Alert archive / Wyoming / High Wind Warnings in 2006

High Wind Warning 10, NWS Riverton, WY

October 29, 20068 counties in Wyoming

NWS Riverton, WY issued this high wind warning at Oct 29, 2006, 3:07 PM MST for 8 counties in Wyoming. It was in force for 15 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Oct 29, 2006, 3:07 PM MST (22:07 UTC)
Expired
Oct 30, 2006, 6:29 AM MST
In force
15 hr
Issued by
NWS Riverton, WY

Counties Big Horn County, WY, Fremont County, WY, Hot Springs County, WY, Johnson County, WY, Natrona County, WY, Park County, WY, Sublette County, WY, Sweetwater County, WY

The radar

The Riverton/Lander radar (KRIW), 39 km from the middle of the area, began a volume at 22:05 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.

The nearest sounding before it

Riverton, WY (KRIW), launched 12:00Z, 10.1 hours before the alert went out and 37 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 12:00Z on 2006-10-29Temperature 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 12:00Z on 2006-10-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 square meters per square second.193958Sfc1 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
2973 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
39 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 292207
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
307 PM MST SUN OCT 29 2006

...VERY STRONG WINDS ARE EXPECTED OVER THE ABSAROKA MOUNTAINS THIS
EVENING WITH VERY STRONG WINDS POSSIBLE ALONG THE EAST SLOPE OF
THE WIND RIVER MOUNTAINS AND GREEN MOUNTAINS AND RATTLESNAKE RANGE...

.A VERY STRONG COLD FRONT WILL COMBINE WITH VERY STRONG WINDS AT
MOUNTAIN TOP LEVEL TO PRODUCE HIGH WINDS IN THE ABSAROKA MOUNTAINS
THROUGH THIS EVENING. THESE HIGH WINDS MAY WORK THEIR WAY SOUTH TO
THE EAST SLOPE OF THE WIND RIVER MOUNTAINS AND ADJACENT GREEN
MOUNTAINS AND RATTLESNAKE RANGE LATER THIS EVENING.

WYZ002-300500-
/O.UPG.KRIW.HW.A.0007.061030T0000Z-061030T0600Z/
/O.NEW.KRIW.HW.W.0010.061029T2207Z-061030T0600Z/
ABSAROKA MOUNTAINS-
307 PM MST SUN OCT 29 2006

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

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT UNTIL 11 PM MST THIS EVENING. THE
HIGH WIND WATCH IS NO LONGER IN EFFECT. 

WEST WINDS ARE EXPECTED TO CONTINUE INCREASING INTO THE EVENING
HOURS. SUSTAINED WEST WINDS OF 40 TO 50 MPH WITH GUSTS OF 70 TO
80 MPH ARE EXPECTED THROUGH THE EVENING HOURS...ESPECIALLY OVER
RIDGES...OPEN AREAS AND WEST FACING SLOPES. THESE HIGH WINDS
WILL IMPACT THE CHIEF JOSEPH HIGHWAY AS WELL AS HIGHWAYS 14...16
AND 20 WEST OF CODY. THERE IS THE POTENTIAL FOR DANGEROUS CROSS
WINDS ESPECIALLY IF DRIVING A HIGH PROFILE VEHICLE.

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 60 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

$$

WYZ015-300500-
/O.NEW.KRIW.HW.A.0009.061030T0500Z-061030T1200Z/
WIND RIVER MOUNTAINS EAST-
307 PM MST SUN OCT 29 2006

...HIGH WIND WATCH IN EFFECT FROM 10 PM MST THIS EVENING THROUGH
LATE TONIGHT...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND
WATCH...WHICH IS IN EFFECT FROM 10 PM MST THIS EVENING THROUGH
LATE TONIGHT. 

THE POTENTIAL FOR VERY STRONG SOUTHWEST WINDS OF 50 MPH WITH GUSTS
OVER 75 MPH EXIST LATER THIS EVENING AND OVERNIGHT AS VERY STRONG
WINDS INCREASE AT THE MOUNTAIN TOP LEVEL. CONDITIONS EXIST IN THE
ATMOSPHERE THAT MAY ALLOW THESE VERY STRONG SOUTHWEST WINDS TO
WORK DOWN THE EAST SLOPE OF THE WIND RIVER MOUNTAINS LATER TONIGHT
AND INTO THE EARLY MORNING HOURS MONDAY. IF THESE HIGH WINDS
DEVELOP...THEY WILL IMPACT SOUTH PASS MUCH MORE THAN TOGWOTEE
PASS. TRAVELLERS OVER HIGHWAY 28...SOUTH PASS...SHOULD BE PREPARED
FOR THESE POTENTIAL HIGH WINDS LATER THIS EVENING.

A HIGH WIND WATCH MEANS THERE IS THE POTENTIAL FOR A HAZARDOUS
HIGH WIND EVENT. SUSTAINED WINDS OF AT LEAST 40 MPH...OR GUSTS OF
60 MPH OR STRONGER MAY OCCUR. CONTINUE TO MONITOR THE LATEST
FORECASTS.

$$

WYZ019-300500-
/O.NEW.KRIW.HW.A.0009.061030T0500Z-061030T1200Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
INCLUDING THE CITY OF...JEFFREY CITY
307 PM MST SUN OCT 29 2006

...HIGH WIND WATCH IN EFFECT FROM 10 PM MST THIS EVENING THROUGH
LATE TONIGHT...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND
WATCH...WHICH IS IN EFFECT FROM 10 PM MST THIS EVENING THROUGH
LATE TONIGHT. 

