Special Weather Statement
Issued by NWS Riverton, WY

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WWUS85 KRIW 050048
SPSRIW

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RIVERTON WY
648 PM MDT FRI SEP 4 2015

WYZ010-011-050400-
NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY-
INCLUDING THE CITIES OF...BUFFALO...KAYCEE
648 PM MDT FRI SEP 4 2015

THROUGH 10 PM...SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS WILL
CONTINUE TO MOVE NORTHEAST ACROSS JOHNSON COUNTY. THE MAIN HAZARD
WITH THESE SHOWERS AND THUNDERSTORMS WILL BE OUTFLOW WIND GUSTS OF
40 TO 50 MPH. ALSO EXPECT OCCASIONAL CLOUD TO GROUND LIGHTNING.
THIS ACTIVITY SHOULD CONTINUE THROUGH MOST OF THE EVENING BEFORE
DISSIPATING BETWEEN 10 PM AND MIDNIGHT.

$$

WYZ015-017>019-050400-
WIND RIVER MOUNTAINS EAST-WIND RIVER BASIN-LANDER FOOTHILLS-
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
INCLUDING THE CITIES OF...ATLANTIC CITY...RIVERTON...LANDER...
JEFFREY CITY...BAIROIL
648 PM MDT FRI SEP 4 2015

THROUGH 10 PM...ISOLATED SHOWERS AND THUNDERSTORMS WILL CONTINUE
TO MOVE NORTHEAST OFF THE WIND RIVER RANGE INTO THE WIND RIVER
BASIN. THE MAIN HAZARD WITH THESE SHOWERS AND THUNDERSTORMS WILL
BE STRONG OUTFLOW WIND GUSTS OF 40 TO 50 MPH. ALSO EXPECT
OCCASIONAL CLOUD TO GROUND LIGHTNING. THIS ACTIVITY SHOULD
CONTINUE THROUGH MOST OF THE EVENING BEFORE DISSIPATING BETWEEN 10
PM AND MIDNIGHT. BOATERS ON OPEN WATERS SHOULD BE ESPECIALLY
PREPARED FOR SUDDEN...STRONG ERRATIC WIND GUSTS THAT MAY TOPPLE
SMALL CRAFT. THESE WIND GUSTS MAY OCCUR SEVERAL MILES AWAY FROM
THE PARENT STORM.

$$

WYZ014-025-026-028-029-050400-
WIND RIVER MOUNTAINS WEST-UPPER GREEN RIVER BASIN FOOTHILLS-
UPPER GREEN RIVER BASIN-ROCK SPRINGS AND GREEN RIVER-
FLAMING GORGE-
INCLUDING THE CITIES OF...PINEDALE...MARBLETON...LA BARGE...
BIG PINEY...EDEN...FARSON...ROCK SPRINGS...GREEN RIVER
648 PM MDT FRI SEP 4 2015

THROUGH 10 PM...SHOWERS AND THUNDERSTORMS WILL CONTINUE TO
DEVELOP OFF THE UINTA RANGE AND MOVE NORTH TO NORTHEAST ACROSS
SOUTHWEST WYOMING. THE MAIN HAZARD WITH THESE SHOWERS AND
THUNDERSTORMS WILL BE STRONG OUTFLOW WIND GUSTS OF 40 TO 50 MPH.
ALSO EXPECT OCCASIONAL CLOUD TO GROUND LIGHTNING. THIS ACTIVITY
SHOULD CONTINUE THROUGH MOST OF THE EVENING BEFORE DISSIPATING
BETWEEN 10 PM AND MIDNIGHT. BOATERS ON OPEN WATERS SHOULD BE
ESPECIALLY PREPARED FOR SUDDEN...STRONG ERRATIC WIND GUSTS THAT
MAY TOPPLE SMALL CRAFT. THESE WIND GUSTS MAY OCCUR SEVERAL MILES
AWAY FROM THE PARENT STORM.

$$

WYZ001-012-013-023-024-050400-
YELLOWSTONE NATIONAL PARK-TETON AND GROS VENTRE MOUNTAINS-
JACKSON HOLE-STAR VALLEY-SALT RIVER AND WYOMING RANGES-
INCLUDING THE CITIES OF...CANYON...LAKE...MADISON...MAMMOTH...
OLD FAITHFUL...TOWER JUNCTION...JACKSON...AFTON...ALPINE...
FOSSIL BUTTE NATIONAL MON
648 PM MDT FRI SEP 4 2015

THROUGH 10 PM...SHOWERS AND THUNDERSTORMS WILL CONTINUE TO DEVELOP
AND MOVE NORTH ACROSS WESTERN WYOMING THE MAIN HAZARD WITH THESE
SHOWERS AND THUNDERSTORMS WILL BE STRONG OUTFLOW WIND GUSTS OF 40
TO 50 MPH. ALSO EXPECT OCCASIONAL CLOUD TO GROUND LIGHTNING. THIS
ACTIVITY SHOULD CONTINUE THROUGH MOST OF THE EVENING BEFORE
DISSIPATING BETWEEN 10 PM AND MIDNIGHT. BOATERS ON OPEN WATERS
SHOULD BE ESPECIALLY PREPARED FOR SUDDEN...STRONG ERRATIC WIND
GUSTS THAT MAY TOPPLE SMALL CRAFT. THESE WIND GUSTS MAY OCCUR
SEVERAL MILES AWAY FROM THE PARENT STORM.

$$

WYZ020-022-050400-
NATRONA COUNTY LOWER ELEVATIONS-CASPER MOUNTAIN-
INCLUDING THE CITY OF...CASPER
648 PM MDT FRI SEP 4 2015


THROUGH 8 PM...SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS WILL
MOVE NORTH ACROSS NATRONA COUNTY INCLUDING THE CASPER AREA. THE
MAIN HAZARD WITH THESE SHOWERS AND STORMS WILL BE STRONG OUTFLOW
WIND GUSTS UP TO 50 MPH. BOATERS ON OPEN WATERS SHOULD BE
ESPECIALLY PREPARED FOR SUDDEN...STRONG ERRATIC WIND GUSTS THAT
MAY TOPPLE SMALL CRAFT. THESE WIND GUSTS MAY OCCUR SEVERAL MILES
AWAY FROM THE PARENT STORM.

$$



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