Click for Day 1 FireWX Areal Outline Product
ZCZC SPCFWDDY1 ALL
FNUS21 KWNS 290507
DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1207 AM CDT TUE AUG 29 2006
VALID 291200Z - 301200Z
...EXTREMELY CRITICAL FIRE WEATHER AREA FOR A PORTION OF ERN
ORE/WA...NRN/WRN ID AND WRN MT FOR LOW RH READINGS/STRONG
WINDS/FRONTAL PASSAGE AND ISOLATED DRY TSTMS...
...CRITICAL FIRE WEATHER AREA FOR DRY THUNDERSTORMS OVER WRN/CENTRAL
MT...ERN ID AND NWRN WY...
...CRITICAL FIRE WEATHER AREA FOR STRONG WINDS/LOW RH READINGS OVER
A LARGE AREA OF THE GREAT BASIN/NRN ROCKIES AND NRN HIGH PLAINS...
...SYNOPSIS...
A STRONG AND PROGRESSIVE UPPER TROUGH WILL MOVE THROUGH THE PAC NW
AND INTO NRN ROCKIES TODAY. AHEAD OF THIS UPPER TROUGH AND AN
ASSOCIATED COLD FRONT...MODERATE TO STRONG SFC WINDS WILL DEVELOP
OVER MUCH OF THE GREAT BASIN NEWD INTO THE NRN ROCKIES AND NRN HIGH
PLAINS. THE COMBINATION OF LOW RH READINGS WITH THESE WINDS /ALONG
WITH ISOLATED TO SCT DRY TSTMS/ WILL SUPPORT A LARGE AREA OF
CRITICAL FIRE WEATHER CONDITIONS OVER THIS REGION. FURTHER
SOUTH...WELL ABOVE NORMAL TEMPERATURES AND LOW RH READINGS WILL
REMAIN IN PLACE OVER A LARGE PORTION OF THE SRN GREAT BASIN AND SWRN
DESERTS/INTERIOR CA. GUSTY SWLY WINDS WILL ALSO BE FOUND OVER MUCH
OF THIS AREA...BUT SUSTAINED WIND SPEEDS ARE EXPECTED TO REMAIN
BELOW CRITICAL LEVELS. ELSEWHERE ACROSS THE NATION AN UPPER TROUGH
WILL PROGRESS FROM THE PLAINS INTO THE OHIO VALLEY. IN THE WAKE OF
THE UPPER TROUGH A BROAD AREA OF SFC HIGH PRESSURE WILL DEVELOP SWD
THROUGH THE PLAINS SUPPORTING GENERALLY LIGHT WINDS AND BELOW NORMAL
TEMPERATURES OVER CENTRAL/SRN PLAINS AND UPPER MIDWEST.
...EXTREMELY CRITICAL FIRE WEATHER AREA - FAR ERN WA/ERN
ORE...NRN/WRN ID AND WRN MT...
PRIMARY CONDITIONS: SUSTAINED SWLY WINDS FROM 25-30 MPH WITH GUSTS
OVER 35 MPH...COLD FRONTAL PASSAGE...MIN RH READINGS FROM 5-15
PERCENT...ISOLATED DRY TSTMS
A STRONG UPPER TROUGH LOCATED OFF THE PAC NW COAST EARLY THIS
MORNING WILL MOVE EWD INTO THE ROCKIES BY LATE TONIGHT. AHEAD OF
THIS UPPER TROUGH...A SFC THERMAL TROUGH WILL SHIFT EWD INTO THE NRN
ROCKIES DURING THE AFTERNOON. TO THE WEST OF THE THERMAL TROUGH A
COLD FRONT WILL PUSH SEWD ACROSS ERN ORE/WA...NRN/WRN ID AND NWRN MT
DURING THE AFTERNOON/EVENING HOURS EVENTUALLY OVERTAKING THE SFC
TROUGH LATER TONIGHT. AHEAD OF THE COLD FRONT...SUSTAINED SWLY WINDS
FROM 25-30 MPH WITH GUSTS OVER 35 MPH WILL BE COMMONPLACE...AS THE
STRONGEST MID LEVEL WIND MAXIMUM MOVES ACROSS THE AREA AND COMBINES
WITH STEEP LOW-MID LEVEL LAPSE RATES AND A MODERATE PRESSURE
GRADIENT. WITH THE FRONTAL PASSAGE...WINDS WILL BECOME NWLY AND
REMAIN MODERATE FOR SEVERAL HRS HAMPERING ONGOING FIREFIGHTING
EFFORTS. VERY WARM TEMPERATURES ASSOCIATED WITH THE THERMAL TROUGH
ALONG WITH LOW DWPTS WILL LEAD TO MIN RH READINGS FROM 5-15
PERCENT...LOWEST OVER SERN ORE AND SWRN ID. ISOLATED DRY TSTMS MAY
BE POSSIBLE AHEAD OF UPPER TROUGH/COLD FRONT AS WELL...AS STRONG
LIFT AND MID LEVEL MOISTURE INTERACT. THE BETTER CONVECTIVE COVERAGE
HOWEVER IS EXPECTED EAST OF THE THERMAL TROUGH OVER WRN/CENTRAL MT
AND ERN ID.
