URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 308 AM MST SAT DEC 20 2014 ...SIGNIFICANT SNOWFALL STILL POSSIBLE THIS WEEKEND... .A MOIST PACIFIC SYSTEM WILL MOVE THROUGH THE INTERMOUNTAIN WEST THIS WEEKEND...SPREADING SNOWFALL ACROSS THE WESTERN MOUNTAINS AND VALLEYS. SNOWFALL MAY BE HEAVY AT TIMES...ESPECIALLY SUNDAY MORNING THROUGH THE EVENING. THIS SYSTEM MAY BRING SIGNIFICANT SNOWFALL ACCUMULATIONS ACROSS THE WESTERN MOUNTAINS AND VALLEYS BEFORE WEAKENING MONDAY MORNING. WYZ001-012-013-023-024-210000- /O.CON.KRIW.WS.A.0014.141221T0300Z-141222T1500Z/ YELLOWSTONE NATIONAL PARK-TETON AND GROS VENTRE MOUNTAINS- JACKSON HOLE-STAR VALLEY-SALT RIVER AND WYOMING RANGES- INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL... JACKSON...AFTON...ALPINE...STAR VALLEY RANCH...THAYNE 308 AM MST SAT DEC 20 2014 ...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH MONDAY MORNING... A WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH MONDAY MORNING. * SUMMARY AND TIMING...SNOWFALL WILL MOVE INTO WESTERN WYOMING THIS EVENING...AND MAY BECOME HEAVY ON SUNDAY ACROSS THE AREA BEFORE WEAKENING ON MONDAY MORNING. * SNOW ACCUMULATIONS...THE VALLEY LOCATIONS MAY SEE 6 TO 10 INCHES OF SNOWFALL WITH THIS SYSTEM WITH THE HIGHER ACCUMULATIONS EXPECTED ACROSS THE NORTHERN PORTION OF THE JACKSON VALLEY. MOUNTAIN LOCATIONS COULD SEE 12 TO 16 INCHES... WITH LOCALLY HIGHER AMOUNTS UP TO 24 INCHES. * WIND AND VISIBILITY...WIND WILL BE STRONGEST OVER THE HIGHER ELEVATIONS...AND MAY IMPACT MOUNTAIN PASSES WITH WEST WIND OF 25 TO 35 MPH WITH GUSTS OVER 50 MPH. EVEN THE LOWER ELEVATIONS WILL SEE SOUTHWEST WIND INCREASING TO 15 TO 25 MPH ON SUNDAY WITH GUSTS TO 35 MPH IN OPEN AREAS. THE WIND AND SNOWFALL WILL LIMIT THE VISIBILITY TO UNDER ONE HALF MILE AT TIMES. * IMPACTS...THE COMBINATION OF SNOWFALL AND WIND OVER THE HIGHER ELEVATIONS WOULD HAVE AN ADVERSE IMPACT ON TRAVELERS ACROSS THE AREA. SIGNIFICANT SNOWFALL ACROSS THE VALLEYS WILL CREATE HAZARDOUS DRIVING CONDITIONS DUE TO SNOW PACKED ROADWAYS. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR HAZARDOUS WINTER WEATHER IN AND CLOSE TO THE WATCH AREA. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO.
Saturday, December 20, 2014
Snow Possibly Heavy in Star Valley Tonight and Sunday
Friday, December 19, 2014
Winter Storm Watch Issued for Star Valley this weekend.
| Winter Storm Watch valid until December 22 8:00am MST |
URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 256 AM MST FRI DEC 19 2014 ...SIGNIFICANT SNOWFALL POSSIBLE THIS WEEKEND... .A MOIST PACIFIC SYSTEM WILL MOVE THROUGH THE INTERMOUNTAIN WEST THIS WEEKEND...SPREADING SNOWFALL ACROSS THE WESTERN MOUNTAINS AND VALLEYS. SNOWFALL MAY BE HEAVY AT TIMES...ESPECIALLY SUNDAY AFTERNOON AND EVENING. THIS SYSTEM MAY BRING SIGNIFICANT SNOWFALL ACCUMULATIONS ACROSS THE WESTERN MOUNTAINS AND VALLEYS BEFORE WEAKENING MONDAY MORNING. WYZ001-012-013-023-024-200000- /O.NEW.KRIW.WS.A.0014.141221T0300Z-141222T1500Z/ YELLOWSTONE NATIONAL PARK-TETON AND GROS VENTRE MOUNTAINS- JACKSON HOLE-STAR VALLEY-SALT RIVER AND WYOMING RANGES- INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL... JACKSON...AFTON...ALPINE...STAR VALLEY RANCH...THAYNE 256 AM MST FRI DEC 19 2014 ...WINTER STORM WATCH IN EFFECT FROM SATURDAY EVENING THROUGH MONDAY MORNING... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WATCH...WHICH IS IN EFFECT FROM SATURDAY EVENING THROUGH MONDAY MORNING. * SUMMARY AND TIMING...SNOWFALL WILL MOVE INTO WESTERN WYOMING SATURDAY EVENING...AND MAY BECOME HEAVY ON SUNDAY ACROSS THE AREA BEFORE WEAKENING ON MONDAY MORNING. * SNOW ACCUMULATIONS...THE VALLEY LOCATIONS MAY SEE 5 TO 10 INCHES OF SNOWFALL WITH THIS SYSTEM WITH THE HIGHER ACCUMULATIONS EXPECTED ACROSS THE NORTHERN PORTION OF THE JACKSON VALLEY. MOUNTAIN LOCATIONS COULD SEE 12 TO 16 INCHES...WITH LOCALLY HIGHER AMOUNTS TO 24 INCHES. * WIND AND VISIBILITY...WIND WILL BE STRONGEST OVER THE HIGHER ELEVATIONS...AND MAY IMPACT MOUNTAIN PASSES WITH WEST WIND OF 25 TO 35 MPH WITH GUSTS OVER 50 MPH. EVEN THE LOWER ELEVATIONS WILL SEE SOUTHWEST WIND INCREASING TO 15 TO 25 MPH ON SUNDAY WITH GUSTS TO 35 MPH IN OPEN AREAS. THE WIND AND SNOWFALL WILL LIMIT THE VISIBILITY TO UNDER ONE HALF MILE AT TIMES. * IMPACTS...THE COMBINATION OF SNOWFALL AND WIND OVER THE HIGHER ELEVATIONS WOULD HAVE AN ADVERSE IMPACT ON TRAVELERS ACROSS THE AREA. SIGNIFICANT SNOWFALL ACROSS THE VALLEYS WILL CREATE HAZARDOUS DRIVING CONDITIONS DUE TO SNOW PACKED ROADWAYS. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR HAZARDOUS WINTER WEATHER IN AND CLOSE TO THE WATCH AREA. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. |
Thursday, December 18, 2014
November 2014 World Weather
Christopher Burt, Weather Historian has posted a blog on this past Novembers World Weather. Some amazing events occurred and provides some interesting reading for any weather junky! This includes the dramatic changes that occurred at Casper Wyoming.
