Blizzard Warning 3, NWS Riverton, WY

000 
WWUS45 KRIW 041801
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
1201 PM MDT SAT APR 4 2009

...A MAJOR WINTER-LIKE STORM SYSTEM WILL IMPACT MANY AREAS OF
CENTRAL WYOMING THROUGH TODAY...

.SNOW WILL CONTINUE EAST OF THE DIVIDE AS WELL AS OVER SWEETWATER
COUNTY THROUGH TODAY...BRINGING A PROLONGED PERIOD SNOW AND
STRONG NORTH WIND CREATING CONSIDERABLE BLOWING AND DRIFTING SNOW.

WYZ008-050000-
/O.EXT.KRIW.WS.W.0028.000000T0000Z-090405T0000Z/
BIGHORN MOUNTAINS WEST-
1201 PM MDT SAT APR 4 2009

...WINTER STORM WARNING NOW IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL 6 PM MDT THIS
EVENING. 

SNOW WILL CONTINUE THROUGH THE AFTERNOON BEFORE ENDING TOWARDS
EVENING. EARLIER REPORTS INDICATED ABOUT 5 TO 10 INCHES OF SNOW
HAD ALREADY FALLEN ALONG THE WEST SLOPE OF THE BIG HORN MOUNTAINS.
TOTAL SNOW ACCUMULATION OF 8 TO 16 INCHES IS EXPECTED BY THIS
EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A WINTER STORM WARNING MEANS SEVERE WINTER WEATHER
CONDITIONS ARE IMMINENT OR HIGHLY LIKELY.

&&

$$

WYZ015-050000-
/O.CON.KRIW.BZ.W.0003.000000T0000Z-090405T0000Z/
WIND RIVER MOUNTAINS EAST-
1201 PM MDT SAT APR 4 2009

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

A BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING.

SNOW...HEAVY AT TIMES...COMBINED WITH NORTHEAST WINDS OF 30 TO
40 MPH WITH GUSTS TO 50 MPH WILL CONTINUE TO CREATE BLIZZARD
CONDITIONS AND NEAR ZERO VISIBILITY AT TIMES THROUGH THE
AFTERNOON HOURS. TOTAL SNOWFALL OF 12 TO 18 INCHES IS EXPECTED BY
LATE AFTERNOON. SOUTH PASS WAS STILL CLOSED AROUND MIDDAY SO PLEASE
CHECK THE LATEST ROAD CONDITIONS BY DIALING 5 1 1 OR CHECK THE WEB AT
WWW.WYOROAD.INFO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A WINTER STORM WARNING MEANS SEVERE WINTER WEATHER
CONDITIONS ARE IMMINENT OR HIGHLY LIKELY.

A BLIZZARD WARNING IS ISSUED WHEN SUSTAINED WIND SPEEDS OR
FREQUENT GUSTS OF OVER 35 MPH ARE EXPECTED WITH CONSIDERABLE
FALLING AND/OR BLOWING AND DRIFTING SNOW.  VISIBILITIES WILL
BECOME POOR...WITH WHITEOUT CONDITIONS AT TIMES.  THOSE VENTURING
OUTDOORS MAY BECOME LOST OR DISORIENTED...SO PERSONS IN THE
WARNING AREA ARE ADVISED TO STAY INDOORS.

&&

$$

WYZ010-011-050000-
/O.CON.KRIW.WS.W.0028.000000T0000Z-090405T0000Z/
NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY-
INCLUDING THE CITIES OF...BUFFALO...KAYCEE
1201 PM MDT SAT APR 4 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING. 

SNOW...HEAVY AT TIMES...ALONG WITH NORTH WIND OF 20 TO 30 MPH
GUSTING OVER 40 MPH AT TIMES WILL CONTINUE THROUGH THE AFTERNOON.
TOTAL SNOWFALL OF 5 TO 10 INCHES IS EXPECTED BY THIS EVENING. AROUND
7 INCHES OF SNOW WAS REPORTED AROUND BUFFALO AS OF MIDDAY. TRAVEL
WILL BE QUITE TREACHEROUS TODAY WITH SHARPLY REDUCED VISIBILITIES...ICY
ROADS AND CONTINUED SNOWFALL. CHECK THE LATEST ROAD CONDITIONS IF
TRAVEL IS ABSOLUTELY NECESSARY TODAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A WINTER STORM WARNING MEANS SEVERE WINTER WEATHER
CONDITIONS ARE IMMINENT OR HIGHLY LIKELY.

&&

$$

WYZ009-050000-
/O.CON.KRIW.WS.W.0028.000000T0000Z-090405T0000Z/
BIGHORN MOUNTAINS SOUTHEAST-
1201 PM MDT SAT APR 4 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING. 

SNOW WILL CONTINUE THROUGH THE AFTERNOON WITH TOTAL SNOWFALL OF
12 TO 18 INCHES WITH LOCALLY HIGHER AMOUNTS. 8 TO 16 INCHES OF SNOW HAS
ALREADY FALLEN ALONG THE EAST SLOPE OF THE BIG HORN MOUNTAINS.
CHECK THE LATEST ROAD CONDITIONS BY DIALING 5 1 1 OR ON THE WEB AT
WWW.WYOROAD.INFO BEFORE TRAVELLING THROUGH THE MOUNTAINS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A WINTER STORM WARNING MEANS SEVERE WINTER WEATHER
CONDITIONS ARE IMMINENT OR HIGHLY LIKELY.

&&

$$

WYZ030-050000-
/O.CON.KRIW.WS.W.0028.000000T0000Z-090405T0000Z/
EAST SWEETWATER COUNTY-
INCLUDING THE CITY OF...WAMSUTTER
1201 PM MDT SAT APR 4 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING. 

