High Wind Warning 4, NWS Riverton, WY

624 
WWUS75 KRIW 171802
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
1202 PM MDT SUN MAR 17 2013

...STRONG WINDS ACROSS MUCH OF WESTERN AND CENTRAL WYOMING FOR THE
REST OF THIS AFTERNOON THROUGH THIS EVENING...

.A VIGOROUS FAST MOVING PACIFIC STORM IS EXPECTED TO BRING HIGH
WINDS TO MUCH OF WESTERN AND CENTRAL WYOMING FOR THE REST OF THIS
AFTERNOON THROUGH THIS EVENING. WINDY PERIODS ARE EXPECTED TO
CONTINUE THROUGH MONDAY...BUT THE WIND SHOULD DROP BELOW CRITERIA
BY MIDNIGHT IN ALL AREAS.

WYZ027>030-180215-
/O.CON.KRIW.HW.W.0004.000000T0000Z-130318T0300Z/
SOUTH LINCOLN COUNTY-ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-
EAST SWEETWATER COUNTY-
INCLUDING THE CITIES OF...KEMMERER...COKEVILLE...ROCK SPRINGS...
GREEN RIVER...WAMSUTTER
1202 PM MDT SUN MAR 17 2013

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING. 

* SUMMARY AND TIMING...WEST WINDS WILL CONTINUE TO INCREASE TO
  SPEEDS AROUND 40 MPH WITH GUSTS TO 60 MPH BY 1230 PM. THE ROCK
  SPRINGS AIRPORT HAS ALREADY REPORTED A GUST OF 45 MPH ALONG
  WITH CONTINENTAL DIVIDE REPORTING A GUST OF 52 MPH. THESE WINDS
  ARE EXPECTED TO CONTINUE THROUGH 9 PM THIS EVENING.

* IMPACTS...DANGEROUS CROSS WINDS WILL OCCUR ON AREA HIGHWAYS...
  ESPECIALLY NORTH TO SOUTH ORIENTED ROADS. THESE WINDS COULD ALSO
  CAUSE DAMAGE TO UNSECURED OBJECTS LEFT OUTDOORS.

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS
OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ019-180215-
/O.CON.KRIW.HW.W.0004.000000T0000Z-130318T0300Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
INCLUDING THE CITY OF...JEFFREY CITY
1202 PM MDT SUN MAR 17 2013

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING. 

* SUMMARY AND TIMING...SOUTHWEST WINDS WILL CONTINUE TO INCREASE
  TO SPEEDS OF 40 MPH WITH GUSTS TO 65 MPH BY 1230 THROUGHOUT THE
  GREEN MOUNTAIN AND RATTLSNAKE RANGE. BEAVER RIM HAS ALREADY HAD
  A GUST OF 63 MPH ALONG WITH PATHFINDER REPORTING A GUST OF 60
  MPH. THESE WINDS ARE EXPECTED TO CONTINUE THROUGH 9 PM THIS
  EVENING.

* IMPACTS...DANGEROUS CROSS WINDS WILL OCCUR ON AREA HIGHWAYS
  INCLUDING HIGHWAY 287 THROUGH JEFFREY CITY. THESE WINDS COULD
  ALSO CAUSE DAMAGE TO UNSECURED OBJECTS LEFT OUTDOORS.

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS
OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ010-180215-
/O.CON.KRIW.HW.W.0004.000000T0000Z-130318T0300Z/
NORTHEAST JOHNSON COUNTY-
INCLUDING THE CITY OF...BUFFALO
1202 PM MDT SUN MAR 17 2013

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING. 

* SUMMARY AND TIMING...A COLD FRONT HAS SHIFTED THE WINDS FROM
  SOUTHWEST TO THE NORTHWEST. THESE NORTHWEST WINDS WILL THEN
  INCREASE TO SPEEDS AROUND 40 MPH...WITH GUSTS TO 60 MPH EARLY
  THIS AFTERNOON. THE AIRPORT AT BUFFALO HAS ALREADY REPORTED A
  WIND GUST OF 52 MPH. THE VERY STRONG WINDS ARE EXPECTED TO LAST
  THROUGH 9 PM THIS EVENING.

* IMPACTS...DANGEROUS CROSS WINDS WILL OCCUR ON AREA HIGHWAYS
  INCLUDING PORTIONS OF INTERSTATES 25 AND 90 THROUGHOUT NORTHERN
  JOHNSON COUNTY. THESE WINDS COULD ALSO CAUSE DAMAGE TO UNSECURED
  OBJECTS LEFT OUTDOORS.

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS
OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ016-017-180215-
/O.CON.KRIW.HW.W.0004.000000T0000Z-130318T0600Z/
UPPER WIND RIVER BASIN-WIND RIVER BASIN-
INCLUDING THE CITIES OF...DUBOIS...RIVERTON...SHOSHONI
1202 PM MDT SUN MAR 17 2013

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT.

* SUMMARY AND TIMING...NORTHWEST WINDS WILL CONTINUE TO INCREASE
  TO SPEEDS OF 40 MPH WITH GUSTS TO 60 MPH THIS AFTERNOON. THE
  RIVERTON REGIONAL AIRPORT HAS ALREADY REPORTED A GUST OF 53 MPH
  ALONG WITH 57 MPH BEING REPORTED AT CROWHEART. THESE WINDS ARE
  EXPECTED TO CONTINUE THROUGH MIDNIGHT.

