Alert archive / Wyoming / High Wind Warnings in 2009

High Wind Warning 3, NWS Riverton, WY

January 6, 20095 counties in Wyoming

NWS Riverton, WY issued this high wind warning at Jan 6, 2009, 9:32 PM MST for 5 counties in Wyoming. It took effect at Jan 7, 2009, 12:00 AM MST. It was in force for 22 hr. 9 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jan 6, 2009, 9:32 PM MST (04:32 UTC)
In effect from
Jan 7, 2009, 12:00 AM MST
Expired
Jan 7, 2009, 9:49 PM MST
In force
22 hr
Issued by
NWS Riverton, WY

Counties Fremont County, WY, Hot Springs County, WY, Natrona County, WY, Park County, WY, Sweetwater County, WY

The radar

The Riverton/Lander radar (KRIW), 13 km from the middle of the area, began a volume at 04:36 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Jan 7, 4:50 AM MSTNON-TSTM WND GST 667 Wsw Muddy Gap, WY
Jan 7, 6:50 AM MSTNON-TSTM WND GST 737 Wsw Muddy Gap, WY
Jan 7, 7:50 AM MSTNON-TSTM WND GST 717 Wsw Muddy Gap, WY
Jan 7, 8:50 AM MSTNON-TSTM WND GST 707 Wsw Muddy Gap, WY
Jan 7, 10:55 AM MSTNON-TSTM WND GST 687 Wsw Muddy Gap, WY
Jan 7, 1:48 PM MSTHEAVY SNOW 13Cody 56 Sw, WYYOUNTS PEAK SNOTEL
Jan 7, 7:44 PM MSTSNOW 0.2Dubois, WY
Jan 7, 7:44 PM MSTSNOW 4Crandall Creek, WY
Jan 7, 8:14 PM MSTHEAVY SNOW 9Brooks Lake Lodge, WY

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Riverton, WY (KRIW), launched 00:00Z, 4.5 hours before the alert went out and 13 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Riverton, WY at 00:00Z on 2009-01-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Riverton, WY at 00:00Z on 2009-01-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 110 square meters per square second.1939587897117136156Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2449 m above ground
0-6 km bulk shear
98 kt
0-1 km storm-relative helicity
110 m²/s²
0-3 km storm-relative helicity
182 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WWUS75 KRIW 070432
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
932 PM MST TUE JAN 6 2009

...HIGH WIND IN THE ABSAROKA MOUNTAINS...GREEN MOUNTAINS AND
RATTLESNAKE RANGE AREAS LATE TONIGHT AND WEDNESDAY...

.A VERY STRONG NORTHWEST FLOW ALOFT WILL COMBINE WITH A STRONG
SOUTHWESTERLY SURFACE PRESSURE GRADIENT TO PRODUCE HIGH WINDS OVER
PORTIONS OF NORTHERN AND CENTRAL WYOMING TONIGHT AND WEDNESDAY.

WYZ019-071245-
/O.UPG.KRIW.HW.A.0003.090107T0700Z-090108T0000Z/
/O.NEW.KRIW.HW.W.0003.090107T0700Z-090108T0100Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
INCLUDING THE CITY OF...JEFFREY CITY
932 PM MST TUE JAN 6 2009

...HIGH WIND WARNING IN EFFECT UNTIL 6 PM MST WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT UNTIL 6 PM MST WEDNESDAY. THE HIGH
WIND WATCH IS NO LONGER IN EFFECT. 

WEST WIND WILL INCREASE TO 40 TO 50 MPH WITH GUSTS TO 65 MPH IN
THE GREEN AND RATTLESNAKE RANGE AREA EARLY WEDNESDAY MORNING AND
CONTINUE INTO WEDNESDAY AFTERNOON...BEFORE SUBSIDING BY WEDNESDAY EVENING.
THE WIND IS EXPECTED TO PRODUCE CONSIDERABLE BLOWING AND DRIFTING
SNOW AND REDUCED VISIBILITY AT TIMES...IMPACTING TRAVEL ON HWY 135
BETWEEN SAND DRAW AND HWY 287 AND ALONG HWY 287 FROM BEAVER RIM TO
JEFFREY CITY TO RAWLINS. BE SURE TO CHECK HIGHWAY CONDITIONS
BEFORE DEPARTING BY DIALING 5 1 1.

REMEMBER...A HIGH WIND WARNING MEANS HAZARDOUS WEATHER CONDITIONS
ARE IMMINENT OR HIGHLY LIKELY.

$$

WYZ002-071245-
/O.UPG.KRIW.HW.A.0003.090107T1200Z-090108T0300Z/
/O.NEW.KRIW.HW.W.0003.090107T1300Z-090109T0700Z/
ABSAROKA MOUNTAINS-
932 PM MST TUE JAN 6 2009

...HIGH WIND WARNING IN EFFECT FROM 6 AM WEDNESDAY TO MIDNIGHT
MST THURSDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT FROM 6 AM WEDNESDAY TO MIDNIGHT MST
THURSDAY NIGHT. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. 

WEST WIND OF 45 TO 60 MPH WITH GUSTS TO 80 MPH ARE LIKELY ALONG
THE EAST SLOPES OF THE ABSAROKA MOUNTAINS WEDNESDAY. WIND WILL
RAPIDLY INCREASE AFTER MIDNIGHT TONIGHT...POSSIBLY BECOMING QUITE
STRONG BY 5 AM. THE WIND IS EXPECTED TO PRODUCE CONSIDERABLE
BLOWING AND DRIFTING SNOW WITH REDUCED VISIBILITY... IMPACTING
TRAVEL ON CHIEF JOSEPH HIGHWAY. A WINTER WEATHER ADVISORY IS IN
EFFECT FOR SIGNIFICANT SNOWFALL OVER THE WESTERN PORTION OF THE
RANGE THROUGH WEDNESDAY AFTERNOON. BE SURE TO CHECK HIGHWAY
CONDITIONS BEFORE DEPARTING BY DIALING 5 1 1.