SNOW AND STRONG NORTHEAST WIND OF 25 TO 35 MPH WITH STRONGER GUSTS WILL
CONTINUE INTO THE AFTERNOON CAUSING SHARPLY REDUCED VISIBILITY AND
ICY ROADS. TOTAL SNOW ACCUMULATION ALONG THE INTERSTATE 80
CORRIDOR WILL RANGE FROM 4 TO 8 INCHES BY THIS EVENING...WITH THE
HEAVIEST SNOW BEING IN THE EASTERN PART OF SWEETWATER COUNTY.
WIDESPREAD BLOWING AND DRIFTING SNOW IS LIKELY THROUGH THIS
AFTERNOON. CHECK THE LATEST ROAD CONDITIONS BY DIALING 5 1 1
BEFORE VENTURING OUT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A WINTER STORM WARNING MEANS SEVERE WINTER WEATHER
CONDITIONS ARE IMMINENT OR HIGHLY LIKELY.

&&

$$

WYZ020-022-050000-
/O.CON.KRIW.WS.W.0028.000000T0000Z-090405T0000Z/
NATRONA COUNTY LOWER ELEVATIONS-CASPER MOUNTAIN-
INCLUDING THE CITY OF...CASPER
1201 PM MDT SAT APR 4 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING. 

SNOW...HEAVY AT TIMES...ALONG WITH NORTH WIND OF 20 TO 30 MPH
WITH GUSTS TO 40 MPH WILL CONTINUE THROUGH THE AFTERNOON. TOTAL
SNOW ACCUMULATION IN THE CASPER AREA WILL RANGE FROM 5 TO
10 INCHES WITH 12 TO 18 INCHES ON CASPER MOUNTAIN. THE
COMBINATION OF SNOW AND WIND WILL CAUSE CONSIDERABLE BLOWING AND
DRIFTING SNOW AND SHARPLY REDUCED VISIBILITY. EARLY SNOW REPORTS
INDICATE THAT 3 TO 5 INCHES OF SNOW HAD FALLEN AROUND CASPER WITH
UP TO 10 INCHES REPORTED ON CASPER MOUNTAIN. CHECK THE LATEST ROAD
CONDITIONS BY DIALING 5 1 1 BEFORE VENTURING OUT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A WINTER STORM WARNING MEANS SEVERE WINTER WEATHER
CONDITIONS ARE IMMINENT OR HIGHLY LIKELY.

&&

$$

WYZ018-050000-
/O.CON.KRIW.WS.W.0028.000000T0000Z-090405T0000Z/
LANDER FOOTHILLS-
INCLUDING THE CITY OF...LANDER
1201 PM MDT SAT APR 4 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING. 

SNOW...HEAVY AT TIMES...WILL CONTINUE TODAY ALONG WITH NORTH WIND
10 TO 20 MPH. LATE MORNING REPORTS INDICATE THAT 4 TO 6 INCHES OF
SNOW HAD FALLEN AROUND LANDER WITH 10 TO 18 INCHES ACROSS THE
SOUTHERN EAST SLOPES OF THE WIND RIVER MOUNTAINS WITH LESS SNOW
REPORTED NORTH OF THERE. TOTAL SNOW ACCUMULATION IN THE EAST WIND
RIVER MOUNTAINS OF 12 TO 20 INCHES IS EXPECTED BY THIS EVENING
WITH 6 TO 12 INCHES AROUND LANDER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A WINTER STORM WARNING MEANS SEVERE WINTER WEATHER
CONDITIONS ARE IMMINENT OR HIGHLY LIKELY.

&&

$$

WYZ019-050000-
/O.CON.KRIW.WS.W.0028.000000T0000Z-090405T0000Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
INCLUDING THE CITY OF...JEFFREY CITY
1201 PM MDT SAT APR 4 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING. 

SNOW WILL CONTINUE TODAY ALONG WITH NORTHEAST WIND OF 20 TO
30 MPH CAUSING CONSIDERABLE BLOWING AND DRIFTING SNOW AND ICY ROADS.
TOTAL SNOW ACCUMULATION IN THE GREEN MOUNTAINS AND RATTLESNAKE
RANGE OF 6 TO 10 INCHES IS EXPECTED BY THIS EVENING. CHECK THE
LATEST ROAD CONDITIONS AT 5 1 1 OR ON THE WEB AT WWW.WYOROAD.INFO
AS SOME ROADS WERE CLOSED AT MIDDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A WINTER STORM WARNING MEANS SEVERE WINTER WEATHER
CONDITIONS ARE IMMINENT OR HIGHLY LIKELY.

&&

$$

WYZ017-050000-
/O.CON.KRIW.WW.Y.0022.000000T0000Z-090405T0000Z/
WIND RIVER BASIN-
INCLUDING THE CITIES OF...RIVERTON...SHOSHONI
1201 PM MDT SAT APR 4 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING. 

LIGHT TO MODERATE SNOW WILL CONTINUE THIS AFTERNOON ALONG WITH A NORTH
WIND 20 TO 30 MPH CAUSING AREAS OF BLOWING AND DRIFTING SNOW.
LOCALLY STRONGER WINDS ARE EXPECTED NEAR THE MOUTH OF THE WIND
RIVER CANYON. TOTAL SNOW ACCUMULATION OF 3 TO 5 INCHES IS EXPECTED
FROM NEAR A PAVILION TO RIVERTON TO GAS HILLS LINE SOUTHWESTWARD.
1 TO 3 INCHES IS EXPECTED IN THE LOWER ELEVATIONS OF THE BASIN
INCLUDING BOYSEN RESERVOIR AND SHOSHONI.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE
TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED
VISIBILITIES...AND USE CAUTION WHILE DRIVING.

&&

$$

WYZ028-029-050000-
/O.CON.KRIW.WW.Y.0022.000000T0000Z-090405T0000Z/
ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-
INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER
1201 PM MDT SAT APR 4 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING. 

