Fire Weather Outlook Discussion
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FNUS21 KWNS 271519
FWDDY1

DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1019 AM CDT TUE SEP 27 2016

VALID 271700Z - 281200Z

...PORTIONS OF SOUTHERN CALIFORNIA...
CURRENT SURFACE OBSERVATIONS REVEAL HIGHER ELEVATION SITES WITH RH
VALUES IN THE TEENS TO LOW 20S AND WIND GUSTS OVER 20 MPH. THE BEST
JUXTAPOSITION OF STRONG WINDS AND LOW RH VALUES IS CURRENTLY IN THE
SANTA YNEZ RANGE NEAR SBA WHERE WIND GUSTS OVER 30 MPH ARE BEING
REPORTED AMIDST RH VALUES OF 14 AND 15 PERCENT. THESE ELEVATED TO
LOCALLY CRITICAL CONDITIONS WILL CONTINUE ACROSS THE REGION THROUGH
LATE MORNING. THE STRONGEST WINDS THIS AFTERNOON WILL BE OVER
ELEVATED PORTIONS OF SAN DIEGO AND RIVERSIDE COUNTIES BUT INCREASING
MOISTURE SHOULD HELP TEMPER THE OVERALL FIRE WEATHER POTENTIAL. NO
CHANGE IS NEEDED TO THE PREVIOUS OUTLOOK.

..MOSIER.. 09/27/2016

.PREV DISCUSSION... /ISSUED 0142 AM CDT TUE SEP 27 2016/

...SYNOPSIS...
A MID/UPPER-LEVEL LOW WILL DRIFT NORTH FROM BAJA CALIFORNIA TOWARDS
SOUTHERN CALIFORNIA...WHILE RIDGING TO ITS NORTH SLOWLY SLIDES
EASTWARD ACROSS THE NORTHERN GREAT BASIN TOWARDS THE CENTRAL
ROCKIES. TO THE EAST...STRONG CYCLONIC FLOW ALOFT WILL REMAIN
POSITIONED ACROSS THE GREAT LAKES...MID/UPPER MS VALLEY...AND OH
VALLEY...AS AN EMBEDDED LOW DROPS SOUTH FROM LAKE SUPERIOR TO
ILLINOIS/INDIANA.

...PORTIONS OF SOUTHERN CALIFORNIA...
06Z OBSERVATIONS EXHIBIT POCKETS OF ELEVATED FIRE-WEATHER CONCERNS
ACROSS TERRAIN-FAVORED LOCATIONS OF SOUTHERN CALIFORNIA...AND THESE
CONDITIONS SHOULD PERSIST PAST 12Z. FOLLOWING SUNRISE...RH VALUES
WILL FALL INTO THE TEENS/20S IN MANY LOCATIONS...WHILE POCKETS OF
SUSTAINED WINDS AROUND 15-20 MPH CONTINUE. GIVEN VERY DRY
FUELS...THESE METEOROLOGICAL CONDITIONS WILL SUPPORT ELEVATED
CONCERNS THROUGH PART OF THE AFTERNOON. THEREAFTER...A WEAKENING SFC
PRESSURE GRADIENT AND IMPROVED OVERNIGHT RH RECOVERY SHOULD FURTHER
DIMINISH THE FIRE-WEATHER THREAT.

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

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