November 2014 Global Weather Extremes Summary
By: Christopher C. Burt , 11:54 PM GMT on December 18, 2014
November 2014 Global Weather Extremes Summary
November was globally the 7th warmest such on record according to NOAA and 8th according to NASA (see Jeff Master’s blog for more about this). It was a cold month in the U.S. with some phenomenal lake-effect snowstorms. A powerful storm, dubbed a ‘Medicane’ formed in the Mediterranean Sea. Deadly floods occurred in Morocco, Italy, and Switzerland. It was the warmest November on record for Australia, Italy, Austria and much of Southeast Asia.
Below are some of the month’s highlights.
NORTH AMERICA
It was the coldest November since 2000 for the contiguous U.S. (and 16th coldest on record) thanks to an exceptional arctic outbreak in the middle of the month. In Casper, Wyoming the temperature fell to -27°F (-32.8°C) on November 12th, its coldest on record for November. Amazingly, this was a drop of some -99°F (55°C) between November 1st, when the temperature peaked at 72°F (22.2°C) tying the record for warmest November temperature ever observed in the city to November 12th when the monthly record low occurred.
The temperature in Casper, Wyoming fell from a November record high (actually a tie for such) on November 1st to a November monthly record low by November 12th. Table from NWS-Riverton.
The cold air was mostly confined to the eastern two-thirds of the nation and was most persistent in the Southeast where several sites (Macon in Georgia, Mobile in Alabama, and Gainesville in Florida) endured their coldest or 2nd coldest November on record. Early season snowfall accompanied the cold in the region with Columbus, South Carolina recording its earliest snowfall on record (just a trace officially—although over one inch fell in the suburbs) on November 3rd. This early snowfall occurred one week after a daily record high of 87°F (30.6°C) was observed on October 26th!. Following the cold wave, unusually mild air surged north across the eastern U.S. and Canada where the town of Saint Anicet, Quebec (just southwest of Montreal) reached 21.3°C (70.3°F) on November 24th.
In contrast to most of the country, California had its 8th warmest November on record and remains on track for its warmest year ever observed (since 1895). It was also exceptionally mild in Alaska where King Salmon had its warmest November on record (since 1916). McGrath reached 50°F (10°C) on November 12th, a new November monthly record and smashing the previous latest 50°-reading-on-record by 21 days, the previous latest being on October 22nd. One of the most intense extra-tropical storms on record churned through the Bering Sea on November 7-8 when a buoy off the coast of Siberia measured a pressure reading of 929.8 mb. The estimated actual minimum pressure of the storm was said to be as low as 924 mb (27.29”), which would be close to, if not actually, the lowest such ever observed for an extra-tropical storm in the Pacific Ocean.
State-by-state temperature ranking (top map) and precipitation ranking (bottom map) for November. For a wide swath of central and southeastern U.S. it was one of the top 10 coldest Novembers on record.Maps from NCDC.
One of the most remarkable features of the month was the tremendous lake-effect snowfall in Wisconsin, Michigan, and New York State. Gile, Wisconsin picked up 48.3” (123 cm) of snow in 72 hours on November 10-13, leading to a November monthly total of 110.6” (281 cm): the greatest monthly snow total in Wisconsin state records (the previous record was 103.5” (263 cm) at Hurley in January 1997. Even more remarkable were the two back-to-back lake effect snows that buried communities just to the south and east of Buffalo, New York between November 18-20. An astonishing 88” (224 cm) was measured in the town of Cowlesville in Wyoming County, and 80” (203 cm) near Hamburg. There were 14 storm-related fatalities including one victim who was literally buried inside his car.
Towns south of Buffalo saw up to 88” of snow fall over a three-day period on November 18-20, one of the greatest lake-effect snowfalls in history for the U.S. Photo by Kyle Duley posted on Twitter.
SOUTH AMERICA and CENTRAL AMERICA
Exceptional heat continued to grip portions of southern South America during the month with Cochabamba, Bolivia reaching an all-time record of 35.6°C (96.1°F) on November 6th and 7th (POR since 1949). What is remarkable about this figure is that Cochabamba Airport (where the temperature was observed) rests at an elevation of 2,550 m (10,039 feet). This would be one the warmest temperatures ever measured on Earth at such an altitude. La Paz Observatory, Bolivia reached 27.1°C (80.8°F), its 2nd warmest temperature on record (the all-time record is 27.2°C/81.0°F set in December 1997).
EUROPE
November saw amazingly warm temperatures across much of Western Europe. Many sites broke their all-time November heat records as I blogged about on November 3rd. Late in the month a heat wave again affected the region with temperatures as high as 29.0° (84.2°F) measured at Pollenca, Spain and 26.8°C (80.2°F) at Socoa in France on November 22-24. More heat occurred a week later with a reading of 32.9°C (91.2°F) observed in Capaci, Sicily on November 29th. It was the warmest November on record for Italy (where the temperature averaged an amazing 3.6°C/6.5°F above normal) and also for Austria. France and Switzerland recorded their 2nd warmest Novembers on record.
More intense rainstorms lashed Southern France and Italy during the month. Over 300 mm (11.80”) of rainfall fell in just 3 hours at Carrara, Italy on November 5th and 700 mm (27.56”) fell at Malga Maline over 48 hours during the storm. In mid-November more torrential rain and flash floods hit northern Italy and southern Switzerland where a landslide on November 16th killed two and injured four in Davesco near the Swiss city of Lugano.