SNOW WILL CONTINUE TODAY ALONG WITH CONSIDERABLE BLOWING AND
DRIFTING SNOW CAUSED BY NORTHEAST WINDS OF 20 TO 35 MPH. TOTAL
SNOW ACCUMULATION IN WESTERN SWEETWATER COUNTY OF 2 TO 4 INCHES
IS EXPECTED BY THIS EVENING WITH LOCALLY HIGHER AMOUNTS IN THE
FAR WESTERN PART OF THE COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE
TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED
VISIBILITIES...AND USE CAUTION WHILE DRIVING.

&&

$$

WYZ007-050000-
/O.CON.KRIW.WW.Y.0022.000000T0000Z-090405T0000Z/
OWL CREEK AND BRIDGER MOUNTAINS-
1201 PM MDT SAT APR 4 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING. 

SNOW AND NORTH WIND OF 25 TO 35 MPH WILL CONTINUE TODAY WITH
TOTAL SNOW ACCUMULATION IN THE OWL CREEK AND BRIDGER MOUNTAINS OF
6 TO 8 INCHES BY THIS EVENING. WIDESPREAD BLOWING AND DRIFTING
SNOW IS LIKELY TODAY AS WELL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE
TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED
VISIBILITIES...AND USE CAUTION WHILE DRIVING.

&&

$$

TEAM RIVERTON

000 
WWUS45 KRIW 041927
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
127 PM MDT SAT APR 4 2009

...A MAJOR WINTER-LIKE STORM SYSTEM WILL IMPACT MANY AREAS OF
CENTRAL WYOMING THROUGH TODAY...

.SNOW WILL CONTINUE EAST OF THE DIVIDE AS WELL AS OVER SWEETWATER
COUNTY THROUGH TODAY...BRINGING A PROLONGED PERIOD SNOW AND
STRONG NORTH WIND CREATING CONSIDERABLE BLOWING AND DRIFTING
SNOW.

WYZ015-050000-
/O.CON.KRIW.BZ.W.0003.000000T0000Z-090405T0000Z/
WIND RIVER MOUNTAINS EAST-
127 PM MDT SAT APR 4 2009

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

A BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING.

SNOW...HEAVY AT TIMES...COMBINED WITH NORTHEAST WINDS OF 30 TO
40 MPH WITH GUSTS TO 50 MPH WILL CONTINUE TO CREATE BLIZZARD
CONDITIONS AND NEAR ZERO VISIBILITY AT TIMES THROUGH THE
AFTERNOON HOURS. TOTAL SNOWFALL OF 1 TO 2 FEET IS EXPECTED BY LATE
AFTERNOON. SOUTH PASS WAS STILL CLOSED THIS AFTERNOON SO PLEASE 
CHECK THE LATEST ROAD CONDITIONS BY DIALING 5 1 1 OR CHECK THE
WEB AT WWW.WYOROAD.INFO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A WINTER STORM WARNING MEANS SEVERE WINTER WEATHER
CONDITIONS ARE IMMINENT OR HIGHLY LIKELY.

A BLIZZARD WARNING IS ISSUED WHEN SUSTAINED WIND SPEEDS OR
FREQUENT GUSTS OF OVER 35 MPH ARE EXPECTED WITH CONSIDERABLE
FALLING AND/OR BLOWING AND DRIFTING SNOW.  VISIBILITIES WILL
BECOME POOR...WITH WHITEOUT CONDITIONS AT TIMES.  THOSE VENTURING
OUTDOORS MAY BECOME LOST OR DISORIENTED...SO PERSONS IN THE
WARNING AREA ARE ADVISED TO STAY INDOORS.

&&

$$

WYZ010-011-050000-
/O.CON.KRIW.WS.W.0028.000000T0000Z-090405T0000Z/
NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY-
INCLUDING THE CITIES OF...BUFFALO...KAYCEE
127 PM MDT SAT APR 4 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING. 

SNOW...HEAVY AT TIMES...ALONG WITH NORTH WIND OF 20 TO 30 MPH
GUSTING OVER 40 MPH AT TIMES WILL CONTINUE THROUGH THE AFTERNOON.
TOTAL SNOWFALL OF 5 TO 10 INCHES IS EXPECTED BY THIS EVENING.
AROUND 7 INCHES OF SNOW WAS REPORTED AROUND BUFFALO AS OF MIDDAY.
TRAVEL WILL BE QUITE TREACHEROUS TODAY WITH SHARPLY REDUCED
VISIBILITIES...ICY ROADS AND CONTINUED SNOWFALL. CHECK THE LATEST
ROAD CONDITIONS IF TRAVEL IS ABSOLUTELY NECESSARY TODAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A WINTER STORM WARNING MEANS SEVERE WINTER WEATHER
CONDITIONS ARE IMMINENT OR HIGHLY LIKELY.

&&

$$

WYZ009-050000-
/O.CON.KRIW.WS.W.0028.000000T0000Z-090405T0000Z/
BIGHORN MOUNTAINS SOUTHEAST-
127 PM MDT SAT APR 4 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING. 

SNOW WILL CONTINUE THROUGH THE AFTERNOON WITH TOTAL SNOWFALL OF
12 TO 18 INCHES WITH LOCALLY HIGHER AMOUNTS. 8 TO 16 INCHES OF
SNOW HAS ALREADY FALLEN ALONG THE EAST SLOPE OF THE BIG HORN
MOUNTAINS. CHECK THE LATEST ROAD CONDITIONS BY DIALING 5 1 1 OR
ON THE WEB AT WWW.WYOROAD.INFO BEFORE TRAVELLING THROUGH THE
MOUNTAINS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A WINTER STORM WARNING MEANS SEVERE WINTER WEATHER
CONDITIONS ARE IMMINENT OR HIGHLY LIKELY.