STRONG SOUTHWEST WINDS WILL CONTINUE TO INCREASE ACROSS THE AREA 
INTO THE EVENING HOURS. THE POTENTIAL EXISTS FOR THESE SOUTHWEST
WINDS TO BECOME SUSTAINED AT 40 MPH WITH GUSTS OVER 60 MPH LATER
THIS EVENING. AN APPROACHING COLD FRONT MOVING INTO NORTHERN
WYOMING THIS EVENING WILL HELP TO INCREASE THE PRESSURE GRADIENT
ACROSS THIS AREA...AIDING IN THESE POTENTIAL HIGH WINDS.

A HIGH WIND WATCH MEANS THERE IS THE POTENTIAL FOR A HAZARDOUS
HIGH WIND EVENT. SUSTAINED WINDS OF AT LEAST 40 MPH...OR GUSTS OF
60 MPH OR STRONGER MAY OCCUR. CONTINUE TO MONITOR THE LATEST
FORECASTS.

$$

TEAM RIVERTON
5 follow-up statements
000 
WWUS75 KRIW 300303
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
803 PM MST SUN OCT 29 2006

...VERY STRONG WINDS WILL OCCUR ACROSS THE ABSAROKA...WIND
RIVER...GREEN MOUNTAINS IN ADDITION TO BIG HORN AND NORTHERN
JOHNSON COUNTY TONIGHT...

.A VERY STRONG COLD FRONT WILL COMBINE WITH VERY STRONG WINDS AT
MOUNTAIN TOP LEVEL TO PRODUCE HIGH WINDS IN THE ABSAROKA...WIND
RIVER...AND GREEN MOUNTAINS TONIGHT.  ADDITIONALLY...WINDS WILL BE
VERY STRONG ACROSS THE LOWER ELEVATIONS OF BIG HORN AND NORTHERN
JOHNSON COUNTY LATE THIS EVENING AS A STRONG COLD FRONT MOVES
THROUGH.

WYZ015-300600-
/O.UPG.KRIW.HW.A.0009.061030T0500Z-061030T1200Z/
/O.EXB.KRIW.HW.W.0010.061030T0303Z-061030T1200Z/
WIND RIVER MOUNTAINS EAST-
803 PM MST SUN OCT 29 2006

...HIGH WIND WARNING IN EFFECT UNTIL 5 AM MST MONDAY...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT UNTIL 5 AM MST MONDAY. THE HIGH WIND
WATCH IS NO LONGER IN EFFECT. 

VERY STRONG SOUTHWEST WINDS OF 50 MPH WITH GUSTS TO OVER 75 MPH
ARE EXPECTED TO DEVELOP OVERNIGHT. THESE WINDS WILL IMPACT SOUTH
PASS MUCH MORE THAN TOGWOTEE PASS. TRAVELLERS OVER HIGHWAY
28...SOUTH PASS...SHOULD BE PREPARED FOR THESE VERY HIGH WINDS
OVERNIGHT.

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 60 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

$$

WYZ019-300600-
/O.UPG.KRIW.HW.A.0009.061030T0500Z-061030T1200Z/
/O.EXB.KRIW.HW.W.0010.061030T0303Z-061030T1200Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
INCLUDING THE CITY OF...JEFFREY CITY
803 PM MST SUN OCT 29 2006

...HIGH WIND WARNING IN EFFECT UNTIL 5 AM MST MONDAY...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT UNTIL 5 AM MST MONDAY. THE HIGH WIND
WATCH IS NO LONGER IN EFFECT. 

VERY STRONG SOUTHWEST WINDS OF 40 MPH WITH GUSTS TO OVER 60 MPH
ARE EXPECTED TO DEVELOP ACROSS THE GREEN MOUNTAINS AND RATTLESNAKE
RANGES OVERNIGHT. TRAVELLERS ALONG HIGHWAYS 287 AND 135...SHOULD BE
PREPARED FOR THESE VERY STRONG WINDS OVERNIGHT.

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 60 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

$$

WYZ004-300600-
/O.EXB.KRIW.HW.W.0010.061030T0303Z-061030T1200Z/
NORTH BIG HORN BASIN-
INCLUDING THE CITIES OF...POWELL...LOVELL...GREYBULL...BASIN
803 PM MST SUN OCT 29 2006

...HIGH WIND WARNING IN EFFECT UNTIL 5 AM MST MONDAY...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT UNTIL 5 AM MST MONDAY. 

A VERY STRONG COLD FRONT WILL BRING STRONG NORTHERLY WINDS OF 40 MPH
WITH GUSTS TO OVER 60 MPH TO NORTHERN BIG HORN COUNTY
OVERNIGHT. AREAS FROM FRANNIE TO LOVELL WILL BE ESPECIALLY
SUSCEPTIBLE TO THESE STRONG WINDS. WINDS WILL BE 10 TO 15 MPH
LIGHTER IN THE GREYBULL AREA. TRAVELLERS SHOULD BE PREPARED FOR
THESE VERY STRONG WINDS OVERNIGHT.

