Storm Prediction Center
Day 1 and Day 2 Fire Weather Outlooks
ZCZC SPCFWDDY1 ALL
FNUS21 KWNS 030904
DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0404 AM CDT SAT SEP 03 2005
VALID 031200Z - 041200Z
...CRITICAL FIRE WEATHER AREA FOR CENTRAL AND ERN ID / PORTIONS OF
SWRN MT AND NWRN WY...
...SYNOPSIS...
UPPER RIDGE WILL BE SITUATED OVER THE CENTRAL U.S. WITH LONG WAVE
TROUGHS OVER BRITISH COLUMBIA AND NEW ENGLAND. STRONG GRADIENT
BETWEEN THIS RIDGE AND THE TROUGH OVER BRITISH COLUMBIA WILL CAUSE
INCREASED WIND SPEEDS INTO ID AND MT WHERE IT WILL REMAIN WARM AND
DRY AHEAD OF A COLD FRONT. THIS FRONT WILL STRETCH FROM WRN MT INTO
NRN ID THIS AFTERNOON AND WILL BE NEARLY STATIONARY. FARTHER
S...WEAKER WINDS WILL OCCUR OVER THE GREAT BASIN BUT IT WILL BE WARM
AND DRY.
FARTHER E...HIGH PRESSURE AT THE SURFACE WILL CAUSE WARM AND DRY
CONDITIONS OVER MUCH OF THE MS VALLEY.
...CRITICAL FIRE WEATHER AREA 1 - CENTRAL AND ERN ID / PORTIONS OF
SWRN MT AND NWRN WY...
PRIMARY CONDITIONS: MODERATE SWLY WINDS / LOW RH / VERY DRY FUELS /
MDT TO HIGH HAINES
WARM AND WINDY CONDITIONS WILL DEVELOP TODAY AHEAD OF A WEAK COLD
FRONT...AS UPPER RIDGE SLOWLY BREAKS DOWN. SUSTAINED SWLY WINDS OF
15-20 MPH WILL OCCUR...WITH HIGHEST GUSTS OF 20-30 MPH LIKELY DURING
THE AFTERNOON HOURS. HIGH TEMPERATURES WILL AVERAGE 85-90 F...AND
WILL IN TURN CAUSE MIN RH VALUES OF 15-20 PERCENT. GIVEN WARM AND
DRY LOW LEVEL AIR MASS BENEATH RELATIVELY COOL AIR ALOFT...LAPSE
RATES WILL BE STEEP WITH TURBULENT FLOW AND MDT TO HIGH HAINES.
RH RECOVERY WILL BE GOOD OVERNIGHT WITH COOL TEMPERATURES IN THE 40S
BY SUNRISE.
...MOJAVE DESERT / GREAT BASIN...
SUSTAINED WIND SPEEDS AROUND 15 MPH ARE EXPECTED ACROSS THE AREA BY
AFTERNOON...WITH HIGHER GUSTS OF 20-25 MPH. MIN RH VALUES WILL RANGE
FROM 10-15 PERCENT OVER CA AND CENTRAL AND WRN NV TO 15-20 PERCENT
INTO WRN UT.
...ARKLATEX AREA...
WITH HIGH PRESSURE IN PLACE...RH LEVELS WILL DROP TO NEAR 30 PERCENT
BY LATE AFTERNOON. WINDS WILL AVERAGE NEAR 10 MPH OUT OF THE E AND
NE. GIVEN STRONG HEATING...LOW RH AND LONG TERM DROUGHT
CONDITIONS...THREAT FOR FIRES WILL BE ON THE INCREASE LOCALLY.
..JEWELL.. 09/03/2005
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
ZCZC SPCFWDDY2 ALL
FNUS22 KWNS 031027
DAY 2 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0527 AM CDT SAT SEP 03 2005
VALID 041200Z - 051200Z
...CRITICAL FIRE WEATHER AREA FOR SERN ID / SWRN MT / NWRN WY...
...SYNOPSIS...
UPPER RIDGE AXIS WILL SHIFT EWD INTO THE UPPER MS VALLEY
SUNDAY...ALLOWING BROAD AND WEAK UPPER TROUGH TO MOVE INTO THE GREAT
BASIN AND PACIFIC NW WHERE IT WILL BE LOCALLY WINDY AND DRY. COOL
AIR ALOFT WITH THIS TROUGH WILL ALLOW FOR SCATTERED THUNDERSTORMS
OVER ERN ID AND WRN MT...AND SOME WILL BE DRY. ISOLATED DRY THUNDER
WILL BE POSSIBLE SWD INTO THE WASATCH OF UT.
FARTHER E...A LOW PRESSURE TROUGH WILL MOVE EWD ACROSS THE NRN
PLAINS...WITH HIGH PRESSURE OVER THE ERN HALF OF THE NATION.
PRESSURE GRADIENT BETWEEN THE TWO WILL CAUSE STRONG SLY WINDS TO
DEVELOP THROUGH THE PLAINS STATES. DRY AIR ASSOCIATED WITH RH AND
NELY WINDS MAY INCREASE FIRE THREAT ACROSS PORTIONS OF THE SRN
PLAINS AND MS VALLEY...WEST OF WHERE HURRICANE KATRINA TRACKED.
...CRITICAL FIRE WEATHER AREA 1 - SERN ID / SWRN MT / NWRN WY...
PRIMARY CONDITIONS: DRY LIGHTNING / LOW RH / MODERATE HAINES
COOLING ALOFT WITH UPPER TROUGH WILL ALLOW FOR INCREASED INSTABILITY
TO DEVELOP RESULTING IN AFTERNOON THUNDERSTORMS. GENERAL SSWLY FLOW
WILL FAVOR SWRN SLOPES FOR DEVELOPMENT SUCH AS THE UPPER SNAKE RIVER
PLAIN OF ID AND THE YELLOWSTONE AREA. GIVEN DRY AIR MASS IN
PLACE...STORMS WILL CONTAIN LITTLE RAIN. IN ADDITION TO THE THREAT
OF DRY THUNDER...SWLY WINDS WILL AVERAGE NEAR 15 MPH WITH HIGHER
GUSTS AND MIN RH VALUES OF 15-20 PERCENT.
...NV / WRN UT...
SLY SURFACE WINDS WILL AVERAGE NEAR 15 MPH WITH HIGHER GUSTS OVER 20
MPH ESPECIALLY DURING THE AFTERNOON HOURS...WHILE MIN RH DROPS INTO
THE 10-15 PERCENT RANGE.
...NERN TX / SERN OK / AR / NRN LA...
HIGH PRESSURE WILL PERSIST AND KEEP CONDITIONS WARM AND DRY. MIN RH
WILL DROP TO NEAR 30 PERCENT WITH TEMPERATURES IN THE 90S. ENELY
WINDS AROUND 10 MPH ARE EXPECTED AND WITH DROUGHT CONDITIONS IN
PLACE...THIS COULD CAUSE NEAR CRITICAL CONDITIONS TO DEVELOP LATE
AFTERNOON IN AREAS THAT HAVE BEEN MISSED BY RECENT RAINS.
..JEWELL.. 09/03/2005
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
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