&&

$$

WYZ030-050000-
/O.CON.KRIW.WS.W.0028.000000T0000Z-090405T0000Z/
EAST SWEETWATER COUNTY-
INCLUDING THE CITY OF...WAMSUTTER
127 PM MDT SAT APR 4 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING. 

SNOW AND STRONG NORTHEAST WIND OF 25 TO 35 MPH WITH STRONGER
GUSTS WILL CONTINUE INTO THE AFTERNOON CAUSING SHARPLY REDUCED
VISIBILITY AND ICY ROADS. TOTAL SNOW ACCUMULATION ALONG THE
INTERSTATE 80 CORRIDOR WILL RANGE FROM 4 TO 8 INCHES BY THIS
EVENING...WITH THE HEAVIEST SNOW BEING IN THE EASTERN PART OF
SWEETWATER COUNTY. WIDESPREAD BLOWING AND DRIFTING SNOW IS LIKELY
THROUGH THIS AFTERNOON. CHECK THE LATEST ROAD CONDITIONS BY
DIALING 5 1 1 BEFORE VENTURING OUT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A WINTER STORM WARNING MEANS SEVERE WINTER WEATHER
CONDITIONS ARE IMMINENT OR HIGHLY LIKELY.

&&

$$

WYZ008-050000-
/O.CON.KRIW.WS.W.0028.000000T0000Z-090405T0000Z/
BIGHORN MOUNTAINS WEST-
127 PM MDT SAT APR 4 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING. 

SNOW WILL CONTINUE THROUGH THE AFTERNOON BEFORE ENDING TOWARDS
EVENING. EARLIER REPORTS INDICATED ABOUT 5 TO 10 INCHES OF SNOW
HAD ALREADY FALLEN ALONG THE WEST SLOPE OF THE BIG HORN
MOUNTAINS. TOTAL SNOW ACCUMULATION OF 8 TO 16 INCHES IS EXPECTED
BY THIS EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A WINTER STORM WARNING MEANS SEVERE WINTER WEATHER
CONDITIONS ARE IMMINENT OR HIGHLY LIKELY.

&&

$$

WYZ020-022-050000-
/O.CON.KRIW.WS.W.0028.000000T0000Z-090405T0000Z/
NATRONA COUNTY LOWER ELEVATIONS-CASPER MOUNTAIN-
INCLUDING THE CITY OF...CASPER
127 PM MDT SAT APR 4 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING. 

SNOW...HEAVY AT TIMES...ALONG WITH NORTH WIND OF 20 TO 30 MPH
WITH GUSTS TO 40 MPH WILL CONTINUE THROUGH THE AFTERNOON. TOTAL
SNOW ACCUMULATION IN THE CASPER AREA WILL RANGE FROM 5 TO
10 INCHES WITH 12 TO 18 INCHES ON CASPER MOUNTAIN. THE
COMBINATION OF SNOW AND WIND WILL CAUSE CONSIDERABLE BLOWING AND
DRIFTING SNOW AND SHARPLY REDUCED VISIBILITY. EARLY SNOW REPORTS
INDICATE THAT 3 TO 5 INCHES OF SNOW HAD FALLEN AROUND CASPER WITH
DRIFTS UP TO 3 AND A HALF FEET. ON CASPER MOUNTAIN...UP TO 13
INCHES OF SNOW WAS REPORTED. CHECK THE LATEST ROAD CONDITIONS BY
DIALING 5 1 1 BEFORE VENTURING OUT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A WINTER STORM WARNING MEANS SEVERE WINTER WEATHER
CONDITIONS ARE IMMINENT OR HIGHLY LIKELY.

&&

$$

WYZ018-050000-
/O.CON.KRIW.WS.W.0028.000000T0000Z-090405T0000Z/
LANDER FOOTHILLS-
INCLUDING THE CITY OF...LANDER
127 PM MDT SAT APR 4 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING. 

SNOW WILL CONTINUE THIS AFTERNOON ALONG WITH NORTH WIND 10 TO 20 MPH. 
EARLY AFTERNOON REPORTS INDICATE THAT 6 INCHES OF SNOW HAD FALLEN
AROUND LANDER WITH 1 TO 2 FEET ACROSS THE SOUTHERN EAST SLOPES OF THE
WIND RIVER MOUNTAINS WITH LESS SNOW REPORTED NORTH OF THERE. TOTAL
SNOW ACCUMULATION IN THE EAST WIND RIVER MOUNTAINS OF 15 TO 25 INCHES
IS EXPECTED BY THIS EVENING WITH 6 TO 9 INCHES AROUND LANDER AND
MORE IN THE FOOTHILLS. A WEATHER SPOTTER REPORTED 17 INCHES OF
NEW SNOW IN SINKS CANYON JUST A MILE BELOW BRUCES CAMP.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A WINTER STORM WARNING MEANS SEVERE WINTER WEATHER
CONDITIONS ARE IMMINENT OR HIGHLY LIKELY.

&&

$$

WYZ019-050000-
/O.CON.KRIW.WS.W.0028.000000T0000Z-090405T0000Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
INCLUDING THE CITY OF...JEFFREY CITY
127 PM MDT SAT APR 4 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING. 

SNOW WILL CONTINUE TODAY ALONG WITH NORTHEAST WIND OF 20 TO
35 MPH CAUSING CONSIDERABLE BLOWING AND DRIFTING SNOW AND ICY
ROADS. TOTAL SNOW ACCUMULATION IN THE GREEN MOUNTAINS AND
RATTLESNAKE RANGE OF 6 TO 10 INCHES IS EXPECTED BY THIS EVENING.
CHECK THE LATEST ROAD CONDITIONS AT 5 1 1 OR ON THE WEB AT
WWW.WYOROAD.INFO AS MOST AREA HIGHWAYS WERE CLOSED THIS AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A WINTER STORM WARNING MEANS SEVERE WINTER WEATHER
CONDITIONS ARE IMMINENT OR HIGHLY LIKELY.

