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000
FNUS21 KWNS 101643
FWDDY1

DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1042 AM CST TUE DEC 10 2013

VALID 101700Z - 111200Z

...NO CRITICAL AREAS...

NO CHANGES...SEE PREVIOUS DISCUSSION BELOW.

..DEAN.. 12/10/2013

.PREV DISCUSSION... /ISSUED 0327 AM CST TUE DEC 10 2013/

...SYNOPSIS...
A BROAD AREA OF CYCLONIC FLOW WILL OVERLIE THE CNTRL/ERN UNITED
STATES IN THE MID LEVELS...WHILE A PAIR OF SHORTWAVE TROUGHS
ADVANCES FROM THE UPPER/MIDDLE MS VALLEY TO THE NORTHEAST.
ADDITIONAL IMPULSES UPSTREAM WILL MOVE SEWD ACROSS PORTIONS OF THE
NWRN/N-CNTRL CONUS...SERVING TO REINFORCE THE BROADLY CYCLONIC FLOW.
AT THE SFC...HIGH PRESSURE OVER THE CNTRL GREAT BASIN WILL WEAKEN
WITH TIME...AND WILL BE ASSOCIATED WITH A WEAKENING PRESSURE
GRADIENT OVER PORTIONS OF SRN CA.

...COASTAL RANGES AND ADJACENT FOOTHILLS OF SRN CA...
AREAS OF CRITICALLY LOW RH VALUES WILL PERSIST ACROSS THE REGION FOR
TODAY THROUGH TONIGHT...AS DOWNSLOPE EFFECTS AID IN BOUNDARY-LAYER
WARMING/DRYING AMIDST A DRY AIR MASS SAMPLED BY THE MONDAY EVENING
MIRAMAR NAVAL AIR STATION SOUNDING -- E.G. PW OF 0.15 INCH. MINIMUM
RH VALUES AROUND 5-20 PERCENT ARE ANTICIPATED IN MANY
LOCATIONS...WITH POOR RH RECOVERY ANTICIPATED OVERNIGHT TONIGHT.
WHILE WIND SPEEDS COULD BE MARGINALLY STRONG ON A
SHORT-DURATION/LOCALIZED BASIS THIS MORNING...THE OVERALL TENDENCY
WILL BE FOR A RELAXATION OF THE SFC PRESSURE GRADIENT COMMENSURATE
WITH DECREASING NELY TO ELY SFC WINDS. THIS WILL LIMIT THE FIRE
WEATHER THREAT SUCH THAT FIRE WEATHER HIGHLIGHTS HAVE NOT BEEN
INCLUDED. FURTHERMORE...THE OCCURRENCE OF RECENT PRECIPITATION COULD
MITIGATE THE FIRE WEATHER POTENTIAL TO SOME EXTENT.

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