* IMPACTS...DANGEROUS CROSS WINDS WILL OCCUR ON AREA HIGHWAYS...
  ESPECIALLY NORTH TO SOUTH ORIENTED ROADS INCLUDING PORTIONS OF
  HIGHWAY 26. THESE WINDS COULD ALSO CAUSE DAMAGE TO UNSECURED
  OBJECTS LEFT OUTDOORS.

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS
OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ018-172100-
/O.CON.KRIW.HW.W.0004.000000T0000Z-130317T2100Z/
LANDER FOOTHILLS-
INCLUDING THE CITY OF...LANDER
1202 PM MDT SUN MAR 17 2013

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 PM MDT THIS
AFTERNOON...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 PM MDT THIS
AFTERNOON. 

* SUMMARY AND TIMING...WEST WINDS OF 30 TO 40 MPH WITH GUSTS
  AROUND 60 MPH ARE EXPECTED TO CONTINUE THROUGH 3 PM THIS
  AFTERNOON. THE LANDER AIRPORT HAS ALREADY REPORTED A GUST OF 51
  MPH. A WIND GUST OF 58 MPH HAS ALREADY BEEN REPORTED ALONG THE
  NORTH FORK OF THE POPOGIE RIVER NORTHWEST OF LANDER,

* IMPACTS...DANGEROUS CROSS WINDS MAY OCCUR ON AREA HIGHWAYS... 
  ESPECIALLY NORTHWEST TO SOUTHEAST ORIENTED ROADS INCLUDING 
  HIGHWAY 28. THESE WINDS COULD ALSO CAUSE DAMAGE TO UNSECURED 
  OBJECTS LEFT OUTDOORS. 

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS
OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ020-180000-
/O.CON.KRIW.HW.W.0004.000000T0000Z-130318T0000Z/
NATRONA COUNTY LOWER ELEVATIONS-
INCLUDING THE CITY OF...CASPER
1202 PM MDT SUN MAR 17 2013

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

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

* SUMMARY AND TIMING...WEST SOUTHWEST WINDS WILL INCREASE TO
  SPEEDS AROUND 40 MPH WITH GUSTS TO 60 MPH BY 1230 PM THIS
  AFTERNOON. THE NATRONA COUNTY AIRPORT NEAR CASPER HAS ALREADY
  REPORTED A GUST OF 55 MPH. THE WINDS WILL GRADUALLY SHIFT TO A
  MORE WESTERLY DIRECTION. THE STRONGEST WINDS ARE EXPECTED TO
  OCCUR THROUGH 3 PM.

* IMPACTS...DANGEROUS CROSS WINDS WILL OCCUR ON AREA HIGHWAYS...
  ESPECIALLY NORTH TO SOUTH ORIENTED ROADS INCLUDING INTERSTATE
  25. HIGH PROFILE VEHICLES AND LIGHT TRAILER TRAFFIC ARE EXPECTED
  TO BE SEVERELY IMPACTED. THESE WINDS COULD ALSO CAUSE DAMAGE TO
  UNSECURED OBJECTS LEFT OUTDOORS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS
OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

LIPSON

658 
WWUS75 KRIW 172105
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
305 PM MDT SUN MAR 17 2013

...STRONG WINDS ACROSS MUCH OF WESTERN AND CENTRAL WYOMING FOR
THE REST OF THIS AFTERNOON THROUGH THIS EVENING...

.A VIGOROUS FAST MOVING PACIFIC STORM IS EXPECTED TO BRING HIGH
WINDS TO MUCH OF WESTERN AND CENTRAL WYOMING FOR THE REST OF THIS
AFTERNOON THROUGH THIS EVENING. WINDY PERIODS ARE EXPECTED TO
CONTINUE THROUGH MONDAY...BUT THE WIND SHOULD DROP BELOW CRITERIA
BY MIDNIGHT IN ALL AREAS.

WYZ018-172215-
/O.EXP.KRIW.HW.W.0004.000000T0000Z-130317T2100Z/
LANDER FOOTHILLS-
INCLUDING THE CITY OF...LANDER
305 PM MDT SUN MAR 17 2013

...HIGH WIND WARNING WILL EXPIRE AT 3 PM MDT THIS AFTERNOON...

THE HIGH WIND WARNING WILL EXPIRE AT 3 PM MDT THIS AFTERNOON. 

* SUMMARY AND TIMING...WEST WINDS WILL SHIFT TO THE NORTHWEST AT
  LESSER SPEEDS FOR THE REMAINDER OF THE AFTERNOON. THUS THE HIGH
  WIND WARNING HAS BEEN ALLOWED TO EXPIRE. HOWEVER...NORTHWEST
  WINDS OF 20 TO 30 MPH WITH SOME GUSTS OF 30 TO 40 MPH WILL
  CONTINUE FOR THE REST OF THE AFTERNOON.

* WINDS...A PEAK GUST OF 68 MPH FROM THE WEST WAS RECORDED AT 116
  PM AT THE LANDER AIRPORT. NORTHWEST WINDS OF 20 TO 30 MPH WITH
  SOME GUSTS OF 40 MPH IS EXPECTED FOR THE REMAINDER OF THE
  AFTERNOON.

$$

WYZ027>030-180300-
/O.CON.KRIW.HW.W.0004.000000T0000Z-130318T0300Z/
SOUTH LINCOLN COUNTY-ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-
EAST SWEETWATER COUNTY-
INCLUDING THE CITIES OF...KEMMERER...COKEVILLE...ROCK SPRINGS...
GREEN RIVER...WAMSUTTER
305 PM MDT SUN MAR 17 2013

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING. 

