HAZARDOUS WEATHER OUTLOOK
Issue Date: 408 AM MST WED DEC 9 2009
Expiration: 415 AM MST THU DEC 10 2009
THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN IDAHO.
.DAY ONE...TODAY AND TONIGHT
VERY COLD TEMPERATURES AND SNOW WILL CONTINUE THROUGH TONIGHT.
PORTIONS OF THE CENTRAL MOUNTAINS WILL SEE LESS THAN 1 INCH OF NEW
SNOW. HIGHS ARE FORECAST IN THE ZERO TO 10 ABOVE RANGE IN THE
VALLEYS...AND AS COLD AS 15 BELOW IN THE MOUNTAINS. SUSTAINED
WINDS IN THE 5 TO 15 MPH RANGE WILL PRODUCE WIND CHILLS AS COLD AS
-20 AT MID AND LOWER SLOPE AND DOWN -35 BELOW AT TIMES ON THE
HIGHER PEAKS. FOR PORTIONS OF THE SNAKE PLAIN AND SOUTHERN/EASTERN
MOUNTAINS...LIGHT SNOW WILL ALSO CONTINUE RANGING FROM A TRACE IN
THE VALLEYS TO NEAR 4 INCHES ON THE HIGHER PEAKS THROUGH TONIGHT.
WINDS THIS AFTERNOON WILL INCREASE TO THE 10-20 MPH RANGE
SUSTAINED. THE STRONGEST WINDS WILL BE ACROSS THE SNAKE PLAIN AND
SOUTHERN/SOUTHEASTERN MOUNTAIN RANGES. BLOWING SNOW AND REDUCED
VISIBILITIES WILL BE LIKELY IN SOME AREAS. WINDS CHILLS OF ZERO TO
-20 CAN BE EXPECTED. A WINTER WEATHER ADVISORY HAS BEEN ISSUED
FROM LATE MORNING UNTIL EARLY THIS EVENING. PLEASE SEE THE LATEST
WINTER STORM PRODUCT - WSWPIH - FOR MORE INFORMATION.
BY TONIGHT...SNOW WILL BE CONFINED TO THE EASTERN MOUNTAINS.
TEMPERATURES WILL DROP ONCE AGAIN TO BELOW ZERO...WITH THE COLDEST
SPOTS DROPPING TO NEAR -30. STRATUS IS ALSO FORECAST ACROSS THE
NORTHERN AND WESTERN PORTIONS OF THE SNAKE PLAIN AND UPPER SNAKE
HIGHLANDS.
.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY
TEMPERATURES WILL SLOWLY MODERATE THURSDAY AND FRIDAY...WITH SOME
VERY LIGHT SNOW POSSIBLE NEAR THE DIVIDE. STRATUS IS ALSO EXPECTED
ACROSS THE UPPER SNAKE PLAIN AND UPPER SNAKE HIGHLANDS THURSDAY
NIGHT AND FRIDAY MORNING.
THE WEEKEND SIGNALS A RETURN TO UNSETTLED WEATHER AND WARMING
TEMPERATURES. THE FLOW WILL BE FROM THE PACIFIC AND WILL KEEP A
CHANCE OF MAINLY SNOW IN THE FORECAST. IT IS POSSIBLE DURING THE
AFTERNOON HOURS THAT THE LOWER VALLEYS COULD SEE A MIX OF RAIN AND
SNOW WITH HIGHS TRYING TO GET ABOVE FREEZING. THE MOUNTAINS WILL
SEE THE BRUNT OF THE MOISTURE. SNOW THAT FALLS UNDER THIS PATTERN
WILL ALSO BE WETTER IN NATURE. THIS TREND WILL CONTINUE INTO
EARLY NEXT WEEK.
.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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