Red Flag Warning 8, NWS Riverton, WY

000 
WWUS85 KRIW 211802
RFWRIW

RED FLAG WARNING
NATIONAL WEATHER SERVICE RIVERTON WY
1202 PM MDT THU AUG 21 2008

...RED FLAG WARNING FOR THIS AFTERNOON AND EVENING FOR MUCH OF
WESTERN AND CENTRAL WYOMING...

.AN APPROACHING TROUGH WILL BRING WARM...DRY AND BREEZY
CONDITIONS TO MUCH OF THE AREA TODAY. A STRONG COLD FRONT WILL
PUSH INTO NORTHERN WYOMING THIS EVENING BRINGING A FEW
THUNDERSTORMS ALONG WITH A SHARP WIND SHIFT. THIS WEATHER WILL
RESULT IN CRITICAL FIRE WEATHER CONDITIONS THIS AFTERNOON AND
EVENING...INCLUDING THE POTENTIAL FOR NEW FIRE STARTS ACROSS THE
NORTH AND EXTREME FIRE BEHAVIOR TO ANY EXISTING FIRES.

WYZ277-279-280-289-220300-
/O.CON.KRIW.FW.W.0008.000000T0000Z-080822T0300Z/
LINCOLN AND UINTA COUNTIES / LOWER ELEVATIONS-
SWEETWATER COUNTY / ROCK SPRINGS BLM / FLAMING GORGE NRA-
NATRONA COUNTY / CASPER BLM-
GRANITE / GREEN / FERRIS / RATTLESNAKE MOUNTAINS-
1202 PM MDT THU AUG 21 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING.

SOUTHWEST WILL CONTINUE TO INCREASE...WITH WIND SPEEDS OF OF 20
TO 30 MPH GUSTING TO NEAR 40 MPH THIS AFTERNOON. THESE GUSTY WINDS WILL
COMBINE WITH WARM TEMPERATURES AND RELATIVE HUMIDITY OF 10 TO 15 PERCENT
THIS AFTERNOON AND EARLY EVENING. THIS WILL BRING A HIGH POTENTIAL
FOR EXTREME FIRE WEATHER CONDITIONS INCLUDING EXTENSIVE SPOTTING
AND RAPID GROWTH POTENTIAL OF ANY EXISTING FIRES.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. CRITICALLY DRY
FUELS...COMBINED WITH STRONG WINDS...LOW RELATIVE HUMIDITY...AND
WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

$$

WYZ283-220300-
/O.CON.KRIW.FW.W.0008.000000T0000Z-080822T0300Z/
UPPER WIND RIVER BASIN / WIND RIVER BASIN-
1202 PM MDT THU AUG 21 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING.

SOUTHWEST TO WINDS OF 15 TO 25 MPH WITH GUSTS TO 30 MPH WILL
COMBINE WITH WARM TEMPERATURES AND RELATIVE HUMIDITY DIPPING TO
10 TO 15 PERCENT THIS AFTERNOON AND EARLY EVENING. THIS WILL BRING A 
HIGH POTENTIAL FOR EXTREME FIRE WEATHER CONDITIONS INCLUDING
EXTENSIVE SPOTTING AND RAPID GROWTH POTENTIAL OF ANY EXISTING
FIRES.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. CRITICALLY DRY
FUELS...COMBINED WITH STRONG WINDS...LOW RELATIVE HUMIDITY...AND
WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

$$

WYZ281-220300-
/O.CON.KRIW.FW.W.0008.000000T0000Z-080822T0300Z/
JOHNSON COUNTY / CASPER BLM-
1202 PM MDT THU AUG 21 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING.

SOUTHWEST TO WINDS OF 20 TO 30 MPH WITH GUSTS TO 40 MPH WILL
COMBINE WITH WARM TEMPERATURES AND RELATIVE HUMIDITY POTENTIALLY
DIPPING TO 10 TO 15 PERCENT THIS AFTERNOON AND EARLY EVENING. THIS
WILL BRING A HIGH POTENTIAL FOR EXTREME FIRE WEATHER CONDITIONS.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. CRITICALLY DRY
FUELS...COMBINED WITH STRONG WINDS...LOW RELATIVE HUMIDITY...AND
WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

$$

WYZ140-220300-
/O.CON.KRIW.FW.W.0008.000000T0000Z-080822T0600Z/
YELLOWSTONE NATIONAL PARK-
1202 PM MDT THU AUG 21 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT. 

