Click for Day 1 FireWX Areal Outline Product
ZCZC SPCFWDDY1 ALL
FNUS21 KWNS 200744
DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0144 AM CST THU DEC 20 2007
VALID 201200Z - 211200Z
...NO CRITICAL AREAS...
...SYNOPSIS...
A MID/UPPER-LEVEL SHORT WAVE TROUGH OVER THE SRN PLAINS WILL TRACK
ALONG THE GULF COAST STATES INTO THE SOUTHEAST BY EARLY FRI.
ASSOCIATED WEAK SURFACE LOW WILL FOLLOW A SIMILAR TRACK. A DRY LINE
WILL PUSH THROUGH CNTRL/ERN TX AND REACH THE WRN GULF COAST BEFORE
BECOMING ILL-DEFINED THIS EVENING. IN THE WEST...A POTENT
MID/UPPER-LEVEL TROUGH WILL AMPLIFY FROM THE PACIFIC NW/NRN CA COAST
INTO THE DESERT SW THROUGH THE NRN ROCKIES BY 12Z FRI.
...PORTIONS OF S-CNTRL TX...
AS A DRY LINE PASSES THROUGH THE AREA THIS MORNING...DEW POINTS WILL
RAPIDLY DROP INTO THE 20S/30S FROM CURRENT READINGS IN THE 50S/60S.
WITH ABUNDANT INSOLATION IN THE WAKE OF A SHORT WAVE TROUGH
PASSAGE...TEMPERATURES WILL WARM INTO THE 70S TO LOWER 80S FROM AUS
TO THE LOWER RIO GRANDE VALLEY. THIS WILL RESULT IN CRITICALLY LOW
RH VALUES FROM 12 TO 20 PERCENT. HOWEVER...SUSTAINED SURFACE WINDS
SHOULD REMAIN MODEST /AROUND 10 TO 15 MPH/.
..GRAMS.. 12/20/2007
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
Click for Day 2 FireWX Areal Outline Product
ZCZC SPCFWDDY2 ALL
FNUS22 KWNS 200934
DAY 2 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0334 AM CST THU DEC 20 2007
VALID 211200Z - 221200Z
...NO CRITICAL AREAS...
...SYNOPSIS...
A HIGH-AMPLITUDE LARGE-SCALE UPPER-LEVEL TROUGH WILL SHIFT EWD
ACROSS THE WRN CONUS ONTO THE GREAT PLAINS BY EARLY SAT. SURFACE
CYCLOGENESIS SHOULD OCCUR IN THE SRN HIGH PLAINS...MOVING E/SEWD FRI
EVENING/OVERNIGHT AS A COLD FRONT PUSHES S/EWD THROUGH THE PLAINS.
UPSTREAM...STRONG HIGH PRESSURE WILL BECOME ANCHORED ACROSS THE
CNTRL/ERN GREAT BASIN.
...PORTIONS OF FAR W/SW TX...
UNCERTAINTY REMAINS ON WHETHER STRONG WINDS AND LOW RH WILL COINCIDE
IN THIS AREA ON FRI AFTERNOON. ALTHOUGH MODEL GUIDANCE FORECASTS
AGREE WITH INCREASED LOW/MID-LEVEL WINDS IN ADVANCE OF A FOUR
CORNERS/SWRN CONUS TROUGH...THEY CONTINUE TO DIFFER ON TIMING OF THE
STRONGEST WINDS INTO WRN TX. IN ADDITION...PROBABLE MID/UPPER-LEVEL
CLOUDINESS SHOULD LIMIT FULL HEATING POTENTIAL RESULTING IN ONLY
MARGINALLY LOW RH /AROUND 15 TO 20 PERCENT/ DESPITE A DRY ANTECEDENT
AIR MASS.
...SRN CA...
COOL OFFSHORE FLOW WILL COMMENCE EARLY FRI IN THE WAKE OF THE
DEPARTING UPPER-LEVEL TROUGH AND AS SURFACE HIGH PRESSURE BUILDS
INTO THE GREAT BASIN. RECENT PRECIPITATION AND AN INITIALLY MOIST
AIR MASS SHOULD DETER THE OVERALL THREAT DESPITE GUSTY N/ELY WINDS.
AS SUCH..ONLY MARGINALLY LOW MIN RH /FROM 15 TO 20 PERCENT/ IS
EXPECTED AS TEMPERATURES REACH INTO THE 50S.
..GRAMS.. 12/20/2007
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...