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 60 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

$$

WYZ010-300600-
/O.EXB.KRIW.HW.W.0010.061030T0303Z-061030T1200Z/
NORTHEAST JOHNSON COUNTY-
INCLUDING THE CITY OF...BUFFALO
803 PM MST SUN OCT 29 2006

...HIGH WIND WARNING IN EFFECT UNTIL 5 AM MST MONDAY...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT UNTIL 5 AM MST MONDAY. 

A VERY STRONG COLD FRONT WILL BRING STRONG NORTHERLY WINDS OF 40 MPH
WITH GUSTS TO OVER 60 MPH TO NORTHERN JOHNSON COUNTY OVERNIGHT.
AREAS NEAR BUFFALO WILL RECEIVE THE STRONGEST WINDS. TRAVELLERS
ALONG INTERSTATE 90 SHOULD BE PREPARED FOR THESE VERY STRONG WINDS
OVERNIGHT.

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 60 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

$$

WYZ002-300600-
/O.CON.KRIW.HW.W.0010.000000T0000Z-061030T0600Z/
ABSAROKA MOUNTAINS-
803 PM MST SUN OCT 29 2006

...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 WINDS ARE EXPECTED TO CONTINUE INCREASING INTO THE EVENING
HOURS. SUSTAINED WEST WINDS OF 40 TO 50 MPH WITH GUSTS OF 70 TO
80 MPH ARE EXPECTED THROUGH THE EVENING HOURS...ESPECIALLY OVER
RIDGES...OPEN AREAS AND WEST FACING SLOPES. THESE HIGH WINDS WILL
IMPACT THE CHIEF JOSEPH HIGHWAY AS WELL AS HIGHWAYS 14...16 AND
20 WEST OF CODY. THERE IS THE POTENTIAL FOR DANGEROUS CROSS WINDS
ESPECIALLY IF DRIVING A HIGH PROFILE VEHICLE.

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 60 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

$$
000 
WWUS75 KRIW 300557
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
1057 PM MST SUN OCT 29 2006

...VERY STRONG WINDS WILL OCCUR ACROSS THE ABSAROKA...WIND
RIVER...GREEN MOUNTAINS IN ADDITION TO BIG HORN AND NORTHERN
JOHNSON COUNTY TONIGHT...

.A VERY STRONG COLD FRONT WILL COMBINE WITH VERY STRONG WINDS AT
MOUNTAIN TOP LEVEL TO PRODUCE HIGH WINDS IN THE ABSAROKA...WIND
RIVER...AND GREEN MOUNTAINS TONIGHT.  ADDITIONALLY...WINDS WILL
BE VERY STRONG ACROSS THE LOWER ELEVATIONS OF BIG HORN AND
NORTHERN JOHNSON COUNTY LATE THIS EVENING AS A STRONG COLD FRONT
MOVES THROUGH.

WYZ002-300800-
/O.EXT.KRIW.HW.W.0010.000000T0000Z-061030T0800Z/
ABSAROKA MOUNTAINS-
1057 PM MST SUN OCT 29 2006

...HIGH WIND WARNING NOW IN EFFECT UNTIL 1 AM MST MONDAY...

THE HIGH WIND WARNING IS NOW IN EFFECT UNTIL 1 AM MST MONDAY. 

STRONG WEST WINDS WILL PERSIST THROUGH 1 AM MST MONDAY. SUSTAINED
WEST WINDS OF 40 TO 50 MPH WITH GUSTS TO 70 TO 80 MPH ARE CURRENTLY
OCCURRING IN THE ABSAROKAS ABOVE 10000 FEET. AREAS THAT WILL ARE
ESPECIALLY SUSCEPTIBLE INCLUDE RIDGES...OPEN AREAS AND WEST FACING
SLOPES. THESE HIGH WINDS WILL IMPACT THE CHIEF JOSEPH HIGHWAY AS
WELL AS HIGHWAYS 14...16 AND 20 WEST OF CODY. THERE IS THE
POTENTIAL FOR DANGEROUS CROSS WINDS ESPECIALLY IF DRIVING A HIGH
PROFILE VEHICLE.

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 60 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

$$

WYZ015-300800-
/O.CON.KRIW.HW.W.0010.000000T0000Z-061030T1200Z/
WIND RIVER MOUNTAINS EAST-
1057 PM MST SUN OCT 29 2006

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY. 

VERY STRONG SOUTHWEST WINDS OF 50 MPH WITH GUSTS TO OVER 75 MPH
ARE EXPECTED TO DEVELOP OVERNIGHT. THESE WINDS WILL IMPACT SOUTH
PASS MUCH MORE THAN TOGWOTEE PASS. TRAVELLERS OVER HIGHWAY 28...
SOUTH PASS...SHOULD BE PREPARED FOR THESE VERY HIGH WINDS
OVERNIGHT.