REMOTE OBSERVATION EQUIPMENT NEAR SYLVAN PASS WERE RECORDING WIND
SPEEDS OF 40 TO 50 MPH WITH GUSTS NEAR 60 MPH AT 1130 AM. WIND
SPEEDS OF 20 TO 30 MPH PREVAILED ACROSS THE REST OF THE PARK.
ISOLATED THUNDERSTORMS WILL DEVELOP OVER THE PARK THIS AFTERNOON
WITH A FEW CLOUD TO GROUND LIGHTNING STRIKES POSSIBLY IGNITING NEW
FIRES. THE STRONG WINDS WILL RESULT IN THE EXTENSIVE SPOTTING AND
POSSIBLE RAPID GROWTH OF ANY EXISTING OR NEW FIRES. A COLD FRONT
WILL MOVE ACROSS THE AREA LATE THIS EVENING RESULTING IN A SHARP
WIND SHIFT FROM THE NORTH TO NORTHWEST.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. CRITICALLY DRY
FUELS...COMBINED WITH STRONG WINDS...LOW RELATIVE HUMIDITY...AND
WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

$$

WYZ276-285>287-220300-
/O.CON.KRIW.FW.W.0008.000000T0000Z-080822T0600Z/
CODY FOOTHILLS-SOUTH BIGHORN MOUNTAINS-
ABSAROKA MOUNTAINS / NORTH SHOSHONE NF-OWL CREEK MOUNTAINS-
1202 PM MDT THU AUG 21 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT. 

REMOTE OBSERVATION EQUIPMENT NEAR SYLVAN PASS WERE RECORDING WIND
SPEEDS OF 40 TO 50 MPH WITH GUSTS NEAR 60 MPH AT 1130 AM.
SOUTHWEST WIND AT 20 TO 30 MPH PREVAILED ACROSS THE REST OF THE
AREA. ISOLATED THUNDERSTORMS WILL DEVELOP OVER THE AREA THIS
AFTERNOON WITH A FEW CLOUD TO GROUND LIGHTNING STRIKES POSSIBLY
IGNITING NEW FIRES. THE STRONG WINDS WILL RESULT IN THE EXTENSIVE
SPOTTING AND POSSIBLE RAPID GROWTH OF ANY EXISTING OR NEW FIRES. A
COLD FRONT WILL MOVE ACROSS THE AREA LATE THIS EVENING RESULTING
IN A SHARP WIND SHIFT FROM THE NORTH TO NORTHWEST.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. CRITICALLY DRY
FUELS...COMBINED WITH STRONG WINDS...LOW RELATIVE HUMIDITY...AND
WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

$$

WYZ288-220300-
/O.CON.KRIW.FW.W.0008.000000T0000Z-080822T0600Z/
EAST WIND RIVER MOUNTAINS / SOUTH SHOSHONE NF-
1202 PM MDT THU AUG 21 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT. 

WEST TO SOUTHWEST WIND AT 20 TO 30 MPH WITH GUSTS TO 40 MPH WERE
OBSERVED ALONG THE EAST SLOPES AND SOUTH PASS AREA AT NOON. THESE
WINDS WILL CONTINUE TO INCREASE SLIGHTLY THIS AFTERNOON AND
COMBINE WITH RELATIVE HUMIDITY NEAR 15 PERCENT.  A COLD FRONT WILL
MOVE ACROSS THE AREA LATE THIS EVENING RESULTING IN A SHARP WIND
SHIFT FROM THE NORTH TO NORTHWEST. THESE CONDITIONS WILL RESULT
CRITICAL FIRE WEATHER CONDITIONS WITH EXTENSIVE SPOTTING AND RAPID
GROWTH OF ANY EXISTING FIRES. 

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. CRITICALLY DRY
FUELS...COMBINED WITH STRONG WINDS...LOW RELATIVE HUMIDITY...AND
WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

$$

AEM

000 
WWUS85 KRIW 212120
RFWRIW

RED FLAG WARNING
NATIONAL WEATHER SERVICE RIVERTON WY
320 PM MDT THU AUG 21 2008

...RED FLAG WARNING FOR THIS AFTERNOON AND EVENING FOR MUCH OF
WESTERN AND CENTRAL WYOMING...

.AN UPPER LOW PRESSURE SYSTEM WILL MOVE EAST ACROSS THE
MONTANA/CANADIAN BORDER TONIGHT. THIS SYSTEM WILL DRIVE A STRONG
COLD FRONT INTO NORTHERN WYOMING THIS EVENING AND INTO CENTRAL
WYOMING LATE TONIGHT. STRONG WEST TO SOUTHWEST WIND AND LOW
RELATIVE HUMIDITY WILL CONTINUE AHEAD OF THIS FRONT WITH A SHARP
WIND SHIFT FROM THE NORTH BEHIND THE FRONT. ISOLATED THUNDERSTORMS
ACROSS NORTHERN WYOMING COULD POTENTIALLY CAUSE NEW FIRE STARTS.

