Day 3-8 Fire Weather Forecast Issued on Oct 20, 2021

Updated: Wed Oct 20 20:35:03 UTC 2021

Day 3-8 Fire Weather Forecast Graphic Issued on Oct 20, 2021
 
Day 3 Probabilistic Dry Thunder/Strong Wind FireWX Forecast Graphic Issued on Oct 20, 2021

Day 3 Probabilistic Fire Weather Outlooks:
Probability of dry thunderstorms with dry fuels within 12 miles of a point denoted by scalloped lines for
- Critical Area - 40% (blue)
- Marginal Area - 10% (brown)
Probability of strong winds, low RH, and warm temperatures concurrent for at least 3 hours with dry fuels within 12 miles of a point denoted by solid lines for
- Critical Area - 70% (red)
- Marginal Area - 40% (orange)


Day 4 Probabilistic Dry Thunder/Strong Wind FireWX Forecast Graphic Issued on Oct 20, 2021

Day 4 Probabilistic Fire Weather Outlooks:
Probability of dry thunderstorms with dry fuels within 12 miles of a point denoted by scalloped lines for
- Critical Area - 40% (blue)
- Marginal Area - 10% (brown)
Probability of strong winds, low RH, and warm temperatures concurrent for at least 3 hours with dry fuels within 12 miles of a point denoted by solid lines for
- Critical Area - 70% (red)
- Marginal Area - 40% (orange)


Day 5 Probabilistic Dry Thunder/Strong Wind FireWX Forecast Graphic Issued on Oct 20, 2021

Day 5 Probabilistic Fire Weather Outlooks:
Probability of dry thunderstorms with dry fuels within 12 miles of a point denoted by scalloped lines for
- Critical Area - 40% (blue)
- Marginal Area - 10% (brown)
Probability of strong winds, low RH, and warm temperatures concurrent for at least 3 hours with dry fuels within 12 miles of a point denoted by solid lines for
- Critical Area - 70% (red)
- Marginal Area - 40% (orange)


Day 6 Probabilistic Dry Thunder/Strong Wind FireWX Forecast Graphic Issued on Oct 20, 2021

Day 6 Probabilistic Fire Weather Outlooks:
Probability of dry thunderstorms with dry fuels within 12 miles of a point denoted by scalloped lines for
- Critical Area - 40% (blue)
- Marginal Area - 10% (brown)
Probability of strong winds, low RH, and warm temperatures concurrent for at least 3 hours with dry fuels within 12 miles of a point denoted by solid lines for
- Critical Area - 70% (red)
- Marginal Area - 40% (orange)


Day 7 Probabilistic Dry Thunder/Strong Wind FireWX Forecast Graphic Issued on Oct 20, 2021

Day 7 Probabilistic Fire Weather Outlooks:
Probability of dry thunderstorms with dry fuels within 12 miles of a point denoted by scalloped lines for
- Critical Area - 40% (blue)
- Marginal Area - 10% (brown)
Probability of strong winds, low RH, and warm temperatures concurrent for at least 3 hours with dry fuels within 12 miles of a point denoted by solid lines for
- Critical Area - 70% (red)
- Marginal Area - 40% (orange)


Day 8 Probabilistic Dry Thunder/Strong Wind FireWX Forecast Graphic Issued on Oct 20, 2021

Day 8 Probabilistic Fire Weather Outlooks:
Probability of dry thunderstorms with dry fuels within 12 miles of a point denoted by scalloped lines for
- Critical Area - 40% (blue)
- Marginal Area - 10% (brown)
Probability of strong winds, low RH, and warm temperatures concurrent for at least 3 hours with dry fuels within 12 miles of a point denoted by solid lines for
- Critical Area - 70% (red)
- Marginal Area - 40% (orange)


Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
No Risk Areas Forecast
D3Fri, Oct 22, 2021 - Sat, Oct 23, 2021 D6Mon, Oct 25, 2021 - Tue, Oct 26, 2021
D4Sat, Oct 23, 2021 - Sun, Oct 24, 2021 D7Tue, Oct 26, 2021 - Wed, Oct 27, 2021
D5Sun, Oct 24, 2021 - Mon, Oct 25, 2021 D8Wed, Oct 27, 2021 - Thu, Oct 28, 2021
(All days are valid from 12 UTC - 12 UTC)
   ZCZC SPCFWDD38 ALL
   FNUS28 KWNS 202031

   Day 3-8 Fire Weather Outlook  
   NWS Storm Prediction Center Norman OK
   0331 PM CDT Wed Oct 20 2021

   Valid 221200Z - 281200Z

   Fire weather potential will likely increase late this week through
   early next week as a more active upper-level pattern becomes
   established. Long-range ensemble guidance continues to depict a
   series of upper waves progressing across the western and central
   CONUS that will likely result in dry/windy conditions at the surface
   for parts of the Great Basin and southern High Plains. 

   ...D3/Friday - Southern Great Basin...
   Most guidance is in good agreement regarding the passage of a
   shortwave trough across CA into the Great Basin during the day
   Friday. Surface pressure falls ahead of this wave combined with
   increasing flow over the Sierra will likely support dry, windy
   conditions in the lee of the terrain and across the southern Great
   Basin. While ensemble solutions suggest elevated, to perhaps locally
   critical, wind/RH combinations are possible, fuels across most of
   the region are not receptive and may not sufficiently cure by Friday
   afternoon.  

   ...D4/Saturday through D7/Tuesday - Southern High Plains...
   Parts of the southern High Plains may see one or more days of
   elevated fire weather conditions during the Saturday to Tuesday time
   frame. A surface low deepening over the Plains through the day
   Saturday will strengthen southwesterly downslope flow off the
   southern Rockies. Areas of elevated to critical conditions seem
   probable for northeastern NM into adjacent areas of the OK/TX
   Panhandles Saturday afternoon. A higher amplitude upper wave moving
   into the Four Corners Tuesday shows a stronger, more persistent wind
   signal in ensemble guidance with decent probabilities for sustained
   winds near critical thresholds across the region. Although fuels are
   only modestly dry at the moment, dry and unseasonably warm
   temperatures are expected across much of the southern Plains. This
   will help cure fuels during the D4-D7 period and increase the
   susceptibility to fire weather conditions.

   ..Moore.. 10/20/2021

   ...Please see www.spc.noaa.gov/fire for graphic product...

   $$

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