Special Weather Statement
Issued by NWS Riverton, WY

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WWUS85 KRIW 122157
SPSRIW

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RIVERTON WY
257 PM MST FRI DEC 12 2014

WYZ026-028-029-131030-
FLAMING GORGE-ROCK SPRINGS AND GREEN RIVER-UPPER GREEN RIVER BASIN-
257 PM MST FRI DEC 12 2014

A POTENTIAL WINTER STORM IS EXPECTED TO DEVELOP OVER SOUTHWEST
WYOMING DURING THE EVENING SATURDAY.  BY MIDNIGHT SNOW AND BRISK
NORTH NORTHEAST WINDS OF 20 MPH WITH GUSTS TO 30 MPH ARE EXPECTED
TO BECOME WIDESPREAD ACROSS WESTERN SWEETWATER COUNTY...AND ALONG
INTERSTATE 80.

THE STORM IS EXPECTED TO CONTINUE INTO SUNDAY AFTERNOON BEFORE
WEAKENING AND MOVING EAST.  HEAVIEST SNOWFALL IS EXPECTED
SUNDAY MORNING WITH ACCUMULATIONS OF 2 TO 4 INCHES...WITH LOCALLY
HIGHER AMOUNTS WILL BE POSSIBLE BY SUNDAY EVENING. THE WIND IS
EXPECTED TO CREATE AREAS OF BLOWING AND DRIFTING SNOW WITH
VISIBILITIES BELOW A QUARTER MILE. TRAVEL ACROSS WESTERN SWEETWATER
COUNTY IS EXPECTED TO BECOME DIFFICULT SATURDAY NIGHT AND SUNDAY.

$$

WYZ016-017-131030-
UPPER WIND RIVER BASIN-WIND RIVER BASIN-
257 PM MST FRI DEC 12 2014

A POTENTIAL WINTER STORM IS EXPECTED TO DEVELOP OVER SOUTHWEST
WYOMING DURING THE EVENING SATURDAY...MOVING NORTHWARD THROUGH THE
DAY SUNDAY. BY MIDNIGHT SNOW AND BRISK NORTH NORTHEAST WINDS OF 15
MPH WITH GUSTS 25 TO 30 MPH ARE EXPECTED TO BECOME WIDESPREAD ACROSS
FREMONT COUNTY...INCLUDING HIGHWAYS 287...789...28 AND 26.

THE STORM IS EXPECTED TO CONTINUE INTO SUNDAY EVENING BEFORE
WEAKENING AND MOVING EAST. SNOWFALL OF 2 TO 3 INCHES...WITH LOCALLY
HIGHER AMOUNTS...IS EXPECTED FROM RIVERTON TO DUBOIS.  THE WIND
IS EXPECTED TO CREATE AREAS OF BLOWING AND DRIFTING SNOW WITH
VISIBILITIES BELOW A QUARTER MILE AT TIMES. TRAVEL ACROSS THE AREA IS
EXPECTED TO BECOME DIFFICULT LATE SATURDAY NIGHT AND SUNDAY.

$$

WYZ003>008-131030-
BIGHORN MOUNTAINS WEST-CODY FOOTHILLS-NORTH BIG HORN BASIN-
OWL CREEK AND BRIDGER MOUNTAINS-SOUTHEAST BIG HORN BASIN-
SOUTHWEST BIG HORN BASIN-
257 PM MST FRI DEC 12 2014

A POTENTIAL WINTER STORM IS EXPECTED TO DEVELOP OVER SOUTHWEST
WYOMING DURING THE EVENING SATURDAY.  BRISK NORTH WINDS OF
15 MPH WITH GUSTS 25 TO 30 MPH ARE EXPECTED TO BECOME WIDESPREAD
ACROSS THE REGION.

THE STORM IS EXPECTED TO CONTINUE INTO SUNDAY EVENING BEFORE
WEAKENING AND MOVING EAST. SNOWFALL OF AROUND AN INCH IS EXPECTED
OVER NORTHERN BIGHORN BASIN...WITH 2 TO 4 INCHES ELSEWHERE...AND
LOCALLY HIGHER AMOUNTS IN THE FOOTHILLS. THE OWL CREEK
AND BRIDGER MOUNTAINS MAY SEE SNOWFALL OF 4 TO 8 INCHES. THE WIND IS
EXPECTED TO CREATE AREAS OF BLOWING AND DRIFTING SNOW WITH
VISIBILITIES BELOW A QUARTER MILE AT TIMES. TRAVEL ACROSS THE AREA IS
EXPECTED TO BECOME DIFFICULT SATURDAY NIGHT AND SUNDAY.