* SUMMARY AND TIMING...WEST WINDS WILL CONTINUE TO BLOW AT SPEEDS
  OF 40 MPH WITH GUSTS TO 60 MPH. THE ROCK SPRINGS AIRPORT
  REPORTED A GUST OF 59 MPH AT 111 MPH. THESE WINDS ARE EXPECTED
  TO CONTINUE THROUGH 9 PM THIS EVENING.

* IMPACTS...DANGEROUS CROSS WINDS WILL OCCUR ON AREA HIGHWAYS... 
  ESPECIALLY NORTH TO SOUTH ORIENTED ROADS. THESE WINDS COULD 
  ALSO CAUSE DAMAGE TO UNSECURED OBJECTS LEFT OUTDOORS. 

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS
OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ019-180300-
/O.CON.KRIW.HW.W.0004.000000T0000Z-130318T0300Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
INCLUDING THE CITY OF...JEFFREY CITY
305 PM MDT SUN MAR 17 2013

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING. 

* SUMMARY AND TIMING...WEST WINDS WILL CONTINUE TO BLOW AT SPEEDS
  OF 40 MPH WITH GUSTS TO 65 MPH THROUGH THE REST OF THE AFTERNOON
  AND EARLY EVENING. BEAVER RIM REPORTED A GUST OF 63 MPH ALONG
  WITH PATHFINDER REPORTING A GUST OF 60 MPH. THESE WINDS ARE
  EXPECTED TO CONTINUE THROUGH 9 PM THIS EVENING.

* IMPACTS...DANGEROUS CROSS WINDS WILL OCCUR ON AREA HIGHWAYS 
  INCLUDING HIGHWAY 287 THROUGH JEFFREY CITY. THESE WINDS COULD 
  ALSO CAUSE DAMAGE TO UNSECURED OBJECTS LEFT OUTDOORS. 

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS
OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ010-180300-
/O.CON.KRIW.HW.W.0004.000000T0000Z-130318T0300Z/
NORTHEAST JOHNSON COUNTY-
INCLUDING THE CITY OF...BUFFALO
305 PM MDT SUN MAR 17 2013

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING. 

* SUMMARY AND TIMING...A COLD FRONT HAS SHIFTED THE WINDS FROM
  SOUTHWEST TO THE NORTHWEST. THESE NORTHWEST WINDS WILL CONTINUE
  TO INCREASE TO SPEEDS OF AROUND 40 MPH...WITH GUSTS TO 60 MPH
  DURING THE REMAINDER OF THIS AFTERNOON AND EARLY EVENING. THE
  AIRPORT AT BUFFALO HAS ALREADY REPORTED A WIND GUST OF 52 MPH.
  THE VERY STRONG WINDS ARE EXPECTED TO LAST THROUGH 9 PM THIS
  EVENING. SOME SNOW SHOWERS WILL ACCOMPANY THESE WINDS.

* IMPACTS...DANGEROUS CROSS WINDS WILL OCCUR ON AREA HIGHWAYS 
  INCLUDING PORTIONS OF INTERSTATES 25 AND 90 THROUGHOUT 
  NORTHERN JOHNSON COUNTY. THESE WINDS COULD ALSO CAUSE DAMAGE 
  TO UNSECURED OBJECTS LEFT OUTDOORS. 

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS
OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ016-017-180515-
/O.CON.KRIW.HW.W.0004.000000T0000Z-130318T0600Z/
UPPER WIND RIVER BASIN-WIND RIVER BASIN-
INCLUDING THE CITIES OF...DUBOIS...RIVERTON...SHOSHONI
305 PM MDT SUN MAR 17 2013

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT.

* SUMMARY AND TIMING...NORTHWEST WINDS WILL CONTINUE TO INCREASE
  TO SPEEDS OF 40 TO 50 MPH WITH GUSTS OF 60 TO 70 MPH DURING THE
  REMAINDER OF THIS AFTERNOON AND EVENING. THE RIVERTON REGIONAL
  AIRPORT HAS ALREADY REPORTED A GUST OF 53 MPH ALONG WITH 57 MPH
  BEING REPORTED AT CROWHEART. THESE WINDS ARE EXPECTED TO
  INCREASE SIGNIFICANTLY BY 4 PM AND WILL CONTINUE THROUGH
  MIDNIGHT.

* IMPACTS...DANGEROUS CROSS WINDS WILL OCCUR ON AREA HIGHWAYS... 
  ESPECIALLY NORTH TO SOUTH ORIENTED ROADS INCLUDING PORTIONS OF 
  HIGHWAY 26. THESE WINDS COULD ALSO CAUSE DAMAGE TO UNSECURED 
  OBJECTS LEFT OUTDOORS. 

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS
OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ020-180000-
/O.CON.KRIW.HW.W.0004.000000T0000Z-130318T0000Z/
NATRONA COUNTY LOWER ELEVATIONS-
INCLUDING THE CITY OF...CASPER
305 PM MDT SUN MAR 17 2013

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

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

* SUMMARY AND TIMING...WEST SOUTHWEST WINDS WILL CONTINUE AT
  SPEEDS OF 40 MPH WITH GUSTS TO 60 MPH THIS AFTERNOON. THE
  NATRONA COUNTY AIRPORT NEAR CASPER HAS ALREADY REPORTED A GUST
  OF 56 MPH. THE WINDS WILL GRADUALLY SHIFT TO A MORE WESTERLY
  DIRECTION. THESE WINDS WILL CONTINUE THROUGH 9 PM THIS EVENING.