...CRITICAL FIRE WEATHER AREA - FOR DRY TSTMS OVER WRN/CENTRAL
MT...ERN ID AND NWRN WY...
PRIMARY CONDITIONS: SCT DRY TSTMS
ALONG THE SFC TROUGH AND AHEAD OF A COLD FRONT...STRONG DYNAMIC LIFT
COMBINED WITH MID LEVEL MOISTURE AND STEEPENING MID LEVEL LAPSE
RATES WILL SUPPORT SCT TSTM DEVELOPMENT OVER WRN MT AND ERN ID
DURING THE AFTERNOON HRS. STRONG MID LEVEL WIND FIELDS COMBINED WITH
VERY DRY LOW LEVELS WILL SUPPORT FAIRLY FAST TSTM MOTIONS WITH
LITTLE TO NO RAINFALL REACHING THE SFC. GIVEN THE FAIRLY RAPID
MOTIONS /25-30 KTS/...CONVECTION SHOULD MOVE INTO CENTRAL MT AND
NWRN WY DURING THE LATE AFTERNOON/EVENING HRS. ANTECEDENT CONDITIONS
OVER THE AREA ARE VERY FAVORABLE FOR LIGHTNING STARTS...THUS A
CRITICAL DRY TSTM THREAT WILL EXIST.
...CRITICAL FIRE WEATHER AREA - FOR A LARGE PORTION OF THE WRN CONUS
INCLUDING NRN/CENTRAL NV...MUCH OF WRN/NRN UT...WRN AND CENTRAL
WY...ERN MT AND FAR WRN ND...
PRIMARY CONDITIONS: SUSTAINED S-SWLY WINDS FROM 20-30 MPH WITH GUSTS
OVER 35 MPH...MIN RH READINGS FROM 5-15 PERCENT
SURROUNDING BOTH THE EXTREMELY AND DRY TSTMS CRITICAL AREAS...A
LARGE CRITICAL FIRE WEATHER AREA WILL EXIST FROM THE CENTRAL GREAT
BASIN NEWD THROUGH THE NRN ROCKIES WHERE MODERATE S-SWLY WINDS
/20-30 MPH DEVELOP IN A BROAD ZONE OF INCREASING MID LEVEL WINDS.
FURTHER EAST...A STRONG PRESSURE GRADIENT WILL SUPPORT MODERATE
SSELY WINDS OVER ERN MT AND FAR WRN ND. OVER THE ENTIRE REGION VERY
WARM TEMPERATURES /90S/ AND LOW DWPTS /TEENS INTO THE LOWER 30S/
WILL SUPPORT LOW RH READINGS FROM 5 PERCENT IN THE GREAT BASIN TO 15
PERCENT OVER THE NRN HIGH PLAINS AND ERN WA/ORE.
...SRN GREAT BASIN/LOWER CO RIVER VALLEY AND THE MOJAVE DESERT...
SOUTH OF THE STRONGER MID LEVEL FLOW...INCREASING PRESSURE GRADIENT
TO THE WEST OF A THERMAL TROUGH OVER THE ERN GREAT BASIN WILL
SUPPORT AFTERNOON SUSTAINED SWLY WINDS FROM 15-20 MPH WITH GUSTS UP
TO 25 MPH. ABOVE NORMAL TEMPERATURES IN THE 90S IN HIGHER ELEVATIONS
TO 110S IN THE LOWER CO RIVER VALLEY ALONG WITH LOW DWPTS IN THE
TEENS TO 30S WILL SUPPORT LOW RH READINGS FROM 5-10 PERCENT.
..CROSBIE.. 08/29/2006
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
Click for Day 2 FireWX Areal Outline Product
ZCZC SPCFWDDY2 ALL
FNUS22 KWNS 290509
DAY 2 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1209 AM CDT TUE AUG 29 2006
VALID 301200Z - 311200Z
...EXTREMELY CRITICAL FIRE WEATHER AREA FOR A PORTION OF CENTRAL/ERN
MT...ERN ID AND WRN/CENTRAL WY...
...CRITICAL FIRE WEATHER AREA FOR THE SRN GREAT BASIN NEWD INTO THE
NRN ROCKIES/NRN HIGH PLAINS...
...SYNOPSIS...
A STRONG UPPER TROUGH WILL SLOWLY MOVE EWD OVER THE NRN ROCKIES/NRN
GREAT BASIN THROUGH THE PERIOD. ASSOCIATED WITH THIS SYSTEM A COLD
FRONT WILL MOVE SEWD AND EXTEND FROM A SFC LOW PRESSURE CENTERED
OVER SERN MT SWWD INTO NRN NV BY EARLY EVENING. AHEAD OF THE
FRONT...AND WEST OF A LEE TROUGH...STRONG SWLY WINDS WILL DEVELOP
OVER THE SNAKE RIVER VALLEY AND MUCH OF WRN/CENTRAL WY INTO SCENTRAL
MT. LOW RH READINGS WILL COMBINE WITH THESE WINDS TO PRODUCE
EXTREMELY CRITICAL FIRE WEATHER CONDITIONS. A CRITICAL FIRE WEATHER
THREAT WILL EXIST OVER MUCH OF THE REMAINDER OF THE GREAT BASIN NEWD
INTO THE NRN HIGH PLAINS WHERE SLIGHTLY LESS WIND SPEEDS WILL EXIST.
ELSEWHERE...A BROAD AREA OF SFC HIGH PRESSURE WILL DEVELOP EWD
ACROSS THE GREAT LAKES/MS VALLEY IN THE WAKE OF AN WEAKENING UPPER
TROUGH. GENERALLY LIGHT WINDS AND NEAR/BELOW NORMAL TEMPERATURES
WILL BE A RESULT ACROSS MOST OF THIS REGION.
...EXTREMELY CRITICAL FIRE WEATHER AREA - MOST OF CENTRAL/ERN
MT...CENTRAL/WRN WY...ERN ID...
PRIMARY CONDITIONS: SUSTAINED SWLY-WLY WINDS FROM 20-30 MPH WITH
GUSTS OVER 35 MPH...FRONTAL PASSAGE...MIN RH READINGS FROM 10-15
PERCENT
THE UPPER TROUGH ON DAY ONE WILL DEEPEN OVER THE NRN ROCKIES ON DAY
TWO. AS A RESULT...THE STRONGEST MID LEVEL WINDS WILL BEGIN TO
OVERSPREAD AREAS EAST OF A COLD FRONT...WHICH WILL EXTEND FROM SERN
MT SWWD TO NEAR THE NV/ID BORDER BY THE AFTERNOON HRS. STEEP LOW-MID
LEVEL LAPSE RATES AND MINIMAL LOW LEVEL COOLING WILL SUPPORT
CRITICAL FIRE WEATHER CONDITIONS FOR SEVERAL HRS/50-100 MILES BEHIND
THE COLD FRONT OVER CENTRAL/ERN MT AND PORTIONS OF ERN ID. THE
COMBINATION OF SUSTAINED WIND SPEEDS FROM 20-30 MPH AND GUSTS UP TO
40 MPH /STRONGEST OVER THE SNAKE RIVER VALLEY/ ALONG WITH MIN RH
READINGS FROM 10-15 PERCENT AND A FRONTAL PASSAGE OVER PORTIONS OF
THE AREA SUPPORTS AN EXTREMELY CRITICAL FIRE WEATHER THREAT. IN
ADDITION TO THE WIND/RH RELATED THREAT...ISOLATED DRY TSTMS WILL
ALSO BE POSSIBLE OVER MUCH OF WY/AND SRN MT SOUTH OF THE COLD FRONT.
...CRITICAL FIRE WEATHER AREA - SURROUNDING THE EXTREMELY CRITICAL
FIRE WEATHER AREA...FROM SERN CA NEWD INTO THE GREAT BASIN AND NRN
ROCKIES...
PRIMARY CONDITIONS: SUSTAINED SWLY WINDS FROM 20-25 MPH WITH GUSTS
OVER 30 MPH...MIN RH READINGS FROM 5-15 PERCENT
AS THE UPPER TROUGH DEEPENS OVER THE NRN ROCKIES...STRONG ONSHORE
FLOW COMBINED WITH INCREASING MID LEVEL WINDS WILL SUPPORT SWD
DEVELOPMENT OF CRITICAL FIRE WEATHER CONDITIONS INTO THE SRN GREAT
BASIN AND PORTIONS OF SERN CA. OVER THE REMAINDER OF THE CRITICAL
FIRE WEATHER AREA...LOW RH READINGS WILL AGAIN BE COMMON ALONG WITH
MODERATE SWLY WINDS FROM 20-25 MPH. THE WRN EDGE OF THE CRITICAL
AREA OVER CENTRAL ID AND WRN MT WILL BE MOSTLY BEHIND THE COLD FRONT
IN THE AFTERNOON. HOWEVER LIMITED COOLING WILL LIKELY SUPPORT MIN RH
READINGS AROUND 15 PERCENT IN THESE AREAS ALONG WITH SUSTAINED WNWLY
WINDS FROM 20-25 MPH. THE ERN EDGE OF THE CRITICAL AREA WILL EXTEND
ALONG THE LEE TROUGH WHERE A MODERATE PRESSURE GRADIENT WILL EXIST
ALONG WITH SLOWLY INCREASING MID LEVEL WIND FIELDS/STEEP LAPSE
RATES.
..CROSBIE.. 08/29/2006
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...