WYZ277-279-280-289-220300-
/O.CON.KRIW.FW.W.0008.000000T0000Z-080822T0300Z/
LINCOLN AND UINTA COUNTIES / LOWER ELEVATIONS-
SWEETWATER COUNTY / ROCK SPRINGS BLM / FLAMING GORGE NRA-
NATRONA COUNTY / CASPER BLM-
GRANITE / GREEN / FERRIS / RATTLESNAKE MOUNTAINS-
320 PM MDT THU AUG 21 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING.

SOUTHWEST WIND AT 20 TO 30 MPH GUSTING TO NEAR 40 MPH ALONG WITH
RELATIVE HUMIDITIES OF 10 TO 15 PERCENT WILL CONTINUE THROUGH
SUNSET. THIS WILL BRING A HIGH POTENTIAL FOR EXTREME FIRE WEATHER
CONDITIONS INCLUDING EXTENSIVE SPOTTING AND RAPID GROWTH POTENTIAL
OF ANY EXISTING FIRES. WINDS WILL DECREASE AFTER SUNSET ALONG WITH
SOME RECOVERY IN RELATIVE HUMIDITY. A COLD FRONT WILL MOVE SOUTH
ACROSS THE AREA BETWEEN MIDNIGHT AND 6 AM RESULTING IN A SHARP
WIND SHIFT FROM THE NORTH TO NORTHWEST.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. CRITICALLY DRY
FUELS...COMBINED WITH STRONG WINDS...LOW RELATIVE HUMIDITY...AND
WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

$$

WYZ283-220300-
/O.CON.KRIW.FW.W.0008.000000T0000Z-080822T0300Z/
UPPER WIND RIVER BASIN / WIND RIVER BASIN-
320 PM MDT THU AUG 21 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING.

SOUTHWEST WIND AT 15 TO 25 MPH GUSTING TO NEAR 30 MPH ALONG WITH
RELATIVE HUMIDITIES OF 10 TO 15 PERCENT WILL CONTINUE THROUGH
SUNSET. THIS WILL BRING A HIGH POTENTIAL FOR EXTREME FIRE WEATHER
CONDITIONS INCLUDING EXTENSIVE SPOTTING AND RAPID GROWTH POTENTIAL
OF ANY EXISTING FIRES. WINDS WILL DECREASE AFTER SUNSET ALONG WITH
SOME RECOVERY IN RELATIVE HUMIDITY. A COLD FRONT WILL MOVE SOUTH
ACROSS THE AREA AROUND MIDNIGHT RESULTING IN A SHARP WIND SHIFT
FROM THE NORTH.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. CRITICALLY DRY
FUELS...COMBINED WITH STRONG WINDS...LOW RELATIVE HUMIDITY...AND
WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

$$

WYZ281-220300-
/O.CON.KRIW.FW.W.0008.000000T0000Z-080822T0300Z/
JOHNSON COUNTY / CASPER BLM-
320 PM MDT THU AUG 21 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING.

SOUTHWEST WIND AT 15 TO 25 MPH GUSTING TO NEAR 30 MPH ALONG WITH
RELATIVE HUMIDITIES OF 10 TO 15 PERCENT WILL CONTINUE THROUGH
SUNSET. ISOLATED THUNDERSTORMS WILL BE POSSIBLE ACROSS NORTHEAST
JOHNSON COUNTY BRINGING THE POTENTIAL FOR NEW FIRE STARTS. THESE
CONDITIONS WILL BRING A HIGH POTENTIAL FOR EXTREME FIRE WEATHER
CONDITIONS INCLUDING EXTENSIVE SPOTTING AND RAPID GROWTH POTENTIAL
OF ANY EXISTING FIRES. A STRONG COLD FRONT WILL MOVE SOUTH ACROSS
THE AREA BETWEEN 6 PM AND 8 PM RESULTING IN A SHARP WIND SHIFT FROM
THE NORTH AT 15 TO 25 MPH WITH GUSTS TO 30 MPH. THESE NORTHERLY
WINDS WILL GRADUALLY DIMINISH EARLY FRIDAY MORNING.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. CRITICALLY DRY
FUELS...COMBINED WITH STRONG WINDS...LOW RELATIVE HUMIDITY...AND
WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

$$

WYZ140-220600-
/O.CON.KRIW.FW.W.0008.000000T0000Z-080822T0600Z/
YELLOWSTONE NATIONAL PARK-
320 PM MDT THU AUG 21 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT. 

