Special Weather Statement
Issued by NWS Riverton, WY

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WWUS85 KRIW 211842
SPSRIW

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RIVERTON WY
1242 PM MDT SAT MAY 21 2016

WYZ012>016-023>027-212200-
TETON AND GROS VENTRE MOUNTAINS-JACKSON HOLE-
WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST-
UPPER WIND RIVER BASIN-STAR VALLEY-SALT RIVER AND WYOMING RANGES-
UPPER GREEN RIVER BASIN FOOTHILLS-UPPER GREEN RIVER BASIN-
SOUTH LINCOLN COUNTY-
INCLUDING THE CITIES OF...JACKSON...DUBOIS...AFTON...ALPINE...
STAR VALLEY RANCH...THAYNE...PINEDALE...LA BARGE...BIG PINEY...
FARSON...KEMMERER...COKEVILLE
1242 PM MDT SAT MAY 21 2016

...COLD FRONT WITH RAIN AND SNOW SHOWERS AND ISOLATED
THUNDERSTORMS TODAY...

A VIGOROUS COLD FRONT WILL BRING GUSTY WINDS...BOTH RAIN AND SNOW SHOWERS
AND ISOLATED THUNDERSTORMS WITH IT TODAY. THE MAIN THREATS WILL BE
WINDS OF 15 TO 30 MPH WITH HIGHER GUSTS ALONG WITH BRIEF HEAVY
RAIN...SMALL HAIL...PERIODS OF SNOW ABOVE 8000 FEET AND OCCASIONAL
LIGHTNING. SHOWERS AND STORMS WILL MOVE OUT OF THE REGION
BEGINNING LATE THIS AFTERNOON AND THROUGH THE EVENING. RAIN MIXED
WITH SNOW OR ALL SNOW WILL BE POSSIBLE BY EARLY SUNDAY MORNING...
MAINLY ACROSS THE UPPER GREEN RIVER BASIN.

$$

WYZ019-020-022-028>030-212200-
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
NATRONA COUNTY LOWER ELEVATIONS-CASPER MOUNTAIN-
ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY-
INCLUDING THE CITIES OF...JEFFREY CITY...CASPER...ROCK SPRINGS...
GREEN RIVER...WAMSUTTER
1242 PM MDT SAT MAY 21 2016

...VERY GUSTY WINDS AND POSSIBLE THUNDERSTORMS AHEAD OF COLD FRONT
THIS AFTERNOON...

VERY GUSTY WINDS OF 20 TO 30 MPH WITH GUSTS 40 TO 50 MPH WILL BE
POSSIBLE THIS AFTERNOON ALONG WITH CHANCES FOR A FEW SHOWERS AND
ISOLATED STRONG THUNDERSTORMS LATER THIS AFTERNOON AND EVENING.
THE MAIN THREAT OTHER THAN THE WIND WILL BE BRIEF HEAVY
RAIN...SMALL HAIL AND FREQUENT LIGHTNING. WIND...SHOWERS AND
THUNDERSTORMS SHOULD DECREASE LATER THIS EVENING.


$$

WYZ003>007-017-018-212200-
CODY FOOTHILLS-NORTH BIG HORN BASIN-SOUTHWEST BIG HORN BASIN-
SOUTHEAST BIG HORN BASIN-OWL CREEK AND BRIDGER MOUNTAINS-
WIND RIVER BASIN-LANDER FOOTHILLS-
INCLUDING THE CITIES OF...CODY...MEETEETSE...THERMOPOLIS...
WORLAND...RIVERTON...SHOSHONI...LANDER
1242 PM MDT SAT MAY 21 2016

...VERY GUSTY WINDS ACROSS THE CENTRAL BASINS ALONG WITH POSSIBLE
THUNDERSTORMS AHEAD OF COLD FRONT THIS AFTERNOON...

VERY GUSTY WINDS OF 20 TO 30 MPH WITH GUSTS 40 TO 50 MPH WILL BE
POSSIBLE THIS AFTERNOON...ESPECIALLY ACROSS THE WIND RIVER BASIN
AND SOUTHERN BIGHORN BASIN. CHANCES FOR A FEW SHOWERS AND
ISOLATED STRONG THUNDERSTORMS WILL ARRIVE LATER THIS AFTERNOON
AND EVENING WITH THE MAIN THREAT BEING ERRATIC STRONG GUSTY WIND
NEAR THUNDERSTORMS...BRIEF HEAVY RAIN...SMALL HAIL AND FREQUENT
LIGHTNING. WIND...SHOWERS AND THUNDERSTORMS SHOULD DECREASE LATER
THIS EVENING.

$$

WYZ008>011-212200-
BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST-
NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY-
INCLUDING THE CITIES OF...BUFFALO...KAYCEE
1242 PM MDT SAT MAY 21 2016

...ISOLATED STRONG TO SEVERE THUNDERSTORMS POSSIBLE LATER THIS
AFTERNOON AND EVENING...

LATE THIS AFTERNOON AND EVENING...A FEW STRONG TO NEAR SEVERE
THUNDERSTORMS WILL BE POSSIBLE...AFTER 4 PM...THEN DECREASING BY
9 PM. THE MAIN THREAT FROM THESE STORMS WILL BE WIND GUSTS OF 45
MPH OR HIGHER...HAIL BETWEEN A HALF INCH AND ONE INCH IN
DIAMETER...ALONG WITH BRIEF HEAVY RAIN AND FREQUENT LIGHTNING.

$$

WYZ001-002-212200-
YELLOWSTONE NATIONAL PARK-ABSAROKA MOUNTAINS-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL
1242 PM MDT SAT MAY 21 2016

...COLD FRONT WITH RAIN AND SNOW SHOWERS AND ISOLATED
THUNDERSTORMS TODAY...

A VIGOROUS COLD FRONT WILL BRING GUSTY WINDS...BOTH RAIN AND SNOW SHOWERS
AND ISOLATED THUNDERSTORMS WITH IT TODAY. THE MAIN THREATS WILL BE
WINDS OF 15 TO 30 MPH WITH HIGHER GUSTS ALONG WITH BRIEF HEAVY
RAIN...SMALL HAIL...PERIODS OF HEAVY SNOW ABOVE 8000 FEET AND
OCCASIONAL LIGHTNING. HEAVY SNOW HAS ALREADY CLOSED A COUPLE OF
ROADS IN YELLOWSTONE THIS AFTERNOON. SHOWERS AND STORMS WILL MOVE
OUT OF THE REGION BEGINNING LATE THIS AFTERNOON AND THROUGH THE
EVENING.

$$


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