&&

$$

WYZ017-050000-
/O.CON.KRIW.WW.Y.0022.000000T0000Z-090405T0000Z/
WIND RIVER BASIN-
INCLUDING THE CITIES OF...RIVERTON...SHOSHONI
127 PM MDT SAT APR 4 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING. 

EVEN THOUGH SNOW HAD DECREASED AROUND RIVERTON...LIGHT TO MODERATE
SNOW CONTINUED THIS AFTERNOON BETWEEN PAVILLION AND FORT WASHAKIE
AND ALONG EAST AND NORTHEAST OF RIVERTON. THIS SNOWFALL WILL
CONTINUE TO BE BLOWN ABOUT BY A NORTHEAST WIND 20 TO 30 MPH CAUSING
AREAS OF BLOWING AND DRIFTING SNOW. TOTAL SNOW ACCUMULATION OF 3
TO 5 INCHES IS EXPECTED FROM NEAR A PAVILION TO RIVERTON TO GAS
HILLS LINE SOUTHWESTWARD. 1 TO 3 INCHES IS EXPECTED IN THE LOWER
ELEVATIONS OF THE BASIN INCLUDING BOYSEN RESERVOIR AND SHOSHONI. 
RIVERTON REPORTED 3 TO 4 INCHES OF SNOW AS OF MIDDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE
TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED
VISIBILITIES...AND USE CAUTION WHILE DRIVING.

&&

$$

WYZ028-029-050000-
/O.CON.KRIW.WW.Y.0022.000000T0000Z-090405T0000Z/
ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-
INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER
127 PM MDT SAT APR 4 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING. 

SNOW WILL CONTINUE TODAY ALONG WITH CONSIDERABLE BLOWING AND
DRIFTING SNOW CAUSED BY NORTHEAST WINDS OF 20 TO 35 MPH. TOTAL
SNOW ACCUMULATION IN WESTERN SWEETWATER COUNTY OF 2 TO 4 INCHES
IS EXPECTED BY THIS EVENING WITH LOCALLY HIGHER AMOUNTS IN THE
FAR WESTERN PART OF THE COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE
TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED
VISIBILITIES...AND USE CAUTION WHILE DRIVING.

&&

$$

WYZ007-050000-
/O.CON.KRIW.WW.Y.0022.000000T0000Z-090405T0000Z/
OWL CREEK AND BRIDGER MOUNTAINS-
127 PM MDT SAT APR 4 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING. 

SNOW AND NORTH WIND OF 25 TO 35 MPH WILL CONTINUE TODAY WITH
TOTAL SNOW ACCUMULATION IN THE OWL CREEK AND BRIDGER MOUNTAINS OF
6 TO 8 INCHES BY THIS EVENING. WIDESPREAD BLOWING AND DRIFTING
SNOW IS LIKELY TODAY AS WELL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE
TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED
VISIBILITIES...AND USE CAUTION WHILE DRIVING.

&&

$$

TEAM RIVERTON

000 
WWUS45 KRIW 042352
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
552 PM MDT SAT APR 4 2009

...THE WINTER STORM OVER NORTHERN...CENTRAL AND SOUTHERN WYOMING
HAS WEAKENED...

.THE WINTER STORM OVER NORTHERN...CENTRAL AND SOUTHERN WYOMING
HAS WEAKENED WITH THE MAIN STORM MOVING EAST. LIGHT SNOWFALL WILL
CONTINUE EARLY THIS EVENING...BUT ADDITIONAL SIGNIFICANT SNOWFALL
IS NO LONGER EXPECTED.

WYZ015-050100-
/O.EXP.KRIW.BZ.W.0003.000000T0000Z-090405T0000Z/
WIND RIVER MOUNTAINS EAST-
552 PM MDT SAT APR 4 2009

...BLIZZARD WARNING WILL EXPIRE AT 6 PM MDT THIS EVENING...

THE BLIZZARD WARNING WILL EXPIRE AT 6 PM MDT THIS EVENING. 

LIGHT SNOWFALL AND BRISK WINDS WILL OCCUR OVER THE WIND RIVER
MOUNTAINS THIS EVENING...BUT BLIZZARD CONDITIONS ARE NO LONGER 
EXPECTED.

$$

WYZ010-011-050100-
/O.EXP.KRIW.WS.W.0028.000000T0000Z-090405T0000Z/
NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY-
INCLUDING THE CITIES OF...BUFFALO...KAYCEE
552 PM MDT SAT APR 4 2009

...WINTER STORM WARNING WILL EXPIRE AT 6 PM MDT THIS EVENING...

THE WINTER STORM WARNING WILL EXPIRE AT 6 PM MDT THIS EVENING. 

LIGHT SNOWFALL AND BRISK WINDS WILL OCCUR OVER JOHNSON COUNTY THIS
EVENING...BUT WINTER STORM CONDITIONS ARE NO LONGER EXPECTED.

$$

WYZ009-050100-
/O.EXP.KRIW.WS.W.0028.000000T0000Z-090405T0000Z/
BIGHORN MOUNTAINS SOUTHEAST-
552 PM MDT SAT APR 4 2009

...WINTER STORM WARNING WILL EXPIRE AT 6 PM MDT THIS EVENING...

THE WINTER STORM WARNING WILL EXPIRE AT 6 PM MDT THIS EVENING. 

LIGHT SNOWFALL AND BRISK WINDS WILL OCCUR OVER THE BIGHORN MOUNTAINS
THIS EVENING...BUT WINTER STORM CONDITIONS ARE NO LONGER EXPECTED.

$$

WYZ030-050100-
/O.EXP.KRIW.WS.W.0028.000000T0000Z-090405T0000Z/
EAST SWEETWATER COUNTY-
INCLUDING THE CITY OF...WAMSUTTER
552 PM MDT SAT APR 4 2009

...WINTER STORM WARNING WILL EXPIRE AT 6 PM MDT THIS EVENING...