REMEMBER...A HIGH WIND WARNING MEANS HAZARDOUS WEATHER CONDITIONS
ARE IMMINENT OR HIGHLY LIKELY.

$$

AEM
7 follow-up statements
000 
WWUS75 KRIW 070907
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
207 AM MST WED JAN 7 2009

...HIGH WIND IN THE ABSAROKA MOUNTAINS...GREEN MOUNTAINS AND
RATTLESNAKE RANGE AREAS TODAY...

.A VERY STRONG NORTHWEST FLOW ALOFT WILL COMBINE WITH A STRONG
SOUTHWESTERLY SURFACE PRESSURE GRADIENT TO PRODUCE HIGH WIND OVER
PORTIONS OF NORTHERN AND CENTRAL WYOMING TODAY.

WYZ019-072300-
/O.CON.KRIW.HW.W.0003.000000T0000Z-090108T0100Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
INCLUDING THE CITY OF...JEFFREY CITY
207 AM MST WED JAN 7 2009

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
AFTERNOON...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
AFTERNOON. 

WEST WIND FROM 40 TO 50 MPH WITH GUSTS TO 65 MPH IN THE GREEN AND
RATTLESNAKE RANGE AREA TODAY...BEFORE SUBSIDING BY THIS EVENING.
THE WIND IS EXPECTED TO PRODUCE CONSIDERABLE BLOWING AND DRIFTING
SNOW AND REDUCED VISIBILITY AT TIMES...IMPACTING TRAVEL ON HWY 135
BETWEEN SAND DRAW AND HWY 287 AND ALONG HWY 287 FROM BEAVER RIM TO
JEFFREY CITY TO RAWLINS. BE SURE TO CHECK HIGHWAY CONDITIONS
BEFORE DEPARTING BY DIALING 5 1 1.

REMEMBER...A HIGH WIND WARNING MEANS HAZARDOUS WEATHER CONDITIONS
ARE IMMINENT OR HIGHLY LIKELY.

$$

WYZ002-072300-
/O.CON.KRIW.HW.W.0003.090107T1300Z-090109T0700Z/
ABSAROKA MOUNTAINS-
207 AM MST WED JAN 7 2009

...HIGH WIND WARNING REMAINS IN EFFECT FROM 6 AM THIS MORNING TO
MIDNIGHT MST THURSDAY NIGHT...

A HIGH WIND WARNING REMAINS IN EFFECT FROM 6 AM THIS MORNING TO
MIDNIGHT MST THURSDAY NIGHT. 

WEST WIND OF 45 TO 60 MPH WITH GUSTS TO 80 MPH ARE LIKELY ALONG
THE EAST SLOPES OF THE ABSAROKA MOUNTAINS TODAY. THE HIGH WIND IS
EXPECTED TO PRODUCE CONSIDERABLE BLOWING AND DRIFTING SNOW WITH
REDUCED VISIBILITY... IMPACTING TRAVEL ON CHIEF JOSEPH HIGHWAY. A
WINTER WEATHER ADVISORY IS IN EFFECT FOR SIGNIFICANT SNOWFALL OVER
THE WESTERN PORTION OF THE RANGE THROUGH THIS AFTERNOON. BE
SURE TO CHECK HIGHWAY CONDITIONS BEFORE DEPARTING BY DIALING 5 1
1.

REMEMBER...A HIGH WIND WARNING MEANS HAZARDOUS WEATHER CONDITIONS
ARE IMMINENT OR HIGHLY LIKELY.

$$
000 
WWUS75 KRIW 071251
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
551 AM MST WED JAN 7 2009

...HIGH WIND IN THE ABSAROKA MOUNTAINS...GREEN MOUNTAINS AND
RATTLESNAKE RANGE AREAS TODAY...

.A VERY STRONG NORTHWEST FLOW ALOFT WILL COMBINE WITH A STRONG
SOUTHWESTERLY SURFACE PRESSURE GRADIENT TO PRODUCE HIGH WIND OVER
PORTIONS OF NORTHERN...CENTRAL AND SOUTHERN WYOMING TODAY.

WYZ030-072315-
/O.EXA.KRIW.HW.W.0003.000000T0000Z-090108T0100Z/
EAST SWEETWATER COUNTY-
INCLUDING THE CITY OF...WAMSUTTER
551 AM MST WED JAN 7 2009

...HIGH WIND WARNING IN EFFECT UNTIL 6 PM MST THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT UNTIL 6 PM MST THIS AFTERNOON. 

WEST WIND FROM 40 TO 50 MPH WITH GUSTS TO 65 MPH EASTERN SWEETWATER
COUNTY TODAY...BETWEEN ROCK SPRINGS AND WAMSUTTER ALONG
INTERSTATE 80...BEFORE SUBSIDING BY THIS EVENING. THE WIND IS
EXPECTED TO PRODUCE CONSIDERABLE BLOWING AND DRIFTING SNOW AND
REDUCED VISIBILITY AT TIMES...IMPACTING TRAVEL.  BE SURE TO CHECK
HIGHWAY CONDITIONS BEFORE DEPARTING BY DIALING 5 1 1.

REMEMBER...A HIGH WIND WARNING MEANS HAZARDOUS WEATHER CONDITIONS
ARE IMMINENT OR HIGHLY LIKELY.

$$

WYZ019-072315-
/O.CON.KRIW.HW.W.0003.000000T0000Z-090108T0100Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
INCLUDING THE CITY OF...JEFFREY CITY
551 AM MST WED JAN 7 2009

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
AFTERNOON...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
AFTERNOON. 

