Special Weather Statement
Issued by NWS Cheyenne, WY

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531
WWUS85 KCYS 172208
SPSCYS

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
408 PM MDT SUN MAY 17 2015

NEZ002-003-019-095-096-WYZ101>119-181300-
DAWES-BOX BUTTE-SCOTTS BLUFF-NORTH SIOUX-SOUTH SIOUX-
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-
INCLUDING THE CITIES OF...CHADRON...ALLIANCE...SCOTTSBLUFF...
GERING...HARRISON...AGATE...DOUGLAS...GLENROCK...LUSK...
MUDDY GAP...MEDICINE BOW...BORDEAUX...GLENDO...WHEATLAND...
CHUGWATER...GUERNSEY...TORRINGTON...RAWLINS...SINCLAIR...HANNA...
ARLINGTON...ELK MOUNTAIN...BAGGS...DIXON...SARATOGA...
ENCAMPMENT...RIVERSIDE...CENTENNIAL...ALBANY...WOODS LANDING...
LARAMIE...VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK...
HARRIMAN...WHITAKER...CHEYENNE...BURNS...CARPENTER...ALBIN...
PINE BLUFFS
408 PM MDT SUN MAY 17 2015

...WIDESPREAD ACCUMULATING SNOW POSSIBLE ON TUESDAY AND TUESDAY
NIGHT...

A STRONG STORM SYSTEM IS EXPECTED TO LIFT NORTHEAST INTO THE
CENTRAL ROCKIES BY EARLY TUESDAY. AS THIS OCCURS...A STRONG HIGH
PRESSURE SYSTEM OVER THE DAKOTAS WILL ALLOW MOIST UPSLOPE FLOW TO
DEVELOP ALONG AND EAST OF THE LARAMIE RANGE. WIDESPREAD MODERATE
PRECIPITATION IS EXPECTED ACROSS A LARGE PART OF THE AREA THROUGH
THE DAY ON TUESDAY. WITH CANADIAN HIGH PRESSURE TO OUR NORTH...A
CONSIDERABLE AMOUNT OF COLD AIR WILL FILTER INTO THE AREA. CURRENT
INDICATIONS ARE THAT SNOW LEVELS COULD LOWER TO BETWEEN 5000 AND
6000 FEET BY BY MID TUESDAY AFTERNOON. SEVERAL INCHES OF SNOW MAY
FALL. THE HEAVIEST PRECIPITATION IS EXPECTED DURING THE DAY...SO
ANY ACCUMULATIONS WILL MOST LIKELY BE ON GRASSY AND ELEVATED
SURFACES WITH MINIMAL IMPACTS. AT THIS TIME...THE GREATEST CONCERN
IS ALONG INTERSTATE 80 BETWEEN LARAMIE AND CHEYENNE WHICH COULD
BECOME SLICK AND SNOW COVERED ALONG WITH LOW VISIBILITY IN FALLING
AND BLOWING SNOW. THOSE WITH TRAVEL PLANS ACROSS THE AREA SHOULD
CLOSELY MONITOR THE FORECAST OVER THE NEXT FEW DAYS.

$$

HAMMER



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