Click for Day 1 FireWX Areal Outline Product
ZCZC SPCFWDDY1 ALL
FNUS21 KWNS 250900
DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0400 AM CDT TUE SEP 25 2007
VALID 251200Z - 261200Z
...NO CRITICAL AREAS...
...SYNOPSIS...
A LARGE-SCALE UPPER-LEVEL TROUGH WILL BE MAINTAINED ACROSS THE
N-CNTRL CONUS...AS A SHORT WAVE LIFTS NEWD FROM THE NRN PLAINS
ACROSS THE GREAT LAKES WHILE AN UPSTREAM IMPULSE DIGS SEWD FROM
BRITISH COLUMBIA TOWARDS THE NRN ROCKIES. A STOUT UPPER-LEVEL RIDGE
ACROSS THE ERN CONUS WILL GRADUALLY BREAK DOWN AND SHIFT EWD OVER
THE WRN ATLANTIC. SIMILARLY...SURFACE HIGH PRESSURE ALONG THE
MID-ATLANTIC COAST WILL SLIDE E AND WEAKEN WITH THE APPROACH OF LOW
PRESSURE AND AN ASSOCIATED COLD FRONT CROSSING THE GREAT LAKES
THROUGH THE MID-MS RIVER VALLEY. AN IMMENSE AREA OF SURFACE HIGH
PRESSURE WILL BUILD FROM THE NRN GREAT BASIN/INTERMOUNTAIN WEST
ACROSS THE CNTRL ROCKIES/HIGH PLAINS. THIS WILL FURTHER INCREASE
DRYING WITH LIGHT WINDS OVER THE SWRN CONUS.
...PORTIONS OF INTERIOR SRN NEW ENGLAND...
AN ENHANCED FIRE WEATHER THREAT IS EXPECTED THIS AFTERNOON GIVEN
RECENT DRYNESS. THE COMBINATION OF INCREASING SWLY LOW-LEVEL FLOW
AND FULL INSOLATION...WILL LEAD TO WELL-ABOVE NORMAL TEMPERATURES IN
THE 80S. ALTHOUGH THE SWLY FLOW WILL EVENTUALLY RESULT IN
SUBSTANTIAL MOIST ADVECTION...THIS SHOULD HOLD OFF UNTIL THIS
EVENING/OVERNIGHT. WHERE OVERLAND TRAJECTORIES CAN BE UPHELD...RH
VALUES WILL LIKELY BECOME MARGINALLY LOW /AROUND 30 PERCENT/.
SUSTAINED SURFACE WINDS WILL BE STRONGER COMPARED TO MON...BUT
SHOULD LARGELY REMAIN MODERATE /FROM AROUND 12 TO 18 MPH/...GIVEN
RELATIVELY SHALLOW BOUNDARY LAYER DEPTH.
..GRAMS.. 09/25/2007
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
Click for Day 2 FireWX Areal Outline Product
ZCZC SPCFWDDY2 ALL
FNUS22 KWNS 250900
DAY 2 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0400 AM CDT TUE SEP 25 2007
VALID 261200Z - 271200Z
...NO CRITICAL AREAS...
...SYNOPSIS...
CRITICAL FIRE WEATHER POTENTIAL APPEARS TO BE LOW ACROSS MUCH OF THE
CONUS ON WED. A LARGE-SCALE UPPER-LEVEL TROUGH WILL BE SUSTAINED
ACROSS THE N-CNTRL CONUS AS A SERIES OF IMPULSES GYRATE IN AND
AROUND THE BASE OF THE TROUGH. MUCH OF THE WRN CONUS WILL CONTINUE
TO DRY OUT WITH GENERALLY LIGHT WINDS...AS EXPANSIVE SURFACE HIGH
PRESSURE STAYS ANCHORED FROM THE PACIFIC NW TO THE CNTRL PLAINS.
...SERN MT...
W/NWLY WINDS WILL INCREASE WED AFTERNOON BENEATH STRONG NWLY
MID-LEVEL FLOW AS LOW-LEVEL LAPSE RATES STEEPEN. SUSTAINED SURFACE
WINDS WILL LIKELY REACH 20 TO 25 MPH. ALTHOUGH TEMPERATURES SHOULD
ONLY WARM TO NEAR NORMAL READINGS /MIDDLE 60S TO LOWER 70S/...RH
VALUES MAY BECOME MARGINALLY LOW /AROUND 20 TO 25 PERCENT/ GIVEN THE
STRENGTH OF DOWNSLOPE-ENHANCED DRYING. NEVERTHELESS...FAIRLY
WIDESPREAD RAINFALL OVER THE PAST WEEK ALONG WITH RECENT COOL/MOIST
CONDITIONS SHOULD ASSUAGE ANY CRITICAL THREAT DESPITE LONGER-TERM
DRYNESS.
..GRAMS.. 09/25/2007
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...