WEST WIND FROM 40 TO 50 MPH WITH GUSTS TO 65 MPH IN THE GREEN AND
RATTLESNAKE RANGE AREA TODAY...BEFORE SUBSIDING BY THIS EVENING.
THE WIND IS EXPECTED TO PRODUCE CONSIDERABLE BLOWING AND DRIFTING
SNOW AND REDUCED VISIBILITY AT TIMES...IMPACTING TRAVEL ON HWY
135 BETWEEN SAND DRAW AND HWY 287 AND ALONG HWY 287 FROM BEAVER
RIM TO JEFFREY CITY TO RAWLINS. BE SURE TO CHECK HIGHWAY
CONDITIONS BEFORE DEPARTING BY DIALING 5 1 1.

REMEMBER...A HIGH WIND WARNING MEANS HAZARDOUS WEATHER CONDITIONS
ARE IMMINENT OR HIGHLY LIKELY.

$$

WYZ002-072315-
/O.CON.KRIW.HW.W.0003.090107T1300Z-090109T0700Z/
ABSAROKA MOUNTAINS-
551 AM MST WED JAN 7 2009

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST
THURSDAY NIGHT...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST THURSDAY
NIGHT. 

WEST WIND OF 45 TO 60 MPH WITH GUSTS TO 80 MPH ARE LIKELY ALONG
THE EAST SLOPES OF THE ABSAROKA MOUNTAINS TODAY. THE HIGH WIND IS
EXPECTED TO PRODUCE CONSIDERABLE BLOWING AND DRIFTING SNOW WITH
REDUCED VISIBILITY... IMPACTING TRAVEL ON CHIEF JOSEPH HIGHWAY. A
WINTER WEATHER ADVISORY IS IN EFFECT FOR SIGNIFICANT SNOWFALL
OVER THE WESTERN PORTION OF THE RANGE THROUGH THIS AFTERNOON. BE
SURE TO CHECK HIGHWAY CONDITIONS BEFORE DEPARTING BY DIALING
5 1 1.

REMEMBER...A HIGH WIND WARNING MEANS HAZARDOUS WEATHER CONDITIONS
ARE IMMINENT OR HIGHLY LIKELY.

$$
000 
WWUS75 KRIW 071633
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
933 AM MST WED JAN 7 2009

...HIGH WIND IN THE ABSAROKA MOUNTAINS...GREEN MOUNTAINS AND
RATTLESNAKE RANGE AREAS TODAY...

.A VERY STRONG NORTHWEST FLOW ALOFT WILL COMBINE WITH A STRONG
SOUTHWESTERLY SURFACE PRESSURE GRADIENT TO PRODUCE HIGH WIND OVER
PORTIONS OF NORTHERN...CENTRAL AND SOUTHERN WYOMING TODAY.

WYZ002-080000-
/O.EXT.KRIW.HW.W.0003.000000T0000Z-090108T0600Z/
ABSAROKA MOUNTAINS-
933 AM MST WED JAN 7 2009

...HIGH WIND WARNING NOW IN EFFECT UNTIL 11 PM MST THIS EVENING...

THE HIGH WIND WARNING IS NOW IN EFFECT UNTIL 11 PM MST THIS
EVENING. 

WEST WIND OF 45 TO 60 MPH WITH GUSTS TO 80 MPH ARE LIKELY ALONG
THE EAST SLOPES OF THE ABSAROKA MOUNTAINS THROUGH THIS EVENING.
THE STRONGEST WIND WILL LIKELY OCCUR THIS AFTERNOON AND EARLY EVENING.
THE HIGH WIND IS EXPECTED TO PRODUCE CONSIDERABLE BLOWING AND
DRIFTING SNOW WITH REDUCED VISIBILITY... IMPACTING TRAVEL ON CHIEF
JOSEPH HIGHWAY. A WINTER WEATHER ADVISORY IS IN EFFECT FOR
SIGNIFICANT SNOWFALL OVER THE WESTERN PORTION OF THE RANGE THROUGH
THIS AFTERNOON. BE SURE TO CHECK HIGHWAY CONDITIONS BEFORE
DEPARTING BY DIALING 5 1 1.

REMEMBER...A HIGH WIND WARNING MEANS HAZARDOUS WEATHER CONDITIONS
ARE IMMINENT OR HIGHLY LIKELY.

$$

WYZ019-080000-
/O.CON.KRIW.HW.W.0003.000000T0000Z-090108T0100Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
INCLUDING THE CITY OF...JEFFREY CITY
933 AM MST WED JAN 7 2009

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
AFTERNOON...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
AFTERNOON. 

WEST WIND FROM 40 TO 50 MPH WITH GUSTS TO 65 MPH IN THE GREEN AND
RATTLESNAKE RANGE AREA TODAY...BEFORE SUBSIDING BY THIS EVENING.
THE WIND IS EXPECTED TO PRODUCE CONSIDERABLE BLOWING AND DRIFTING
SNOW AND REDUCED VISIBILITY AT TIMES...IMPACTING TRAVEL ON HWY
135 BETWEEN SAND DRAW AND HWY 287 AND ALONG HWY 287 FROM BEAVER
RIM TO JEFFREY CITY TO RAWLINS. BE SURE TO CHECK HIGHWAY
CONDITIONS BEFORE DEPARTING BY DIALING 5 1 1.

REMEMBER...A HIGH WIND WARNING MEANS HAZARDOUS WEATHER CONDITIONS
ARE IMMINENT OR HIGHLY LIKELY.

$$

WYZ030-080000-
/O.CON.KRIW.HW.W.0003.000000T0000Z-090108T0100Z/
EAST SWEETWATER COUNTY-
INCLUDING THE CITY OF...WAMSUTTER
933 AM MST WED JAN 7 2009

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
AFTERNOON...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
AFTERNOON. 

