HAZARDOUS WEATHER OUTLOOK
Issue Date: 357 AM MST SUN DEC 06 2009
Expiration: 700 AM MST MON DEC 07 2009 Expires:200912071400;;
FLUS45 KPIH 061057
HWOPIH
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE POCATELLO ID
356 AM MST SUN DEC 6 2009
IDZ017>025-031-032-071400-
EASTERN MAGIC VALLEY-SAWTOOTH MOUNTAINS-UPPER SNAKE HIGHLANDS-
UPPER SNAKE RIVER PLAIN-LOWER SNAKE RIVER PLAIN-
SOUTH CENTRAL HIGHLANDS-CARIBOU HIGHLANDS-
CACHE VALLEY/IDAHO PORTION-WASATCH MOUNTAINS/IDAHO PORTION-
BIG AND LITTLE WOOD RIVER REGION-LOST RIVER/PAHSIMEROI-
356 AM MST SUN DEC 6 2009
THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN IDAHO.
.DAY ONE...TODAY AND TONIGHT
EXTREME COLD AND MODERATE WIND WILL COMBINE TONIGHT TO PRODUCE
DANGEROUS EFFECTIVE CHILL TEMPERATURES COLDER THAN TWENTY BELOW
ZERO. SEE THE LATEST URGENT WINTER WEATHER MESSAGE FOR DETAILS.
.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY
DANGEROUS EFFECTIVE CHILL TEMPERATURES WILL CONTINUE THROUGH
MONDAY MORNING. SEE THE LATEST URGENT WINTER WEATHER MESSAGE FOR
DETAILS.
.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.
$$
WIND CHILL WATCH
Issue Date: 321 AM MST SUN DEC 06 2009
Expiration: 1200 PM MST MON DEC 07 2009 ...DANGEROUS WIND CHILL TEMPERATURES MAY DEVELOP TONIGHT THROUGH
MONDAY MORNING...
.PROLONGED NORTHERLY FLOW MAY BRING A HAZARDOUS COMBINATION OF
WIND AND BITTER COLD...PRODUCING EFFECTIVE CHILL TEMPERATURES COLDER
THAN TWENTY DEGREES BELOW ZERO. WIND WILL DECREASE AND
TEMPERATURES WILL WARM DURING THE DAY MONDAY TO ALLEVIATE THE HAZARD.
IDZ017-019>021-023-025-031-032-062200-
/O.NEW.KPIH.WC.A.0001.091207T0000Z-091207T1900Z/
EASTERN MAGIC VALLEY-UPPER SNAKE HIGHLANDS-
UPPER SNAKE RIVER PLAIN-LOWER SNAKE RIVER PLAIN-CARIBOU HIGHLANDS-
WASATCH MOUNTAINS/IDAHO PORTION-BIG AND LITTLE WOOD RIVER REGION-
LOST RIVER/PAHSIMEROI-
INCLUDING THE CITIES OF...BURLEY...RUPERT...SHOSHONE...CAREY...
DRIGGS...DUBOIS...ISLAND PARK...ST. ANTHONY...IDAHO FALLS...
REXBURG...RIGBY...POCATELLO...BLACKFOOT...FORT HALL...
AMERICAN FALLS...DOWNEY...LAVA HOT SPRINGS...SODA SPRINGS...
WAYAN...MONTPELIER...GEORGETOWN...PARIS...HAILEY...KETCHUM...
BELLEVUE...ARCO...CHALLIS...MACKAY
321 AM MST SUN DEC 6 2009
...WIND CHILL WATCH IN EFFECT FROM THIS AFTERNOON THROUGH MONDAY
MORNING...
THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A WIND CHILL
WATCH...WHICH IS IN EFFECT FROM THIS AFTERNOON THROUGH MONDAY
MORNING.
PROLONGED NORTHERLY FLOW THAT BEGAN YESTERDAY WILL BRING ARCTIC
AIR INTO CENTRAL AND EASTERN IDAHO. THE NORTH WIND MAY BE STRONG
ENOUGH TO COMBINE WITH THIS COLD AIR AND PRODUCE EFFECTIVE CHILL
TEMPERATURES COLDER THAN TWENTY DEGREES BELOW ZERO.
EFFECTIVE CHILL TEMPERATURES COLDER THAN TWENTY DEGREES BELOW
ZERO CAN FREEZE EXPOSED FLESH WITHIN 30 MINUTES...RESULTING IN
SEVERE FROSTBITE.
AREAS OF WIDESPREAD...PROLONGED WIND CHILL COLDER THAN TWENTY
BELOW ZERO INCLUDE THE UPPER SNAKE HIGHLANDS...THE CARIBOU
HIGHLANDS...AND THE UPPER SNAKE RIVER PLAIN. THE BEAR LAKE
BASIN...WOOD RIVER VALLEY...EASTERN MAGIC VALLEY...AND SOUTHERN
SNAKE RIVER PLAIN WILL HAVE ONLY PORTIONS OF RESPECTIVE AREAS
EXPERIENCE WIND CHILL OF THAT MAGNITUDE.
TEMPERATURES WILL WARM AND WINDS SLACKEN MONDAY DURING THE LATE
MORNING...WITH MUCH SAFER CONDITIONS DEVELOPING BY NOON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A WIND CHILL WATCH MEANS THE THERE IS THE POTENTIAL FOR A
COMBINATION OF VERY COLD AIR AND WIND TO CREATE DANGEROUSLY LOW
WIND CHILL VALUES. MONITOR THE LATEST FORECASTS AND WARNINGS FOR
UPDATES ON THIS SITUATION.
$$
MESSICK
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