HAZARDOUS WEATHER OUTLOOK
Issue Date: 530 AM MST THU DEC 24 2009
Expiration: 800 AM CST FRI DEC 25 2009
THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN SOUTH DAKOTA AND
NORTHEASTERN WYOMING.
...WINTER STORM WARNING FOR THE BLACK HILLS AND BEAR LODGE MOUNTAINS
THROUGH SATURDAY MORNING...
...WINTER STORM WARNING FOR SOUTH CENTRAL AND PARTS OF WESTERN
SOUTH DAKOTA THROUGH SATURDAY MORNING...
...WINTER STORM WARNING FOR THE PLAINS OF FAR WESTERN SOUTH DAKOTA
FRIDAY MORNING THROUGH SATURDAY MORNING...
...WINTER WEATHER ADVISORY FOR THE PLAINS OF FAR WESTERN SOUTH DAKOTA
THROUGH THURSDAY NIGHT...
...WINTER WEATHER ADVISORY THROUGH SATURDAY MORNING FOR THE SOUTHERN
BLACK HILLS AND FALL RIVER COUNTY...
.DAY ONE...TODAY AND TONIGHT
A PAIR OF LOW PRESSURE SYSTEMS WILL MERGE OVER THE CENTRAL PLAINS
INTO THE MIDWEST BY LATE THIS EVENING. THERE WILL BE A BRIEF BREAK
IN SNOWFALL EARLY TODAY...BUT SNOW WILL AGAIN INTENSIFY LATER TODAY
INTO TONIGHT OVER WESTERN INTO SOUTH CENTRAL SOUTH DAKOTA...ALONG
WITH OVER THE WYOMING BLACK HILLS AND BEAR LODGE MOUNTAINS. GUSTY
NORTHWEST WINDS WILL BRING AREAS OF BLOWING SNOW REDUCING
VISIBILITIES. ALSO...THE WIND WILL COMBINE WITH THE COLD TEMPERATURES
TO BRING WIND CHILL VALUES OF 15 TO 35 BELOW ZERO.
.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY
GUSTY NORTHWEST WINDS WILL INCREASE EARLY FRIDAY...BRINGING
WIDESPREAD BLOWING SNOW OVER WESTERN AND SOUTH CENTRAL SOUTH DAKOTA
WITH VISIBILITIES OF ONE-QUARTER MILE OR LESS AT TIMES PRODUCING
NEAR-BLIZZARD CONDITIONS. SNOW WILL ALSO CONTINUE TO FALL ACROSS THE
AREA...WITH THE HEAVIEST SNOWS OVER THE BLACK HILLS AND SOUTH
CENTRAL SOUTH DAKOTA. CONDITIONS WILL IMPROVE BY MID-DAY SATURDAY AS
THE LOW PRESSURE SYSTEM STARTS TO MOVE OUT OF THE AREA...THOUGH SOME
BLOWING AND DRIFTING SNOW MAY REMAIN INTO THE EVENING.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY.
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