Fire Weather Outlook Discussion
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FNUS21 KWNS 251608
FWDDY1

DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1108 AM CDT SAT OCT 25 2014

VALID 251700Z - 261200Z

NO CHANGES ARE NECESSARY TO THE PREVIOUS FORECAST.

..ROGERS.. 10/25/2014

.PREV DISCUSSION... /ISSUED 0328 AM CDT SAT OCT 25 2014/

...SYNOPSIS...
AN UPPER-LEVEL RIDGE WILL WEAKEN TODAY AS IT MOVES EWD ACROSS THE
CENTRAL CONUS WHILE AN UPSTREAM TROUGH MOVES INTO THE PACIFIC
NORTHWEST.  AT THE SURFACE...A LOW-PRESSURE SYSTEM WILL MOVE ONTO
THE WASHINGTON COAST AND DEVELOP NEWD TOWARD THE SRN CANADIAN
ROCKIES WITH A SOUTHWARD-EXTENDING COLD FRONT ADVANCING EWD ACROSS
THE CENTRAL GREAT BASIN.

...WCNTRL/NCNTRL NV...
DOWNWARD MIXING OF ENHANCED LOW/MIDLEVEL FLOW IN ADVANCE OF THE
APPROACHING TROUGH IN CONJUNCTION WITH A STRENGTHENING SURFACE
PRESSURE GRADIENT WILL LEAD TO WINDY/GUSTY CONDITIONS ACROSS THE
REGION THIS AFTERNOON.  SUSTAINED SWLY SURFACE WINDS OVER 20 MPH
/GUSTS OVER 40 MPH IN FAVORED LOCATIONS/ WILL BE LIKELY IN THE
AFTERNOON PRIOR TO FRONTAL PASSAGE.  ALTHOUGH RH VALUES ARE
GENERALLY EXPECTED TO STAY ABOVE THE CRITICAL THRESHOLD /I.E. 15
PERCENT/...PRE-FRONTAL AFTERNOON RH VALUES WILL LIKELY FALL AOB 20
PERCENT...LEADING TO ELEVATED AND PERHAPS LOCALLY CRITICAL FIRE
WEATHER CONDITIONS.

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




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