Hazardous Weather Outlook
Issued by NWS Cheyenne, WY

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FLUS45 KCYS 220145
HWOCYS

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHEYENNE WY
645 PM MST FRI NOV 21 2014

WYZ101>119-230145-
CONVERSE COUNTY LOWER ELEVATIONS-NIOBRARA COUNTY-
NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS-
SHIRLEY BASIN-CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
EAST PLATTE COUNTY-GOSHEN COUNTY-CENTRAL CARBON COUNTY-
NORTH SNOWY RANGE FOOTHILLS-SOUTHWEST CARBON COUNTY-
SIERRA MADRE RANGE-UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE-
LARAMIE VALLEY-SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS-
CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY-
645 PM MST FRI NOV 21 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST CENTRAL
WYOMING...SOUTH CENTRAL WYOMING AND SOUTHEAST WYOMING.

.DAY ONE...TONIGHT

A STRONG PACIFIC STORM SYSTEM WILL MOVE TOWARD THE CENTRAL ROCKIES
LATE TONIGHT. THIS WILL STRENGTHEN THE SURFACE PRESSURE GRADIENT
AND INCREASE THE POTENTIAL FOR VERY STRONG WEST TO SOUTHWEST WINDS
ACROSS SOUTHEAST WYOMING OVERNIGHT. HIGH WINDS WILL INITIALLY DEVELOP
FOR THE ARLINGTON AND BORDEAUX AREAS WITH GUSTS OF 60 TO 70 MPH. HIGH
WIND WARNINGS ARE IN EFFECT FOR THESE AREAS BEGINNING AT 2 AM SATURDAY.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

THE VERY STRONG WINDS WILL THEN SPREAD INTO THE LARAMIE RANGE AND
ADJACENT FOOTHILLS AFTER SUNRISE AND EVENTUALLY INTO THE LOWER
ELEVATIONS DURING THE AFTERNOON. WINDS WILL REMAIN STRONG WELL
INTO THE EVENING HOURS ON SATURDAY...AND MAY EVEN INCREASE AGAIN
FOR A SHORT TIME ON SATURDAY NIGHT AS A STRONG COLD FRONT APPROACHES
FROM THE NORTHWEST. HIGH WIND WATCHES AND WARNINGS ARE IN EFFECT
FOR MUCH OF SOUTHEAST WYOMING SATURDAY AND SATURDAY NIGHT.

A PROLONGED PERIOD OF ACCUMULATING SNOW WILL OCCUR FOR THE SNOWY
AND SIERRA MADRE MOUNTAINS SATURDAY THROUGH WEDNESDAY. SNOW COULD
BE MODERATE TO HEAVY AT TIMES...WITH THE HEAVIEST SNOWFALL EXPECTED
SATURDAY AFTERNOON THROUGH MONDAY. IN ADDITION...GUSTY WINDS COULD
PRODUCE BLOWING SNOW CONDITIONS WITH VERY LOW VISIBILITIES AND
DRIFTING SNOW. A WINTER STORM WATCH IS IN EFFECT FOR THE COMBINATION
OF MODERATE TO HEAVY SNOW AND GUSTY WINDS SATURDAY THROUGH MONDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE REQUIRED TONIGHT...HOWEVER REPORTS
OF HIGH WINDS WILL BE APPRECIATED.

$$

NEZ002-003-019>021-054-055-095-096-230145-
DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
NORTH SIOUX-SOUTH SIOUX-
645 PM MST FRI NOV 21 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN
NEBRASKA.

.DAY ONE...TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

WINDY CONDITIONS ARE FORECAST FOR SUNDAY THROUGH WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE REQUIRED TONIGHT.

$$

JAMSKI/HAMMER


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