* IMPACTS...DANGEROUS CROSS WINDS WILL OCCUR ON AREA HIGHWAYS... 
  ESPECIALLY NORTH TO SOUTH ORIENTED ROADS INCLUDING INTERSTATE 
  25. HIGH PROFILE VEHICLES AND LIGHT TRAILER TRAFFIC ARE 
  EXPECTED TO BE SEVERELY IMPACTED. THESE WINDS COULD ALSO CAUSE 
  DAMAGE TO UNSECURED OBJECTS LEFT OUTDOORS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS
OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

LIPSON

330 
WWUS75 KRIW 172356
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
556 PM MDT SUN MAR 17 2013

...STRONG WINDS WILL CONTINUE ACROSS MUCH OF WESTERN AND CENTRAL
WYOMING THROUGH THIS EVENING...

.A VIGOROUS FAST MOVING PACIFIC STORM WILL CONTINUE TO BRING HIGH WINDS
TO A LARGE PORTION OF THE REGION EARLY THIS EVENING WITH WINDS GRADUALLY
WEAKENING AS THE EVENING PROGRESSES WITH HIGH WINDS ENDING IN MOST AREAS
BETWEEN 9 PM AND MIDNIGHT. HOWEVER...WINDY CONDITIONS ARE EXPECTED
AGAIN ON MONDAY.

WYZ020-180100-
/O.EXP.KRIW.HW.W.0004.000000T0000Z-130318T0000Z/
NATRONA COUNTY LOWER ELEVATIONS-
INCLUDING THE CITY OF...CASPER
556 PM MDT SUN MAR 17 2013

...HIGH WIND WARNING WILL EXPIRE AT 6 PM MDT THIS EVENING...

THE HIGH WIND WARNING WILL EXPIRE AT 6 PM MDT THIS EVENING. CASPER
AIRPORT HAD A PEAK WIND OF 58 MPH AT 429 PM THIS AFTERNOON. WINDS
HAVE SHIFTED MORE NORTHERLY IN WAKE OF CANADIAN COLD FRONT AND
HIGH WINDS ARE NO LONGER EXPECTED.

$$

WYZ027>030-180300-
/O.CON.KRIW.HW.W.0004.000000T0000Z-130318T0300Z/
SOUTH LINCOLN COUNTY-ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-
EAST SWEETWATER COUNTY-
INCLUDING THE CITIES OF...KEMMERER...COKEVILLE...ROCK SPRINGS...
GREEN RIVER...WAMSUTTER
556 PM MDT SUN MAR 17 2013

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING. 

* SUMMARY AND TIMING...WEST WINDS WILL CONTINUE TO BLOW AT SPEEDS
  OF 40 MPH WITH GUSTS TO 60 MPH. THE ROCK SPRINGS AIRPORT
  RECORDED A GUST OF 69 MPH AT 302 PM...WHILE THE KEMMERER AIRPORT
  RECORDED A WIND GUST OF 58 MPH AT 2 PM. 

* IMPACTS...DANGEROUS CROSS WINDS WILL OCCUR ON AREA HIGHWAYS... 
  ESPECIALLY NORTH TO SOUTH ORIENTED ROADS. THESE WINDS COULD 
  ALSO CAUSE DAMAGE TO UNSECURED OBJECTS LEFT OUTDOORS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS
OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ019-180300-
/O.CON.KRIW.HW.W.0004.000000T0000Z-130318T0300Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
INCLUDING THE CITY OF...JEFFREY CITY
556 PM MDT SUN MAR 17 2013

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING. 

* SUMMARY AND TIMING...WEST WINDS WILL CONTINUE TO BLOW AT SPEEDS
  OF 40 MPH WITH GUSTS TO 65 MPH THROUGH THE REST OF THE EVENING.
  BEAVER RIM REPORTED A GUST OF 63 MPH ALONG WITH PATHFINDER
  REPORTING A GUST OF 60 MPH. 

* IMPACTS...DANGEROUS CROSS WINDS WILL OCCUR ON AREA HIGHWAYS 
  INCLUDING HIGHWAY 287 THROUGH JEFFREY CITY. THESE WINDS COULD 
  ALSO CAUSE DAMAGE TO UNSECURED OBJECTS LEFT OUTDOORS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS
OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ010-180300-
/O.CON.KRIW.HW.W.0004.000000T0000Z-130318T0300Z/
NORTHEAST JOHNSON COUNTY-
INCLUDING THE CITY OF...BUFFALO
556 PM MDT SUN MAR 17 2013

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING. 

* SUMMARY AND TIMING...NORTHWEST WINDS WILL CONTINUE BETWEEN 30
  AND 40 MPH...WITH OCCASIONAL GUSTS NEAR 60 MPH FOR THE REMAINDER
  OF THE EVENING. THE AIRPORT AT BUFFALO HAS ALREADY REPORTED A
  WIND GUST OF 54 MPH AT 221 PM AND 355 PM.