REMOTE OBSERVATION EQUIPMENT NEAR SYLVAN PASS WERE RECORDING WIND
SPEEDS OF 25 TO 30 MPH WITH GUSTS TO 50 MPH AT 3 PM. WIND SPEEDS
OF 20 TO 30 MPH WITH GUSTS NEAR 40 MPH PREVAILED ACROSS THE REST
OF THE PARK. ISOLATED THUNDERSTORMS WILL BE POSSIBLE OVER THE
PARK THIS EVENING WITH A FEW CLOUD TO GROUND LIGHTNING STRIKES
POSSIBLY IGNITING NEW FIRES. THE STRONG WINDS WILL RESULT IN THE
EXTENSIVE SPOTTING AND POSSIBLE RAPID GROWTH OF ANY EXISTING OR
NEW FIRES. A COLD FRONT WILL MOVE ACROSS THE AREA LATE THIS
BETWEEN 7 PM AND 10 PM RESULTING IN A SHARP WIND SHIFT FROM THE
NORTH TO NORTHWEST.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. CRITICALLY DRY
FUELS...COMBINED WITH STRONG WINDS...LOW RELATIVE HUMIDITY...AND
WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

$$

WYZ276-285>287-220600-
/O.CON.KRIW.FW.W.0008.000000T0000Z-080822T0600Z/
CODY FOOTHILLS-SOUTH BIGHORN MOUNTAINS-
ABSAROKA MOUNTAINS / NORTH SHOSHONE NF-OWL CREEK MOUNTAINS-
320 PM MDT THU AUG 21 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT. 

REMOTE OBSERVATION EQUIPMENT NEAR SYLVAN PASS AND THE NORTHERN
ABSAROKA MOUNTAINS WERE RECORDING WIND SPEEDS OF 25 TO 35 MPH
WITH GUSTS OF 50 TO 55 MPH AT 3 PM. ISOLATED THUNDERSTORMS WILL
BE POSSIBLE OVER THE AREA THIS EVENING WITH A FEW CLOUD TO GROUND
LIGHTNING STRIKES POSSIBLY IGNITING NEW FIRES. THE STRONG WINDS
WILL RESULT IN THE EXTENSIVE SPOTTING AND POSSIBLE RAPID GROWTH OF
ANY EXISTING OR NEW FIRES. A COLD FRONT WILL MOVE ACROSS THE AREA
BETWEEN 7 PM AND 10 PM THIS EVENING RESULTING IN A SHARP WIND
SHIFT FROM THE NORTH AT 15 TO 25 MPH WITH THESE WINDS GRADUALLY
DIMINISHING EARLY FRIDAY MORNING.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. CRITICALLY DRY
FUELS...COMBINED WITH STRONG WINDS...LOW RELATIVE HUMIDITY...AND
WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

$$

WYZ288-220600-
/O.CON.KRIW.FW.W.0008.000000T0000Z-080822T0600Z/
EAST WIND RIVER MOUNTAINS / SOUTH SHOSHONE NF-
320 PM MDT THU AUG 21 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT. 

WEST TO SOUTHWEST WIND AT 20 TO 30 MPH WITH GUSTS OF 40 TO 50 MPH WERE
OBSERVED ALONG THE EAST SLOPES AND SOUTH PASS AREA AT NOON. THESE
WINDS WILL CONTINUE THROUGH EARLY EVENING BEFORE DIMINISHING
SHORTLY AFTER SUNSET. THESE STRONG WINDS WILL COMBINE WITH
LOW RELATIVE HUMIDITY OF 15 TO 20 PERCENT. THESE CONDITIONS WILL
RESULT CRITICAL FIRE WEATHER CONDITIONS WITH EXTENSIVE SPOTTING
AND RAPID GROWTH OF ANY EXISTING FIRES. A COLD FRONT WILL MOVE
ACROSS THE AREA AROUND MIDNIGHT RESULTING IN A WIND SHIFT FROM THE
NORTH TO NORTHWEST.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. CRITICALLY DRY
FUELS...COMBINED WITH STRONG WINDS...LOW RELATIVE HUMIDITY...AND
WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

$$

AEM

000 
WWUS85 KRIW 220259
RFWRIW

RED FLAG WARNING
NATIONAL WEATHER SERVICE RIVERTON WY
859 PM MDT THU AUG 21 2008

...RED FLAG WARNING FOR THROUGH MIDNIGHT FOR MUCH OF NORTHWEST WYOMING...

.AN UPPER LOW PRESSURE SYSTEM WILL MOVE EAST ACROSS THE
MONTANA/CANADIAN BORDER TONIGHT. THIS SYSTEM WILL DRIVE A STRONG
COLD FRONT INTO NORTHERN WYOMING THIS EVENING AND INTO CENTRAL
WYOMING LATE TONIGHT. STRONG WEST TO SOUTHWEST WIND AND LOW
RELATIVE HUMIDITY WILL CONTINUE AHEAD OF THIS FRONT WITH A SHARP
WIND SHIFT FROM THE NORTH BEHIND THE FRONT. 

WYZ277-279-280-289-220400-
/O.EXP.KRIW.FW.W.0008.000000T0000Z-080822T0300Z/
LINCOLN AND UINTA COUNTIES / LOWER ELEVATIONS-
SWEETWATER COUNTY / ROCK SPRINGS BLM / FLAMING GORGE NRA-
NATRONA COUNTY / CASPER BLM-
GRANITE / GREEN / FERRIS / RATTLESNAKE MOUNTAINS-
859 PM MDT THU AUG 21 2008

...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING...