WEST WIND FROM 40 TO 50 MPH WITH GUSTS TO 65 MPH EASTERN
SWEETWATER COUNTY TODAY...BETWEEN ROCK SPRINGS AND WAMSUTTER
ALONG INTERSTATE 80...BEFORE SUBSIDING BY THIS EVENING. THE WIND
IS EXPECTED TO PRODUCE CONSIDERABLE BLOWING AND DRIFTING SNOW AND
REDUCED VISIBILITY AT TIMES...IMPACTING TRAVEL.  BE SURE TO CHECK
HIGHWAY CONDITIONS BEFORE DEPARTING BY DIALING 5 1 1.

REMEMBER...A HIGH WIND WARNING MEANS HAZARDOUS WEATHER CONDITIONS
ARE IMMINENT OR HIGHLY LIKELY.

$$

TEAM RIVERTON
000 
WWUS75 KRIW 072004
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
104 PM MST WED JAN 7 2009

...HIGH WIND IN THE ABSAROKA MOUNTAINS...GREEN MOUNTAINS AND
RATTLESNAKE RANGE AND MUCH OF SWEETWATER COUNTY TODAY...

.A VERY STRONG NORTHWEST FLOW ALOFT WILL COMBINE WITH A STRONG
SOUTHWESTERLY SURFACE PRESSURE GRADIENT TO PRODUCE HIGH WIND OVER
PORTIONS OF CENTRAL AND SOUTHWEST WYOMING TODAY.

WYZ029-080100-
/O.EXA.KRIW.HW.W.0003.000000T0000Z-090108T0100Z/
FLAMING GORGE-
104 PM MST WED JAN 7 2009

...HIGH WIND WARNING IN EFFECT UNTIL 6 PM MST THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT UNTIL 6 PM MST THIS AFTERNOON. 

WEST WIND FROM 40 TO 50 MPH WITH GUSTS UP TO 70 MPH ARE EXPECTED
ACROSS THE FLAMING GORGE AREA THE REMAINDER OF THE AFTERNOON. 
A SPOTTER AT THE BUCKBOARD MARINA REPORTED WINDS OF 50 MPH WITH GUSTS
UP TO 70 MPH AROUND 1245 PM. THESE HIGH WINDS MAY CONTINUE OFF AND
ON THE REMAINDER OF THE AFTERNOON. TRAVEL ALONG HIGHWAYS 191 AND
530 WILL BE IMPACTED BY THESE HIGH WINDS. BE SURE TO CHECK HIGHWAY
CONDITIONS BEFORE DEPARTING BY DIALING 5 1 1.

REMEMBER...A HIGH WIND WARNING MEANS HAZARDOUS WEATHER CONDITIONS
ARE IMMINENT OR HIGHLY LIKELY.

$$

WYZ019-080100-
/O.CON.KRIW.HW.W.0003.000000T0000Z-090108T0100Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
INCLUDING THE CITY OF...JEFFREY CITY
104 PM MST WED JAN 7 2009

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
AFTERNOON...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
AFTERNOON. 

WEST WIND FROM 40 TO 50 MPH WITH GUSTS TO 65 MPH IN THE GREEN AND
RATTLESNAKE RANGE AREA THIS AFTERNOON...BEFORE SUBSIDING BY THIS EVENING.
THE WIND IS EXPECTED TO PRODUCE CONSIDERABLE BLOWING AND DRIFTING
SNOW AND REDUCED VISIBILITY AT TIMES...IMPACTING TRAVEL ON HWY 135
BETWEEN SAND DRAW AND HWY 287 AND ALONG HWY 287 FROM BEAVER RIM TO
JEFFREY CITY TO RAWLINS. BE SURE TO CHECK HIGHWAY CONDITIONS
BEFORE DEPARTING BY DIALING 5 1 1.

REMEMBER...A HIGH WIND WARNING MEANS HAZARDOUS WEATHER CONDITIONS
ARE IMMINENT OR HIGHLY LIKELY.

$$

WYZ002-080100-
/O.CON.KRIW.HW.W.0003.000000T0000Z-090108T0600Z/
ABSAROKA MOUNTAINS-
104 PM MST WED JAN 7 2009

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING. 

WEST WIND OF 45 TO 60 MPH WITH GUSTS TO 80 MPH ARE LIKELY ALONG
THE EAST SLOPES OF THE ABSAROKA MOUNTAINS THROUGH THIS EVENING.
THE STRONGEST WIND WILL LIKELY OCCUR THIS AFTERNOON AND EARLY
EVENING. THE HIGH WIND IS EXPECTED TO PRODUCE CONSIDERABLE
BLOWING AND DRIFTING SNOW WITH REDUCED VISIBILITY... IMPACTING
TRAVEL ON CHIEF JOSEPH HIGHWAY. A WINTER WEATHER ADVISORY IS IN
EFFECT FOR SIGNIFICANT SNOWFALL OVER THE WESTERN PORTION OF THE
RANGE THROUGH THIS AFTERNOON. BE SURE TO CHECK HIGHWAY CONDITIONS
BEFORE DEPARTING BY DIALING 5 1 1.

REMEMBER...A HIGH WIND WARNING MEANS HAZARDOUS WEATHER CONDITIONS
ARE IMMINENT OR HIGHLY LIKELY.

$$

WYZ030-080100-
/O.CON.KRIW.HW.W.0003.000000T0000Z-090108T0100Z/
EAST SWEETWATER COUNTY-
INCLUDING THE CITY OF...WAMSUTTER
104 PM MST WED JAN 7 2009

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
AFTERNOON...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
AFTERNOON. 

