Winter Storm Warning Southeastern Idaho to Wyoming Border and North of Star Valley

Model Forecast Total Snowfall from Monday Evening until Wednesday Evening

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE POCATELLO ID
131 PM MST MON JAN 30 2017

IDZ023-311100-
/O.NEW.KPIH.WS.W.0005.170131T1900Z-170202T0100Z/
CARIBOU HIGHLANDS-
INCLUDING THE CITIES OF HENRY, SODA SPRINGS, DOWNEY,
AND LAVA HOT SPRINGS
131 PM MST MON JAN 30 2017

...WINTER STORM WARNING IN EFFECT FROM NOON TUESDAY TO 6 PM MST
WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A WINTER
STORM WARNING FOR SNOW, WHICH IS IN EFFECT FROM NOON TUESDAY TO 6
PM MST WEDNESDAY.

* IMPACTS...PERIODS OF MODERATE TO HEAVY SNOWFALL MAY CREATE
  HAZARDOUS TRAVEL CONDITIONS OVER MOUNTAIN PASSES. BACK COUNTRY
  ACTIVITIES ARE STRONGLY DISCOURAGED.

* TIMING...MODERATE TO HEAVY SNOWFALL BEGINNING TUESDAY
  AFTERNOON AND CONTINUING THROUGH WEDNESDAY AFTERNOON.

* SNOW ACCUMULATIONS...7 TO 12 INCHES ABOVE 6000 FEET MSL ALONG
  THE WYOMING BORDER FROM PINE CREEK PASS SOUTH TO WAYAN AND 3 TO
  6 INCHES BELOW 6000 FEET MSL FROM SODA SPRINGS NORTHWARD.

* CONFIDENCE...MODERATE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED. 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.

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
316 PM MST MON JAN 30 2017

...PERSISTENT SNOW TO IMPACT NORTHWEST WYOMING TUESDAY THROUGH
WEDNESDAY EVENING...

.A MOIST NORTHWEST FLOW ALOFT WILL PROVIDE SUFFICIENT UPSLOPE
FLOW ACROSS PORTIONS OF NORTHWEST WYOMING TUESDAY MORNING THROUGH
WEDNESDAY NIGHT. SNOWFALL WILL BE HEAVY AT TIMES. BLOWING SNOW
WITH SOUTHWEST WINDS GUSTING UP TO 40 MPH ARE ALSO EXPECTED IN
THE HIGHER ELEVATIONS TUESDAY THROUGH WEDNESDAY.


TETON AND GROS VENTRE MOUNTAINS-JACKSON HOLE-
INCLUDING THE CITY OF...JACKSON
316 PM MST MON JAN 30 2017

...WINTER STORM WARNING IN EFFECT FROM 6 AM TUESDAY TO 11 PM MST
WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER
STORM WARNING FOR TETON AND GROS VENTRE RANGE...WHICH IS IN
EFFECT FROM 6 AM TUESDAY TO 11 PM MST WEDNESDAY. THE WINTER STORM
WATCH IS NO LONGER IN EFFECT.

* TIMING...FLURRIES TO LIGHT SNOW WILL BE POSSIBLE THIS EVENING...
  BUT WILL NOT BECOME MORE PERSISTENT UNTIL TUESDAY MORNING.
  SNOWFALL CHANCES WILL INCREASE FROM NORTH TO SOUTH THROUGH THE
  MORNING HOURS TUESDAY. SNOW, HEAVY AT TIMES, WILL BECOME
  ESTABLISHED BY TUESDAY AFTERNOON AND WILL CONTINUE THROUGH
  WEDNESDAY EVENING.

* SNOWFALL TOTALS...12 TO 19 INCHES OVER THE TETONS AND 8 TO 15
  INCHES OVER THE GROS VENTRE RANGE. 16 INCHES OVER THE NORTHERN
  JACKSON VALLEY AND UP TO 10 INCHES IN THE SOUTHERN JACKSON
  VALLEY INCLUDING THE TOWN OF JACKSON.

* MAIN IMPACTS...SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS UP TO 40
  MPH WILL CAUSE BLOWING SNOW AND CONSIDERABLE DEEP DRIFTING OF
  SNOW WITH VISIBILITY NEAR ZERO AT TIMES...ESPECIALLY OVER TETON
  PASS AND ALONG THE HIGHER RIDGES. ROADS AND HIGHWAYS WILL BE
  SLICK AND SNOW PACKED AND TRAVEL WILL BE DIFFICULT AT TIMES.
  PLEASE MONITOR JHAVALANCHE.ORG IF YOUR PLANS INCLUDE TRAVEL INTO
  THE BACK COUNTRY.

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.