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< Day 2 FW Outlook    
Day 3-8 Fire Weather Outlook Issued on Sep 19, 2017
Updated: Tue Sep 19 21:02:02 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
D3Thu, Sep 21, 2017 - Fri, Sep 22, 2017 D6Sun, Sep 24, 2017 - Mon, Sep 25, 2017
D4Fri, Sep 22, 2017 - Sat, Sep 23, 2017 D7Mon, Sep 25, 2017 - Tue, Sep 26, 2017
D5Sat, Sep 23, 2017 - Sun, Sep 24, 2017 D8Tue, Sep 26, 2017 - Wed, Sep 27, 2017
(All days are valid from 12 UTC - 12 UTC)
   FNUS28 KWNS 192100

   Day 3-8 Fire Weather Outlook  
   NWS Storm Prediction Center Norman OK
   0400 PM CDT Tue Sep 19 2017

   Valid 211200Z - 271200Z

   Much of the extended period will be characterized by a building
   ridge across the eastern US and a persistent trough across most of
   the western US. Between these two features, a corridor of strong
   southwesterly flow aloft will exist from the Desert Southwest
   northeastward to the upper Great Lakes.

   With enhanced tropospheric flow over parts of the Southwest, Great
   Basin, Rockies, and adjacent High Plains, breezy conditions will
   likely be realized in many parts of these regions. Dry tropospheric
   air will remain established across much of the western US as well,
   such that RH values around 10-25% are achieved by afternoon. While
   these meteorological conditions may favor pockets of critical
   concerns, marginal fuels in many locations preclude the introduction
   of a 70%/critical area. Additionally, the ongoing 40% area has been
   adjusted to align with zones of more receptive fuels.

   ...D4/Friday and onward...
   The persistence of the trough over the West suggests a channel of
   breezy conditions will be maintained from the Southwest to the
   central Plains into the upcoming weekend. However, gradually
   increasing RH values and moistening fuels lend considerable
   uncertainty as to where, if any, enhanced fire-weather concerns may
   occur. In turn, no probabilities have been introduced after

   ..Picca.. 09/19/2017

   ...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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