Fire Weather Outlook Discussion
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FNUS21 KWNS 091619
FWDDY1

DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1018 AM CST MON DEC 09 2013

VALID 091700Z - 101200Z

PREVIOUS FORECAST DISCUSSION IS STILL VALID.

..SMITH.. 12/09/2013

.PREV DISCUSSION... /ISSUED 0237 AM CST MON DEC 09 2013/

...SYNOPSIS...
MID-LEVEL SHORTWAVE IMPULSES WILL PIVOT AROUND A BROAD AREA OF
CYCLONIC FLOW COVERING THE CNTRL UNITED STATES. THIS WILL OCCUR AS A
SHORTWAVE TROUGH ADVANCES SEWD FROM THE SRN CANADIAN PRAIRIE
PROVINCES INTO THE N-CNTRL STATES. SUBSIDENCE IN THE WAKE OF THE
AFOREMENTIONED DISTURBANCES WILL SUPPORT A STRONG SFC ANTICYCLONE
OVER THE CNTRL GREAT BASIN.

...COASTAL RANGES AND ADJACENT FOOTHILLS OF SRN CA...
A TIGHTENING PRESSURE GRADIENT SW OF THE ANTICYCLONE WILL YIELD NELY
TO ELY SFC WINDS STRENGTHENING TO AROUND 20-25 MPH WITH GUSTS
REACHING AROUND 40-50 MPH TODAY. LOCALLY STRONGER WINDS WILL BE
POSSIBLE...ESPECIALLY THROUGH FAVORED PASSES AND CANYONS. SIMILAR
WINDS ARE FORECAST TO PERSIST INTO TONIGHT. DOWNSLOPE FLOW EFFECTS
WILL AID IN RH VALUES FALLING TO AROUND THE UPPER SINGLE DIGITS TO
20 PERCENT IN MANY AREAS...WITH POOR OVERNIGHT RH RECOVERY
ANTICIPATED TONIGHT. THE COMBINATION OF STRONG WINDS AND LOW RH WILL
SUPPORT AN ENHANCEMENT TO THE FIRE WEATHER THREAT...AS ADDRESSED BY
THE ELEVATED FIRE WEATHER DESIGNATION. HOWEVER...RELATIVELY COOL SFC
CONDITIONS ARE EXPECTED TO MITIGATE THE FIRE WEATHER RISK TO SOME
EXTENT. ADDITIONALLY...THE OCCURRENCE OF RECENT PRECIPITATION IS
EXPECTED TO LIMIT THE FIRE WEATHER POTENTIAL. ACCORDINGLY...CRITICAL
DESIGNATION IS NOT WARRANTED.

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