Fire Weather Outlook Discussion
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000
FNUS21 KWNS 291558
FWDDY1

DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1057 AM CDT FRI AUG 29 2014

VALID 291700Z - 301200Z

NO CHANGES.

..BOTHWELL.. 08/29/2014

.PREV DISCUSSION... /ISSUED 0216 AM CDT FRI AUG 29 2014/

...SYNOPSIS...
GENERALLY PROGRESSIVE UPPER PATTERN EXPECTED THROUGHOUT THE PERIOD.
WEAKENING UPPER LOW INITIALLY CENTERED OVER THE CNTRL PLAINS WILL
PROGRESS QUICKLY NEWD INTO THE UPPER MIDWEST IN RESPONSE TO A
SHORTWAVE TROUGH MOVING THROUGH THE PACIFIC NW/BRITISH COLUMBIA AND
NRN ROCKIES. A PAIR OF UPPER RIDGES...ONE CENTERED OVER NRN MEXICO
AND THE OTHER NEAR THE CAROLINAS...WILL PERSIST WITH SOME
STRENGTHENING OF THE CAROLINA RIDGE ANTICIPATED. AT THE
SURFACE...LOW ASSOCIATED WITH THE CNTRL PLAINS SHORTWAVE WILL MOVE
NEWD...AHEAD OF A COLD FRONT DROPPING THROUGH THE NRN PLAINS. A
FRONTAL BOUNDARY WILL MOVE ACROSS THE PACIFIC NW...LIKELY REACHING
ID BY 06Z/SAT.

...PARTS OF N-CNTRL ORE AND S-CNTRL/SE WA...
SWLY WINDS ARE EXPECTED TO INCREASE TO NEAR 20 MPH AS THE SURFACE
PRESSURE GRADIENT TIGHTENS AHEAD OF THE AFOREMENTIONED SHORTWAVE
TROUGH AND ASSOCIATED FRONTAL BOUNDARY. INCREASED DOWNSLOPE EFFECTS
WILL HELP DROP RH VALUES IN TO THE LOW TO MID 20S DURING THE
AFTERNOON. THESE METEOROLOGICAL CONDITIONS COMBINED WITH DRY FUELS
ARE SUPPORTIVE OF AN ELEVATED TO LOCALLY CRITICAL FIRE THREAT.

...NWRN NV...
INCREASING SURFACE PRESSURE GRADIENT AND AT LEAST MODESTLY
INCREASING MID/UPPER FLOW WILL SUPPORT SWLY SURFACE WINDS NEAR 15 TO
20 MPH DURING THE LATE AFTERNOON. MIN RH VALUES AROUND 15 PERCENT
ARE ANTICIPATED WITH RESULTANT ELEVATED FIRE WEATHER CONDITIONS.

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



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