HAZARDOUS WEATHER OUTLOOK
Issue Date: 502 AM MST SUN DEC 20 2009
Expiration: 515 AM MST MON DEC 21 2009
THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN IDAHO.
.DAY ONE...TODAY AND TONIGHT
A WARM FRONT FROM A PACIFIC STORM SYSTEM IS EXPECTED TO MOVE INTO
THE CENTRAL MOUNTAINS LATE TONIGHT...BRINGING A GOOD CHANCE FOR
SNOWFALL TO THE WESTERN CENTRAL MOUNTAINS.
.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY
MONDAY THE WARM FRONTAL BOUNDARY OF A PACIFIC STORM WILL MOVE
ACROSS THE AREA. IT WILL MAINLY IMPACT THE CENTRAL MOUNTAINS WITH
2 TO 5 INCHES OF SNOW. HOWEVER...ACCUMULATIONS OF 1 TO 4 INCHES OF
SNOW ACROSS THE AREA IN HIGHER TERRAIN WILL BE POSSIBLE.
TUESDAY EXPECT COLD FRONTAL PASSAGE OF A PACIFIC STORM THROUGHOUT
SE IDAHO. SNOWFALL OF 4 TO 8 INCHES IN HIGHER TERRAIN IS EXPECTED
ACROSS THE CENTRAL MOUNTAINS...UPPER SNAKE HIGHLANDS AND THE
SOUTHERN HIGHLANDS WITH 1 TO 3 INCHES OF SNOW POSSIBLE IN THE
SNAKE RIVER PLAIN AND VALLEYS. LATE TUESDAY AFTERNOON INTO EARLY
EVENING HIGHER WINDS OF 15 TO 20 MPH SUSTAINED WITH GUST OF 30 TO
35 MPH WILL BE LIKELY.
NO OTHER SIGNIFICANT WEATHER IS EXPECTED THROUGHOUT THE REMAINDER
OF THE PERIOD.
.SPOTTER INFORMATION STATEMENT...
WE ASK TRAINED SPOTTERS AND CITIZENS TO REPORT SIGNIFICANT
WEATHER CONDITIONS WHEN IT IS SAFE TO DO SO. THESE CONDITIONS MAY
INCLUDE HAIL...TORNADOES...STRONG WIND...DUST STORMS...SNOWFALL...
EXTREME COLD TEMPERATURES...FREEZING RAIN OR HEAVY RAIN...DENSE
FOG...AND FLOODING OR ICE JAMS. INFORMATION ABOUT THESE HAZARDOUS
CONDITIONS SHOULD BE CALLED INTO YOUR NATIONAL WEATHER SERVICE
OFFICE IN POCATELLO USING THE 1-800 SEVERE WEATHER HOTLINE...OR
208-233-0834.
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