A landslide killed two and injured four in the Swiss town of Davesco on November 16th following a downpour of 70 mm in just hours. Photographer not identified.
Nice, in France, endured its wettest month on record with 503 mm (19.80”) of rainfall measured (previous record was 419 mm/16.50” in September 1992). Yet another round of flooding rain hit southern France and Italy again on November 24-26 with Collobrieres in France picking up 251 mm (9.88”) during the course of the storm and Lugo di Nazza in Corsica 480 mm (18.90”) in 24 hours on November 28th.
A powerful tropical storm-like cyclone (called a ‘Medicane’) plowed through the Mediterranean Sea on November 7th passing close to Sicily and Malta where sustained winds as high as 69 mph and gusting to 96 mph were measured. The storms central pressure fell to 979 mb and it took on the appearance of a classic tropical storm (but was not designated as such).
A MODIS satellite image of the “Medicane” on November 7th as it passed close by Malta in the Mediterranean. Image from NASA.
In the U.K. it was generally a mild and wet November (the 5th warmest on record since 1910). The warmest temperature observed was 18.7°C (65.7°F) at Writtle, Essex on November 1st and the coldest -4.6°C (23.7°F) at Cromdale, Moray on November 26th. The greatest 24-hour rainfall measured was 122.6 mm (4.83”) at Alltberg House, Isle of Skye on November 6-7.
AFRICA
The same late November heat wave that baked sothern Europe also affected portions of North Africa when 33.0°C (91.4°F) was measured at Siirt and Zuara, Libya and 33.5°C (92.3°F) at Djerba Island, Tunisia on November 30th.
Deadly flash floods killed at least 32 in southern Morocco near the city of Guelmim during a period of heavy rains in late November. Marrakech was also hit hard with roads washed out and tour buses stranded. Agadir picked up 128 mm (5.04”) of rain in three days November 21-23.
Flooding near the town of Guelmim, Morocco on November 23rd where at least 32 lives were lost. Photo capture from video posted on Facebook by Ayoub Elidrissi.
The hottest temperature measured in the northern hemisphere during November was 42.0°C (107.6°F) at Matam, Senegal on November 1st, 6th, and 14th as well as at Linguere (Senegal) on November 4th.
ASIA
Super Typhoon Nuri became one of the most powerful tropical storms of the year when, on November 2nd, its winds peaked at a sustained 180 mph and its central pressure plummeted to 910 mb. Fortunately, the storm never made landfall and passed well east of Japan before becoming extra-tropical and transforming into one of the most powerful cyclones ever to pass over the Bering Sea between Alaska and Siberia (see North America entry).
Super Typhoon Nuri captured by astronauts on board the International Space Station on November 2nd when the storm was near its peak intensity with 180 mph winds. Image courtesy of the European Space Agency.
November saw some extreme cold form over the Arctic Coastal region of central Russia with Norlisk setting a November monthly cold record of -44.9°C (-48.9°F) on November 25th. The coldest temperature measured in the northern hemisphere during the month was -52.7°C (-62.9°F) at Habardino, Russia on November 28th.
Torrential rains flooded northeastern Malaysia on November 18-19 with 595 mm (23.43”) measured in Kuala Terengganu and 397 mm (15.63”) at Kota Bharu over the course of 48 hours.
AUSTRALIA
It was the warmest November on record for Australia (following the same in October) with the national mean temperature averaging 1.88°C (3.38°F) above normal. It was also drier than usual, with precipitation averaging 22% below normal nation-wide.
Temperature (top map) and precipitation (bottom map) deciles for Australia during November. It was the warmest November on record for the nation. Maps courtesy of the Australian Bureau of Meteorology.
A severe thunderstorm pounded Brisbane, Queensland on November 27th with large hail, winds gusting to 141 kph (88 mph) and torrential rain. 50 mm (1.97”) of rain fell in just 15 minutes at Archerfield Airport (with a storm total of 87.8 mm/3.46”). Extensive damage was reported across the city with losses in excess of US$100 million.
The hottest temperature measured in Australia and the world during the month was 46.1°C (115.0°F) at Roxby Downs, South Australia on November 22nd and the coldest -6.1°C (21.0°F) at Thredbo, New South Wales on November 2nd. The greatest calendar day rainfall was 108 mm (4.25”) at Nashua (Wilsons River), New South Wales on November 27th.
NEW ZEALAND and OCEANIA
November was a relatively normal month weather-wise for New Zealand. The warmest temperature observed was 31.1°C (88.0°F) at Christchurch, South Island on November 22nd and the coldest -3.4°C (25.9°F) at Middlemarch, South Island on November 11th. The greatest calendar day rainfall was 226 mm (8.90”) at Milford Sound, South Island on November 21st. A wind gust of 209 kph (130 mph) was measured at Cape Turnagain, North Island on November 18th.
Atuona in French Polynesia recorded a temperature of 36.0°C (96.8°F) on November 20th. This was just short of the all-time heat record for French Polynesia which was 36.1°C (97.0°F) also set at Atuona on December 12, 1972.
ANTARCTICA
The coldest temperature in the southern hemisphere and the world during November was –58.2°C (-72.8°F) recorded at Concordia on November 1st.
KUDOS Thanks to Maximiliano Herrera for global temperature extremes data and Jeremy Budd and NIWA for New Zealand data.
Christopher C. Burt
Weather Historian
November was globally the 7th warmest such on record according to NOAA and 8th according to NASA (see Jeff Master’s blog for more about this). It was a cold month in the U.S. with some phenomenal lake-effect snowstorms. A powerful storm, dubbed a ‘Medicane’ formed in the Mediterranean Sea. Deadly floods occurred in Morocco, Italy, and Switzerland. It was the warmest November on record for Australia, Italy, Austria and much of Southeast Asia.
Below are some of the month’s highlights.