THE WINTER STORM WARNING WILL EXPIRE AT 6 PM MDT THIS EVENING. 

LIGHT SNOWFALL AND BRISK WINDS WILL OCCUR OVER SWEETWATER COUNTY THIS
EVENING...BUT WINTER STORM CONDITIONS ARE NO LONGER EXPECTED.

$$

WYZ008-050100-
/O.EXP.KRIW.WS.W.0028.000000T0000Z-090405T0000Z/
BIGHORN MOUNTAINS WEST-
552 PM MDT SAT APR 4 2009

...WINTER STORM WARNING WILL EXPIRE AT 6 PM MDT THIS EVENING...

THE WINTER STORM WARNING WILL EXPIRE AT 6 PM MDT THIS EVENING. 

LIGHT SNOWFALL AND BRISK WINDS WILL OCCUR OVER THE BIGHORN MOUNTAINS
THIS EVENING...BUT WINTER STORM CONDITIONS ARE NO LONGER EXPECTED.

$$

WYZ020-022-050100-
/O.EXP.KRIW.WS.W.0028.000000T0000Z-090405T0000Z/
NATRONA COUNTY LOWER ELEVATIONS-CASPER MOUNTAIN-
INCLUDING THE CITY OF...CASPER
552 PM MDT SAT APR 4 2009

...WINTER STORM WARNING WILL EXPIRE AT 6 PM MDT THIS EVENING...

THE WINTER STORM WARNING WILL EXPIRE AT 6 PM MDT THIS EVENING. 

LIGHT SNOWFALL AND BRISK WINDS WILL OCCUR OVER NATRONA COUNTY THIS
EVENING...BUT WINTER STORM CONDITIONS ARE NO LONGER EXPECTED.

$$

WYZ018-050100-
/O.EXP.KRIW.WS.W.0028.000000T0000Z-090405T0000Z/
LANDER FOOTHILLS-
INCLUDING THE CITY OF...LANDER
552 PM MDT SAT APR 4 2009

...WINTER STORM WARNING WILL EXPIRE AT 6 PM MDT THIS EVENING...

THE WINTER STORM WARNING WILL EXPIRE AT 6 PM MDT THIS EVENING. 

LIGHT SNOWFALL AND BRISK WINDS WILL OCCUR OVER FREMONT COUNTY THIS
EVENING...BUT WINTER STORM CONDITIONS ARE NO LONGER EXPECTED.

$$

WYZ019-050100-
/O.EXP.KRIW.WS.W.0028.000000T0000Z-090405T0000Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
INCLUDING THE CITY OF...JEFFREY CITY
552 PM MDT SAT APR 4 2009

...WINTER STORM WARNING WILL EXPIRE AT 6 PM MDT THIS EVENING...

THE WINTER STORM WARNING WILL EXPIRE AT 6 PM MDT THIS EVENING. 

LIGHT SNOWFALL AND BRISK WINDS WILL OCCUR OVER THE GREEN MOUNTAINS 
AND RATTLESNAKE RANGE THIS EVENING...BUT WINTER STORM CONDITIONS
ARE NO LONGER EXPECTED.

$$

WYZ017-050100-
/O.EXP.KRIW.WW.Y.0022.000000T0000Z-090405T0000Z/
WIND RIVER BASIN-
INCLUDING THE CITIES OF...RIVERTON...SHOSHONI
552 PM MDT SAT APR 4 2009

...WINTER WEATHER ADVISORY WILL EXPIRE AT 6 PM MDT THIS EVENING...

THE WINTER WEATHER ADVISORY WILL EXPIRE AT 6 PM MDT THIS EVENING.

LIGHT SNOWFALL AND BRISK WINDS WILL OCCUR OVER FREMONT COUNTY THIS
EVENING...BUT ADVERSE WINTER WEATHER CONDITIONS ARE NO LONGER EXPECTED.

$$

WYZ028-029-050100-
/O.EXP.KRIW.WW.Y.0022.000000T0000Z-090405T0000Z/
ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-
INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER
552 PM MDT SAT APR 4 2009

...WINTER WEATHER ADVISORY WILL EXPIRE AT 6 PM MDT THIS EVENING...

THE WINTER WEATHER ADVISORY WILL EXPIRE AT 6 PM MDT THIS EVENING.

LIGHT SNOWFALL AND BRISK WINDS WILL OCCUR OVER SWEETWATER COUNTY THIS
EVENING...BUT ADVERSE WINTER WEATHER CONDITIONS ARE NO LONGER
EXPECTED.

$$

WYZ007-050100-
/O.EXP.KRIW.WW.Y.0022.000000T0000Z-090405T0000Z/
OWL CREEK AND BRIDGER MOUNTAINS-
552 PM MDT SAT APR 4 2009

...WINTER WEATHER ADVISORY WILL EXPIRE AT 6 PM MDT THIS EVENING...

THE WINTER WEATHER ADVISORY WILL EXPIRE AT 6 PM MDT THIS EVENING.

LIGHT SNOWFALL AND BRISK WINDS WILL OCCUR OVER THE OWL CREEK AND 
BRIDGER MOUNTAINS THIS EVENING...BUT ADVERSE WINTER WEATHER
CONDITIONS ARE NO LONGER EXPECTED.

$$

C.BAKER

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RIVERTON WY
439 AM MDT SAT APR 4 2009

.SHORT TERM...TODAY THROUGH MONDAY NIGHT
THE STORM CENTER HAS ESTABLISHED ITSELF OVER CENTRAL COLORADO.
SNOWFALL WELL TO THE NORTH OF THE STORM CENTER IN NORTHERN WY IS
STRUGGLING WITH GEY AND WRL REPORTING CLEAR SKIES AND COD/U68 JUST
CLOUDY. CANCELED HILITES IN THE BIG HORN BASIN AS WELL AS THE
ABSAROKAS. DOWNGRADED THE OWL CREEK/BRIDGER MTNS TO AN ADVISORY.
EARLIER THIS EVENING WITH SIGNIFICANT BLOWING AND DRIFTING ANTICIPATED
FOR THE SOUTH END OF THE WIND RIVER CANYON. EARLIER THIS EVENING...CONVECTION
WAS PUTTING DOWN SOME FAIRLY SIGNIFICANT SNOWFALL ALONG HIGHWAY 26
FROM CROWHEART TO WEST OF DUBOIS. IT APPEARED THAT THE NORTHEAST
GRADIENT WIND WAS BEING CHANNELED AS AN EAST WIND THROUGH DUBOIS
WHICH WOULD SET THAT AREA UP FOR FURTHER UPSLOPE SNOWS THERE TODAY.
WENT AHEAD AND ISSUED A WINTER WEATHER ADVISORY FOR DUBOIS EARLIER
THIS EVENING. DUBOIS NOW HAS CALM WINDS WITH ONLY A SOLID MID DECK
OF CLOUDS AND THE SNOWFALL IS JUST NOT CATCHING ON THERE EITHER SO
WENT AHEAD AND CANCELED THE SHORT LIVED ADVISORY FOR DUBOIS.
AREAS TO THE SOUTH AND EAST OF THE AFOREMENTIONED AREAS STILL
APPEAR THAT THE POTENTIAL FOR A SIGNIFICANT SNOWFALL STILL EXISTS
TODAY. 10 INCHES OF SNOW APPEARS TO HAVE FALLEN SO FAR ON THE EAST
SLOPE OF THE BIG HORN MTNS ALONG WITH 8 TO 12 INCHES ON THE LOWER
EAST SLOPE OF THE WIND RIVER MTNS. A NORTHEAST WIND FAVORS
RIVERTON MORE THAN A NORTH WIND AND AS OF THIS MOMENT...SIGNIFICANT
SNOWFALL IS FALLING JUST A COUPLE OF MILES SOUTH AND EAST OF
RIVERTON. IF THE TRAJECTORY WAS JUST A HAIR MORE EASTERLY...MORE
OF THE WIND RIVER BASIN TO THE WEST WOULD SEE MORE SIGNIFICANT
SNOWFALL. LANDER HAS BEEN SNOWING FAIRLY STEADILY AS HAS CPR AND
BYG WHERE AN ESTIMATED 2 TO 4 INCHES HAS FALLEN. WILL KEEP ALL
OTHER HILITES GOING FOR NOW. NAM QPF STILL SUPPORTS PREDICTED SNOW
AMOUNTS GIVEN THE ISENTROPIC LIFT SLATED FOR SWEETWATER COUNTY
THIS MORNING AND THE Q VECTOR FORCING ACROSS THE SOUTH HALF OF
WYOMING TODAY.

AS THE VERTICALLY STACKED LOW EXITS TO THE EAST TOWARD THE CENTRAL
PLAINS LATER TODAY...CPR WILL BE THE LAST TO CLEAR OUT WITH
SOME ACCUMULATING SNOW PERSISTING THROUGH THE EVENING HOURS THERE.

A RIDGE OF HIGH PRESSURE WILL BUILD INTO THE AREA FROM THE WEST WITH
A GRADUAL WARM UP THROUGH TUESDAY. MANY LOWER ELEVATIONS EAST OF
THE DIVIDE WILL SEE MID 50S BY TUESDAY. THE NEXT UPSTREAM TROUGH
WILL GIVE THE WESTERN ZONES LOW POPS FOR TUESDAY NIGHT.

.LONG TERM...TUESDAY THROUGH SATURDAY
UPPER RIDGE OVER THE AREA ON TUE AND DRY WEATHER EXPECTED NOW
WITH WARMER HIGH TEMPS. THE NEXT UPPER LOW COMES ONSHORE IN
CALIFORNIA TUESDAY NIGHT. THE GFS IS FASTER WITH SPREADING
MOISTURE INTO THE WESTERN ZONES THAN THE ECMWF AT 12Z WED. HAVE
BACKED OFF PRECIP TO SLIGHT CHANCE TUE NIGHT IN THE WEST. GFS
TRACKS THE STORM SYSTEM ACROSS UTAH WED...THEN INTO COLORADO WED
NIGHT AND INTO SW KANSAS BY 12Z THU. THE ECMWF OPENS THE CLOSED
LOW WED NIGHT WITH ONE PIECE MOVING INTO WY AND THE SOUTHERN PIECE
HEADED TOWARD SOUTHERN COLORADO. WILL FOLLOW GFS TONIGHT AS ECMWF
SEEMS ODD. THE GFS IS LIKELY TOO FAST WITH THE UPPER LOW MOVEMENT
WED AND WED NIGHT SO I HAVE ADJUSTED PRECIP WED AND WED NIGHT. THE
SYSTEM WILL PULL OUT OF THE REGION THURSDAY WITH LINGERING PRECIP
POSSIBLE. SOME RIDGING FORECAST FOR THU NIGHT WHICH WOULD LEAD TO
MOSTLY DRY WEATHER. HAVE REDUCED PRECIP TO ISOLATED IN THE
MOUNTAINS THU NIGHT. FAIRLY BIG DIFFERENCES IN WEATHER PATTERN FRI
AND SAT WHEN COMPARING THE GFS AND ECMWF. GFS BRINGS A TROUGH INTO
THE WESTERN U.S. FRIDAY AND MOVES IT TOWARD THE ROCKIES SATURDAY.
THE ECMWF DROPS AN UPPER LOW ALONG THE CALIFORNIA COAST FRIDAY AND
TO BAJA CALIF ON SATURDAY. FOR NOW HAVE GONE WITH THE GFS AND HAVE
A CHANCE OF PRECIP IN THE WEST WITH A SLIGHT CHANCE EAST OF THE
DIVIDE. HIGH TEMPS WILL BE NEAR NORMAL TO SLIGHTLY BELOW NORMAL
WED THRU SATURDAY.

