Hazardous Weather Outlook
Issued by NWS Riverton, WY

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FLUS45 KRIW 210836
HWORIW

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RIVERTON WY
236 AM MDT FRI AUG 21 2015

WYZ001>020-022>030-221100-
YELLOWSTONE NATIONAL PARK-ABSAROKA MOUNTAINS-CODY FOOTHILLS-
NORTH BIG HORN BASIN-SOUTHWEST BIG HORN BASIN-
SOUTHEAST BIG HORN BASIN-OWL CREEK AND BRIDGER MOUNTAINS-
BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST-
NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY-
TETON AND GROS VENTRE MOUNTAINS-JACKSON HOLE-
WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST-
UPPER WIND RIVER BASIN-WIND RIVER BASIN-LANDER FOOTHILLS-
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
NATRONA COUNTY LOWER ELEVATIONS-CASPER MOUNTAIN-STAR VALLEY-
SALT RIVER AND WYOMING RANGES-UPPER GREEN RIVER BASIN FOOTHILLS-
UPPER GREEN RIVER BASIN-SOUTH LINCOLN COUNTY-
ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY-
236 AM MDT FRI AUG 21 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING.

...RED FLAG WARNINGS IN EFFECT FOR MUCH OF THE AREA TODAY AND
TONIGHT AND CONTINUING ACROSS THE SOUTHWEST SATURDAY...

.DAY ONE...TODAY AND TONIGHT

FRIDAY...WARM...WINDY AND VERY DRY CONDITIONS WILL DEVELOP THIS
AFTERNOON AHEAD OF AN APPROACHING COLD FRONT. THIS WILL RESULT IN EXTREME
FIRE WEATHER CONDITIONS ACROSS MUCH OF THE AREA. THE COLD FRONT
WILL BRING STRONG NORTHERLY WINDS AT 25 TO 35 MPH WITH GUSTS NEAR
50 MPH ACROSS THE BIGHORN BASIN AND JOHNSON COUNTY TONIGHT.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

SATURDAY...FIRE DANGER WILL REMAIN EXTREME ACROSS THE SOUTHWEST
WITH GUSTY WEST WIND AND VERY LOW RELATIVE HUMIDITY. SMOKY
CONDITIONS ARE EXPECTED TO WORSEN SATURDAY MORNING BEHIND THE COLD
FRONT...RESULTING IN UNHEALTHY AIR QUALITY...ESPECIALLY TO THOSE
SENSITIVE TO INCREASED PARTICULATE OR SMOKE LEVELS.

WEDNESDAY...ISOLATED TO SCATTERED THUNDERSTORMS.

.SPOTTER INFORMATION STATEMENT...

PLEASE REPORT ANY STRONG WIND GUSTS OVER 50 MPH OR ANY WIND
DAMAGE WITH THE COLD FRONTAL PASSAGE TONIGHT.

$$


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