Jackson Hole Winter Storm Watch – February 20, 2012  

by Than Volk | Jackson Hole Weather, Weather | February 20th, 2012 | 1499 Views | Comments

URGENT – WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
1236 PM MST MON FEB 20 2012

…MOIST STRONG WEST PACIFIC FLOW WILL BRING AND STRONG WINDS
TO THE WESTERN MOUNTAINS TUESDAY THROUGH WEDNESDAY NIGHT…

.MOIST STRONG WEST PACIFIC FLOW WILL BRING SNOW AND STRONG WINDS
TO THE WESTERN MOUNTAINS TUESDAY THROUGH WEDNESDAY NIGHT. SNOW WILL
INCREASE LATER TONIGHT WITH PERIODS OF MODERATE TO HEAVY SNOW BY
EARLY MORNING. WINDS WILL INCREASE BECOMING QUITE STRONG ON THE
PASSES AND UPPER MOUNTAIN RIDGES AS THE INTENSIFIES THROUGH
TUESDAY NIGHT AND WEDNESDAY. THE SNOW SHOULD TAPER OFF THROUGH
WEDNESDAY NIGHT BUT VERY STRONG WINDS ARE EXPECTED TO KEEP
SIGNIFICANT BLOWING AND DRIFTING SNOW GOING THROUGH THE NIGHT.

UP TO THREE FEET MAY FALL IN THE TETONS WITH OTHER AREAS
SEEING ONE TO TWO FEET. SOME OF THE HIGHER MOUNTAIN AREAS MAY SEE
WIND GUSTS OVER 90 MPH WEDNESDAY AS THE PEAK WINDS OCCUR.

THE STORM IS EXPECTED TO BE WARM WITH SNOW CHANGING TO OR MIXING
WITH RAIN BELOW 8000 FEET TUESDAY AND AGAIN ON WEDNESDAY. THIS
IS EXPECTED TO LIMIT SNOW ACCUMULATIONS IN THE LOWER MOUNTAINS AND
VALLEYS.

WYZ012-211000-
/O.NEW.KRIW.WS.A.0003.120221T1200Z-120223T1200Z/
TETON AND GROS VENTRE MOUNTAINS-
1236 PM MST MON FEB 20 2012

IN EFFECT FROM LATE TONIGHT THROUGH LATE
WEDNESDAY NIGHT…

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER
STORM WATCH…WHICH IS IN EFFECT FROM LATE TONIGHT THROUGH LATE
WEDNESDAY NIGHT.

* SUMMARY AND TIMING…SNOW IS EXPECTED TO INCREASE THROUGH THE
NIGHT WITH PERIODS OF MODERATE TO HEAVY SNOW BY EARLY MORNING.
WINDS WILL INCREASE SIGNIFICANTLY LATE TUESDAY NIGHT AND
WEDNESDAY LASTING THROUGH WEDNESDAY NIGHT AS THE SNOW TAPERS OFF
THROUGH THE NIGHT.

* SNOW ACCUMULATIONS… SNOWFALL OF TWO TO THREE FEET IS EXPECTED.

* WIND AND VISIBILITY…WEST WINDS WILL START OUT AROUND 20 TO 30
MPH…THEN INCREASE TO 40 TO 50 MPH WITH GUSTS AS HIGH AS 90 MPH
ON THE PASSES AND HIGHER PEAKS ON WEDNESDAY. VISIBILITY WILL BE
NEAR ZERO AT TIMES IN SNOW AND BLOWING SNOW.

* IMPACTS…AS THE SNOW PILES UP AND THE WINDS INCREASE…TRAVEL
AND OTHER OUTDOOR ACTIVITY MAY BECOME HAZARDOUS. TRAVELERS
SHOULD BE PREPARED FOR ROAD CLOSURES.

Related Posts:

  1. Jackson Hole Winter Storm Watch – February 28, 2012
  2. Jackson Hole Winter Storm Watch – January 16, 2012
  3. Jackson Hole Winter Storm Warning – December 9, 2010
  4. Jackson Hole Winter Storm Warning – December 4, 2012
  5. Jackson Hole Winter Storm Watch – November 29, 2012
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