WEST WIND FROM 40 TO 50 MPH WITH GUSTS TO 65 MPH EASTERN
SWEETWATER COUNTY TODAY...BETWEEN ROCK SPRINGS AND WAMSUTTER
ALONG INTERSTATE 80...BEFORE SUBSIDING BY THIS EVENING. THE WIND
IS EXPECTED TO PRODUCE CONSIDERABLE BLOWING AND DRIFTING SNOW AND
REDUCED VISIBILITY AT TIMES...IMPACTING TRAVEL.  BE SURE TO CHECK
HIGHWAY CONDITIONS BEFORE DEPARTING BY DIALING 5 1 1.

REMEMBER...A HIGH WIND WARNING MEANS HAZARDOUS WEATHER CONDITIONS
ARE IMMINENT OR HIGHLY LIKELY.

$$

TEAM RIVERTON
000 
WWUS75 KRIW 072232
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
332 PM MST WED JAN 7 2009

...HIGH WIND IN THE ABSAROKA MOUNTAINS...GREEN MOUNTAINS AND
RATTLESNAKE RANGE AND MUCH OF SWEETWATER COUNTY TODAY...

.A VERY STRONG NORTHWEST FLOW ALOFT WILL COMBINE WITH A STRONG
WESTERLY SURFACE PRESSURE GRADIENT TO PRODUCE HIGH WIND OVER
PORTIONS OF CENTRAL AND SOUTHWEST WYOMING TODAY.

WYZ019-080100-
/O.CON.KRIW.HW.W.0003.000000T0000Z-090108T0100Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
INCLUDING THE CITY OF...JEFFREY CITY
332 PM MST WED JAN 7 2009

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
AFTERNOON...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
AFTERNOON. 

WEST WIND FROM 40 TO 50 MPH WITH GUSTS TO 65 MPH IN THE GREEN AND
RATTLESNAKE RANGE AREA THIS AFTERNOON...BEFORE SUBSIDING BY THIS
EVENING. THE WIND IS EXPECTED TO PRODUCE CONSIDERABLE BLOWING AND
DRIFTING SNOW AND REDUCED VISIBILITY AT TIMES...IMPACTING TRAVEL
ON HWY 135 BETWEEN SAND DRAW AND HWY 287 AND ALONG HWY 287 FROM
BEAVER RIM TO JEFFREY CITY TO RAWLINS. BE SURE TO CHECK HIGHWAY
CONDITIONS BEFORE DEPARTING BY DIALING 5 1 1.

REMEMBER...A HIGH WIND WARNING MEANS HAZARDOUS WEATHER CONDITIONS
ARE IMMINENT OR HIGHLY LIKELY.

$$

WYZ002-080100-
/O.CON.KRIW.HW.W.0003.000000T0000Z-090108T0600Z/
ABSAROKA MOUNTAINS-
332 PM MST WED JAN 7 2009

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING. 

WEST WIND OF 45 TO 60 MPH WITH GUSTS TO 80 MPH ARE LIKELY ALONG
THE EAST SLOPES OF THE ABSAROKA MOUNTAINS THROUGH THIS EVENING.
THE HIGH WIND IS EXPECTED TO PRODUCE CONSIDERABLE BLOWING AND
DRIFTING SNOW WITH REDUCED VISIBILITY... IMPACTING TRAVEL ON CHIEF
JOSEPH HIGHWAY. A WINTER WEATHER ADVISORY IS IN EFFECT FOR
SIGNIFICANT SNOWFALL OVER THE WESTERN PORTION OF THE RANGE THROUGH
THIS AFTERNOON. BE SURE TO CHECK HIGHWAY CONDITIONS BEFORE
DEPARTING BY DIALING 5 1 1.

REMEMBER...A HIGH WIND WARNING MEANS HAZARDOUS WEATHER CONDITIONS
ARE IMMINENT OR HIGHLY LIKELY.

$$

WYZ030-080100-
/O.CON.KRIW.HW.W.0003.000000T0000Z-090108T0100Z/
EAST SWEETWATER COUNTY-
INCLUDING THE CITY OF...WAMSUTTER
332 PM MST WED JAN 7 2009

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
AFTERNOON...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
AFTERNOON. 

WEST WIND FROM 40 TO 50 MPH WITH GUSTS TO 65 MPH EASTERN
SWEETWATER COUNTY TODAY...BETWEEN ROCK SPRINGS AND WAMSUTTER
ALONG INTERSTATE 80...BEFORE SUBSIDING BY THIS EVENING. THE WIND
IS EXPECTED TO PRODUCE CONSIDERABLE BLOWING AND DRIFTING SNOW AND
REDUCED VISIBILITY AT TIMES...IMPACTING TRAVEL.  BE SURE TO CHECK
HIGHWAY CONDITIONS BEFORE DEPARTING BY DIALING 5 1 1.

REMEMBER...A HIGH WIND WARNING MEANS HAZARDOUS WEATHER CONDITIONS
ARE IMMINENT OR HIGHLY LIKELY.

$$

WYZ029-080100-
/O.CON.KRIW.HW.W.0003.000000T0000Z-090108T0100Z/
FLAMING GORGE-
332 PM MST WED JAN 7 2009

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
AFTERNOON...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
AFTERNOON. 

WEST WIND FROM 40 TO 50 MPH WITH GUSTS UP TO 65 MPH ARE EXPECTED
ACROSS THE FLAMING GORGE AREA THE REMAINDER OF THE AFTERNOON.
EARLIER THIS AFTERNOON A SPOTTER AT THE BUCKBOARD MARINA REPORTED
WINDS OF 50 MPH WITH GUSTS UP TO 70 MPH. THESE HIGH WINDS WILL LIKELY
CONTINUE OFF AND ON UNTIL 6 PM BEFORE DECREASING. TRAVEL ALONG HIGHWAYS 
191 AND 530 WILL BE IMPACTED BY THESE HIGH WINDS. BE SURE TO
CHECK HIGHWAY CONDITIONS BEFORE DEPARTING BY DIALING 5 1 1.

REMEMBER...A HIGH WIND WARNING MEANS HAZARDOUS WEATHER CONDITIONS
ARE IMMINENT OR HIGHLY LIKELY.

$$

TEAM RIVERTON
000 
WWUS75 KRIW 080119
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
619 PM MST WED JAN 7 2009


WYZ019-029-030-080230-
/O.EXP.KRIW.HW.W.0003.000000T0000Z-090108T0100Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-FLAMING GORGE-
EAST SWEETWATER COUNTY-
INCLUDING THE CITIES OF...JEFFREY CITY...WAMSUTTER
619 PM MST WED JAN 7 2009

...HIGH WIND WARNING HAS EXPIRED...

THE HIGH WIND WARNING IS NO LONGER IN EFFECT. 

WINDS WILL CONTINUE TO SUBSIDE THIS EVENING. SOME VERY WINDY
CONDITIONS OF 35 TO 40 MPH WITH GUSTS TO NEAR 55 MPH WILL BE
ENCOUNTERED NEAR MUDDY GAP THROUGH THE EVENING.  

$$

WYZ002-080600-
/O.CON.KRIW.HW.W.0003.000000T0000Z-090108T0600Z/
ABSAROKA MOUNTAINS-
619 PM MST WED JAN 7 2009

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING. 

WINDS AT A REMOTE SENSING SITE ON CHIEF JOSEPH HIGHWAY OR HIGHWAY
290 CONTINUED TO REPORT SUSTAINED WIND SPEEDS NEAR 50 MPH EARLY
THIS EVENING. WEST WIND OF 45 TO 60 MPH WITH GUSTS AS HIGH AS 80
MPH WILL CONTINUE THROUGH THIS EVENING. THE HIGH WIND IS EXPECTED
TO PRODUCE CONSIDERABLE BLOWING AND DRIFTING SNOW WITH REDUCED
VISIBILITY... IMPACTING TRAVEL ON CHIEF JOSEPH HIGHWAY. BE SURE
TO CHECK HIGHWAY CONDITIONS BEFORE DEPARTING BY DIALING 5 1 1.

REMEMBER...A HIGH WIND WARNING MEANS HAZARDOUS WEATHER CONDITIONS
ARE IMMINENT OR HIGHLY LIKELY.

$$

AEM
000 
WWUS75 KRIW 080449
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
949 PM MST WED JAN 7 2009


WYZ002-080600-
/O.CAN.KRIW.HW.W.0003.000000T0000Z-090108T0600Z/
ABSAROKA MOUNTAINS-
949 PM MST WED JAN 7 2009

...HIGH WIND WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELLED THE HIGH
WIND WARNING. 

WINDS HAVE SUBSIDED BELOW HIGH WIND THRESHOLDS AND ARE EXPECTED TO
REMAIN NEAR CURRENT SPEEDS OVERNIGHT. 

$$

WYZ019-020-081100-
/O.NEW.KRIW.HW.A.0004.090108T1800Z-090109T0100Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
NATRONA COUNTY LOWER ELEVATIONS-
INCLUDING THE CITIES OF...JEFFREY CITY...CASPER
949 PM MST WED JAN 7 2009

...HIGH WIND WATCH IN EFFECT FROM THURSDAY MORNING THROUGH
THURSDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND
WATCH...WHICH IS IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY
AFTERNOON. 

STRONG WEST SOUTHWEST WINDS ARE EXPECTED TO DEVELOP FROM THE SOUTH
PASS AREA OVER BEAVER RIM THROUGH THE CASPER AREA...ESPECIALLY
ALONG OUTER DRIVE ON THE SOUTH SIDE OF CASPER...LATE THURSDAY
MORNING AND CONTINUE THROUGH THURSDAY AFTERNOON. WIND SPEEDS OF 35
TO 45 MPH WITH GUSTS TO 65 MPH ARE LIKELY BY THURSDAY AFTERNOON.

REMEMBER...A HIGH WIND WATCH MEANS CONDITIONS ARE FAVORABLE FOR A
HAZARDOUS HIGH WIND EVENT IN AND CLOSE TO THE WATCH AREA.

$$

What forecasters said that day

The local office's own words before this high wind warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Riverton, WY wrote its last area forecast discussion before this high wind warning went out at Jan 6, 3:28 PM MST, 6 hours 4 minutes earlier.

Area forecast discussion, Jan 6, 3:28 PM MST, 6 hours 4 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RIVERTON WY
328 PM MST TUE JAN 6 2009

