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< Day 2 FW Outlook    
Day 3-8 Fire Weather Outlook Issued on Sep 25, 2017
Updated: Mon Sep 25 20:36:04 UTC 2017  (Print Version)
Note: Fire weather probabilistic information in MS-Word or PDF.
Note: Through September 29, 2015 the SPC will issue Experimental Probabilistic Fire Weather Dry Thunder and Strong Wind Outlooks for Days 3 to 8 with individual web graphics. Mouse over or click on the tabs above the graphic to view daily Probabilistic Dry Thunder (DryT) and Strong Wind (Wind) Fire Weather Outlooks. Please read the Product Description Document (PDD) and provide feedback using this link: "
Categorical D3-8 FW Otlk D3 D4 D5 D6 D7 D8
Exp. DryT/LowRH/Wind D3 D4 D5 D6 D7 D8
Population Cities CWAs Interstates Counties FEMA Regions

Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
No Risk Areas Forecast
D3Wed, Sep 27, 2017 - Thu, Sep 28, 2017 D6Sat, Sep 30, 2017 - Sun, Oct 01, 2017
D4Thu, Sep 28, 2017 - Fri, Sep 29, 2017 D7Sun, Oct 01, 2017 - Mon, Oct 02, 2017
D5Fri, Sep 29, 2017 - Sat, Sep 30, 2017 D8Mon, Oct 02, 2017 - Tue, Oct 03, 2017
(All days are valid from 12 UTC - 12 UTC)
   FNUS28 KWNS 252034

   Day 3-8 Fire Weather Outlook  
   NWS Storm Prediction Center Norman OK
   0334 PM CDT Mon Sep 25 2017

   Valid 271200Z - 031200Z

   The upper trough/low centered over the lower Colorado Valley at the
   beginning of the Day 3-8 period will slowly migrate northward toward
   the Rockies through the weekend. Another upper trough will move
   onshore the Pacific Northwest by the end of this week and overspread
   much of the Intermountain West region through early next week. The
   main fire weather concern during the period will remain over
   portions of southern California with hot and dry conditions
   persisting in the presence of weak offshore flow through the

   ...Day 3/Wed -- Portions of Southern California Coastal Ranges and

   Elevated fire weather conditions will persist into Wednesday across
   portions of southern California. Deep layer northerly flow will
   likely be strongest during the morning before the upper low begins
   to pull away from the region. However, the surface pressure gradient
   will remain on the weak side, limiting stronger offshore winds from
   developing. Wind speeds around 15-25 mph with gusts to 40 mph will
   be possible during the morning in typical wind prone areas with
   lighter winds elsewhere. By afternoon, wind speeds should begin to
   diminish. High temperatures will again be in the 80s and 90s with RH
   values dropping into the 10-15 percent range. This could again
   result in some localized brief critical conditions. 

   Weak offshore winds will continue into the weekend, though speeds
   will be much lighter compared to the Day 1-3 period. However,
   temperatures will climb even higher, with some valley locations
   reaching triple digits and RH values perhaps falling into the single
   digits. A lack of stronger winds will preclude introduction of any
   fire weather areas at this time however.

   ..Leitman.. 09/25/2017

   ...Please see for graphic product...


Fire Wx Graphics | Links | Product Info | Fire Weather Composite Maps (updated 4 times daily)

To retrieve previous Day 3-8 FireWX outlooks, type in the date you wish to retrieve in YYMMDD (e.g., 060205 for Feb. 5, 2006).
Data available since January 1, 2006.
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Page last modified: September 25, 2017
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