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 60 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

$$

WYZ019-300800-
/O.CON.KRIW.HW.W.0010.000000T0000Z-061030T1200Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
INCLUDING THE CITY OF...JEFFREY CITY
1057 PM MST SUN OCT 29 2006

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY. 

VERY STRONG SOUTHWEST WINDS OF 40 MPH WITH GUSTS TO OVER 60 MPH
WILL DEVELOP ACROSS THE GREEN MOUNTAINS AND RATTLESNAKE RANGES
OVERNIGHT. TRAVELLERS ALONG HIGHWAYS 287 AND 135...SHOULD BE
PREPARED FOR THESE VERY STRONG WINDS OVERNIGHT.

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 60 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

$$

WYZ004-300800-
/O.CON.KRIW.HW.W.0010.000000T0000Z-061030T1200Z/
NORTH BIG HORN BASIN-
INCLUDING THE CITIES OF...POWELL...LOVELL...GREYBULL...BASIN
1057 PM MST SUN OCT 29 2006

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY. 

A VERY STRONG COLD FRONT WILL BRING STRONG NORTHERLY WINDS OF
40 MPH WITH GUSTS TO OVER 60 MPH TO NORTHERN BIG HORN COUNTY
OVERNIGHT. AREAS FROM FRANNIE TO LOVELL WILL BE ESPECIALLY
SUSCEPTIBLE TO THESE STRONG WINDS. WINDS WILL BE 10 TO 15 MPH
LIGHTER IN THE GREYBULL AREA. TRAVELLERS SHOULD BE PREPARED FOR
THESE VERY STRONG WINDS OVERNIGHT.

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 60 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

$$

WYZ010-300800-
/O.CON.KRIW.HW.W.0010.000000T0000Z-061030T1200Z/
NORTHEAST JOHNSON COUNTY-
INCLUDING THE CITY OF...BUFFALO
1057 PM MST SUN OCT 29 2006

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY. 

A VERY STRONG COLD FRONT WILL BRING STRONG NORTHERLY WINDS OF
40 MPH WITH GUSTS TO OVER 60 MPH TO NORTHERN JOHNSON COUNTY
OVERNIGHT. AREAS NEAR BUFFALO WILL RECEIVE THE STRONGEST WINDS.
TRAVELLERS ALONG INTERSTATE 90 SHOULD BE PREPARED FOR THESE VERY
STRONG WINDS OVERNIGHT.

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 60 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

$$
000 
WWUS75 KRIW 300751
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
1251 AM MST MON OCT 30 2006

...VERY STRONG WINDS ARE EXPECTED IN THE WIND RIVER AND GREEN
MOUNTAINS IN ADDITION TO BIG HORN AND NORTHERN JOHNSON COUNTY
THROUGH 5 AM MST...

.A VERY STRONG COLD FRONT WILL COMBINE WITH VERY STRONG WINDS AT
MOUNTAIN TOP LEVEL TO PRODUCE HIGH WINDS IN THE WIND RIVER...AND
GREEN MOUNTAINS THROUGH 5 AM MST. ADDITIONALLY...WINDS WILL BE VERY
STRONG ACROSS THE LOWER ELEVATIONS OF BIG HORN AND NORTHERN
JOHNSON COUNTY THROUGH EARLY THIS MORNING AS A STRONG COLD FRONT MOVES
THROUGH.

WYZ002-300900-
/O.EXP.KRIW.HW.W.0010.000000T0000Z-061030T0800Z/
ABSAROKA MOUNTAINS-
1251 AM MST MON OCT 30 2006

...HIGH WIND WARNING WILL EXPIRE AT 1 AM MST EARLY THIS MORNING...

WINDS WILL CONTINUE TO DECREASE BELOW HIGH WIND CRITERIA EARLY
THIS MORNING. THEREFORE THE HIGH WIND WARNING WILL EXPIRE AT 1 AM
MST EARLY THIS MORNING. 

$$

WYZ015-301100-
/O.CON.KRIW.HW.W.0010.000000T0000Z-061030T1200Z/
WIND RIVER MOUNTAINS EAST-
1251 AM MST MON OCT 30 2006

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS
MORNING...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS
MORNING. 

VERY STRONG SOUTHWEST WINDS OF 50 MPH WITH GUSTS TO OVER 75 MPH
ARE EXPECTED TO DEVELOP OVERNIGHT. THESE WINDS WILL IMPACT SOUTH
PASS MUCH MORE THAN TOGWOTEE PASS. TRAVELLERS OVER HIGHWAY 28...
SOUTH PASS...SHOULD BE PREPARED FOR THESE VERY HIGH WINDS
OVERNIGHT.

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 60 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

$$

WYZ019-301100-
/O.CON.KRIW.HW.W.0010.000000T0000Z-061030T1200Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
INCLUDING THE CITY OF...JEFFREY CITY
1251 AM MST MON OCT 30 2006

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS
MORNING...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS
MORNING. 

VERY STRONG SOUTHWEST WINDS OF 40 MPH WITH GUSTS TO OVER 60 MPH
WILL CONTINUE TO OCCUR ACROSS THE GREEN MOUNTAINS AND RATTLESNAKE
RANGE OVERNIGHT. TRAVELLERS ALONG HIGHWAYS 287 AND 135...SHOULD
BE PREPARED FOR THESE VERY STRONG WINDS EARLY THIS MORNING.

