Special Weather Statement
Issued by NWS Riverton, WY

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WWUS85 KRIW 132015
SPSRIW

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RIVERTON WY
115 PM MST SAT DEC 13 2014

WYZ026-028-029-141100-
FLAMING GORGE-ROCK SPRINGS AND GREEN RIVER-UPPER GREEN RIVER BASIN-
115 PM MST SAT DEC 13 2014

A WINTER STORM IS DEVELOPING OVER SOUTHWEST WYOMING THIS AFTERNOON
AND WILL INTENSIFY THROUGH THIS EVENING.  LIGHT SNOW WILL INCREASE
ACROSS THE AREA THIS EVENING. THEN BY MIDNIGHT TONIGHT...BRISK NORTH
NORTHWEST WINDS OF 15 TO 20 MPH WITH GUSTS TO 30 MPH ARE EXPECTED TO
BECOME WIDESPREAD ACROSS WESTERN SWEETWATER COUNTY...AND ALONG
PORTIONS INTERSTATE 80.  AREAS OF SNOW MAY COMBINE WITH THESE
WINDS OFFERING REDUCED VISIBILITY AT TIMES. THE STORM IS EXPECTED TO
CONTINUE INTO SUNDAY AFTERNOON BEFORE WEAKENING AND MOVING EAST.
TOTAL ACCUMULATING SNOWFALL WITH THIS SYSTEM SHOULD REMAIN BELOW 3
INCHES OVER WESTERN SWEETWATER AND SUBLETTE COUNTIES.

$$

WYZ016-141100-
UPPER WIND RIVER BASIN-
115 PM MST SAT DEC 13 2014

A WINTER STORM IS DEVELOPING OVER SOUTHWEST WYOMING THIS AFTERNOON...
AND WILL INTENSIFY TONIGHT  SNOW WILL INCREASE BY MIDNIGHT
TONIGHT.  SNOW AND BRISK NORTH TO NORTHWEST WINDS OF 15 MPH WITH
GUSTS 20 TO 25 MPH ARE EXPECTED TO BECOME WIDESPREAD ACROSS WESTERN
FREMONT COUNTY.

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 NEAR DUBOIS. THE
WIND IS EXPECTED TO CREATE AREAS OF BLOWING AND DRIFTING SNOW WITH
VISIBILITIES BELOW A HALF MILE AT TIMES. TRAVEL ACROSS THE AREA MAY
BECOME DIFFICULT AT TIMES LATE SATURDAY NIGHT AND SUNDAY.

$$

WYZ003>008-141100-
BIGHORN MOUNTAINS WEST-CODY FOOTHILLS-NORTH BIG HORN BASIN-
OWL CREEK AND BRIDGER MOUNTAINS-SOUTHEAST BIG HORN BASIN-
SOUTHWEST BIG HORN BASIN-
115 PM MST SAT DEC 13 2014

A WINTER STORM IS DEVELOPING OVER SOUTHWEST WYOMING THIS AFTERNOON
AND WILL INTENSIFY TONIGHT.  BRISK NORTH WINDS OF 20 MPH WITH GUSTS
TO 30 MPH ARE EXPECTED TO BECOME WIDESPREAD ACROSS THE REGION LATER
TONIGHT.

THE STORM IS EXPECTED TO CONTINUE INTO SUNDAY EVENING BEFORE
WEAKENING AND MOVING EAST. SNOWFALL OF AROUND AN INCH IS EXPECTED
OVER MOST OF THE NORTHERN BIGHORN BASIN...WITH 1 TO 3 INCHES
ELSEWHERE. LOCALLY HIGHER AMOUNTS MAY BE FOUND IN THE FOOTHILLS AND
MOUNTAINS OF THE AREA. THE OWL CREEK AND BRIDGER MOUNTAINS MAY SEE
SNOWFALL OF 3 TO 6 INCHES. THE WIND IS EXPECTED TO CREATE AREAS OF
BLOWING AND DRIFTING SNOW WITH VISIBILITIES BELOW A HALF MILE AT
TIMES. TRAVEL ACROSS THE AREA MAY BECOME DIFFICULT AT TIMES TONIGHT
AND SUNDAY.

$$

WYZ009>011-141100-
BIGHORN MOUNTAINS SOUTHEAST-NORTHEAST JOHNSON COUNTY-
SOUTHEAST JOHNSON COUNTY-
115 PM MST SAT DEC 13 2014

A WINTER STORM IS DEVELOPING OVER SOUTHWEST WYOMING THIS AFTERNOON
AND WILL INTENSIFY TONIGHT.  BY MIDNIGHT BRISK NORTH WINDS OF 20 TO
25 MPH WITH GUSTS TO 35 MPH ARE EXPECTED TO BECOME WIDESPREAD ACROSS
JOHNSON COUNTY...INCLUDING INTERSTATES 25 AND 90...WITH SNOW
INCREASING 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 AT TIMES. TRAVEL ACROSS THE AREA
MAY BECOME DIFFICULT BY SUNDAY MORNING.

$$

WYZ001-012>014-023>025-027-141100-
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-
115 PM MST SAT DEC 13 2014

A MODEST WINTER STORM IS EXPECTED TO INFLUENCE WESTERN WYOMING
THIS AFTERNOON THROUGH THROUGH SUNDAY MORNING. SOUTH WINDS AND LIGHT
SNOW WILL BE REPLACED BY WEST TO NORTHWEST WINDS OF 10 TO 15 MPH WITH
GUSTS 20 TO 25 MPH LATER THIS AFTERNOON.

THE STORM IS EXPECTED TO CONTINUE INTO SUNDAY AFTERNOON BEFORE
WEAKENING AND MOVING EAST.  GENERALLY...SNOWFALL OF 1 TO 3 INCHES...
WITH LOCALLY HIGHER AMOUNTS...IS EXPECTED AT THIS TIME. THE MOUNTAINS
MAY SEE SNOWFALL OF 3 TO 7 INCHES. THE WIND MAY COMBINE WITH THE SNOW
AT TIMES CREATING AREAS WITH VISIBILITIES DOWN TO A HALF MILE
AT TIMES. TRAVEL ACROSS THE AREA MAY BECOME DIFFICULT AT TIMES.

$$

WYZ002-141100-
ABSAROKA MOUNTAINS-
115 PM MST SAT DEC 13 2014

A WINTER STORM IS DEVELOPING OVER SOUTHWEST WYOMING THIS AFTERNOON
AND WILL INTENSIFY TONIGHT.  WEST WINDS WILL BE REPLACED BY NORTHWEST
WINDS OF 10 TO 15 MPH WITH GUSTS 20 TO 25 MPH THIS EVENING...WITH
SNOW INCREASING ACROSS THE MOUNTAINS.

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 3 TO 6 INCHES ACROSS THE
SOUTHERN ABSAROKA MOUNTAINS IS EXPECTED. 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 MAY BECOME DIFFICULT AT
TIMES TONIGHT AND SUNDAY.

$$

JB/C.BAKER



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