NORTH AMERICA
It was the coldest November since 2000 for the contiguous U.S. (and 16th coldest on record) thanks to an exceptional arctic outbreak in the middle of the month. In Casper, Wyoming the temperature fell to -27°F (-32.8°C) on November 12th, its coldest on record for November. Amazingly, this was a drop of some -99°F (55°C) between November 1st, when the temperature peaked at 72°F (22.2°C) tying the record for warmest November temperature ever observed in the city to November 12th when the monthly record low occurred.
The temperature in Casper, Wyoming fell from a November record high (actually a tie for such) on November 1st to a November monthly record low by November 12th. Table from NWS-Riverton.
The cold air was mostly confined to the eastern two-thirds of the nation and was most persistent in the Southeast where several sites (Macon in Georgia, Mobile in Alabama, and Gainesville in Florida) endured their coldest or 2nd coldest November on record. Early season snowfall accompanied the cold in the region with Columbus, South Carolina recording its earliest snowfall on record (just a trace officially—although over one inch fell in the suburbs) on November 3rd. This early snowfall occurred one week after a daily record high of 87°F (30.6°C) was observed on October 26th!. Following the cold wave, unusually mild air surged north across the eastern U.S. and Canada where the town of Saint Anicet, Quebec (just southwest of Montreal) reached 21.3°C (70.3°F) on November 24th.
In contrast to most of the country, California had its 8th warmest November on record and remains on track for its warmest year ever observed (since 1895). It was also exceptionally mild in Alaska where King Salmon had its warmest November on record (since 1916). McGrath reached 50°F (10°C) on November 12th, a new November monthly record and smashing the previous latest 50°-reading-on-record by 21 days, the previous latest being on October 22nd. One of the most intense extra-tropical storms on record churned through the Bering Sea on November 7-8 when a buoy off the coast of Siberia measured a pressure reading of 929.8 mb. The estimated actual minimum pressure of the storm was said to be as low as 924 mb (27.29”), which would be close to, if not actually, the lowest such ever observed for an extra-tropical storm in the Pacific Ocean.
State-by-state temperature ranking (top map) and precipitation ranking (bottom map) for November. For a wide swath of central and southeastern U.S. it was one of the top 10 coldest Novembers on record.Maps from NCDC.
One of the most remarkable features of the month was the tremendous lake-effect snowfall in Wisconsin, Michigan, and New York State. Gile, Wisconsin picked up 48.3” (123 cm) of snow in 72 hours on November 10-13, leading to a November monthly total of 110.6” (281 cm): the greatest monthly snow total in Wisconsin state records (the previous record was 103.5” (263 cm) at Hurley in January 1997. Even more remarkable were the two back-to-back lake effect snows that buried communities just to the south and east of Buffalo, New York between November 18-20. An astonishing 88” (224 cm) was measured in the town of Cowlesville in Wyoming County, and 80” (203 cm) near Hamburg. There were 14 storm-related fatalities including one victim who was literally buried inside his car.
Towns south of Buffalo saw up to 88” of snow fall over a three-day period on November 18-20, one of the greatest lake-effect snowfalls in history for the U.S. Photo by Kyle Duley posted on Twitter.
SOUTH AMERICA and CENTRAL AMERICA
Exceptional heat continued to grip portions of southern South America during the month with Cochabamba, Bolivia reaching an all-time record of 35.6°C (96.1°F) on November 6th and 7th (POR since 1949). What is remarkable about this figure is that Cochabamba Airport (where the temperature was observed) rests at an elevation of 2,550 m (10,039 feet). This would be one the warmest temperatures ever measured on Earth at such an altitude. La Paz Observatory, Bolivia reached 27.1°C (80.8°F), its 2nd warmest temperature on record (the all-time record is 27.2°C/81.0°F set in December 1997).
EUROPE
November saw amazingly warm temperatures across much of Western Europe. Many sites broke their all-time November heat records as I blogged about on November 3rd. Late in the month a heat wave again affected the region with temperatures as high as 29.0° (84.2°F) measured at Pollenca, Spain and 26.8°C (80.2°F) at Socoa in France on November 22-24. More heat occurred a week later with a reading of 32.9°C (91.2°F) observed in Capaci, Sicily on November 29th. It was the warmest November on record for Italy (where the temperature averaged an amazing 3.6°C/6.5°F above normal) and also for Austria. France and Switzerland recorded their 2nd warmest Novembers on record.
More intense rainstorms lashed Southern France and Italy during the month. Over 300 mm (11.80”) of rainfall fell in just 3 hours at Carrara, Italy on November 5th and 700 mm (27.56”) fell at Malga Maline over 48 hours during the storm. In mid-November more torrential rain and flash floods hit northern Italy and southern Switzerland where a landslide on November 16th killed two and injured four in Davesco near the Swiss city of Lugano.
A landslide killed two and injured four in the Swiss town of Davesco on November 16th following a downpour of 70 mm in just hours. Photographer not identified.
Nice, in France, endured its wettest month on record with 503 mm (19.80”) of rainfall measured (previous record was 419 mm/16.50” in September 1992). Yet another round of flooding rain hit southern France and Italy again on November 24-26 with Collobrieres in France picking up 251 mm (9.88”) during the course of the storm and Lugo di Nazza in Corsica 480 mm (18.90”) in 24 hours on November 28th.
A powerful tropical storm-like cyclone (called a ‘Medicane’) plowed through the Mediterranean Sea on November 7th passing close to Sicily and Malta where sustained winds as high as 69 mph and gusting to 96 mph were measured. The storms central pressure fell to 979 mb and it took on the appearance of a classic tropical storm (but was not designated as such).
A MODIS satellite image of the “Medicane” on November 7th as it passed close by Malta in the Mediterranean. Image from NASA.
In the U.K. it was generally a mild and wet November (the 5th warmest on record since 1910). The warmest temperature observed was 18.7°C (65.7°F) at Writtle, Essex on November 1st and the coldest -4.6°C (23.7°F) at Cromdale, Moray on November 26th. The greatest 24-hour rainfall measured was 122.6 mm (4.83”) at Alltberg House, Isle of Skye on November 6-7.
AFRICA
The same late November heat wave that baked sothern Europe also affected portions of North Africa when 33.0°C (91.4°F) was measured at Siirt and Zuara, Libya and 33.5°C (92.3°F) at Djerba Island, Tunisia on November 30th.