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 60 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

$$

WYZ004-301100-
/O.CON.KRIW.HW.W.0010.000000T0000Z-061030T1200Z/
NORTH BIG HORN BASIN-
INCLUDING THE CITIES OF...POWELL...LOVELL...GREYBULL...BASIN
1251 AM MST MON OCT 30 2006

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS
MORNING...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS
MORNING. 

A VERY STRONG COLD FRONT WILL BRING NORTHERLY WINDS OF 40 MPH
WITH GUSTS TO OVER 60 MPH TO NORTHERN BIG HORN COUNTY OVERNIGHT.
AREAS FROM FRANNIE TO LOVELL WILL BE ESPECIALLY SUSCEPTIBLE TO
THESE STRONG WINDS. WIND GUSTS TO 50 MPH HAVE ALREADY BEEN
RECORDED IN THE POWELL AREA. WINDS WILL BE 10 TO 15 MPH LIGHTER IN
THE GREYBULL AREA. TRAVELLERS SHOULD BE PREPARED FOR THESE VERY
STRONG WINDS OVERNIGHT.

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 60 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

$$

WYZ010-301100-
/O.CON.KRIW.HW.W.0010.000000T0000Z-061030T1200Z/
NORTHEAST JOHNSON COUNTY-
INCLUDING THE CITY OF...BUFFALO
1251 AM MST MON OCT 30 2006

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS
MORNING...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS
MORNING. 

A VERY STRONG COLD FRONT WILL BRING NORTHERLY WINDS OF 40 MPH
WITH GUSTS TO OVER 60 MPH TO NORTHERN JOHNSON COUNTY OVERNIGHT.
WIND GUSTS TO 50 MPH HAVE ALREADY BEEN RECORDED IN THE PINEY CREEK
AREA NORTH OF BUFFALO. TRAVELLERS ALONG INTERSTATE 90 SHOULD BE
PREPARED FOR THESE VERY STRONG WINDS OVERNIGHT.

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 60 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

$$
000 
WWUS75 KRIW 300951
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
251 AM MST MON OCT 30 2006

...VERY STRONG WINDS ARE EXPECTED IN THE WIND RIVER AND GREEN
MOUNTAINS IN ADDITION TO BIG HORN AND NORTHERN JOHNSON COUNTY
THROUGH 8 AM MST...

.A VERY STRONG COLD FRONT WILL COMBINE WITH VERY STRONG WINDS AT
MOUNTAIN TOP LEVEL TO PRODUCE HIGH WINDS IN THE WIND RIVER...AND
GREEN MOUNTAINS THROUGH 8 AM MST. ADDITIONALLY...WINDS WILL BE
VERY STRONG ACROSS THE LOWER ELEVATIONS OF BIG HORN AND NORTHERN
JOHNSON COUNTY THROUGH EARLY THIS MORNING AS A STRONG COLD FRONT
MOVES THROUGH.

WYZ015-301500-
/O.EXT.KRIW.HW.W.0010.000000T0000Z-061030T1500Z/
WIND RIVER MOUNTAINS EAST-
251 AM MST MON OCT 30 2006

...HIGH WIND WARNING NOW IN EFFECT UNTIL 8 AM MST THIS MORNING...

THE HIGH WIND WARNING IS NOW IN EFFECT UNTIL 8 AM MST THIS
MORNING. 

VERY STRONG SOUTHWEST WINDS OF 50 MPH WITH GUSTS TO OVER 75 MPH
ARE EXPECTED TO DEVELOP EARLY THIS MORNING. THESE WINDS WILL IMPACT
SOUTH PASS MUCH MORE THAN TOGWOTEE PASS. TRAVELLERS OVER HIGHWAY
28... SOUTH PASS...SHOULD BE PREPARED FOR THESE VERY HIGH WINDS
EARLY THIS MORNING.

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 50 MPH OR GUSTS
OF 75 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

$$

WYZ019-301500-
/O.EXT.KRIW.HW.W.0010.000000T0000Z-061030T1500Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
INCLUDING THE CITY OF...JEFFREY CITY
251 AM MST MON OCT 30 2006

...HIGH WIND WARNING NOW IN EFFECT UNTIL 8 AM MST THIS MORNING...

THE HIGH WIND WARNING IS NOW IN EFFECT UNTIL 8 AM MST THIS
MORNING. 

VERY STRONG SOUTHWEST WINDS OF 40 MPH WITH GUSTS TO OVER 60 MPH
WILL CONTINUE TO OCCUR ACROSS THE GREEN MOUNTAINS AND RATTLESNAKE
RANGE EARLY THIS MORNING. TRAVELLERS ALONG HIGHWAYS 287 AND
135...SHOULD BE PREPARED FOR THESE VERY STRONG WINDS THROUGH
SUNRISE.

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 60 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

$$

WYZ004-301500-
/O.EXT.KRIW.HW.W.0010.000000T0000Z-061030T1500Z/
NORTH BIG HORN BASIN-
INCLUDING THE CITIES OF...POWELL...LOVELL...GREYBULL...BASIN
251 AM MST MON OCT 30 2006

...HIGH WIND WARNING NOW IN EFFECT UNTIL 8 AM MST THIS MORNING...