* IMPACTS...DANGEROUS CROSS WINDS WILL OCCUR ON AREA HIGHWAYS 
  INCLUDING PORTIONS OF INTERSTATES 25 AND 90 THROUGHOUT 
  NORTHERN JOHNSON COUNTY. THESE WINDS COULD ALSO CAUSE DAMAGE 
  TO UNSECURED OBJECTS LEFT OUTDOORS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS
OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ016-017-180600-
/O.CON.KRIW.HW.W.0004.000000T0000Z-130318T0600Z/
UPPER WIND RIVER BASIN-WIND RIVER BASIN-
INCLUDING THE CITIES OF...DUBOIS...RIVERTON...SHOSHONI
556 PM MDT SUN MAR 17 2013

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT.

* SUMMARY AND TIMING...NORTHWEST WINDS BETWEEN 30 AND 40
  MPH...WITH OCCASIONAL GUSTS NEAR 60 MPH WILL CONTINUE THROUGH
  THE EVENING ACROSS MUCH OF THE WIND RIVER BASIN. THE RIVERTON
  AIRPORT RECORDED A GUST OF 54 MPH AT 203 PM.

* IMPACTS...DANGEROUS CROSS WINDS WILL OCCUR ON AREA HIGHWAYS... 
  ESPECIALLY NORTH TO SOUTH ORIENTED ROADS INCLUDING PORTIONS OF 
  HIGHWAY 26. THESE WINDS COULD ALSO CAUSE DAMAGE TO UNSECURED 
  OBJECTS LEFT OUTDOORS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS
OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

TEAM RIVERTON/21

434 
WWUS75 KRIW 180201
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
801 PM MDT SUN MAR 17 2013

WYZ010-019-027>030-180315-
/O.CAN.KRIW.HW.W.0004.000000T0000Z-130318T0300Z/
NORTHEAST JOHNSON COUNTY-GREEN MOUNTAINS AND RATTLESNAKE RANGE-
SOUTH LINCOLN COUNTY-ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-
EAST SWEETWATER COUNTY-
INCLUDING THE CITIES OF...BUFFALO...JEFFREY CITY...KEMMERER...
COKEVILLE...ROCK SPRINGS...GREEN RIVER...WAMSUTTER
801 PM MDT SUN MAR 17 2013

...HIGH WIND WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELLED THE HIGH
WIND WARNING. THE DAMAGING WINDS EARLIER THIS AFTERNOON ACROSS
SWEETWATER COUNTY AND OTHER AREAS HAVE DIMINISHED...AND ARE NO LONGER
EXPECTED TO REACH HIGH WIND CRITERIA. HOWEVER...BREEZY TO WINDY
WESTERLY WINDS WILL CONTINUE TONIGHT.

$$

WYZ016-017-180315-
/O.CAN.KRIW.HW.W.0004.000000T0000Z-130318T0600Z/
UPPER WIND RIVER BASIN-WIND RIVER BASIN-
INCLUDING THE CITIES OF...DUBOIS...RIVERTON...SHOSHONI
801 PM MDT SUN MAR 17 2013

...HIGH WIND WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELLED THE HIGH
WIND WARNING. THE STRONG WINDS EARLIER THIS AFTERNOON HAVE
WEAKENED AND ARE NO LONGER EXPECTED TO REACH HIGH WIND CRITERIA.

$$

21

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RIVERTON WY
1130 PM MDT SAT MAR 16 2013

.UPDATE...

UPDATED FOR THE 06Z AVIATION DISCUSSION.

UPDATE...

HAVE EXTENDED WINTER WEATHER ADVISORIES FOR THE NORTHWEST UNTIL 6
PM. THE HEAVIEST SNOWFALL IS EXPECTED TO OCCUR BETWEEN 3 AM AND 9
AM SUNDAY MORNING. HOWEVER...WEAK INSTABILITY/STRONG LAPSE RATES
SHOULD KEEP AT LEAST SCATTERED TO LOCALLY NUMEROUS SNOW SHOWERS
CONTINUING THROUGH THE AFTERNOON ACROSS THE NORTHWEST WITH
POTENTIAL FOR SOME DECENT SNOW FALL RATES. THIS COMBINED WITH
WINDY CONDITIONS FROM THIS STORMS SYSTEM SHOULD KEEP WINTRY/HAZARDOUS
TRAVEL CONDITIONS THROUGH SUNDAY AFTERNOON. THUS HAVE ELECTED TO
EXTEND THE WINTER WEATHER ADVISORY THROUGH 6 PM...ALSO MATCHING
THE END TIME OF THE WINTER STORM WARNING FOR THE WIND RIVER
MOUNTAINS.

STAR VALLEY AND THE SALT RIVER AND WYOMING RANGES WILL NEED TO BE
WATCHED FOR POSSIBLE INCLUSION INTO THE ADVISORY...BUT WILL LET
THE OVERNIGHT SHIFT GIVE IT ANOTHER LOOK BEFORE DECIDING.

WILL KEEP MULTIPLE HIGH WIND WATCHES GOING ACROSS
CENTRAL/SOUTHWEST WYOMING...WITH MUCH IF NOT ALL OF THEM PROBABLY
BEING UPGRADED TO WARNINGS ON THE EARLY MORNING PACKAGE.

WSW HAS BEEN SENT...NEW GRIDS AND OTHER PRODUCTS WILL BE SENT OUT
SHORTLY.

&&

.PREV DISCUSSION... /ISSUED 559 PM MDT SAT MAR 16 2013/

UPDATE...

QUICK UPDATE TO ADD SOME ISOLATED CONVECTION THROUGH 02Z IN THE
BIG HORN BASIN EAST ACROSS JOHNSON AND NORTHERN JOHNSON COUNTY.
RADAR SHOWS WEAK ACROSS WASHAKIE COUNTY PUSHING EAST. THIS
ACTIVITY WILL CONTINUE TO DECAY WITH LOSS OF DAYTIME HEATING.

PREV DISCUSSION... /ISSUED 449 PM MDT SAT MAR 16 2013/

SHORT TERM...TONIGHT THROUGH SUNDAY

A LONE STRONG THUNDERSTORM FOR THE MIDDLE OF MARCH POPPED UP
SOUTHEAST OF CODY THIS AFTERNOON AND AT THE TIME OF THIS WRITING
IS TRACKING SOUTHEAST ACROSS EXTREME SOUTHWEST BIG HORN COUNTY.

NEXT THE ATTENTION FOCUSES ON A VIGOROUS SHORTWAVE NOW MAKING
LANDFALL ONTO THE PACIFIC NORTHWEST. THIS FEATURE WILL REMAIN AN
OPEN WAVE WITH THE TROUGH AXIS TRACKING EAST ACROSS WYOMING SUNDAY
MORNING. A QUICK SHOT OF SNOWFALL CAN BE EXPECTED WITH THIS
FEATURE...ESPECIALLY IN WESTERN WYOMING WITH THE APEX OF THE
SNOWFALL EXPECTED BETWEEN 03Z AND 15Z SUNDAY DURING WHICH TIME THE
INFLUENCES OF THE STRONG WESTERLY DIFLUENT FLOW AND LEFT FRONT QUAD
JET DYNAMICS OF THE JET ON THE WEST SIDE OF THE TROUGH WILL BE
REALIZED. WINTER WEATHER ADVISORIES HAVE BEEN POSTED FOR NORTHWEST
WYOMING FOR LATE TONIGHT AND SUNDAY MORNING. IN ADDITION...THIS
WEATHER FEATURE WILL BE PACKING VERY STRONG GRADIENT WINDS. A
STRONG GRADIENT IS EXPECTED AT THE SURFACE AND AT 700MB. MOS
GUIDANCE IS SUGGESTING 30 PLUS WINDS AT MANY TERMINAL SITES.
STRONG PREFRONTAL AND FRONTAL WINDS ARE EXPECTED IN THE LANDER
FOOTHILLS FOR LATE SUNDAY MORNING THROUGH EARLY AFTERNOON AS WILL
THE EAST SLOPE OF THE WIND RIVER MOUNTAINS INCLUDING SOUTH PASS
WHERE THERE IS A WINTER STORM WARNING IN EFFECT AS A STRONG
PACIFIC COLD FRONT PLOWS ACROSS WYOMING. THEN POST FRONTAL MAINLY
WEST AND NORTHWEST WINDS WILL ENSUE ACROSS THE WIND RIVER BASIN
INCLUDING CROWHEART AND DUBOIS AS WELL AS THE GREEN
MOUNTAINS...SWEETWATER COUNTY AND SOUTHERN LINCOLN COUNTY. IN
FACT...SOUTHERN LINCOLN COUNTY AND SWEETWATER COUNTY SHOULD
EXPERIENCE A STRONG SNOW SQUALL WITH THE FRONT THAT SHOULD LAY
DOWN AN INCH OR LESS OF SNOW BEFORE THE STRONGEST WEST WINDS KICK
IN TO THOSE AREAS SUNDAY AFTERNOON WITH THE BRUNT OF THE 700MB
COLDER AIR NOSING INTO SOUTHERN WYOMING. JOHNSON COUNTY WILL ALSO
EXPERIENCE STRONG POST FRONTAL NORTHWEST WINDS AS 8MB TO 9MB 3
HOURLY SURFACE PRESSURE RISES TAKE PLACE BEHIND THE FRONT SUNDAY
AFTERNOON ALONG WITH A DRIVING COLD RAIN. A SECONDARY CANADIAN
COLD FRONT WILL PUSH SOUTHWEST INTO NORTHEAST WYOMING INCLUDING
JOHNSON COUNTY BY LATE SUNDAY BEFORE STALLING.

LONG TERM...SUNDAY NIGHT THROUGH SATURDAY

TAIL END OF OUR VIGOROUS SHORTWAVE WILL CONTINUE TO IMPACT THE
REGION INTO SUNDAY EVENING WITH SOME LIGHT MOUNTAIN SNOW AND BLOWING
SNOW AND STRONG WIND...ESPECIALLY IN FAVORED NW FLOW AREAS.
INCREASED THE WINDS FROM DUBOIS TO RIVERTON THROUGH 06Z MONDAY AS
OUR HIGH WIND WATCH WILL RUN INTO THIS PERIOD. COLD...MODERATELY
MOIST NW FLOW WILL PREVAIL IN BETWEEN SYSTEMS WITH SOME LIGHT
MOUNTAIN SNOW AND BLOWING SNOW CONTINUING AHEAD OF OUR LATE
MONDAY...MONDAY NIGHT SYSTEM. MORE STRONG WINDS WITH THIS SYSTEM
WITH FAVORED NW FLOW AREAS LIKE DUBOIS TO RIVERTON FLIRTING WITH
HIGH WINDS AGAIN. VERY COLD MID MARCH SYSTEM AND HAVE LOWERED
TEMPERATURES QUITE A BIT...ESPECIALLY MONDAY NIGHT AND TUESDAY.
RIDGE DOES BUILD IN LATE TUESDAY BUT SURFACE HIGH WILL LIKELY KEEP
COLD FRONT LINGERING IN THE NRN AND ERN ZONES. SOME MODERATION IN
HIGHS IN THE SWRN HALF OF THE AREA.

TUESDAY NIGHT THROUGH SATURDAY NIGHT
BRIEF SHORTWAVE RIDGE TUESDAY NIGHT WEDNESDAY MORNING AHEAD OF OUR
NEXT COUPLE SHORTWAVES. THE SRN SYSTEM IS NORTH OF HAWAII WHILE THE
COLD SYSTEM IS PASSING EAST OF KAMCHATKA. THE SRN SYSTEM MAY BRING A
GLANCING BLOW TO THE SW LATE WEDNESDAY BUT THE COLDER NRN SYSTEM
WILL LIKELY BE THE HIGHER IMPACT SYSTEM FOR WEDNESDAY NIGHT AND
THURSDAY. THE SYSTEM IS LOOKING LIKE IT WILL BE WEAKENING AND
SHEARING OVER US BUT IT LOOKS LIKE THERE WILL BE ENOUGH COLD AIR AND
INSTABILITY ALONG WITH POTENTIAL MID LEVEL CIRCULATION TO CAUSE
WIDESPREAD MOUNTAIN SNOWFALL AND A DECENT SHOT OF SNOW FOR THE LOWER
ELEVATIONS ALONG ITS PATH. BRISK NW FLOW BEHIND THIS SYSTEM THROUGH
FRIDAY WITH GRADUALLY BUILDING HEIGHTS...ESPECIALLY LATER FRIDAY
THROUGH SATURDAY WITH MODERATING TEMPERATURES. WILL HAVE TO WATCH
ANOTHER POTENTIAL SHORTWAVE IN THE FLOW AROUND FRIDAY NIGHT.

AVIATION.../06Z ISSUANCE/

QUICKLY DETERIORATING CONDITIONS ACROSS THE WEST THROUGH 09Z...AS A
STRONG STORM SYSTEM BEGINS TO IMPACT THE COWBOY STATE.

A QUICK MOVING STORM SYSTEM WILL RESULT IN EXTREMELY WINDY
CONDITIONS ACROSS THE ENTIRE REGION SUNDAY...WITH WIDESPREAD
MOUNTAIN TURBULENCE ESPECIALLY ON THE LEE SIDE OF MOUNTAIN RANGES.
ALSO LOW LEVEL WIND SHEAR WILL BE PRESENT...ESPECIALLY SUNDAY
MORNING AT KCOD AND KLND...BEFORE THE STRONGER WINDS MIX DOWN. WINDS
WILL WEAKEN TONIGHT...BUT STILL REMAIN BREEZY TO WINDY OVERNIGHT.

WEST OF THE DIVIDE...A PERIOD OR TWO OF MODERATE TO HEAVY SNOW IS
EXPECTED TO MOVE ACROSS WEST/NORTHWEST WYOMING BETWEEN 08Z AND 15Z
AS THE BAROCLINIC ZONE PUSHES EAST ACROSS WESTERN WYOMING EARLY THIS
MORNING. THE MOST WIDESPREAD AND HEAVIEST SNOW IS EXPECTED THROUGH
ABOUT 15Z...BUT MODERATE TO HEAVY SNOW SHOWERS WILL CONTINUE ACROSS
THE WESTERN MOUNTAINS THROUGH THE DAY. MOUNTAIN PASSES SHOULD BE
OBSCURED SUNDAY IN LIFR CONDITIONS WITH SNOW...BLOWING SNOW AND LOW
CEILINGS. THE MOST IMPACTED TERMINAL WILL ONCE AGAIN BE AT KJAC WITH
IFR/MVFR CONDITIONS LIKELY THROUGH AROUND 14Z...WITH MAINLY MVFR
CONDITIONS/BRIEF IFR CONDITIONS THROUGH THE REST OF TH DAY. FARTHER
SOUTH ACROSS THE UPPER GREEN RIVER BASIN AND SWEETWATER COUNTY...A
BRIEF HOUR OR TWO OF IFR/MVFR CONDITIONS ARE POSSIBLE THIS MORNING.

EAST OF THE DIVIDE...LOW CEILINGS AND FOG ALONG THE EXTREME EASTERN
PORTIONS OF NATRONA AND JOHNSON COUNTIES COULD IMPACT KBYG AND KCPR
THROUGH ABOUT 08Z...BEFORE THE FLOW VEERS TO THE SOUTHWEST AND DRIER
AIR WORKS INTO THE REGION...AS A LEE TROUGH BEGINS TO DEVELOP IN
RESPONSE TO AN APPROACHING STORM SYSTEM. THIS STORM SYSTEM AND
ASSOCIATED COLD FRONT WILL PUSH ACROSS AREAS EAST OF THE DIVIDE
SUNDAY. SNOW SHOWERS WILL BE LESS CONCENTRATED THAN WEST OF THE
DIVIDE ESPECIALLY IN THE LOWER ELEVATIONS FOR THIS SYSTEM...BUT
ENOUGH COVERAGE TO WARRANT VCSH ACROSS THE NORTH AND EAST. AN
ISOLATED LIGHTNING STRIKE OR TWO IS ALSO POSSIBLE AS THIS SYSTEM
PUSHES ACROSS THE REGION. MOUNTAINS PASSES ESPECIALLY ALONG THE
DIVIDE WILL BE VERY TURBULENT WITH MAINLY LIFR CONDITIONS IN
SNOW...BLOWING SNOW AND LOW CEILINGS. WILL NOT PREVAIL/TEMPO ANY TAF
SITE EAST OF THE DIVIDE WITH MVFR/IFR CONDITIONS...BUT BRIEF PERIODS
ARE POSSIBLE.