Deadly flash floods killed at least 32 in southern Morocco near the city of Guelmim during a period of heavy rains in late November. Marrakech was also hit hard with roads washed out and tour buses stranded. Agadir picked up 128 mm (5.04”) of rain in three days November 21-23.
Flooding near the town of Guelmim, Morocco on November 23rd where at least 32 lives were lost. Photo capture from video posted on Facebook by Ayoub Elidrissi.
The hottest temperature measured in the northern hemisphere during November was 42.0°C (107.6°F) at Matam, Senegal on November 1st, 6th, and 14th as well as at Linguere (Senegal) on November 4th.
ASIA
Super Typhoon Nuri became one of the most powerful tropical storms of the year when, on November 2nd, its winds peaked at a sustained 180 mph and its central pressure plummeted to 910 mb. Fortunately, the storm never made landfall and passed well east of Japan before becoming extra-tropical and transforming into one of the most powerful cyclones ever to pass over the Bering Sea between Alaska and Siberia (see North America entry).
Super Typhoon Nuri captured by astronauts on board the International Space Station on November 2nd when the storm was near its peak intensity with 180 mph winds. Image courtesy of the European Space Agency.
November saw some extreme cold form over the Arctic Coastal region of central Russia with Norlisk setting a November monthly cold record of -44.9°C (-48.9°F) on November 25th. The coldest temperature measured in the northern hemisphere during the month was -52.7°C (-62.9°F) at Habardino, Russia on November 28th.
Torrential rains flooded northeastern Malaysia on November 18-19 with 595 mm (23.43”) measured in Kuala Terengganu and 397 mm (15.63”) at Kota Bharu over the course of 48 hours.
AUSTRALIA
It was the warmest November on record for Australia (following the same in October) with the national mean temperature averaging 1.88°C (3.38°F) above normal. It was also drier than usual, with precipitation averaging 22% below normal nation-wide.
Temperature (top map) and precipitation (bottom map) deciles for Australia during November. It was the warmest November on record for the nation. Maps courtesy of the Australian Bureau of Meteorology.
A severe thunderstorm pounded Brisbane, Queensland on November 27th with large hail, winds gusting to 141 kph (88 mph) and torrential rain. 50 mm (1.97”) of rain fell in just 15 minutes at Archerfield Airport (with a storm total of 87.8 mm/3.46”). Extensive damage was reported across the city with losses in excess of US$100 million.
The hottest temperature measured in Australia and the world during the month was 46.1°C (115.0°F) at Roxby Downs, South Australia on November 22nd and the coldest -6.1°C (21.0°F) at Thredbo, New South Wales on November 2nd. The greatest calendar day rainfall was 108 mm (4.25”) at Nashua (Wilsons River), New South Wales on November 27th.
NEW ZEALAND and OCEANIA
November was a relatively normal month weather-wise for New Zealand. The warmest temperature observed was 31.1°C (88.0°F) at Christchurch, South Island on November 22nd and the coldest -3.4°C (25.9°F) at Middlemarch, South Island on November 11th. The greatest calendar day rainfall was 226 mm (8.90”) at Milford Sound, South Island on November 21st. A wind gust of 209 kph (130 mph) was measured at Cape Turnagain, North Island on November 18th.
Atuona in French Polynesia recorded a temperature of 36.0°C (96.8°F) on November 20th. This was just short of the all-time heat record for French Polynesia which was 36.1°C (97.0°F) also set at Atuona on December 12, 1972.
ANTARCTICA
The coldest temperature in the southern hemisphere and the world during November was –58.2°C (-72.8°F) recorded at Concordia on November 1st.
KUDOS Thanks to Maximiliano Herrera for global temperature extremes data and Jeremy Budd and NIWA for New Zealand data.
Christopher C. Burt
Weather Historian
White Christmas Assured for Star Valley
It appears that Western Wyoming will be coming under the influence of a moist flow of air from the Pacific over the weekend, continuing into the middle of Christmas week. Significant snow should occur over the mountains with snow and possibly some rain in Star Valley.
This change is the subject of this weeks weather video from the Riverton Forecast Office.
Weekly Weather Video
This change is the subject of this weeks weather video from the Riverton Forecast Office.
Weekly Weather Video
Tuesday, December 16, 2014
Snow Pack Off to a Good Start in Western Wyoming
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| Scene from Star Valley Ranch in the wake of Weekend Snowfall. |
While officially Winter is still a week away and the important snowfall season is still ahead, it is instructive to look at the current snowpack conditions across Wyoming and the Western States. The highlight is that most of the west has a weak start to the snowpack with the exception of Western Wyoming.
Following is a map of the state of snowpack over the west.
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| Dec 16 2014 SWE % of Normal |
Much of western Wyoming is the exception with generally above normal SWE.
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| Wyoming SWE % of Normal December 16 2014 |
Cottonwood SNOTEL as of December 16,2014 is running well above normal for the water year beginning Oct 1st.
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| Cottonwood Creek SNOTEL
Willow Creek SNOTEL is also running above normal.
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| Willow Creek SNOTEL
For comparison purposes for the period of October 1-December 16 2014 the 52 inches of snow measured at Star Valley Ranch is close to the 50 inches for the same period last winter.
