Fire Weather Outlook Discussion
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FNUS21 KWNS 261527
FWDDY1

DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1026 AM CDT SUN APR 26 2015

VALID 261700Z - 271200Z

PREVIOUS FORECAST IS ON TRACK.  NO CHANGES NEEDED.

..LEITMAN.. 04/26/2015

.PREV DISCUSSION... /ISSUED 0355 AM CDT SUN APR 26 2015/

...SYNOPSIS...
A HIGHLY AMPLIFIED UPPER PATTERN WILL BE IN PLACE TODAY...WITH A
DEEP UPPER TROUGH CURRENTLY OVER THE INTERMOUNTAIN WEST EXPECTED TO
CLOSE OFF INTO AN UPPER LOW OVER THE SRN HIGH PLAINS...WHILE AN
UPPER RIDGE BUILDS INTO THE PACIFIC COAST. AT THE SURFACE...HIGH
PRESSURE WILL BEGIN TO BUILD INTO THE GREAT BASIN...RESULTING IN A
PERIOD OF OFFSHORE FLOW ACROSS SRN CA BEGINNING TONIGHT.
MEANWHILE...STRONG LOW-LEVEL WLY FLOW WILL DEVELOP ACROSS SERN NM/W
TX AHEAD OF THE UPPER TROUGH AND SOUTH OF A COLD FRONT THAT WILL BE
DRAPED ACROSS THE SRN HIGH PLAINS.

...PORTIONS OF WRN TX AND ERN NM...
ELEVATED TO LOCALLY CRITICAL METEOROLOGICAL CONDITIONS WILL DEVELOP
ACROSS PARTS OF ERN NM/W TX THIS AFTERNOON...WITH SUSTAINED WLY
WINDS OF 15-30 MPH EXPECTED WHILE RH DROPS INTO THE 10-20 PERCENT
RANGE. THERE IS LIKELY TO BE SOME DISPLACEMENT BETWEEN THE AREA OF
STRONGEST WINDS ACROSS ERN NM INTO THE TX TRANS-PECOS REGION...AND
THE AREA OF WARMEST TEMPS/LOWEST RH IMMEDIATELY BEHIND THE DRYLINE
ACROSS W TX. GIVEN THIS DISPLACEMENT AND SOME ANTECEDENT
RAINFALL/GREENUP ACROSS PARTS OF THE AREA...NO CRITICAL DELINEATION
WILL BE MADE AT THIS TIME.

...LOWER CO RIVER VALLEY...
LOCALLY ELEVATED CONDITIONS ARE POSSIBLE ACROSS THE LOWER CO RIVER
VALLEY...AS NWLY SFC WINDS OF 15-20 WILL DEVELOP THIS AFTERNOON IN
CONJUNCTION WITH MINIMUM RH VALUES OF 10-20 PERCENT. CRITICAL
WIND/RH MAY BE REALIZED IN LOCALIZED AREAS...BUT MARGINAL WIND
SPEEDS AND SOME RECENT RAINFALL/FUEL MOISTENING SHOULD LIMIT THE
OVERALL THREAT.

...SRN CA COASTAL RANGES AND ADJACENT FOOTHILLS...
OFFSHORE FLOW WILL DEVELOP LATE TONIGHT INTO MONDAY MORNING ACROSS
SRN CA...AS HIGH PRESSURE BUILDS INTO THE GREAT BASIN. COASTAL
RANGES AND ADJACENT FOOTHILLS WILL LIKELY SEE THE STRONGEST
WINDS...BUT MARGINAL RH AND FUEL CONDITIONS SHOULD LIMIT THE OVERALL
THREAT THROUGH THE END OF THE DAY1 PERIOD.

...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...



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