Storm Prediction Center Day 2 Fire Weather Outlook

Created: Fri Aug 26 18:49:02 UTC 2016 (20160826 2000Z Day 2 FireWX shapefile | 20160826 2000Z Day 2 FireWX KML)

Day 2 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 2 FireWX Areal Outline Product (KWNSPFWFD2)

   ZCZC SPCFWDDY2 ALL
   FNUS22 KWNS 261844

   DAY 2 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0144 PM CDT FRI AUG 26 2016

   VALID 271200Z - 281200Z

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

   MINIMAL CHANGES HAVE BEEN MADE TO THE ONGOING ELEVATED/CRITICAL
   AREAS ACROSS PORTIONS OF THE PACIFIC NORTHWEST AND NRN ROCKIES...
   AS FORECAST REASONING PROVIDED IN THE PREVIOUS DISCUSSION BELOW
   REMAINS VALID.

   ..GLEASON.. 08/26/2016

   .PREV DISCUSSION... /ISSUED 0330 AM CDT FRI AUG 26 2016/

   ...SYNOPSIS...
   IN THE MID LEVELS...BROADLY CYCLONIC FLOW WITH EMBEDDED DISTURBANCES
   WILL CONTINUE TO OVERLIE PORTIONS OF THE WRN CONUS TO THE N-CNTRL
   CONUS. A MORE PROMINENT CYCLONIC PERTURBATION IS FORECAST TO MOVE
   EWD ACROSS PARTS OF WRN CANADA...WITH MID-LEVEL WLYS BECOMING
   ENHANCED ACROSS PARTS OF THE NWRN CONUS ON ITS SRN PERIPHERY. THIS
   SHOULD CONTRIBUTE TO ENHANCED FIRE-WEATHER CONDITIONS ACROSS PARTS
   OF WA/ORE/ID/MT. ELSEWHERE...ELEVATED/CRITICAL FIRE-WEATHER
   CONDITIONS ARE PRESENTLY UNLIKELY.

   ...PORTIONS OF CNTRL/SRN/ERN WA...NRN ORE...NRN ID...NRN/WRN MT...
   THE AFOREMENTIONED ENHANCED MID-LEVEL FLOW IS FORECAST TO OVERLIE
   THE REGION DURING PEAK HEATING. DIURNALLY STRENGTHENED VERTICAL
   MIXING WILL MANIFEST THE ENHANCED FLOW ALOFT AT THE SFC...RESULTING
   IN MODERATE TO STRONG AND GENERALLY WSWLY TO WLY WINDS.
   FURTHERMORE...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.

   AT THIS TIME...LOCAL-FLOW CHANNELING IN PROXIMITY TO THE COLUMBIA
   RIVER VALLEY AND VICINITY IS FORECAST TO YIELD A RELATIVE MAXIMUM IN
   WIND SPEEDS -- AFFECTING A PORTION OF FAR SRN WA AND FAR NRN ORE.
   SUSTAINED WINDS OF 20-25 MPH ARE FORECAST TO COMBINE WITH MINIMUM RH
   AROUND 17-20 PERCENT AMIDST DRY FUELS WARRANTING CRITICAL
   DESIGNATION IN THIS AREA.

   ELSEWHERE ACROSS THE REGION...ELEVATED FIRE-WEATHER CONDITIONS ARE
   ANTICIPATED...THOUGH SUSTAINED WINDS ARE NOT EXPECTED TO EXCEED
   15-20 MPH WHERE CRITICALLY LOW RH VALUES OCCUR. BORDERLINE-CRITICAL
   FIRE-WEATHER CONDITIONS COULD AFFECT A SMALL PORTION OF N-CNTRL MT
   WITHIN THE DOWNSLOPE-FLOW PATTERN OFF THE NRN ROCKY MOUNTAIN
   FRONT...THOUGH ANY CRITICAL RISK SHOULD BE BRIEF/SPOTTY.

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

      

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