Storm Prediction Center
Day 1 and Day 2 Fire Weather Outlooks
ZCZC SPCFWDDY1 ALL
FNUS21 KWNS 130741
DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0241 AM CDT WED APR 13 2005
VALID 131200Z - 141200Z
...CRITICAL FIRE WEATHER AREA FOR GREAT BASIN...
...SYNOPSIS...
UPPER TROUGH AND ASSOCIATED SURFACE COLD FRONT MOVES THROUGH THE
PACIFIC NORTHWEST TODAY WITH SHOWERS AND POSSIBLE THUNDERSTORMS FROM
NRN CA TO WRN MT. AHEAD OF THE SURFACE COLD FRONT DRY...WINDY AND
WARM CONDITIONS ARE EXPECTED FROM THE GREAT BASIN TO THE PLAINS OF
MT THIS AFTERNOON.
DRY NORTHERLY FLOW AT THE SURFACE MAINTAINS A COOL AND DRY AIRMASS
FROM SRN NEW ENGLAND TO THE UPPER MISSISSIPPI VALLEY. BREEZY NORTH
TO NORTHEAST WINDS OF 10 TO 25 MPH WILL OCCUR FROM CNTRL PA TO SRN
WI...WITH MINIMUM RH VALUES RANGING FROM 20 TO 30 PERCENT AND
MAXIMUM TEMPERATURES IN THE UPPER 50S TO LOWER 60S.
AN UPPER LOW OVER TN THIS MORNING MOVES SLOWLY SOUTHEASTWARD DURING
THE PERIOD...BRINGING SHOWERS AND THUNDERSTORMS TO PORTIONS OF THE
SOUTHEAST.
...CRITICAL FIRE WEATHER AREA 1 - GREAT BASIN...
PRIMARY CONDITIONS: DRY...WINDY...AND WARM TODAY
...GREAT BASIN...
PREFRONTAL SOUTHWEST WINDS OF 20 TO 40 MPH...TEMPERATURES IN THE
UPPER 60S TO MID 70S...AND MINIMUM RH VALUES AROUND 10 PERCENT ARE
EXPECTED THIS AFTERNOON PRIOR TO COLD FRONTAL PASSAGE EARLY THIS
EVENING. ALTHOUGH THE OBSERVED NFDRS CLASS RATINGS /HIGH/ AND 10 HR
FUEL MOISTURE VALUES /3 TO 4%/ ARE BORDERLINE...WEATHER CONDITIONS
WARRANT THE ISSUANCE OF A CRITICAL AREA FOR THIS AFTERNOON.
...SERN MT...
AS SURFACE LOW PRESSURE DEVELOPS OVER CNTRL MT TODAY...SOUTHEAST
WINDS INCREASE TO 15 TO 30 MPH AND MINIMUM RH VALUES FALL TO ABOUT
20 PERCENT. THE UNSEASONABLY WARM TEMPERATURES /HIGHS IN THE
MIDDLE 70S/ AND DRY AIRMASS RESULTS IN NEAR-CRITICAL FIRE WEATHER
CONDITIONS THIS AFTERNOON.
..BRIGHT.. 04/13/2005
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
ZCZC SPCFWDDY2 ALL
FNUS22 KWNS 130850
DAY 2 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0350 AM CDT WED APR 13 2005
VALID 141200Z - 151200Z
...NO CRITICAL AREAS...
...SYNOPSIS...
UPPER TROUGH ADVANCES EASTWARD FROM THE NRN ROCKIES TO THE NRN
PLAINS DURING THE PERIOD...WHILE A STRONG UPPER RIDGE OVER THE
CENTRAL U.S. SHIFTS SLOWLY EASTWARD. EAST COAST UPPER TROUGH MOVES
OVER THE WESTERN ATLANTIC...WITH SURFACE HIGH PRESSURE AND DRY
NORTHERLY FLOW EXPECTED OVER MOST OF THE EAST. BREEZY NORTH WINDS
ARE EXPECTED OVER SRN NEW ENGLAND...WHERE TEMPERATURES IN THE 50S
AND LOWER 60S AND MINIMUM RH VALUES AROUND 25 PERCENT ARE EXPECTED.
...NRN PLAINS...
A WINDY AND RELATIVELY DRY PATTERN DEVELOPS OVER THE NORTHERN PLAINS
THURSDAY AS A COLD FRONT MOVES FROM ERN MT THROUGH THE DAKOTAS.
AHEAD OF THE FRONT SOUTH TO SOUTHEAST WINDS OF 20 TO 40 MPH ARE
EXPECTED WITH WARM AFTERNOON TEMPERATURES IN THE LOWER TO MIDDLE 70S
AND MINIMUM RH AROUND 30 PERCENT. FOLLOWING THE FRONTAL PASSAGE
WEST WINDS OF 20 TO 40 MPH DEVELOP OVER ERN MT AND THE WRN DAKOTAS.
THE COOLER POSTFRONTAL AIRMASS KEEPS TEMPERATURES IN THE UPPER 50S
TO LOWER 60S...BUT MINIMUM RH VALUES FALL BETWEEN 15 AND 20 PERCENT.
..BRIGHT.. 04/13/2005
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
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