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DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0349 AM CDT TUE APR 05 2005
VALID 051200Z - 061200Z
...CRITICAL FIRE WEATHER AREA FOR A PART OF THE SRN PLAINS...
...SYNOPSIS...
A STRONG SHORTWAVE TROUGH WILL EJECT EWD OUT OF THE SRN ROCKIES AND
INTO THE PLAINS THROUGH THE PERIOD. STEEP LAPSE RATES AND STRONG MID
LEVEL WIND FIELDS/SFC PRESSURE GRADIENT WILL ACCOMPANY THIS SYSTEM.
ALONG WITH LOW RH READINGS...A CRITICAL FIRE WEATHER THREAT WILL BE
PRESENT OVER PORTIONS OF THE SRN PLAINS. FARTHER EAST...A BROAD AREA
OF SFC HIGH PRESSURE CENTERED OFF THE SE ATLANTIC COAST WILL AID IN
LOW RH READINGS FROM 25-35 PERCENT ACROSS MUCH OF THE COUNTRY EAST
OF THE APPALACHIANS. HOWEVER...IN THIS REGION EXPECT SUSTAINED WINDS
TO BE LESS THAN 15 MPH PRECLUDING ANY SIGNIFICANT FIRE WEATHER
CONCERNS.
...CRITICAL FIRE WEATHER AREA 1 - MUCH OF WRN/CENTRAL TX...SERN
NM...AND SWRN/SCENTRAL OK...
PRIMARY CONDITIONS: SUSTAINED WSWLY WINDS FROM 20-30 MPH WITH GUSTS
OVER 40 MPH...MIN RH READINGS FROM 10-25 PERCENT
AT MID/UPPER LEVELS A STRONG SHORTWAVE TROUGH WILL PROGRESS THROUGH
THE REGION TODAY WHILE AT THE SFC A LOW PRESSURE CENTER WILL MOVE
FROM SWRN KS INTO NERN OK. THE COMBINATION OF A STRONG PRESSURE
GRADIENT WITH THIS SYSTEM...ALONG WITH NEARLY DRY-ADIABATIC LAPSE
RATES FROM THE SFC TO 700 MB WILL SUPPORT STRONG WINDS ACROSS THE
REGION. THE STRONGEST WINDS ARE FORECAST TO OCCUR ALONG THE MID
LEVEL COLD FRONT/WIND SPEED MAX THAT WILL EXTEND FROM SWRN INTO
CENTRAL TX DURING THE AFTERNOON. IN THIS REGION...SUSTAINED WIND
SPEEDS FROM 25-30 MPH WITH GUSTS OVER 40 MPH ARE EXPECTED.
ELSEWHERE...DEEP MIXING BEHIND THE DRYLINE WHICH WILL EXTEND FROM
THE SFC LOW ALONG I-35 FROM CENTRAL OK INTO CENTRAL TX BY THE MID
AFTERNOON WILL SUPPORT SUSTAINED WIND SPEEDS FROM 20-25 MPH WITH
GUSTS OVER 35 MPH. IN ADDITION TO THE WINDS...LOW DEWPTS IN THE
10S/20S COMBINED WITH TEMPERATURES IN THE 70S TO MID 80S WILL LEAD
TO MIN RH READINGS FROM 10-25 PERCENT. LOWER TEMPERATURES IN THE 60S
AND SLIGHTLY HIGHER DEWPTS WILL OCCUR OVER THE PANHANDLE AND NWRN OK
BEHIND A COLD FRONT. THUS DESPITE STRONG WNWLY WINDS FROM 20-30
MPH...A CRITICAL FIRE WEATHER THREAT IS NOT ANTICIPATED IN THIS
AREA.
..CROSBIE.. 04/05/2005
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...