.SHORT TERM...TONIGHT THROUGH FRIDAY

ISENTROPIC LIFT ON THE FRONT SIDE OF FLAT RIDGE CONTINUES IN THE
WEST TODAY.  LIGHT SNOW HAS FALLEN ALL DAY IN THE FAR WEST WITH
PORTIONS OF THE STAR VALLEY PICKING UP 4 TO 5 INCHES SINCE LAST
EVENING.  A MOIST PACIFIC FLOW MOVES INTO THE WEST THIS EVENING
INTENSIFYING THE SNOW.  THIS FLOW CONTINUES THROUGH WEDNESDAY
AFTERNOON BEFORE THE PLUME LOOSES ITS INTENSITY.  STRONG SOUTHWEST
TO WEST WINDS TO ACCOMPANY THE SNOWFALL AT MOUNTAIN TOP AND PASS
LEVELS...PRODUCING SIGNIFICANT BLOWING AND DRIFTING SNOW. BEST
SNOWFALL WILL BE IN THE TETONS...YELLOWSTONE...JACKSON HOLE AND
TOGWOTEE PASS AREAS...SO WILL UPGRADE THE WINTER WEATHER ADVISORIES
TO WARNINGS. HAVE ALSO UPGRADED STAR VALLEY TO A WARNING SINCE THEY
HAVE ALREADY PICKED UP 4 TO 5 INCHES.  SNOTELS IN THE SALTS/WYOMING
RANGES INDICATE ONLY A FEW INCHES SO WILL KEEP THEM AT ADVISORIES.
AS FOR THE WIND RIVERS...ISSUING AN ADVISORY FOR THE EAST SLOPES FOR
UP TO A FOOT OF SNOW ON TOGWOTEE PASS AND STRONG WINDS OVER SOUTH
PASS PRODUCING THE BLOWING AND DRIFTING SNOW...THOUGH LITTLE
SNOWFALL.  WILL ALSO KEEP ADVISORY GOING FOR THE ABSAROKAS.  WILL
LET ALL WINTER HIGHLIGHTS FOR THE WEST GO THROUGH 00Z THURSDAY.
ISENTROPIC LIFT TO ALSO BRING SNOW TO THE BIGHORNS TONIGHT WITH 5 TO
10 INCHES POSSIBLE THERE BY NOON WEDNESDAY.  HAVE INCLUDED THEM IN
AN ADVISORY AS WELL.  WINDS GET CRANKING PRETTY GOOD OVERNIGHT AS
THE GRADIENT TIGHTENS WITH HIGH WINDS A POSSIBILITY OVER THE GREEN
MOUNTAINS AFTER MIDNIGHT.  PROBLEM I SEE WITH THIS...EVEN WITH 50KT
AT H7...IS THAT THE H7 GRADIENT IS NORTHWEST...WHILE SFC GRADIENT IS
SOUTHWEST.  THESE CONDITIONS PERSIST THROUGH THE DAY
WEDNESDAY...DIMINISHING AFTER 00Z.  WILL KEEP HIGH WIND WATCH GOING
FOR NOW AND LET EVENING SHIFT TAKE ONE LAST LOOK.  H7 WINDS OVER
ABSAROKAS GET CRANKING AS WELL WITH SPEEDS UP TO 70KTS DURING THE
DAY WEDNESDAY.  THIS AREA IS A BIT MORE FAVORABLE FOR HIGH WINDS
WITH WNW FLOW.  HAVE HOISTED A HIGH WIND WATCH FOR 12Z TO 00Z
TOMORROW FOR THE ABSAROKAS.  MOST LOCATIONS WILL BE WINDY ON
WEDNESDAY. TEMPERATURES WARM QUITE NICELY EAST OF THE DIVIDE
WEDNESDAY WITH WIDESPREAD 40S EXPECTED...EVEN SOME 30S WEST OF THE
DIVIDE.  SOME 50S ARE LIKELY THURSDAY UNDER BACKING SOUTHWEST FLOW
WITH GOOD WARM AIR ADVECTION.

RIDGE AXIS MOVES THROUGH WYOMING THURSDAY MORNING WITH THE FLOW
BACKING AHEAD OF AN APPROACHING LONG WAVE TROUGH.  THE FLOW BACKS
WITH THIS WITH SNOW RETURNING TO THE WEST IN THE AFTERNOON AS
FAVORABLE BAROCLINIC LEAF MOVES IN AHEAD OF THE TROUGH.  THIS WILL
BRING A FAIRLY QUICK SHOT OF SNOW THROUGH THURSDAY NIGHT.  A COLD
FRONT MOVES THROUGH AS WELL WITH THE FLOW VEERING TO THE NORTH
BEHIND THE FRONT AND TROUGH.  THIS SETS UP THE POTENTIAL FOR SOME
UPSLOPE SNOW EAST OF THE DIVIDE FRIDAY MORNING.

.LONG TERM...FRIDAY NIGHT THROUGH TUESDAY
MODELS NOW BRING COLD FRONT SOUTH OUT OF MONTANA SPREADING
PRECIPITATION SOUTH EAST OF THE CONTINENTAL DIVIDE. HAVE INCREASED
CHANCE OF PRECIPITATION THROUGH THE DAY FRIDAY. IF THE MODELS LOCK
IN ON THIS...WILL LIKELY NEED MUCH HIGHER PRECIPITATION
PROBABILITIES ALONG WITH INCREASED SNOWFALL AMOUNTS. THEN RIDGE
BUILDS BACK WITH WET NORTHWEST FLOW AND DRYING EAST OF THE DIVIDE
AND A RETURN TO WESTERLY WINDS AT THE SURFACE. TEMPERATURES NOW
COLDER FRIDAY AND FRIDAY NIGHT AND PROBABLY NOT COLD ENOUGH
DEPENDING ON THE STRENGTH OF THE FRONT AND THE AMOUNT AND COVERAGE
OF SNOWFALL. SHOULD SEE TEMPERATURES BOUNCE BACK ON SUNDAY AND
SUNDAY NIGHT. MODELS NOW SHOW BACK DOOR COLD FRONT MOVING SOUTHWEST
FROM EASTERN MONTANA AND THE DAKOTAS INTO NORTHERN AND EASTERN
WYOMING ON MONDAY. THIS WILL LIKELY COOL OFF EASTERN JOHNSON AND
EASTERN NATRONA COUNTIES WHILE LEAVING WARMER TEMPERATURES WEST
AND SOUTH OF THE FRONT. EXTENDED MODELS EXHIBITING SOME RUN TO RUN
CHANGES WHICH DECREASES THE CONFIDENCE IN THE COOLING AND SPREAD
OF PRECIPITATION THROUGH THE EXTENDED FORECAST. BEST BET IS FOR
DRY SATURDAY AND SATURDAY NIGHT.

&&

.AVIATION...

