Storm Prediction Center Day 1 Fire Weather Outlook

Created: Sat Aug 27 16:04:02 UTC 2016 (20160827 1700Z Day 1 FireWX shapefile | 20160827 1700Z Day 1 FireWX KML)

Day 1 Fire Weather Forecast graphic
Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
Critical 12,235 469,943 Kennewick, WA...Richland, WA...Pasco, WA...Walla Walla, WA...Pullman, WA...

Click for Day 1 FireWX Areal Outline Product

   ZCZC SPCFWDDY1 ALL
   FNUS21 KWNS 271600

   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   1100 AM CDT SAT AUG 27 2016

   VALID 271700Z - 281200Z

   ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF SRN WA AND FAR NRN
   ORE...

   NO CHANGES HAVE BEEN MADE TO THE ELEVATED/CRITICAL AREAS ACROSS
   PARTS OF THE PACIFIC NORTHWEST AND NRN/CNTRL ROCKIES. SEE THE
   PREVIOUS DISCUSSION BELOW FOR MORE INFORMATION.

   ..GLEASON.. 08/27/2016

   .PREV DISCUSSION... /ISSUED 0352 AM CDT SAT AUG 27 2016/

   ...SYNOPSIS...
   BROADLY CYCLONIC MID-LEVEL FLOW...WITH EMBEDDED DISTURBANCES...WILL
   OVERLIE PORTIONS OF THE WRN CONUS TO THE N-CNTRL CONUS. A SHORTWAVE
   TROUGH IS FORECAST TO MOVE EWD ACROSS PARTS OF WRN CANADA...WITH
   MID-LEVEL WLYS BECOMING ENHANCED ACROSS PARTS OF THE NWRN CONUS.
   THIS SHOULD CONTRIBUTE TO ENHANCED FIRE-WEATHER CONDITIONS ACROSS
   PARTS OF WA/ORE/ID/MT/WY/UT. ELSEWHERE...ELEVATED/CRITICAL
   FIRE-WEATHER CONDITIONS ARE UNLIKELY.

   ...PORTIONS OF CNTRL/SRN/ERN WA...NRN ORE...ID...CNTRL/WRN
   MT...WY...FAR NERN UT...
   DIURNALLY STRENGTHENED VERTICAL MIXING IS FORECAST TO MANIFEST THE
   ENHANCED FLOW ALOFT AT THE SFC...RESULTING IN MODERATE TO STRONG AND
   GENERALLY WSWLY TO WLY WINDS. STRONG SFC HEATING...COMBINED WITH
   AREAS OF DOWNSLOPE-FLOW-ENCOURAGED WARMING/DRYING...SHOULD ALLOW RH
   VALUES TO FALL SUFFICIENTLY LOW IN SUPPORT OF AN INCREASED
   FIRE-WEATHER RISK.

   CRITICAL FIRE-WEATHER CONDITIONS ARE EXPECTED TO OCCUR ACROSS
   PORTIONS OF SRN WA AND FAR NRN ORE. THIS INCLUDES PORTIONS OF THE
   COLUMBIA RIVER VALLEY AND VICINITY...WHERE LOCAL-FLOW CHANNELING IS
   FORECAST TO SUPPORT SUSTAINED WINDS OF 20-25 MPH. WITH MINIMUM RH
   AROUND 17-20 PERCENT AND DRY FUELS IN PLACE...CRITICAL DESIGNATION
   IS IN EFFECT. ELSEWHERE ACROSS THE REGION...ELEVATED FIRE-WEATHER
   CONDITIONS ARE ANTICIPATED...THOUGH SUSTAINED WINDS ARE NOT EXPECTED
   TO EXCEED 20 MPH WHERE CRITICALLY LOW RH VALUES OCCUR ON ANY MORE
   THAN A BRIEF/SPOTTY BASIS.

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

      

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