THE RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING. 

WINDS WILL CONTINUE TO DECREASE THIS EVENING...AND HUMIDITIES
WILL GRADUALLY RISE. THUS...THE RED FLAG WARNING WILL BE ALLOWED
TO EXPIRE AT 9 PM.

$$

WYZ283-220400-
/O.EXP.KRIW.FW.W.0008.000000T0000Z-080822T0300Z/
UPPER WIND RIVER BASIN / WIND RIVER BASIN-
859 PM MDT THU AUG 21 2008

...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING...

THE RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING. 

WINDS WILL CONTINUE TO DECREASE THIS EVENING...AND HUMIDITIES
WILL GRADUALLY RISE. THUS...THE RED FLAG WARNING WILL BE ALLOWED
TO EXPIRE AT 9 PM.

$$

WYZ281-220400-
/O.EXP.KRIW.FW.W.0008.000000T0000Z-080822T0300Z/
JOHNSON COUNTY / CASPER BLM-
859 PM MDT THU AUG 21 2008

...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING...

THE RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING. 

WINDS WILL CONTINUE TO DECREASE THIS EVENING...AND HUMIDITIES
WILL GRADUALLY RISE. THUS...THE RED FLAG WARNING WILL BE ALLOWED
TO EXPIRE AT 9 PM.

$$

WYZ140-220600-
/O.CON.KRIW.FW.W.0008.000000T0000Z-080822T0600Z/
YELLOWSTONE NATIONAL PARK-
859 PM MDT THU AUG 21 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT. 

STRONG WEST TO SOUTHWEST WINDS BETWEEN 20 AND 30 MPH WILL CONTINUE
THIS EVENING...WITH GUSTS NEAR 40 OVER THE PARK. THE STRONG WINDS
WILL RESULT IN THE EXTENSIVE SPOTTING AND POSSIBLE RAPID GROWTH OF
ANY EXISTING OR NEW FIRES. A COLD FRONT WILL MOVE ACROSS THE AREA
THROUGH MIDNIGHT RESULTING IN A SHARP WIND SHIFT FROM THE NORTH TO
NORTHWEST.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. CRITICALLY DRY
FUELS...COMBINED WITH STRONG WINDS...LOW RELATIVE HUMIDITY...AND
WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

$$

WYZ276-285>287-220600-
/O.CON.KRIW.FW.W.0008.000000T0000Z-080822T0600Z/
CODY FOOTHILLS-SOUTH BIGHORN MOUNTAINS-
ABSAROKA MOUNTAINS / NORTH SHOSHONE NF-OWL CREEK MOUNTAINS-
859 PM MDT THU AUG 21 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT. 

A COLD FRONT WILL CONTINUE TO MOVE ACROSS THE AREA THROUGH
MIDNIGHT RESULTING IN A SHARP WIND SHIFT TO THE NORTH AT 15 TO 25
MPH WITH THESE WINDS GRADUALLY DIMINISHING EARLY FRIDAY MORNING.
THE STRONG WINDS WILL RESULT IN THE EXTENSIVE SPOTTING AND
POSSIBLE RAPID GROWTH OF ANY EXISTING OR NEW FIRES.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. CRITICALLY DRY
FUELS...COMBINED WITH STRONG WINDS...LOW RELATIVE HUMIDITY...AND
WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

$$

WYZ288-220600-
/O.CON.KRIW.FW.W.0008.000000T0000Z-080822T0600Z/
EAST WIND RIVER MOUNTAINS / SOUTH SHOSHONE NF-
859 PM MDT THU AUG 21 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT. 

WEST TO SOUTHWEST WIND AT 20 TO 30 MPH WITH GUSTS OF 40 MPH ARE
EXPECTED TO CONTINUE THROUGH MIDNIGHT. THESE WINDS WILL CONTINUE
TO GRADUALLY DIMINISH TONIGHT. THESE STRONG WINDS WILL COMBINE
WITH LOW RELATIVE HUMIDITY OF 15 TO 25 PERCENT. THESE CONDITIONS
WILL RESULT CRITICAL FIRE WEATHER CONDITIONS WITH EXTENSIVE
SPOTTING AND RAPID GROWTH OF ANY EXISTING FIRES. A COLD FRONT WILL
MOVE ACROSS THE AREA AROUND MIDNIGHT RESULTING IN A WIND SHIFT
FROM THE NORTH TO NORTHWEST.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. CRITICALLY DRY
FUELS...COMBINED WITH STRONG WINDS...LOW RELATIVE HUMIDITY...AND
WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

$$

000 
WWUS85 KRIW 220557
RFWRIW

RED FLAG WARNING
NATIONAL WEATHER SERVICE RIVERTON WY
1157 PM MDT THU AUG 21 2008

WYZ140-220700-
/O.EXP.KRIW.FW.W.0008.000000T0000Z-080822T0600Z/
YELLOWSTONE NATIONAL PARK-
1157 PM MDT THU AUG 21 2008

...RED FLAG WARNING WILL EXPIRE AT MIDNIGHT MDT TONIGHT...