THE HIGH WIND WARNING IS NOW IN EFFECT UNTIL 8 AM MST THIS
MORNING. 

A VERY STRONG COLD FRONT WILL BRING NORTHERLY WINDS OF 40 MPH
WITH GUSTS TO OVER 60 MPH TO NORTHERN BIG HORN COUNTY EARLY THIS
MORNING. AREAS FROM FRANNIE TO LOVELL WILL BE ESPECIALLY
SUSCEPTIBLE TO THESE STRONG WINDS. WIND GUSTS TO 50 MPH HAVE
ALREADY BEEN RECORDED IN THE POWELL AREA. WINDS WILL BE 10 TO 15
MPH LIGHTER IN THE GREYBULL AREA. TRAVELLERS SHOULD BE PREPARED
FOR THESE VERY STRONG WINDS EARLY THIS MORNING.

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 60 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

$$

WYZ010-301500-
/O.EXT.KRIW.HW.W.0010.000000T0000Z-061030T1500Z/
NORTHEAST JOHNSON COUNTY-
INCLUDING THE CITY OF...BUFFALO
251 AM MST MON OCT 30 2006

...HIGH WIND WARNING NOW IN EFFECT UNTIL 8 AM MST THIS MORNING...

THE HIGH WIND WARNING IS NOW IN EFFECT UNTIL 8 AM MST THIS
MORNING. 

A VERY STRONG COLD FRONT WILL BRING NORTHERLY WINDS OF 40 MPH
WITH GUSTS TO OVER 60 MPH TO NORTHERN JOHNSON COUNTY EARLY THIS
MORNING. WIND GUSTS TO 50 MPH HAVE ALREADY BEEN RECORDED IN THE
PINEY CREEK AND BUFFALO AREAS THIS MORNING. TRAVELLERS ALONG
INTERSTATE 90 SHOULD BE PREPARED FOR THESE VERY STRONG WINDS
OVERNIGHT.

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 60 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

$$
000 
WWUS75 KRIW 301329
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
629 AM MST MON OCT 30 2006


WYZ004-010-015-019-301430-
/O.CAN.KRIW.HW.W.0010.000000T0000Z-061030T1500Z/
NORTH BIG HORN BASIN-NORTHEAST JOHNSON COUNTY-
WIND RIVER MOUNTAINS EAST-GREEN MOUNTAINS AND RATTLESNAKE RANGE-
INCLUDING THE CITIES OF...POWELL...LOVELL...GREYBULL...BASIN...
BUFFALO...JEFFREY CITY
629 AM MST MON OCT 30 2006

...HIGH WIND WARNING IS CANCELLED...

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

WIND SPEEDS HAVE DECREASED TO BELOW HIGH WIND CRITERIA. THEREFORE
THE HIGH WIND WARNING HAS BEEN CANCELLED.

IN NORTHERN JOHNSON COUNTY...A NORTHWEST WIND OF 25 TO 35 MPH WILL
PERSIST THROUGH THE MORNING HOURS WITH GUSTS BETWEEN 40 AND 50 MPH.

IN NORTHERN BIG HORN BASIN...AREAS OF NORTHWEST WIND AT 20 TO 30
MPH WITH GUSTS TO 40 MPH WILL OCCUR THIS MORNING. 

IN THE GREEN MOUNTAINS AND RATTLESNAKE RANGE...A NORTH OR NORTHWEST
WIND WILL OCCUR AT 20 TO 30 MPH WITH GUSTS TO 40 MPH TODAY.

ALONG THE EAST SLOPES OF THE WIND RIVER MOUNTAINS ABOVE 7500 FEET...A
NORTHWEST WIND OF 30 TO 40 MPH WILL OCCUR WITH GUSTS TO 60 MPH TODAY.
OVER AND NEAR SOUTH PASS...A NORTHWEST WIND OF 25 TO 35 MPH WILL OCCUR
WITH GUSTS TO 45 MPH TODAY.

TRAVELERS AND MORNING COMMUTERS SHOULD BE PREPARED FOR GUSTY WIND TODAY.

$$

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 Oct 29, 2:20 PM MST, 47 minutes earlier.

Area forecast discussion, Oct 29, 2:20 PM MST, 47 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RIVERTON WY
220 PM MST SUN OCT 29 2006

