Special Weather Statement
Issued by NWS Riverton, WY

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SPSRIW

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RIVERTON WY
257 AM MDT MON JUL 27 2015

WYZ001-002-012-013-023>025-272300-
YELLOWSTONE NATIONAL PARK-ABSAROKA MOUNTAINS-
TETON AND GROS VENTRE MOUNTAINS-JACKSON HOLE-STAR VALLEY-
SALT RIVER AND WYOMING RANGES-UPPER GREEN RIVER BASIN FOOTHILLS-
INCLUDING THE CITIES OF...CANYON...LAKE...MADISON...MAMMOTH...
OLD FAITHFUL...TOWER JUNCTION...PAHASKA...JACKSON...AFTON...
ALPINE...FOSSIL BUTTE NATIONAL MON...PINEDALE
257 AM MDT MON JUL 27 2015

A COLD FRONT WILL MOVE THROUGH TODAY WITH SHOWERS AND
THUNDERSTORMS EXPECTED FOR MUCH OF DAY AND INTO THE EVENING. SOME
OF THE STORMS THIS AFTERNOON COULD PRODUCE HAIL UP TO THE SIZE OF
QUARTERS AND HEAVY DOWNPOURS. IT WILL BE VERY COLD BEHIND THE
FRONT WITH SNOW POSSIBLE ABOVE 9000FT THIS EVENING....INCLUDING
YELLOWSTONE. CLEARING IS EXPECTED AFTER MIDNIGHT WITH FREEZING
TEMPERATURES POSSIBLE ACROSS MUCH OF THE AREA EARLY TUESDAY
MORNING.

$$

WYZ005-007-014>016-019-026>030-272300-
SOUTHWEST BIG HORN BASIN-OWL CREEK AND BRIDGER MOUNTAINS-
WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST-
UPPER WIND RIVER BASIN-GREEN MOUNTAINS AND RATTLESNAKE RANGE-
UPPER GREEN RIVER BASIN-SOUTH LINCOLN COUNTY-
ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY-
INCLUDING THE CITIES OF...THERMOPOLIS...ATLANTIC CITY...DUBOIS...
JEFFREY CITY...BAIROIL...MARBLETON...LA BARGE...BIG PINEY...
EDEN...FARSON...KEMMERER...DIAMONDVILLE...ROCK SPRINGS...
GREEN RIVER...WAMSUTTER...SUPERIOR
257 AM MDT MON JUL 27 2015

..OUTDOOR BURNING STRONGLY DISCOURAGED TODAY...

HOT...DRY...WINDY AND UNSTABLE CONDITIONS AHEAD OF AN APPROACHING
STORM SYSTEM WILL CREATE AN UNFAVORABLE BURNING ENVIRONMENT THIS
AFTERNOON AS ANY FIRES THAT START COULD QUICKLY BECOME
UNCONTROLLABLE.

PLEASE BE EXTRA CAUTIOUS WITH FIRE THIS AFTERNOON. BE MINDFUL OF
WHAT COULD CAUSE A SPARK...NOT ALL SOURCES ARE OBVIOUS...FOR
INSTANCE...DO NOT PARK A TRUCK OR ATV IN TALL GRASS AND BE SURE
THAT YOU SECURE ANY CHAINS INVOLVED IN TOWING A VEHICLE. SOME OF
THE MORE OBVIOUS SOURCES INCLUDE ABANDONED CAMPFIRES...
WELDING...AND AGRICULTURAL BURNING.

FOR MORE INFORMATION AND RESOURCES ON OUTDOOR FIRE SAFETY...VISIT
WEATHER.GOV/RIVERTON/AGBURNING

$$

WYZ003-004-006-008>011-272300-
CODY FOOTHILLS-NORTH BIG HORN BASIN-SOUTHEAST BIG HORN BASIN-
BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST-
NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY-
INCLUDING THE CITIES OF...CODY...POWELL...LOVELL...GREYBULL...
WORLAND...BUFFALO...KAYCEE
257 AM MDT MON JUL 27 2015

SEVERE THUNDERSTORMS WILL BE POSSIBLE THIS AFTERNOON AND EVENING
AS A COLD FRONT SHIFTS SOUTH. ALL HAZARDS WILL BE POSSIBLE
INCLUDING LARGE HAIL AND A TORNADO...DAMAGING DOWNBURST WINDS WILL
BE THE MOST LIKELY THREAT. AHEAD OF THE FRONT IT WILL BE VERY DRY
WITH GUSTY SOUTHWEST WINDS IN EXCESS OF 45 MPH AT TIMES...
RESULTING IN VERY HIGH FIRE DANGER...ESPECIALLY IN JOHNSON COUNTY.

$$



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