Fire Weather Outlook Discussion
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FNUS21 KWNS 251625
FWDDY1

DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1125 AM CDT FRI JUL 25 2014

VALID 251700Z - 261200Z

...CRITICAL FIRE WEATHER AREA FOR CNTRL/SRN WY...

ONLY MINOR ADJUSTMENTS WERE MADE...PREVIOUS FORECAST REMAINS ON
TRACK. PLEASE SEE DISCUSSION BELOW FOR MORE DETAILS.

..LEITMAN.. 07/25/2014

.PREV DISCUSSION... /ISSUED 0345 AM CDT FRI JUL 25 2014/

...SYNOPSIS...
STRONG WLY FLOW ALOFT WILL DEVELOP TODAY OVER THE NRN ROCKIES/PLAINS
BETWEEN AN UPPER-LEVEL LOW MOVING EWD ACROSS SRN SASKATCHEWAN AND A
HIGH CENTERED OVER THE SRN ROCKIES.  AT THE SURFACE...A COLD FRONT
ASSOCIATED WITH A LOW IN SASKATCHEWAN WILL MOVE EWD ACROSS THE NRN
PLAINS WHILE A THERMAL LOW DEVELOPS OVER THE CENTRAL GREAT BASIN IN
THE AFTERNOON.

...CNTRL/SRN WY...
WITH INCREASING FLOW ALOFT...MUCH OF CNTRL/SRN WY WILL EXPERIENCE
BREEZY CONDITIONS AS VERTICAL MIXING DEEPENS THROUGH THE
AFTERNOON...YIELDING SUSTAINED SURFACE WLY WINDS AOA 20 MPH.
CONCURRENTLY...RH VALUES WILL FALL BELOW 15 PERCENT...RESULTING IN
CRITICAL FIRE WEATHER CONDITIONS.

...PORTIONS OF ERN ID...CNTRL UT...CNTRL/SRN NV...ECNTRL CA...
WITH ENHANCED SWLY/WSWLY FLOW ALOFT LINGERING AROUND THROUGH THE
AFTERNOON...DRY/DEEPLY MIXED BOUNDARY LAYERS WILL YIELD SUSTAINED
SURFACE WIND SPEEDS AOA 15 MPH AND RH VALUES AOB 15 PERCENT.  GIVEN
THE DRY FUELS ACROSS THE AREA...THESE METEOROLOGICAL CONDITIONS WILL
RESULT IN ELEVATED FIRE WEATHER CONDITIONS.  ECNTRL NV HAS THE BEST
CHANCE OF SEEING SUSTAINED WINDS AROUND 20 MPH FOR AN HOUR OR TWO
DURING THE AFTERNOON...LEADING TO LOCALLY CRITICAL CONDITIONS.

...NCNTRL/NERN MT...
DESPITE RELATIVELY COOL TEMPERATURES /HIGHS AROUND 80F/...
POST-FRONTAL...DOWNSLOPE WESTERLY SURFACE WINDS AOA 20 MPH ARE
EXPECTED OVER THE REGION.  ADDITIONALLY...AFTERNOON RH VALUES SHOULD
APPROACH 20 PERCENT...LEADING TO ELEVATED FIRE WEATHER
CONCERNS...ESPECIALLY FOR LOCATIONS THAT DID NOT RECEIVE WETTING
RAINS OVER THE PAST COUPLE OF DAYS.

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




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