.SHORT TERM...TONIGHT THROUGH WEDNESDAY...
ACTIVE SHORT TERM PERIOD AS IMPRESSIVE COLD FRONT CONTINUES TO SLIDE
SOUTH INTO CENTRAL MONTANA WELL AHEAD OF ANY MODEL PROJECTIONS.
INCREASING SURFACE GRADIENT AND MID LEVEL WINDS ARE LEADING TO
INCREASING WINDS ACROSS THE ABSAROKA MOUNTAINS THIS AFTERNOON. CHIEF
JOSEPH WAS ALREADY GUSTING 55 TO 60 MPH BETWEEN 1 AND 2 PM THIS
AFTERNOON. MODELS ARE NOT AS BULLISH ON THE H7 WINDS AS EARLIER
RUNS BUT MY FEELING IS THAT DUE TO VERY IMPRESSIVE THERMAL GRADIENT
WITH THIS SYSTEM THAT THE WINDS ARE UNDERDONE. H7 TEMPERATURES ARE
AT LEAST +5C TO +7C THIS AFTERNOON ACROSS NRN WY WITH -15C LIKELY
MOVING INTO NWRN MT. SINCE CHIEF JOSEPH IS ALREADY GUSTING TO 60
MPH...THERE IS A DECENT LIKELIHOOD THAT THEY WILL GUST OVER 75 MPH
WITHIN THE NEXT 2 TO 4 HOURS. ANOTHER AREA OF CONCERN FOR HIGH
WINDS TONIGHT WILL BE THE EAST SLOPE OF THE WIND RIVER MOUNTAINS
WHERE FAVORABLE SOUTHWEST DIRECTION EXISTS COMBINED WITH H7 WINDS
FORECAST OVER 55KT BUT WITH 70-80 KTS FORECAST AT MOUNTAIN TOP.
COMBINE THIS WITH SINKING MOTION AND WE COULD SEE SOME OF THESE
STRONGER WINDS SURFACE LATER THIS EVENING OVER OVERNIGHT. WILL
ISSUE A HIGH WIND WATCH FOR THE EAST SLOPE OF THE WIND RIVER
MOUNTAINS FROM 10PM TONIGHT TO 5AM MONDAY. THE OTHER AREA IS OUR
FAVORED ZONE 19...THE GREEN MOUNTAINS AND RATTLESNAKE RANGE...WHERE
H7 WINDS OVER 50KTS WILL COMBINE WITH UP TO 15MB OF GRADIENT
BETWEEN RKS AND GCC. 20MB WOULD LEAD TO HIGH WINDS IN CASPER UNDER
THIS SCENARIO. FALES ROCK IS ALREADY GUSTING TO 50 MPH AND THIS
WILL LIKELY INCREASE LATER ON. I WILL LET THE EVENING CREW SEE THE
LATEST MODEL RUNS AND OBSERVATIONS TO SEE IF THESE TWO AREAS NEED
TO BE UPGRADED TO A WARNING. THE POTENTIAL IS THERE.

THE COLD FRONT WILL RACE INTO THE FAR NRN WYOMING NEAR CODY AT 04Z
AT ITS CURRENT PACE AND TO RIVERTON BY 09Z ACCOUNTING FOR SOME
ACCELERATION AFTER DARK. THIS IS AT LEAST 4-6 HOURS AHEAD OF ANY
GUIDANCE. SOME FAR...THROUGH 2 PM...NO DAYTIME SLOWING HAS
BEEN NOTED. THE PACIFIC PORTION OF THIS FRONT IS STILL A WAYS OUT
FROM NRN IDAHO INTO CNTRL OREGON. LIGHT SNOW WILL LIKELY SPREAD INTO
THE NWRN MOUNTAINS LATER THIS EVENING WITH SOME LIGHT SNOW
DEVELOPING BEHIND OUR CANADIAN COLD FRONT A LITTLE AFTER THAT.
RIGHT ENTRANCE REGION OF THE JET IS NEARBY BUT FORECAST UPPER
DIVERGENCE IS RATHER FLEETING. STRONG FORCING WITH THE UPPER TROUGH
AND STRONG VORT CENTER COMBINED WITH FRONTAL FORCING AND
OROGRAPHICS SHOULD PROVIDE A DECENT SHOT OF SNOW ACROSS THE NORTHERN
MOUNTAINS AND A BRIEF SHOT TO THE LOWER ELEVATIONS. DYNAMICS ARE
LESS OF AN INFLUENCE FURTHER SOUTH BUT STRENGTH OF FRONTAL FORCING
AND BRIEF UPSLOPE SHOULD BE ENOUGH FOR THE CHANCE POPS WE HAVE IN
ACROSS THE LOWER ELEVATIONS OF CENTRAL WYOMING.

AIRMASS IS QUITE COLD AND NO DOUBT THIS WILL PRODUCE THE COLDEST AIR
OF THE SEASON OVER THE NEXT COUPLE DAYS...ESPECIALLY THE OVERNIGHT
LOWS. THE ONLY THING THAT MIGHT HELP FOR TUESDAY NIGHT IS THE NEXT
WEAK SYSTEM THAT SLIDES DOWN IN THE NORTHWEST FLOW. A WEAK COLD
FRONT DROPPING SOUTH WITH THIS COULD KEEP THE AIR MIXED UP JUST
ENOUGH TO AVOID THE COLDEST LOWS OF TUESDAY MORNING. CONTINUED
TREND OF LOWERING THE LOWS FOR TUESDAY AND WEDNESDAY MORNING. THE
NAM IS MUCH COLDER WEST OF THE DIVIDE AND WE GENERALLY SPLIT THE
DIFFERENCE FOR MOST AREAS.