$$

WYZ009>011-131030-
BIGHORN MOUNTAINS SOUTHEAST-NORTHEAST JOHNSON COUNTY-
SOUTHEAST JOHNSON COUNTY-
257 PM MST FRI DEC 12 2014

A POTENTIAL WINTER STORM IS EXPECTED TO DEVELOP OVER SOUTHWEST
WYOMING DURING THE EVENING SATURDAY.  BY MIDNIGHT BRISK
NORTH WINDS OF 15 TO 20 MPH WITH GUSTS 25 TO 30 MPH ARE EXPECTED
TO BECOME WIDESPREAD ACROSS JOHNSON COUNTY...INCLUDING INTERSTATE
25...WITH SNOW BEGINNING IN THE AREA BY SUNDAY MORNING.

THE STORM IS EXPECTED TO CONTINUE WELL INTO SUNDAY EVENING BEFORE
WEAKENING AND MOVING OUT OF THE AREA. SNOWFALL OF 1 TO 3 INCHES...
WITH LOCALLY HIGHER AMOUNTS IN THE FOOTHILLS IS EXPECTED AT THIS
TIME. THE BIGHORN MOUNTAINS MAY SEE SNOWFALL OF 4 TO 8 INCHES. THE
WIND IS EXPECTED TO CREATE AREAS OF BLOWING AND DRIFTING SNOW WITH
VISIBILITIES BELOW A QUARTER MILE. TRAVEL ACROSS THE AREA IS EXPECTED
TO BECOME DIFFICULT SATURDAY NIGHT AND SUNDAY.

$$

WYZ001-012>014-023>025-027-131030-
JACKSON HOLE-SALT RIVER AND WYOMING RANGES-SOUTH LINCOLN COUNTY-
STAR VALLEY-TETON AND GROS VENTRE MOUNTAINS-
UPPER GREEN RIVER BASIN FOOTHILLS-WIND RIVER MOUNTAINS WEST-
YELLOWSTONE NATIONAL PARK-
257 PM MST FRI DEC 12 2014

A POTENTIAL WINTER STORM IS EXPECTED TO BRUSH WESTERN WYOMING
SATURDAY INTO SUNDAY MORNING.  SOUTH WINDS AND LIGHT SNOW WILL BE
REPLACED BY NORTHWEST WINDS OF 10 TO 15 MPH WITH GUSTS 20 TO 30 MPH
SATURDAY NIGHT.

THE STORM IS EXPECTED TO CONTINUE INTO SUNDAY AFTERNOON BEFORE
WEAKENING AND MOVING EAST.  SNOWFALL OF 1 TO 3 INCHES...WITH LOCALLY
HIGHER AMOUNTS...IS EXPECTED AT THIS TIME. THE MOUNTAINS MAY SEE
SNOWFALL OF 4 TO 8 INCHES. THE WIND MAY COMBINE WITH THE SNOW AT
TIMES CREATING AREAS WITH VISIBILITIES DOWN TO A QUARTER OF A MILE
AT TIMES. TRAVEL ACROSS THE AREA IS EXPECTED TO BECOME DIFFICULT
SATURDAY NIGHT AND SUNDAY.

$$

WYZ002-131030-
ABSAROKA MOUNTAINS-
257 PM MST FRI DEC 12 2014

A POTENTIAL WINTER STORM IS EXPECTED TO DEVELOP OVER SOUTHWEST
WYOMING DURING THE EVENING SATURDAY. WEST WINDS WILL BE
REPLACED BY NORTH TO NORTHWEST WINDS OF 10 TO 15 MPH WITH GUSTS 20 TO
25 MPH SATURDAY NIGHT. SNOW WILL BEGIN BY SUNDAY MORNING.

THE STORM IS EXPECTED TO CONTINUE INTO SUNDAY EVENING BEFORE
WEAKENING AND MOVING OUT OF THE AREA. SNOWFALL OF 1 TO 2 INCHES
ACROSS THE NORTHERN MOUNTAINS...WITH 2 TO 6 INCHES ACROSS THE
SOUTHERN ABSAROKAS IS EXPECTED AT THIS TIME. THE WIND MAY COMBINE
WITH THE SNOW AT TIMES CREATING AREAS WITH VISIBILITIES DOWN TO A
QUARTER OF A MILE AT TIMES. TRAVEL ACROSS THE AREA IS EXPECTED TO
BECOME DIFFICULT SATURDAY NIGHT AND SUNDAY.

$$

JB/C.BAKER



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