PLEASE SEE THE AVIATION WEATHER CENTER FOR THE LATEST INFORMATION ON
THE LATEST ICING AND TURBULENCE STATEMENTS...ON THIS STRONG STORM
SYSTEM.

FIRE WEATHER...

A SIGNIFICANT SNOW AND WIND EVENT IS EXPECTED LATE TONIGHT AND
SUNDAY MORNING IN NORTHWEST WYOMING AND IN THE WIND RIVER
MOUNTAINS. VERY STRONG SOUTHWEST WINDS ARE POSSIBLE IN THE LANDER
FOOTHILLS LATE SUNDAY MORNING AND EARLY AFTERNOON. VERY STRONG
NORTHWEST WINDS ARE EXPECTED IN SOUTHERN LINCOLN
COUNTY...SWEETWATER COUNTY...THE WIND RIVER BASIN INCLUDING
DUBOIS...THE GREEN MOUNTAINS AND NORTHERN JOHNSON COUNTY SUNDAY
AFTERNOON AND EVENING. LESS WINDY BUT STILL WINDY CONDITIONS ARE
EXPECTED ELSEWHERE SUNDAY. TEMPERATURES WILL BE COOLER SUNDAY. THE
MINIMUM RELATIVE HUMIDITY WILL ONLY BE IN THE LOW TEENS TO THE LEE
OF THE WIND RIVER MOUNTAINS SUNDAY AFTERNOON.

&&

.RIW WATCHES/WARNINGS/ADVISORIES...
HIGH WIND WATCH FROM SUNDAY AFTERNOON THROUGH SUNDAY EVENING
WYZ010-019-027>030.

HIGH WIND WATCH FROM SUNDAY MORNING THROUGH SUNDAY AFTERNOON
WYZ018.

WINTER WEATHER ADVISORY FROM MIDNIGHT TONIGHT TO 6 PM MDT SUNDAY
WYZ001-002-012-013.

HIGH WIND WATCH FROM SUNDAY MORNING THROUGH SUNDAY EVENING
WYZ016-017.

WINTER STORM WARNING FROM MIDNIGHT TONIGHT TO 6 PM MDT SUNDAY
WYZ014-015.

&&

UPDATE...WM
SHORT TERM...LIPSON
LONG TERM...SKRBAC
AVIATION...WM
FIRE WEATHER...LIPSON

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RIVERTON WY
845 PM MDT SAT MAR 16 2013

WYZ001>020-022>030-171200-
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-
845 PM MDT SAT MAR 16 2013

...WINTER STORM WARNING FOR THE WIND RIVER MOUNTAINS FROM MIDNIGHT
THROUGH 6 PM SUNDAY...

...WINTER WEATHER ADVISORY FOR THE NORTHWESTERN MOUNTAINS FROM
MIDNIGHT THROUGH 6 PM SUNDAY...

...HIGH WIND WATCH FOR MUCH OF CENTRAL WYOMING SUNDAY INTO SUNDAY
EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING.

.DAY ONE...TONIGHT

SNOW AND STRONG WIND WILL DEVELOP OVER THE WESTERN MOUNTAINS LATE
TONIGHT AND SPREAD TO THE LOWER ELEVATIONS OF THE FAR WEST.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

SUNDAY AND SUNDAY NIGHT...VERY WINDY ACROSS MUCH OF THE STATE WITH
GUSTS OVER 50 MPH POSSIBLE ACROSS MANY LOWER ELEVATION AREAS.
EVEN STRONGER WINDS WITH GUSTS OVER 60 MPH ARE QUITE POSSIBLE FROM
DUBOIS TO RIVERTON...SOUTH TO LANDER...THE GREEN MOUNTAINS AND
RATTLESNAKE RANGE AND ACROSS SWEETWATER COUNTY.

SIGNIFICANT SNOWFALL IS EXPECTED IN THE NORTHERN AND WESTERN
MOUNTAINS WITH A FEW INCHES OF SNOW POSSIBLE ACROSS THE NORTHERN
BASINS AND ALONG THE INTERSTATE 25 CORRIDOR. TRAVEL COULD BECOME
HAZARDOUS...ESPECIALLY OVER HIGHER ELEVATION PASSES INCLUDING SOUTH
PASS AND ALONG NORTH-SOUTH ORIENTED ROADWAYS.

CHECK THE VARIOUS WINTER WEATHER AND HIGH WIND STATEMENTS FOR
FURTHER DETAILS.

WEDNESDAY AND THURSDAY...INCREASING SNOWFALL IN THE WEST
WEDNESDAY AND WEDNESDAY NIGHT.  TURNING COLDER WITH RAIN AND SNOW
SHOWERS...AND POSSIBLY A THUNDERSTORM OR TWO...DEVELOPING ACROSS
CENTRAL WYOMING ON THURSDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ENCOURAGED TO REPORT PRECIPITATION AMOUNTS AND WIND
SPEEDS TONIGHT THROUGH SUNDAY. THANK YOU.

TEAM RIVERTON