Special Weather Statement
Issued by NWS Riverton, WY

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WWUS85 KRIW 260126
SPSRIW

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RIVERTON WY
726 PM MDT SAT APR 25 2015

WYZ003-004-261000-
CODY FOOTHILLS-NORTH BIG HORN BASIN-
726 PM MDT SAT APR 25 2015

ANOTHER CHANGE IN THE WEATHER IS ON THE WAY AS RAIN MIXES WITH
SNOW BY SUNRISE ON SUNDAY. VERY WET SNOW MAY DEVELOP AND PERSIST
THROUGH SUNDAY MORNING BEFORE CHANGING BACK TO ALL RAIN. EXPECT
ACCUMULATIONS OF LESS THAN AN INCH ON GRASSY AREAS...WITH LITTLE TO
NO ACCUMULATION ON THE ROADWAYS. THE EXCEPTION COULD BE AROUND
MEETEETSE WHERE 2 TO 3 INCHES OF SNOW COULD ACCUMULATE. THE WET
WEATHER WILL PERSIST THROUGH SUNDAY AFTERNOON BEFORE ENDING BY
SUNDAY EVENING.

$$

WYZ019-026>030-261000-
EAST SWEETWATER COUNTY-FLAMING GORGE-
GREEN MOUNTAINS AND RATTLESNAKE RANGE-ROCK SPRINGS AND GREEN RIVER-
SOUTH LINCOLN COUNTY-UPPER GREEN RIVER BASIN-
726 PM MDT SAT APR 25 2015

ANOTHER CHANGE IN THE WEATHER IS ON THE WAY AS RAIN MIXES WITH
SNOW BY SUNRISE ON SUNDAY. VERY WET SNOW MAY DEVELOP AND PERSIST
THROUGH SUNDAY MORNING BEFORE CHANGING BACK TO ALL RAIN. EXPECT
ACCUMULATIONS OF LESS THAN 2 INCHES ON GRASSY AREAS IN THE LOWER
ELEVATIONS...TO AS MUCH AS 4 INCHES IN THE GREEN AND
RATTLESNAKE MOUNTAINS. LITTLE ACCUMULATION IS EXPECTED ON THE
ROADWAYS. THE WET WEATHER WILL PERSIST THROUGH THE AFTERNOON BEFORE
ENDING BY SUNDAY EVENING.

$$

WYZ020-022-261000-
CASPER MOUNTAIN-NATRONA COUNTY LOWER ELEVATIONS-
726 PM MDT SAT APR 25 2015

PERIODS OF LIGHT TO MODERATE RAIN ARE EXPECTED TO DEVELOP AFTER
MIDNIGHT ACROSS NATRONA COUNTY...AND LAST ON AND OFF THROUGH THE DAY
SUNDAY. THE AIR MASS IS RELATIVELY WARM...WITH SNOW EXPECTED TO
OCCUR ONLY ABOVE 7000 FEET THROUGH THE DAY SUNDAY. COLDER AIR WORKS
INTO THE AREA SUNDAY EVENING WITH SNOW POSSIBLY LOWERING TO THE
VALLEY FLOOR. SNOW ACCUMULATION THROUGH SUNDAY NIGHT ACROSS
CASPER MOUNTAIN IS EXPECTED TO BE IN THE 2 TO 5 INCH RANGE...WHILE
LOWER ELEVATIONS SHOULD SEE AN INCH OR LESS. ROADS IN THE LOWER
ELEVATIONS ARE EXPECTED TO REMAIN ONLY WET.

$$

WYZ001-261000-
YELLOWSTONE NATIONAL PARK-
726 PM MDT SAT APR 25 2015

ANOTHER CHANGE IN THE WEATHER IS ON THE WAY AS RAIN MIXES WITH
SNOW BY SUNRISE ON SUNDAY. VERY WET SNOW MAY DEVELOP PERSIST THROUGH
SUNDAY MORNING BEFORE CHANGING BACK TO ALL RAIN BELOW 6500 FEET.
EXPECT ACCUMULATIONS OF LESS THAN 2 INCHES ON GRASSY AREAS IN THE
LOWER VALLEYS...TO AS MUCH AS 4 OR 5 INCHES IN THE MOUNTAINS. SLUSHY
AREAS OF SNOW MAY BE PRESENT ON THE ROADWAYS SUNDAY MORNING.
THE WET WEATHER WILL PERSIST THROUGH THE AFTERNOON BEFORE ENDING BY
SUNDAY EVENING.

$$

WYZ013-023-261000-
JACKSON HOLE-STAR VALLEY-
726 PM MDT SAT APR 25 2015

ANOTHER CHANGE IN THE WEATHER IS ON THE WAY AS RAIN MIXES WITH
SNOW BY SUNRISE ON SUNDAY. VERY WET SNOW MAY PERSIST THROUGH SUNDAY
MORNING BEFORE CHANGING BACK TO ALL RAIN BY AFTERNOON. EXPECT
ACCUMULATIONS OF LESS THAN 2 INCHES ON GRASSY AREAS IN THE LOWER
ELEVATIONS...WITH AS MUCH AS 6 INCHES IN THE SURROUNDING MOUNTAINS.
SLUSHY AREAS OF SNOW MAY BE PRESENT ON THE ROADWAYS SUNDAY MORNING.
THE WET WEATHER WILL PERSIST THROUGH THE AFTERNOON BEFORE ENDING BY
SUNDAY EVENING.

$$

WYZ017-018-261000-
LANDER FOOTHILLS-WIND RIVER BASIN-
726 PM MDT SAT APR 25 2015

A LARGE AREA OF RAIN IS EXPECTED TO DEVELOP ACROSS THE WIND RIVER
BASIN BETWEEN 9 PM AND MIDNIGHT...AND LAST ON AND OFF THROUGH THE
DAY SUNDAY. THE AIR MASS IS RELATIVELY WARM WITH SNOW LEVELS...ONLY
LOWERING TO AROUND 5500 FEET BY SUNRISE SUNDAY. THE RAIN AND SNOW
COULD CHANGE BACK TO ALL RAIN IN THE AFTERNOON. THE PRECIPITATION IS
THEN EXPECTED TO COME TO AN END SUNDAY NIGHT. LITTLE OR NO
ACCUMULATION IS EXPECTED ACROSS MUCH OF THE LOWER ELEVATIONS OF THE
WIND RIVER BASIN...INCLUDING RIVERTON...SHOSHONI AND HUDSON. LANDER
COULD SEE ONE TO POSSIBLY TWO INCHES ON GRASSY AREAS BY NOON SUNDAY.
MORE SIGNIFICANT SNOWFALL IS EXPECTED TO OCCUR NORTHWEST OF CROWHEART
AND OVER SOUTH PASS WHERE A WINTER WEATHER ADVISORY IS IN EFFECT LATE
TONIGHT INTO THE DAY SUNDAY.

$$

TEAM RIVERTON




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