Storm Prediction Center Day 1 Fire Weather Outlook

Created: Tue Sep 27 15:23:03 UTC 2016 (20160927 1700Z Day 1 FireWX shapefile | 20160927 1700Z Day 1 FireWX KML)

Day 1 Fire Weather Forecast graphic
Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
No Risk Areas Forecast

Click for Day 1 FireWX Areal Outline Product

   ZCZC SPCFWDDY1 ALL
   FNUS21 KWNS 271519

   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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