THE RED FLAG WARNING WILL EXPIRE AT MIDNIGHT MDT TONIGHT. 

A COLD FRONT HAS MOVED THROUGH THE PARK...WITH A DROP IN
TEMPERATURE AND A MARKED INCREASE IN HUMIDITY. THUS...THE RED FLAG
WARNING WILL BE ALLOWED TO EXPIRE AT MIDNIGHT.

$$

WYZ276-285>287-220700-
/O.EXP.KRIW.FW.W.0008.000000T0000Z-080822T0600Z/
CODY FOOTHILLS-SOUTH BIGHORN MOUNTAINS-
ABSAROKA MOUNTAINS / NORTH SHOSHONE NF-OWL CREEK MOUNTAINS-
1157 PM MDT THU AUG 21 2008

...RED FLAG WARNING WILL EXPIRE AT MIDNIGHT MDT TONIGHT...

THE RED FLAG WARNING WILL EXPIRE AT MIDNIGHT MDT TONIGHT. 

A COLD FRONT HAS MOVED THROUGH THE CODY FOOTHILLS AND MUCH OF THE
ABSAROKA MOUNTAINS...WITH A DROP IN TEMPERATURE AND A MARKED
INCREASE IN HUMIDITY. THUS...THE RED FLAG WARNING WILL BE ALLOWED
TO EXPIRE AT MIDNIGHT. HOWEVER...NORTH WINDS WILL STILL BE BREEZY
FOR THE NEXT FEW HOURS.

$$

WYZ288-220700-
/O.EXP.KRIW.FW.W.0008.000000T0000Z-080822T0600Z/
EAST WIND RIVER MOUNTAINS / SOUTH SHOSHONE NF-
1157 PM MDT THU AUG 21 2008

...RED FLAG WARNING WILL EXPIRE AT MIDNIGHT MDT TONIGHT...

THE RED FLAG WARNING WILL EXPIRE AT MIDNIGHT MDT TONIGHT. 

HUMIDITY HAS INCREASED...BELOW RED FLAG CRITERIA...AND THE RED
FLAG WARNING WILL BE ALLOWED TO EXPIRE AT MIDNIGHT.

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RIVERTON WY
420 AM MDT THU AUG 21 2008

.SHORT TERM...TODAY THROUGH SATURDAY NIGHT
UPPER LOW OVER VANCOUVER WITH ITS ASSOCIATED CONVECTION AND LTG STREAMING
EAST TO WESTERN MT WILL BE TRACKING EAST ALONG THE CANADIAN MONTANA
BORDER THROUGH TONIGHT. DIFFLUENT FLOW AND WEAK CONVECTION WITH
THE MOST FAVORABLE TOTAL TOTALS WILL BE PRODUCING SCT THUNDERSTORMS
ACROSS THE NORTHERN TIER ZONES THIS AFTERNOON AND EVENING. SOUTH
OF THIS AREA...WARM...DRY AND WINDY CONDITIONS WILL PREVAIL WITH
RIGHT FRONT QUAD OF THE 110 KNOT JET MAX FORCING THE STRONGER
WINDS TOWARD THE SURFACE TODAY. 700MB WINDS PROGGED TO BE WEST
SOUTHWESTERLY AT 35 KNOTS TODAY. THE FIRE WEATHER WATCH THAT WAS
IN AFFECT TODAY FOR MUCH OF SOUTHERN AND CENTRAL WYOMING DUE TO
INCREASED WINDS AND LOW RH IN THE LOW TO MID TEENS HAS BEEN
UPGRADED TO A RED FLAG WARNING IN EFFECT FROM 12 NOON TODAY
THROUGH 9 PM THIS EVE. SOUTHWEST WINDS IN THESE AREAS OF 15 TO 25 MPH
WITH GUSTS TO 35 MPH WILL BE COMMON. AN ASSOCIATED COLD FRONT WILL
PUSH SOUTH ACROSS THE CWA TONIGHT. STRONG WEST SOUTHWEST WINDS
WILL BLOW AHEAD OF THE APPROACHING FRONT. WINDS WILL SHIFT TO THE
NORTH ACROSS MUCH OF THE DIVIDE TONIGHT. 3 HOURLY SURFACE PRESSURE
RISES OF 7MB WILL CAUSE POST FRONTAL WINDS TO BLOW STRONGEST
ACROSS THE NORTHERN BIG HORN BASIN AND NORTHERN JOHNSON COUNTY AT
20 TO 30 MPH. THE NORTH WINDS SHOULD EXTEND AS FAR WEST AS THE
EASTERN PORTION OF THE GUN BARREL FIRE IN PARK COUNTY. WITH THE
THREAT OF INCREASED WINDS BEFORE AND AFTER THE FROPA...LIGHTNING
STARTS AND A WIND SHIFT...HAVE UPGRADED THE FIRE WEATHER WATCH TO
A WARNING ACROSS NORTHWEST WY AS WELL AS THE EAST SLOPE OF THE
WIND RIVER MTNS...THE OWL CREEK MTNS AND THE SOUTHERN BIG HORNS
FROM 12 NOON TODAY THROUGH MIDNIGHT TONIGHT. BY FRIDAY
MORNING...700MB TEMPS WILL DROP TO LESS THAN 1C ACROSS THE FAR
NORTH. WITH THE RIGHT REAR QUAD OF THE JET MAX AND STRONG PVA
PRODUCING LINGERING PRECIP IN NORTHERN WY TONIGHT...SOME LIGHT
SNOW SHOULD FALL IN THE NORTHWEST MTNS LATE TONIGHT AND EARLY
FRIDAY MORNING WITH LESS THAN ONE INCH EXPECTED IN SOME AREAS.
SKIES WILL CLEAR AFTERWARD LATER FRIDAY MORNING WITH SUBSIDENCE
MOVING IN UNDER CONFLUENT FLOW. SOME HIGH LEVEL MONSOON MOISTURE
WILL LIKELY STREAM NORTH ON SATURDAY AS A HIGH CENTER ESTABLISHES
ITSELF OVER THE 4 CORNERS REGION. SHOULD SEE HIGH BASED ISOLATED T
STORM ACTIVITY SNEAK NORTH ACROSS THE WESTERN MTNS LATE SATURDAY.

