Hazardous Weather Outlook
Issued by NWS Riverton, WY

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FLUS45 KRIW 190840
HWORIW

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RIVERTON WY
240 AM MDT THU MAY 19 2016

WYZ001>020-022>030-201200-
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-
240 AM MDT THU MAY 19 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING.

.DAY ONE...TODAY AND TONIGHT

WARM TEMPERATURES THROUGH SATURDAY...WILL RESULT IN SIGNIFICANT
MOUNTAIN SNOWMELT. THIS WILL CAUSE RISES OF AREA CREEKS AND
RIVERS...WITH THEM CRESTING IN THE SUNDAY AND MONDAY TIMEFRAME.
THE LOCATIONS OF GREATEST CONCERN ARE CREEKS AND STREAMS IN THE
BIG WIND...AND LITTLE WIND RIVER BASINS.

OTHERWISE...ISOLATED TO NUMEROUS THUNDERSTORMS...WITH THE BEST
COVERAGE WEST OF THE DIVIDE. A FEW OF THESE THUNDERSTORMS COULD
BE STRONG TO MARGINALLY SEVERE AND PRODUCE LOCALIZED FLASH
FLOODING. MODERATE TO OCCASIONALLY HEAVY RAIN TONIGHT WEST OF THE
DIVIDE...WITH LOCALIZED MUD OR ROCK SLIDES POSSIBLE.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

FRIDAY AND SATURDAY...ISOLATED TO WIDELY SCATTERED THUNDERSTORMS
MAINLY WEST OF THE DIVIDE AND ACROSS EASTERN JOHNSON AND NATRONA
COUNTIES. STRONG GUSTY WINDS POSSIBLE WITH SOME OF THIS ACTIVITY.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ENCOURAGED TO REPORT ANY SIGNIFICANT WEATHER...INCLUDING
HAIL...STRONG WINDS...HEAVY RAINFALL OR OBSERVED FLOODING. THANK
YOU.

$$



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