CONDITIONS WILL CONTINUE TO DETERIORATE ACROSS THE FAR WEST...WITH
CIGS/VSBYS LOWERING THROUGH THE NIGHT.  MVFR/IFR CONDITIONS WILL
PERSIST THROUGH WEDNESDAY MORNING FOR KJAC...KPNA...AND KBPI. EXPECT
WIDESPREAD MOUNTAIN OBSCURATIONS AS WELL.  KRKS WILL ALSO EXPERIENCE
OCCASIONAL MVFR/IFR CONDITIONS THROUGH 18Z WEDNESDAY.  THERE WILL BE
AREAS OF LLWS BTWN 1KFT-2KFT AGL ALONG THE EAST SLOPES FROM
KCOD-KLND OVERNIGHT AND WEDNESDAY MORNING AS WELL.

&&

.FIRE WEATHER...

PERIODS OF SNOW ARE EXPECTED IN THE WEST THROUGH WEDNESDAY
EVENING...WITH SIGNIFICANT AMOUNTS EXPECTED. LIGHT SNOW EXPECTED IN
THE WEST WEDNESDAY NIGHT AND THURSDAY. IT WILL REMAIN WINDY OVER THE
NEXT SEVERAL DAYS THOUGH MUCH WARMER AIR WILL MOVE IN. EAST OF
DIVIDE...40S WEDNESDAY AND 50S BY THURSDAY. A COLD FRONT MOVES
THROUGH THURSDAY NIGHT...BRINGING IN COLDER AIR AS WELL AS A CHANCE
OF SNOW EAST OF THE DIVIDE FRIDAY MORNING.

&&

.RIW WATCHES/WARNINGS/ADVISORIES...
WINTER WEATHER ADVISORY UNTIL 6 PM MST WEDNESDAY FOR WYZ002-015-
024-025.

HIGH WIND WATCH FROM LATE TONIGHT THROUGH WEDNESDAY EVENING FOR
WYZ002.

WINTER STORM WARNING UNTIL 6 PM MST WEDNESDAY FOR WYZ001-012-013-
023.

HIGH WIND WATCH FROM MIDNIGHT MST TONIGHT THROUGH WEDNESDAY
AFTERNOON FOR WYZ019.

WINTER WEATHER ADVISORY FROM 6 PM THIS EVENING TO 12 PM MST
WEDNESDAY FOR WYZ008-009.

&&

SHORT TERM...TWB
LONG TERM...C.BAKER
AVIATION...BERC
FIRE WEATHER...TWB
Hazardous weather outlook, Jan 6, 9:06 PM MST, 26 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RIVERTON WY
906 PM MST TUE JAN 6 2009

WYZ001>020-022>030-071300-
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-
906 PM MST TUE JAN 6 2009

...WINTER STORM WARNINGS AND WINTER WEATHER ADVISORIES ARE IN EFFECT
FOR MUCH OF FAR WESTERN WYOMING AND THE BIG HORN MOUNTAINS THROUGH
WEDNESDAY AFTERNOON...

...HIGH WIND WARNINGS ARE IN EFFECT FOR THE GREEN MOUNTAINS
AND ABSAROKA MOUNTAINS WEDNESDAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING.

.DAY ONE...TODAY AND TONIGHT

PERIODS OF SNOW...POSSIBLY HEAVY AT TIMES...WILL CONTINUE
OVERNIGHT ACROSS FAR WESTERN WYOMING.  SOUTHWEST TO WEST WINDS
WILL PRODUCE SIGNIFICANT BLOWING AND DRIFTING SNOW AT TIMES.  THE
SNOW WILL INCREASE OVER THE BIGHORNS AS WELL.  SEE WINTER STORM
WARNING AND WINTER WEATHER ADVISORY PRODUCTS FOR MORE INFORMATION.

SOUTHWEST WINDS WILL INCREASE AFTER MIDNIGHT OVER THE
GREEN/RATTLESNAKE MOUNTAINS...EXCEEDING 40 MPH WITH GUSTS TO 60
MPH. SEE HIGH WIND WARNING PRODUCTS FOR MORE INFORMATION.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

THE SNOW WILL CONTINUE IN THE WEST AND BIGHORN MOUNTAINS.  THROUGH
THIS AFTERNOON AS WELL AS THE BLOWING DRIFTING SNOW CAUSE BY THE
GUSTY SOUTHWEST TO WEST WINDS. TOTAL SNOW ACCUMULATION IN SOUTHERN
YELLOWSTONE PARK...THE TETON AND GROS VENTRE RANGE WILL RANGE FROM 10
TO 18 INCHES...WITH THE WYOMING/SALT RANGES AND THE ABSAROKA
MOUNTAINS RECEIVING FROM 6 TO 12 INCHES. TOTAL SNOW ACCUMULATION IN
THE BIGHORN MOUNTAINS...AND THE JACKSON AND STAR VALLEYS IS EXPECTED
TO RANGE FROM 5 TO 10 INCHES. THE UPPER GREEN RIVER BASIN WILL
RECEIVE 3 TO 6 INCHES WITH LOCALLY HIGHER AMOUNTS AROUND BONDURANT.

STRONG WEST AND SOUTHWEST WIND IS LIKELY EAST OF THE CONTINENTAL
DIVIDE.  THE WINDS COULD BE ESPECIALLY STRONG OVER THE ABSAROKA
MOUNTAINS AS WELL AS THE GREEN AND RATTLESNAKE RANGES.

SNOW IS EXPECTED TO SPREAD ACROSS THE AREA THURSDAY NIGHT AND
FRIDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ASKED TO REPORT ANY RECORDED STRONG WIND GUSTS...WIND
DAMAGE OR SNOW ACCUMULATION FROM MONDAY. THANK YOU.

TEAM RIVERTON

Nearby

High Wind Warnings in Wyoming, 2009Every high wind warning in 2009

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.