.LONG TERM...SUNDAY THROUGH THURSDAY
MAJOR MODEL DIFFERENCES IN REGARDS TO POTENTIAL TROUGH TOWARDS THE
END OF THE MEDIUM RANGE PERIOD. GFS DID A TOTAL FLIP-FLOP WITH A
STRONG CLOSED LOW FORMING OVER THE GREAT BASIN WEDNESDAY NIGHT AND
THURSDAY. THE ECMWF SHOWS A TROUGH SWINGING ACROSS MONTANA. THE 00Z
UKMET IS A COMPROMISE SHOWING A STRONGER TROUGH MOVING INTO THE
PACNW TUE AFTERNOON WHICH DEFINITELY SUPPORTS THE POTENTIAL FOR A
STRONGER TROUGH IN THE GREAT BASIN AROUND MIDWEEK. HARD TO SEE WHERE
THIS STORM SYSTEM ORIGINATES LOOKING AT THE H5 HEMISPHERIC CHARTS.
IT APPEARS TO COME OUT OF THE BERING SEA AREA BUT THE DEVELOPMENT
DOESNT BECOME TRACKABLE UNTIL ABOUT SUNDAY. CURRENT FORECAST IS
FOLLOWING THE ECMWF UNTIL WE SEE MORE CONSISTENCY WITH WHAT WOULD BE
A SIGNIFICANT CHANGE. MODELS STILL DEPICTING A MINIMAL AMOUNT OF
MOISTURE ROTATING AROUND MONSOONAL HIGH LEADING TO POTENTIAL FOR
ISOLATED HIGH BASED STORMS LATE SUNDAY ACROSS THE S AND CNTRL
PORTIONS. HOT...DRY SW FLOW DEVELOPS MONDAY WITH BOTH THE GFS AND
ECMWF SHOWING +19C AT H7 MONDAY AFTERNOON AROUND THE CENTRAL BASINS.
HAVE CONTINUED TREND OF BUMPING UP TEMPS WITH WIDESPREAD 90S EAST OF
THE DIVIDE AND 80S OUT WEST. ECMWF SHOWS A SERIES OF WEAK
DISTURBANCES IN THE FLOW JUST BRUSHING THE FAR NORTH EARLY NEXT
WEEK. PCPN CHANCES SEEM MINIMAL WITH MOST OF THE ENERGY IN MONTANA.
HOWEVER...ANY SWD SHIFT OF THIS TROUGH OR FURTHER DIGGING AS
INDICATED ON THE UKMET AND GFS WOULD CHANGE THE FORECAST
DRAMATICALLY. WILL KEEP SOME ISOLD POPS ACROSS THE FAR NORTH AT
TIMES BASED ON ECMWF TIMING. MONDAY SHOULD BE THE HOTTEST DAY WITH
SOME MODERATION TOWARD MIDWEEK WITH SEVERAL WEAK FRONTAL BOUNDARIES
MOVING DOWN FROM THE NORTH AT TIMES ALONG WITH COOLER MID LEVEL
TEMPS.

