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| Preliminary Storm Snowfall Sunday and Monday January 8-9 2017 |
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
803 AM MST TUE JAN 10 2017
...MAJOR LONG DURATION WINTER STORM TO IMPACT THE WEST THROUGH
WEDNESDAY NIGHT...
...WINTER STORM WATCH TONIGHT THROUGH WEDNESDAY NIGHT FOR THE
CODY FOOTHILLS AND NORTHERN BIGHORN BASIN...
.SEVERAL WEATHER SYSTEMS WILL IMPACT THE WEST THROUGH WEDNESDAY
NIGHT BRINGING MULTIPLE PERIODS OF MODERATE TO HEAVY SNOW AND
WIND. THE POTENTIAL FOR HEAVY SNOW WILL ALSO MOVE INTO PARTS OF
NORTH CENTRAL WYOMING TUESDAY NIGHT THROUGH WEDNESDAY NIGHT.
STAR VALLEY-
INCLUDING THE CITIES OF...AFTON...ALPINE...STAR VALLEY RANCH...
THAYNE
803 AM MST TUE JAN 10 2017
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST
THURSDAY...
* TIMING...SNOW WILL CONTINUE AT VARYING INTENSITIES THROUGH THE
PERIOD. THE HEAVIEST SNOW IS EXPECTED THIS MORNING AND
ESPECIALLY TONIGHT THROUGH WEDNESDAY MORNING.
* SNOWFALL SO FAR...6 TO 12 INCHES THROUGH 7 AM TUESDAY.
* TOTAL SNOW...1 TO 2 FEET WITH THE HEAVIER AMOUNTS TOWARDS THE
NORTH END OF THE VALLEY.
* WIND AND VISIBILITY...SOUTHWEST WIND INCREASING TO 15 TO 25
MPH WITH GUSTS TO 35 MPH IN OPEN AREAS. VISIBILITIES UNDER ONE
QUARTER MILE AT TIMES IN SNOW AND BLOWING SNOW.
* MAIN IMPACT...ROADS AND HIGHWAYS WILL BECOME SLICK AND SNOW
PACKED WITH SHARPLY REDUCED VISIBILITY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... AND
OR BLOWING SNOW ARE EXPECTED OR OCCURRING. THIS COULD MAKE TRAVEL
VERY HAZARDOUS OR IMPOSSIBLE. IF YOU MUST TRAVEL KEEP SOME FOOD...
WATER... AND AN EXTRA FLASHLIGHT IN YOUR VEHICLE IN CASE OF AN
EMERGENCY. CHECK THE LATEST ROAD CONDITIONS AT WYOROAD.INFO OR BY
DIALING 5 1 1.
Statement from Pocatello Weather Forecast Office for Eastern Idaho
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE POCATELLO ID
741 AM MST TUE JAN 10 2017
...FREEZING RAIN, HEAVY HIGH ELEVATION SNOW ARRIVES TODAY...
.YET ANOTHER ROUND OF PRECIPITATION IN THIS VERY WET PATTERN WILL
IMPACT SOUTHEASTERN IDAHO TUESDAY AND TUESDAY NIGHT. SNOW LEVELS
WILL RISE DURING THE AFTERNOON HOURS ENOUGH FOR MIXED RAIN AND
SNOW SOUTH OF ATOMIC CITY, AND MORE PERSISTENT SNOW EXPECTED TO
THE NORTH OF THERE. AN ADDITIONAL 1 TO 2 FEET OF SNOW IS EXPECTED
IN THE NORTHERN WASATCH AND THE SAWTOOTH RECREATION AREA AT
ELEVATIONS ABOVE 7500 FEET. AT SNOW LEVELS BETWEEN 6000 AND
7500 FEET SNOW ACCUMULATIONS OF 6 TO 10 INCHES ARE EXPECTED.
THERE IS ONE MORE ROUND OF PRECIPITATION EXPECTED TO AFFECT THIS
AREA ON WEDNESDAY THAT SHOULD PRODUCE A BIT LESS PRECIPITATION.
FOR THOSE OUT AND ABOUT IN THE IDAHO BACK COUNTRY, KEEP CURRENT
ON THE LATEST WEATHER UPDATES THROUGH WEDNESDAY.
UPPER SNAKE HIGHLANDS-CARIBOU HIGHLANDS-
WASATCH MOUNTAINS/IDAHO PORTION-
INCLUDING THE CITIES OF ST. ANTHONY, ASHTON, ISLAND PARK, DRIGGS,
VICTOR, HENRY, SODA SPRINGS, DOWNEY, LAVA HOT SPRINGS,
AND MONTPELIER
741 AM MST TUE JAN 10 2017
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MST
THURSDAY...
* IMPACTS...HEAVY SNOWFALL RATES WILL MAKE IT DIFFICULT FOR ROAD
CREWS TO KEEP EVEN MAJOR HIGHWAYS CLEAR OF SNOW. EXPECT
DIFFICULT RAVELING CONDITIONS AND POSSIBLE ROAD CLOSURES FOR
HIGHWAYS THAT HAVE HIGH ELEVATION PASSES GOING INTO WYOMING
AND MONTANA. BLOWING AND DRIFTING SNOW COULD QUICKLY COVER
RECENTLY PLOWED ROADWAYS.
* TIMING...SNOWFALL RATES HAVE DIMINISHED TEMPORARILY BUT WILL
INCREASE DURING THE AFTERNOON AND PEAK DURING THE EVENING
HOURS TONIGHT. WINDS WILL INCREASE AND BECOME STRONG DURING
THE AFTERNOON AND CONTINUE FAIRLY STRONG ALONG RIDGES AND
THROUGH PASSES DURING THE OVERNIGHT HOURS.
* SNOW ACCUMULATIONS...THESE ARE SNOWFALL ACCUMULATIONS EXPECTED
FOR 24 HOURS ENDING 500 AM WEDNESDAY. FOR AREAS EAST OF
SPENCER IN THE NORTH AND EAST OF MCCAMMON IN THE SOUTH...5 TO
12 INCHES BELOW 6500 FEET ELEVATION AND 10 TO 24 INCHES ABOVE
6500 FEET ELEVATION.
* WIND...SOUTH TO SOUTHWEST WIND WILL INCREASE BY THE AFTERNOON
TO 15 TO 25 MPH AND CAUSE LOW VISIBILITY IN BLOWING SNOW AND
HEAVILY DRIFTING SNOW.
* CONFIDENCE...HIGH CONFIDENCE IN SNOWFALL AMOUNTS ABOVE 6500
FEET MSL. LOW CONFIDENCE BELOW 6500 FEET MSL DUE TO RISING
SNOW LEVELS TUESDAY AFTERNOON AND EVENING.
* LOCATIONS...ISLAND PARK...ASHTON...DRIGGS...SWAN VALLEY...SODA
SPRINGS...MONTPELIER.
PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR
HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR
OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL
MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST
TRAVEL, KEEP AN EXTRA FLASHLIGHT, FOOD AND WATER IN YOUR VEHICLE
IN CASE OF AN EMERGENCY.
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