&&

.AVIATION...
A LARGE WINTER STORM SYSTEM OVER THE GREAT BASIN...NORTH AND CENTRAL
ROCKIES AND THE NORTHERN PLAINS WILL CONTINUE TO INTENSIFY ACROSS THE
WESTERN AND CENTRAL WYOMING PRODUCING WIDESPREAD SNOW WITH IFR
CEILINGS AND VISIBILITIES PRODUCING WIDESPREAD TERRAIN OBSCURATIONS.
WEST OF THE CONTINENTAL DIVIDE CONDITIONS WILL IMPROVE BY 18Z WITH
SOME SNOW SHOWERS OBSCURING THE HIGHER MOUNTAINS...WHILE IFR
CONDITIONS WILL CONTINUES EAST OF THE DIVIDE THROUGH 06Z.

&&

.FIRE WEATHER...
A SIGNIFICANT SNOWFALL IS EXPECTED TODAY ACROSS CENTRAL AND
SOUTHERN WYOMING AS WELL AS OVER THE BIG HORN MOUNTAINS AND THE
LOWER ELEVATIONS OF JOHNSON COUNTY. DRY WEATHER WITH A GRADUAL
WARM UP IS EXPECTED THROUGH TUESDAY. MORE UNSETTLED WEATHER IS
EXPECTED BY MID WEEK.

&&

.RIW WATCHES/WARNINGS/ADVISORIES...
WINTER STORM WARNING UNTIL 6 PM MDT THIS EVENING FOR WYZ010-011-
015-018>020-022-030.

WINTER WEATHER ADVISORY UNTIL 6 PM MDT THIS EVENING FOR WYZ017-
028-029.

WINTER STORM WARNING UNTIL NOON MDT TODAY FOR WYZ008-009.

WINTER WEATHER ADVISORY UNTIL NOON MDT TODAY FOR WYZ007.

&&

SHORT TERM...LIPSON
LONG TERM...AR
AVIATION...C.BAKER
FIRE WEATHER...LIPSON

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RIVERTON WY
534 AM MDT SAT APR 4 2009

WYZ001>020-022>030-051200-
ABSAROKA MOUNTAINS-BIGHORN MOUNTAINS SOUTHEAST-
BIGHORN MOUNTAINS WEST-CASPER MOUNTAIN-CODY FOOTHILLS-
EAST SWEETWATER COUNTY-FLAMING GORGE-
GREEN MOUNTAINS AND RATTLESNAKE RANGE-JACKSON HOLE-LANDER FOOTHILLS-
NATRONA COUNTY LOWER ELEVATIONS-NORTH BIG HORN BASIN-
NORTHEAST JOHNSON COUNTY-OWL CREEK AND BRIDGER MOUNTAINS-
ROCK SPRINGS AND GREEN RIVER-SALT RIVER AND WYOMING RANGES-
SOUTH LINCOLN COUNTY-SOUTHEAST BIG HORN BASIN-
SOUTHEAST JOHNSON COUNTY-SOUTHWEST BIG HORN BASIN-STAR VALLEY-
TETON AND GROS VENTRE MOUNTAINS-UPPER GREEN RIVER BASIN-
UPPER GREEN RIVER BASIN FOOTHILLS-UPPER WIND RIVER BASIN-
WIND RIVER BASIN-WIND RIVER MOUNTAINS EAST-WIND RIVER MOUNTAINS WEST-
YELLOWSTONE NATIONAL PARK-
534 AM MDT SAT APR 4 2009

...WINTER STORM WARNINGS ARE IN EFFECT FOR PARTS OF CENTRAL AND
SOUTHERN WYOMING TODAY...

...WINTER WEATHER ADVISORY IN EFFECT FOR THE WIND RIVER BASIN...
WESTERN SWEETWATER COUNTY AND THE OWL CREEK MOUNTAINS THROUGH
NOON TODAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING.

.DAY ONE...TODAY AND TONIGHT

SIGNIFICANT SNOWFALL WITH AREAS OF SNOW AND BLOWING SNOW ARE LIKELY
ACROSS UPSLOPE FAVORED AREAS OF CENTRAL WYOMING TODAY...ESPECIALLY
ALONG THE EAST SLOPES OF THE WIND RIVER MOUNTAINS AND FROM LANDER TO
CASPER AS WELL AS ALONG INTERSTATE 80 ACROSS EASTERN SWEETWATER
COUNTY.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

ANOTHER STORM SYSTEM MAY IMPACT THE AREA WEDNESDAY INTO WEDNESDAY
NIGHT. THIS SYSTEM APPEARS AT THIS TIME TO BE WARMER THAN THE
PREVIOUS STORMS TO TRACK THROUGH THE AREA.  PRECIPITATION WILL LIKELY
SPREAD INTO WESTERN WYOMING LATE TUESDAY NIGHT AND INTO CENTRAL
WYOMING WEDNESDAY. SNOW LEVELS ARE FORECAST TO BE NEAR 6000 FEET WITH
THIS STORM SO IT WILL PRIMARILY AFFECT MOUNTAIN PASSES WITH SNOW-
COVERED ROADS. STAY TUNED FOR THE LATEST FORECASTS FROM THE NATIONAL
WEATHER SERVICE IN RIVERTON DURING THIS VERY ACTIVE AND QUICKLY
CHANGING WEATHER PATTERN.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ENCOURAGED TO REPORT SNOWFALL AMOUNTS. THANK YOU

TEAM RIVERTON