.LONG TERM...WEDNESDAY NIGHT THROUGH SUNDAY...
THE COLDEST AIR OF THE SEASON WILL BE SLOW TO MODIFY...BUT A GRADUAL
WARMING TREND IS EXPECTED DURING THE LATTER HALF OF THIS WEEK...AS
THE LONGWAVE TROUGH AND COLDEST AIR SHIFTS EAST...AS A FLAT/DIRTY
RIDGE BUILDS INTO THE ROCKIES.  TEMPERATURES ARE EXPECTED BACK TO
SEASONAL LEVELS BY FRIDAY...WITH 700 MB TEMPERATURES NEAR ZERO
DEGREES CELSIUS.  DRY WEATHER IS EXPECTED WEDNESDAY AND THURSDAY...
BUT AS THE AREA TRANSITIONS TO A FLAT/DIRTY RIDGING ALOFT...CANNOT
RULE OUT A FEW WEAK DISTURBANCES AFFECTING THE AREA.  TIMING OF
THESE FEATURES THIS FAR OUT IS HARD AT BEST...BUT WILL KEEP SLIGHT
POPS ONGOING THURSDAY NIGHT THRU FRIDAY NIGHT...MAINLY FOR THE
WESTERN/NORTHERN MOUNTAINS...WITH A LULL SATURDAY/SATURDAY NIGHT AS
THE RIDGE AMPLIFIES OVER THE ROCKIES IN RESPONSE TO A UPSTREAM
TROUGH.  THIS TROUGH COULD BEGIN TO AFFECT THE AREA ON SUNDAY.

&&

RIW WATCHES/WARNINGS/ADVISORIES...HIGH WIND WARNING FOR WYO ZONE 2
THROUGH 11 PM TONIGHT. HIGH WIND WATCH FOR WYO ZONES 15 AND 19
FROM 10 PM TONIGHT THROUGH 5 AM MONDAY MORNING.

&&

SHORT TERM...SKRBAC
LONG TERM...WM
Hazardous weather outlook, Oct 29, 5:00 AM MST, 10 hours 7 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RIVERTON WY
500 AM MST SUN OCT 29 2006

WYZ001>020-022>030-301200-
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-
500 AM MST SUN OCT 29 2006

...HIGH WIND WATCH FOR THE ABSAROKA MOUNTAINS LATE THIS AFTERNOON
AND EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING.

.DAY ONE...TODAY AND TONIGHT...

WEST WINDS MAY INCREASE TO 50 MPH WITH GUSTS TO 75 MPH ACROSS THE
ABSAROKA MOUNTAINS THIS EVENING. ELSEWHERE EXPECT SOUTHWEST WINDS OF
25 TO 35 MPH WITH GUSTS TO 45 MPH IN THE GREEN MOUNTAINS AND IN
NATRONA COUNTY INCLUDING CASPER TODAY. SNOW WILL DEVELOP ACROSS
NORTHERN WYOMING TONIGHT AS A PACIFIC UPPER LEVEL DISTURBANCE
APPROACHES FROM THE NORTHWEST AND A COLD FRONT APPROACHES FROM THE
NORTH. 2 TO 3 INCHES OF SNOWFALL IS EXPECTED ACROSS THE NORTHERN
MOUNTAINS TONIGHT. TRAVELLERS AND...OR HUNTERS WILL NEED TO KEEP
ABREAST ON THE LATEST INFORMATION ON THIS DEVELOPING STORM SYSTEM.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY...

A STRONG COLD FRONT WILL BE PUSHING SOUTH ACROSS WYOMING MONDAY.
THIS FRONT WILL BRING SNOW TO MUCH OF WYOMING BUT THE MOST SNOWFALL
WILL OCCUR ACROSS THE NORTHERN MOUNTAINS WHERE A STORM TOTAL OF 3 TO
6 INCHES IS EXPECTED. SOME LIGHT SNOW WILL MAKE ITS WAY SOUTH WITH
THE FRONT TO CENTRAL WYOMING WITH THE LEAST SNOWFALL EXPECTED IN
SOUTHERN WYOMING. WEST WINDS OF 20 TO 40 MPH WILL BLOW ACROSS
SWEETWATER COUNTY MONDAY. BEHIND THE FRONT EXPECT NORTHERLY WIND
GUSTS OF 55 MPH ACROSS THE WIND RIVER BASIN...THE GREEN MOUNTAINS
AND ACROSS JOHNSON COUNTY MONDAY. TRAVELLERS AND...OR HUNTERS WILL
NEED TO KEEP ABREAST ON THE LATEST INFORMATION ON THIS DEVELOPING
STORM SYSTEM. THE COLDEST AIR OF THE SEASON IS EXPECTED TUESDAY AND
WEDNESDAY...WITH LOW TEMPERATURES EXPECTED TO DIP INTO THE
TEENS IN MOST LOWER ELEVATIONS EAST OF THE CONTINENTAL DIVIDE WITH
SINGLE DIGITS EXPECTED IN THE WESTERN VALLEYS.

SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ENCOURAGED TO REPORT WINDS IN EXCESS OF 50 MPH AS WELL
AS ANY SNOWFALL AMOUNTS. THANK YOU.

TRIW

The office that day

Everything else NWS Riverton, WY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 29, 3:07 PM MSTHigh Wind WatchRIWFremont, Natrona, Sublette, Sweetwater5 hr

Nearby

High Wind Warnings in Wyoming, 2006Every high wind warning in 2006

Sources

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