&&

.AVIATION...
A STRONG PACIFIC TROUGH WILL AFFECT WYOMING THROUGH THIS EVENING.
EXPECT WINDY CONDITIONS TO DEVELOP LATE THIS MORNING INTO THE
AFTERNOON OVER MUCH OF THE AREA. SOUTHWEST TO WEST WINDS BETWEEN 15
AND 30 KTS WILL BE COMMON OVER MUCH OF THE AREA.  SOME ISOLATED TO
WIDELY SCATTERED CONVECTION COULD OCCUR THIS AFTERNOON AND
EVENING...MAINLY NORTH/NORTHWEST OF A LINE FROM KJAC TO KCOD TO
KGEY.  DURING THE EVENING...A COLD FRONT WILL MOVE SOUTH ACROSS THE
AREA.  SOME LOW CLOUDS COULD OCCUR ACROSS THE CODY
FOOTHILLS/JOHNSON COUNTY AROUND MIDNIGHT OR LATER.

&&

.FIRE WEATHER...
A WARM AND DRY SOUTHWEST WIND OF 15 TO 25 MPH WITH GUSTS TO 35 MPH WILL
BLOW ACROSS MUCH OF SOUTHERN AND CENTRAL WYOMING TODAY ALONG WITH
A MINIMUM RELATIVE IN THE LOW TO MID TEENS. THIS HAS PROMPTED A
RED FLAG WARNING FOR THOSE AREAS TODAY FROM 12 NOON THROUGH 9 PM
THIS EVENING. STRONG WEST SOUTHWEST WINDS AHEAD OF AN APPROACHING
COLD FRONT...THE THREAT OF LIGHTNING STARTS AND AN EXPECTED WIND
SHIFT WITH A COLD FRONT HAS PROMPTED A RED FLAG WARNING TO BE IN
EFFECT TODAY FOR NORTHWEST WY AS WELL AS THE EAST SLOPE OF THE
WIND RIVER...THE OWL CREEK AND THE SOUTHERN BIG HORN MTNS TODAY
FROM 12 NOON THROUGH MIDNIGHT TONIGHT. SOME LIGHT SNOW MAY FALL
ACROSS THE NORTHWEST MTNS LATE TONIGHT. TEMPERATURES WILL BE AS
MUCH AS 15 DEGREES COOLER EAST OF THE DIVIDE BEHIND THE FRONT
FRIDAY. DURING THE WEEKEND SOME HIGH LEVEL MONSOON MOISTURE WILL
STREAM NORTH WHICH COULD PRODUCE SOME ISOLATED HIGH BASED
THUNDERSTORMS ACROSS THE WESTERN MTNS.

&&

.RIW WATCHES/WARNINGS/ADVISORIES...
RED FLAG WARNING FROM NOON TODAY TO 9 PM MDT THIS EVENING FOR
WYZ277-279>281-283-289.

RED FLAG WARNING FROM NOON TODAY TO MIDNIGHT MDT TONIGHT FOR
WYZ140-276-285>288.

&&

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

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RIVERTON WY
340 PM MDT WED AUG 20 2008

WYZ001>020-022>030-211100-
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-
340 PM MDT WED AUG 20 2008

...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH EARLY
THURSDAY EVENING FOR PORTIONS OF CENTRAL AND SOUTHERN WYOMING...
...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH
LATE THURSDAY NIGHT FOR THE NORTHERN MOUNTAINS...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING.

.DAY ONE...TODAY AND TONIGHT

ISOLATED THUNDERSTORMS ARE EXPECTED OVER THE NORTHWEST THIS
EVENING.  THE PRIMARY HAZARDS WILL BE LIGHTNING AND GUSTY OUTFLOW
WINDS TO 40 MPH.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

FIRE WEATHER WATCH IN EFFECT FOR MUCH OF WEST AND CENTRAL WYOMING
THURSDAY AFTERNOON THROUGH THURSDAY EVENING.  SOUTHWEST TO WEST WINDS
WILL INCREASE TO 15 TO 30 MPH WITH GUSTS TO 35 MPH THURSDAY
AFTERNOON. THIS WILL LIKELY COMBINE WITH WARM TEMPERATURES AND
HUMIDITIES BETWEEN 10 AND 15 PERCENT TO PRODUCE EXTREME FIRE WEATHER
CONDITIONS ACROSS SOUTH AND CENTRAL WYOMING.  A STRONG COLD FRONT
ALONG WITH ISOLATED TO WIDELY SCATTERED THUNDERSTORMS WILL RESULT IN
THE POTENTIAL FOR NEW FIRE STARTS ACROSS NORTHERN WYOMING ALONG
WITH EXTREME FIRE BEHAVIOR FROM ANY EXISTING FIRES.

SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

TEAM RIVERTON