Day 3-8 Fire Weather Forecast Issued on Dec 8, 2021

Updated: Wed Dec 8 21:41:02 UTC 2021

Day 3-8 Fire Weather Forecast Graphic Issued on Dec 8, 2021
 
Day 3 Probabilistic Dry Thunder/Strong Wind FireWX Forecast Graphic Issued on Dec 8, 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 Dec 8, 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 Dec 8, 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 Dec 8, 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 Dec 8, 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 Dec 8, 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
D3 13,360 39,963 Hereford, TX...Tucumcari, NM...
D3Fri, Dec 10, 2021 - Sat, Dec 11, 2021 D6Mon, Dec 13, 2021 - Tue, Dec 14, 2021
D4Sat, Dec 11, 2021 - Sun, Dec 12, 2021 D7Tue, Dec 14, 2021 - Wed, Dec 15, 2021
D5Sun, Dec 12, 2021 - Mon, Dec 13, 2021 D8Wed, Dec 15, 2021 - Thu, Dec 16, 2021
(All days are valid from 12 UTC - 12 UTC)
   ZCZC SPCFWDD38 ALL
   FNUS28 KWNS 082137

   Day 3-8 Fire Weather Outlook  
   NWS Storm Prediction Center Norman OK
   0337 PM CST Wed Dec 08 2021

   Valid 101200Z - 161200Z

   Fire weather concerns for the extended period will continue to be
   focused across the southern to central High Plains where the
   probability for wetting rainfall will remain limited and windy
   conditions will be common most days. Outside of this region,
   seasonally cool temperatures and wetting precipitation chances
   appear to mitigate additional fire weather concerns. 

   ...Southern High Plains...
   An amplified upper-level trough is forecast to shift into the Plains
   through the day D3/Friday. As this occurs, a surface low deepening
   over KS will induce strong west winds between 20-25 mph from east NM
   into central OK/south-central KS. Strengthening flow at 850 mb will
   augment surface pressure-gradient winds and may support frequent
   wind gusts upwards of 40-45 mph. Several forecast signals (such as
   high probability for exceeding 20 mph sustained winds in ensemble
   guidance, the anomalous strength of the surface low, and 850 and 700
   mb winds near the 90th percentile compared to climatology) yield
   high confidence in the wind forecast. However, the coverage of RH
   reductions into the 15-20% range is questionable due to a modest
   influx of moisture and possible mid/high-level cloud cover. A 70%
   risk area is introduced for portions of northeast NM and the western
   TX Panhandle where confidence in sufficiently low RH is highest. 

   Regardless of this uncertainty, ERC values near or above the 90th
   percentile coupled with the strong winds will support fire weather
   concerns for most of the region - including across the OK Panhandle
   and into southwest KS where RH reductions will not be as pronounced.
   Although a cold frontal passage is expected during the afternoon
   hours, gusty winds behind the front may maintain the wind-driven
   fire weather threat. Further refinement of the risk area appears
   likely as confidence in the RH forecast improves through Friday. 

   Beyond D3/Friday, ensemble guidance shows high confidence in robust
   upper-level ridging over the eastern two-thirds of the CONUS that
   will establish a southwesterly flow regime over the southern High
   Plains. This may support multiple days of warm, dry, and windy
   conditions across northeast NM into the TX/OK Panhandles and
   adjacent areas of southeast CO/southwest KS. While this potential is
   noted, confidence in the fire weather potential for any one day is
   too low for additional risk areas.

   ..Moore.. 12/08/2021

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

   $$

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