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Monday, December 15, 2014
Final Snowfall Total for Weekend Storm
PUBLIC INFORMATION STATEMENT NATIONAL WEATHER SERVICE RIVERTON WY 118 PM MST MON DEC 15 2014 ...SNOW COMES TO MANY AREAS OF WESTERN WYOMING SUNDAY... SNOWFALL TOTALS FROM SUNDAY DECEMBER 14 THROUGH MIDDAY MONDAY DECEMBER 15 ARE INCLUDED IN THIS COUNTY-BY-COUNTY LIST. A LARGE LOW PRESSURE SYSTEM NOW IN THE CENTRAL PLAINS ROTATED MOISTURE NORTH AND WEST ACROSS WYOMING. AN ALMOST CONTINUOUS LIGHT SNOW FELL ACROSS MANY AREAS FROM EARLY SUNDAY MORNING THROUGH SUNRISE MONDAY. LOCATION SNOWFALLLINCOLN COUNTY... 5 NNE THAYNE... 8.5 INCHES. STAR VALLEY RANCH... 5.7 INCHES. WILLOW CREEK SNOTEL... 5 INCHES. AFTON... 4.4 INCHES. COMMISSARY RIDGE... 4 INCHES. BLIND BULL SUMMIT... 4 INCHES. 5 SSE SMOOT... 4 INCHES. 2 SE THAYNE... 3.8 INCHES. COTTONWOOD CREEK SNOTEL... 3 INCHES. BOX Y RANCH... 3 INCHES. SPRING CREEK DIVIDE SNOTEL... 1 INCH. SALT RIVER SUMMIT SNOTEL... 1 INCH. BLIND BULL SUMMIT SNOTEL... 1 INCH. KELLEY RANGER STATION SNOTEL... 1 INCH. HAMS FORK SNOTEL... 1 INCH.BIG HORN COUNTY... BONE SPRINGS DIVIDE SNOTEL... 7 INCHES. BALD MOUNTAIN SNOTEL... 5 INCHES. SHELL CREEK SNOTEL... 4 INCHES. 2 SSW LOVELL... 2.5 INCHES. 26 E LOVELL... 2 INCHES. SHELL... 0.5 INCHES. POWELL FIELD STATION... 0.3 INCHES. BURLINGTON... 0.2 INCHES. FREMONT COUNTY... BLUE RIDGE... 8 TO 10 INCHES. ST. LAWRENCE ALT SNOTEL... 9 INCHES. TOWNSEND CREEK SNOTEL... 9 INCHES. 6 SE LANDER... 8.3 INCHES. HOBBS PARK SNOTEL... 8 INCHES. 9 S LANDER... 8 INCHES. BURRIS... 8 INCHES. 3 SW LANDER... 7.3 INCHES. COLD SPRINGS SNOTEL... 7 INCHES. DEER PARK SNOTEL... 7 INCHES. 9 SSE LANDER... 7 INCHES. LANDER... 5 TO 7 INCHES. LOUIS LAKE... 6 INCHES. SOUTH PASS SNOTEL... 6 INCHES. SWEETWATER STATION... 6 INCHES. SINKS CANYON... 6 INCHES. HUDSON... 5.7 INCHES. 7 WNW LANDER... 5.6 INCHES. 6 SW LANDER... 5.6 INCHES. JEFFREY CITY... 5 INCHES. CASTLE CREEK SNOTEL... 5 INCHES. BROOKS LAKE... 5 INCHES. 9.5 SW LANDER... 5 INCHES. ATLANTIC CITY... 4.7 INCHES. 7 ESE KINNEAR... 4.5 INCHES. LITTLE WARM SNOTEL... 4 INCHES. BURROUGHS CREEK SNOTEL... 4 INCHES. DUBOIS... 3.5 INCHES. RIVERTON AIRPORT... 3.2 INCHES. 10 NW RIVERTON... 3 INCHES. RIVERTON... 2.2 INCHES. 10 WNW DUBOIS... 1.5 INCHES. DUBOIS... 1 INCH. BOYSEN DAM... 1 INCH. 10 NNE RIVERTON... 0.4 INCHES. HOT SPRINGS COUNTY... 9 NE THERMOPOLIS... 13.4 INCHES. THERMOPOLIS... 8.6 INCHES. OWL CREEK SNOTEL... 7 INCHES. 8 W THERMOPOLIS... 7 INCHES. THERMOPOLIS... 4 TO 5 INCHES. JOHNSON COUNTY... CLOUD PEAK RESERVOIR SNOTEL... 13 INCHES. LITTLE GOOSE SNOTEL... 11 INCHES. HANSEN SAWMILL SNOTEL... 10 INCHES. SOLDIER PARK SNOTEL... 7 INCHES. BEAR TRAP MEADOW SNOTEL... 6 INCHES. KAYCEE... 5 INCHES. 4 SSW BUFFALO... 0.4 INCHES. BUFFALO... 0.2 INCHES. NATRONA COUNTY... CASPER... 7 TO 10 INCHES. POWDER RIVER... 9.5 INCHES. CASPER AIRPORT... 9.3 INCHES. 1 SW CASPER... 9.25 INCHES. CASPER MOUNTAIN SNOTEL... 9 INCHES. PARADISE VALLEY... 9 INCHES. 10 WSW CASPER... 8.3 INCHES. 2 S CASPER... 8.3 INCHES. 2 SW CASPER... 8.3 INCHES. 11 ESE CASPER... 8 INCHES. RENO HILL SNOTEL... 8 INCHES. EVANSVILLE... 8 INCHES. 5 SSW CASPER... 8 INCHES. CASPER MOUNTAIN... 7 INCHES. GRAVE SPRING SNOTEL... 6 INCHES. MIDWEST... 5 INCHES. 1 N CASPER... 5 INCHES. PARK COUNTY... 6 SW CODY... 12 INCHES. MARQUETTE SNOTEL... 9 INCHES. 3 NE SUNSHINE... 8.2 INCHES. 2 WSW CODY... 7 INCHES. 5 ESE CODY... 6 INCHES. CODY... 6 INCHES. TIMBER CREEK SNOTEL... 6 INCHES. 4 SE CODY... 5.8 INCHES. KIRWIN SNOTEL... 5 INCHES. BLACKWATER SNOTEL... 5 INCHES. MEETEETSE... 5 INCHES. WOLVERINE SNOTEL... 4 INCHES. 26 SW CODY... 4 INCHES. BEARTOOTH LAKE SNOTEL... 