Skip Navigation Links weather.gov 
NOAA logo-Select to go to the NOAA homepage NOAA's National Weather Service   Select to go to the NWS homepage
Storm Prediction Center
navigation bar left  
  navigation bar end cap


 
USA.gov is the U.S. Government's official Web portal to all Federal, state and local government Web resources and services.

    Day 2 FW Outlook >
Aug 3, 2015 Day 1 Fire Weather Outlook
Updated: Mon Aug 3 15:59:02 UTC 2015 (Print Version | 20150803 1700Z Day 1 FireWX shapefile | 20150803 1700Z Day 1 FireWX KML)
Day 1 Fire
 Population  Cities/Towns  CWAs  Interstates  Counties  FEMA Regions  Day 1 Surface Analysis

Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
No Risk Areas Forecast
   ZCZC SPCFWDDY1 ALL
   FNUS21 KWNS 031554

   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   1054 AM CDT MON AUG 03 2015

   VALID 031700Z - 041200Z

   NO CHANGES TO ONGOING FORECAST.  SCATTERED THUNDERSTORM ACTIVITY
   REMAINS POSSIBLE ACROSS A LARGE PART OF THE INTERIOR PACIFIC
   NORTHWEST AND NORTHERN ROCKY MOUNTAINS.  LATEST MODEL GUIDANCE
   SUGGESTS THAT THESE STORMS WILL BE A MIXTURE OF BOTH WET AND DRY
   TYPES...WITH A SLIGHTLY HIGHER POTENTIAL FOR DRY THUNDER IN MONTANA
   COINCIDENT WITH SLIGHTLY DRIER THERMODYNAMIC PROFILES.  FIRE STARTS
   ARE POSSIBLE IN AREAS OUTSIDE HEAVIER THUNDERSTORM CORES THAT DO NOT
   RECEIVE WETTING RAINS...AND ANY GUSTY/ERRATIC WINDS NEAR
   THUNDERSTORMS MAY COMPLICATE FIRE SUPPRESSION EFFORTS.

   OTHERWISE...NO CHANGES ARE NEEDED TO THE ONGOING FORECAST.

   ..COOK.. 08/03/2015

   .PREV DISCUSSION... /ISSUED 0359 AM CDT MON AUG 03 2015/

   ...SYNOPSIS...
   AN ELONGATED UPPER TROUGH STRETCHING FROM THE PACIFIC NORTHWEST TO
   NEAR THE FOUR CORNERS REGION SHOULD CONTINUE LIFTING NEWD
   TODAY...WHILE ANOTHER UPPER TROUGH/CLOSED LOW CURRENTLY OVER BRITISH
   COLUMBIA WILL BEGIN TO DROP SLOWLY SEWD. MEANWHILE...AN UPPER RIDGE
   IS EXPECTED TO BEGIN REBUILDING OVER THE DESERT SOUTHWEST BY THE END
   OF THE PERIOD. SOME THREAT FOR ISOLATED DRY THUNDERSTORMS WILL
   CONTINUE OVER PARTS OF THE NORTHWEST...WITH LOCALLY ELEVATED WIND/RH
   CONDITIONS POSSIBLE OVER PARTS OF THE COLUMBIA BASIN.

   ...DRY TSTM THREAT: INTERIOR NORTHWEST/NRN ROCKIES...
   ISOLATED TO WIDELY SCATTERED TSTMS ARE ANTICIPATED ACROSS PORTIONS
   OF THE INTERIOR NORTHWEST INTO THE CNTRL/NRN ROCKIES AS THE UPPER
   TROUGH LIFTS NEWD. OBSERVED SOUNDINGS AND GPS-BASED ANALYSES
   INDICATE PW VALUES IN THE 0.6 - 1 INCH RANGE ALONG AND AHEAD OF THE
   TROUGH...WHICH ARE SUFFICIENT FOR LOCALLY WETTING RAINS UNDERNEATH
   THE STRONGEST CORES. HOWEVER...WHERE STRONG HEATING AND DRYING OF
   THE BOUNDARY LAYER CAN OCCUR THIS AFTERNOON...EVAPORATION MAY LIMIT
   RAINFALL AMOUNTS AND RESULT IN A THREAT OF AT LEAST ISOLATED DRY
   TSTMS. THE GREATEST CONCURRENCE OF TSTM COVERAGE AND HOT/WELL-MIXED
   CONDITIONS IS EXPECTED TO BE OVER PARTS OF CNTRL ID INTO WRN
   MT...BUT A FAIRLY BROAD REGION WILL SEE AN ISOLATED THREAT OF MIXED
   WET/DRY TSTMS WHERE FUELS ARE RECEPTIVE. WINDS IN THE VICINITY OF
   THESE STORMS MAY BECOME GUSTY AND ERRATIC.

   ...WIND/RH THREAT: PORTIONS OF THE COLUMBIA RIVER VALLEY...
   LOW-LEVEL WLY FLOW IS EXPECTED TO INCREASE THIS AFTERNOON ACROSS THE
   ERN SLOPES OF THE CASCADES INTO PORTIONS OF THE COLUMBIA RIVER
   VALLEY. WHILE TEMPS WILL COOL SLIGHTLY COMPARED TO PREVIOUS
   DAYS...RH VALUES ARE STILL EXPECTED TO DROP INTO THE 10-20 PERCENT
   RANGE AT PEAK HEATING...WHICH WILL COMBINE WITH SUSTAINED WINDS OF
   15-20 MPH TO PRODUCE ELEVATED WIND/RH CONDITIONS IN AN AREA OF VERY
   DRY FUELS.

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

   CLICK FOR DAY 1 FIREWX AREAL OUTLINE PRODUCT (KWNSPFWFD1)
      
Related Fire Weather Web Links
Top/Forecast Products/Home
Weather Topics:
Watches, Mesoscale Discussions, Outlooks, Fire Weather, All Products, Contact Us

NOAA / National Weather Service
National Centers for Environmental Prediction
Storm Prediction Center
120 David L. Boren Blvd.
Norman, OK 73072 U.S.A.
spc.feedback@noaa.gov
Page last modified: August 03, 2015
Disclaimer
Information Quality
Help
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities