Day 3-8 Fire Weather Forecast Issued on Nov 23, 2021
Updated: Tue Nov 23 22:02:03 UTC 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 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 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 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 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 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)
ZCZC SPCFWDD38 ALL
FNUS28 KWNS 232158
Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0358 PM CST Tue Nov 23 2021
Valid 251200Z - 011200Z
An upper trough will move eastward across the central and eastern
CONUS through the period, with a belt of enhanced northwesterly
midlevel flow becoming established across the Great Plains. At the
same time, a midlevel cut-off low will develop over the Southwest
and meander over the Baja Peninsula through around Day 4/Friday,
resulting in deep northeasterly offshore flow over southern
California. By Day 6/Sunday, an upper ridge will build over much of
the West and persist through the remainder of the period.
...Days 3-4/Thursday-Friday - Southern California...
Deep northeasterly offshore flow will persist from Day 3/Thursday
through Day 4/Friday, with poor RH recoveries expected overnight.
The best overlap of 20+ mph surface winds and 15% RH is expected on
Thursday, hence the introduction of 70% Critical probabilities.
Winds will gradually subside on Friday, with critically low RH
remaining in place through the morning, with 40% probabilities
introduced.
...Days 3-5/Thursday-Saturday - Central and Southern High Plains...
Enhanced northwesterly midlevel flow will support periods of locally
dry and breezy conditions each afternoon, though confidence in
timing/coverage of these conditions remains too low to include any
Critical probabilities at this time.
..Weinman/Squitieri.. 11/23/2021
...Please see www.spc.noaa.gov/fire for graphic product...
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