4 INCHES. EVENING STAR SNOTEL... 4 INCHES. 3 NW POWELL... 3.5 INCHES. 3 SW RALSTON... 3 INCHES. 1 NNE CLARK... 2 INCHES. 4 SW POWELL... 1.2 INCHES. PAHASKA... 1 INCH. POWELL... 1 INCH. MEETEETSE... 0.5 INCHES. 4 ENE POWELL... 0.2 INCHES. SUBLETTE COUNTY... LARSEN CREEK SNOTEL... 6 INCHES. BIG SANDY OPENING SNOTEL... 5 INCHES. POCKET CREEK SNOTEL... 4 INCHES. ELKHART PARK G.S. SNOTEL... 3 INCHES. EAST RIM DIVIDE SNOTEL... 2 INCHES. GUNSITE PASS SNOTEL... 2 INCHES. PINEDALE... 1.2 INCHES. KENDALL RANGER STATION SNOTEL... 1 INCH. LOOMIS PARK SNOTEL... 1 INCH. 14 NW PINEDALE... 1 INCH. NEW FORK LAKE SNOTEL... 1 INCH. BOULDER REARING STATION... 1 INCH. BONDURANT... 0.9 INCHES. MARBLETON... 0.5 INCHES. BIG PINEY... 0.5 INCHES. MERNA... 0.1 INCHES. DANIEL FISH HATCHERY... 0.1 INCHES. SWEETWATER COUNTY... 7 SSE ROCK SPRINGS... 2.6 INCHES. 5 N FARSON... 1.2 INCHES. GREEN RIVER... 0.5 TO 1 INCH. 2 NE ROCK SPRINGS... 0.5 INCHES. ROCK SPRINGS... 0.5 INCHES. TETON COUNTY... TOGWOTEE MOUNTAIN LODGE... 11 INCHES. GRAND TARGHEE - CHIEF JOSEPH... 9 INCHES. GRAND TARGHEE SNOTEL... 7 INCHES. JACKSON HOLE - RENDEZVOUS BOWL... 7 INCHES. TOGWOTEE PASS SNOTEL... 6 INCHES. MOOSE... 4 TO 6 INCHES. GROS VENTRE SUMMIT SNOTEL... 5 INCHES. SNOW KING... 5 INCHES. 12 NE JACKSON... 5 INCHES. JACKSON HOLE - RAYMER... 4.2 INCHES. 1 NNW ALTA... 3 INCHES. JACKSON HOLE - MID MOUNTAIN... 3 INCHES. GRASSY LAKE SNOTEL... 3 INCHES. 2 NE TETON VILLAGE... 2.7 INCHES. JACKSON... 2.5 INCHES. DARWIN RANCH... 2.2 INCHES. JACKSON HOLE - BASE... 2 INCHES. 4 SW JACKSON... 1.5 INCHES. BASE CAMP SNOTEL... 1 INCH. SNAKE RIVER STN SNOTEL... 1 INCH. 3 SSW WILSON... 0.7 INCHES. 2 SW WILSON... 0.5 INCHES. WASHAKIE COUNTY... 14 SSE TEN SLEEP... 12 INCHES. 16 SSE TEN SLEEP... 9.7 INCHES. POWDER RIVER PASS SNOTEL... 9 INCHES. MIDDLE POWDER SNOTEL... 9 INCHES. 3 S WORLAND... 7.5 INCHES. 27 S TEN SLEEP... 5.4 INCHES. 8 SW WORLAND... 4 INCHES. WINCHESTER... 4 INCHES. YELLOWSTONE NATIONAL PARK... SYLVAN LAKE SNOTEL... 5 INCHES. PARKER PEAK SNOTEL... 5 INCHES. TWO OCEAN PLATEAU SNOTEL... 4 INCHES. CANYON SNOTEL... 4 INCHES. OLD FAITHFUL RANGER STATION... 4 INCHES. SYLVAN ROAD SNOTEL... 3 INCHES. THUMB DIVIDE SNOTEL... 3 INCHES. TOWER FALLS RANGER STATION... 1.8 INCHES. LAMAR RANGER STATION... 1.4 INCHES. LEWIS LAKE DIVIDE SNOTEL... 1 INCH.
Sunday, December 14, 2014
Snowfall Totals as of Sunday Afternoon December 14 2014
As of 6pm Sunday evening the snowfall total at Star Valley Ranch was 6.5 inches. Following
is the report issued by Riverton Foecast Office early Sunday
afternoon.
A LOW PRESSURE SYSTEM IN SOUTHWEST KANSAS WAS LOFTING MOISTURE NORTH AND WEST ACROSS WYOMING SUNDAY. LIGHT SNOW WAS CONTINUING TO FALL IN MANY LOCATIONS AS OF MID AFTERNOON SUNDAY. BELOW ARE STORM TOTAL SNOW ACCUMULATIONS AS OF 1PM SUNDAY. LOCATION SNOWFALLLINCOLN COUNTY... 5 NNE THAYNE... 4 INCHES. WILLOW CREEK SNOTEL... 4 INCHES. STAR VALLEY RANCH... 3.2 INCHES. AFTON... 2.3 INCHES. 2 SE THAYNE... 2 INCHES. BLIND BULL SUMMIT... 2 INCHES. 5 SSE SMOOT... 2 INCHES. COMMISSARY RIDGE... 2 INCHES. BLIND BULL SUMMIT SNOTEL... 1 INCH. SPRING CREEK DIVIDE SNOTEL... 1 INCH. COTTONWOOD CREEK SNOTEL... 1 INCH. SALT RIVER SUMMIT SNOTEL... 1 INCH. BOX Y RANCH... 1 INCH. HAMS FORK SNOTEL... 1 INCH. KELLEY RANGER STATION SNOTEL... 1 INCH.BIG HORN COUNTY... BALD MOUNTAIN SNOTEL... 1 INCH. BONE SPRINGS DIVIDE SNOTEL... 1 INCH. SHELL CREEK SNOTEL... 1 INCH. BURLINGTON... 0.2 INCHES. FREMONT COUNTY... BLUE RIDGE... 8 TO 10 INCHES. TOWNSEND CREEK SNOTEL... 8 INCHES. ST. LAWRENCE ALT SNOTEL... 8 INCHES. 3 SW LANDER... 7.3 INCHES. LOUIS LAKE... 6 INCHES. 6 SE LANDER... 5.3 INCHES. COLD SPRINGS SNOTEL... 5 INCHES. BURRIS... 5 INCHES. LANDER... 3 TO 5 INCHES. HOBBS PARK SNOTEL... 5 INCHES. LANDER AIRPORT... 4.1 INCHES. DEER PARK SNOTEL... 4 INCHES. 1 SW LANDER... 4 INCHES. SOUTH PASS SNOTEL... 4 INCHES. BURROUGHS CREEK SNOTEL... 4 INCHES. 9 S LANDER... 3.9 INCHES. 6 SW LANDER... 3.1 INCHES. 9 SSE LANDER... 3 INCHES. CASTLE CREEK SNOTEL... 3 INCHES. LITTLE WARM SNOTEL... 3 INCHES. BROOKS LAKE... 3 INCHES. 7 WNW LANDER... 2.9 INCHES. DUBOIS... 2 INCHES. RIVERTON AIRPORT... 1.5 INCHES. ATLANTIC CITY... 1.5 INCHES. 10 WNW DUBOIS... 1.5 INCHES. HUDSON... 1 INCH. DUBOIS... 1 INCH. JEFFREY CITY... 1 INCH. RIVERTON... 1 INCH. HOT SPRINGS COUNTY... OWL CREEK SNOTEL... 4 INCHES. THERMOPOLIS... 1.1 INCHES. 9 NE THERMOPOLIS... 0.7 INCHES. JOHNSON COUNTY... LITTLE GOOSE SNOTEL... 3 INCHES. HANSEN SAWMILL SNOTEL... 1 INCH. CLOUD PEAK RESERVOIR SNOTEL... 1 INCH. BEAR TRAP MEADOW SNOTEL... 1 INCH. SOLDIER PARK SNOTEL... 1 INCH. NATRONA COUNTY... CASPER MOUNTAIN SNOTEL... 7 INCHES. RENO HILL SNOTEL... 5 INCHES. CASPER MOUNTAIN... 2 INCHES. CASPER... 1 TO 2 INCHES. BAR NUNN... 1 INCH. 1 N CASPER... 1 INCH. GRAVE SPRING SNOTEL... 1 INCH. 2 SW CASPER... 1 INCH. PARADISE VALLEY... 0.9 INCHES. 11 WSW CASPER... 0.5 INCHES. POWDER RIVER... 0.5 INCHES. CASPER... 0.4 INCHES. 10 WSW CASPER... 0.3 INCHES. MIDWEST... 0.1 INCHES. PARK COUNTY... MARQUETTE SNOTEL... 5 INCHES. 26 SW CODY... 4 INCHES. 6 SW CODY... 3.5 INCHES. BLACKWATER SNOTEL... 3 INCHES. BEARTOOTH LAKE SNOTEL... 3 INCHES. TIMBER CREEK SNOTEL... 3 INCHES. EVENING STAR SNOTEL... 3 INCHES. KIRWIN SNOTEL... 3 INCHES. CODY... 1 TO 3 INCHES. 5 ESE CODY... 2 INCHES. 3 NE SUNSHINE... 1.3 INCHES. 4 SE CODY... 1.2 INCHES. 2 WSW CODY... 1 INCH. WOLVERINE SNOTEL... 1 INCH. MEETEETSE... 0.5 INCHES. PAHASKA... 0.5 INCHES. RALSTON... 0.1 INCHES. SUBLETTE COUNTY... LARSEN CREEK SNOTEL... 5 INCHES. BIG SANDY OPENING SNOTEL... 4 INCHES. POCKET CREEK SNOTEL... 3 INCHES. ELKHART PARK G.S. SNOTEL... 3 INCHES. EAST RIM DIVIDE SNOTEL... 1 INCH. LOOMIS PARK SNOTEL... 1 INCH. KENDALL RANGER STATION SNOTEL... 1 INCH. GUNSITE PASS SNOTEL... 1 INCH. NEW FORK LAKE SNOTEL... 1 INCH. MARBLETON... 0.5 INCHES. 14 NW PINEDALE... 0.5 INCHES. BIG PINEY... 0.5 INCHES. PINEDALE... 0.2 INCHES. DANIEL FISH HATCHERY... 0.1 INCHES. MERNA... 0.1 INCHES. SWEETWATER COUNTY... GREEN RIVER... 0.5 TO 1 INCH. ROCK SPRINGS... 0.5 INCHES. 5 N FARSON... 0.3 INCHES. TETON COUNTY... TOGWOTEE MOUNTAIN LODGE... 6 INCHES. GRAND TARGHEE SNOTEL... 4 INCHES. GRAND TARGHEE - CHIEF JOSEPH... 3 INCHES. TOGWOTEE PASS SNOTEL... 3 INCHES. GRASSY LAKE SNOTEL... 3 INCHES. JACKSON HOLE - RENDEZVOUS BOWL... 3 INCHES. JACKSON HOLE - RAYMER... 3 INCHES. MOOSE... 3 INCHES. JACKSON HOLE - MID MOUNTAIN... 3 INCHES. GROS VENTRE SUMMIT SNOTEL... 3 INCHES. 12 NE JACKSON... 3 INCHES. SNOW KING... 2 INCHES. 4 SW JACKSON... 1.5 INCHES. JACKSON... 1.5 INCHES. SNAKE RIVER STN SNOTEL... 1 INCH. BASE CAMP SNOTEL... 1 INCH. 2 NE TETON VILLAGE... 0.7 INCHES. JACKSON HOLE - BASE... 0.5 INCHES. 2 SW WILSON... 0.5 INCHES. WASHAKIE COUNTY... MIDDLE POWDER SNOTEL... 3 INCHES. POWDER RIVER PASS SNOTEL... 1 INCH. WORLAND... 1 INCH. 27 S TEN SLEEP... 0.3 INCHES. 16 SSE TEN SLEEP... 0.2 INCHES. YELLOWSTONE NATIONAL PARK... OLD FAITHFUL RANGER STATION... 4 INCHES. PARKER PEAK SNOTEL... 4 INCHES. THUMB DIVIDE SNOTEL... 3 INCHES. SYLVAN LAKE SNOTEL... 3 INCHES. TWO OCEAN PLATEAU SNOTEL... 3 INCHES. CANYON SNOTEL... 1 INCH. SYLVAN ROAD SNOTEL... 1 INCH. LEWIS LAKE DIVIDE SNOTEL... 1 INCH. TOWER FALLS RANGER STATION... 0.8 INCHES. LAMAR RANGER STATION... 0.2 INCHES.
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