U.S. Day 1 Fire Weather Outlook
ZCZC SPCFWDDY1 ALL
FNUS21 KWNS 291432
Day 1 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0932 AM CDT Mon May 29 2023
Valid 291700Z - 301200Z
...NO CRITICAL AREAS...
No changes are needed to the ongoing forecast. Locally elevated
conditions appear possible across northern MN early this afternoon
ahead of approaching cloud cover/showers, but the spatial/temporal
duration of this threat remains too limited to warrant highlights.
More widespread elevated conditions are probable across the southern
Great Basin, but fuel status remains too limited for a more robust
threat. See the previous discussion for additional details.
..Moore.. 05/29/2023
.PREV DISCUSSION... /ISSUED 0126 AM CDT Mon May 29 2023/
...Synopsis...
An upper-level low will move along the central California coast
today. Downstream of the trough, a shortwave ridge will intensify
across the Southwest. A weak trough will move into the upper
Midwest. At the surface, a diffuse surface trough will extend from
the northern Plains southwestward into the southern High Plains. Dry
conditions will remain across the Southwest. Winds, however, will be
quite weak. For North Dakota and Minnesota, breezy and marginally
dry conditions are probable. As compared to previous days, surface
trajectories will emanate from areas of greater moisture and RH will
likely stay above critical thresholds. Overall fire weather concerns
across the CONUS will remain low.
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U.S. Day 2 Fire Weather Outlook
ZCZC SPCFWDDY2 ALL
FNUS22 KWNS 291656
Day 2 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
1156 AM CDT Mon May 29 2023
Valid 301200Z - 311200Z
...NO CRITICAL AREAS...
No changes to the forecast are needed. Elevated conditions appear
likely across parts of AZ into western NM Tuesday afternoon, but the
overlap of dry/windy conditions and receptive fuels appears limited
(mainly confined to western NM) based on latest ensemble guidance
and fuel reports. Trends will be monitored and highlights may be
introduced if confidence in the coverage/duration of elevated
conditions across western NM improves. See the previous discussion
for additional details.
..Moore.. 05/29/2023
.PREV DISCUSSION... /ISSUED 0127 AM CDT Mon May 29 2023/
...Synopsis...
The upper-level trough across southern California will make progress
into the Lower Colorado Valley and eventually the Four Corners on
Tuesday. The surface response to this feature appears muted in
guidance. A lee trough is forecast to develop in the southern High
Plains, though this trough will be weak on account of the regional
shortwave ridging aloft. Dry conditions will continue to persist in
the Southwest, west of the Divide. The approach of the trough will
promote some increase in surface winds. Without better-defined
surface features, though, elevated conditions that do develop are
likely to be localized. At present, parts of southern Arizona appear
favored for these conditions.
U.S. Day 3-8 Fire Weather Outlook
ZCZC SPCFWDD38 ALL
FNUS28 KWNS 292014
Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0314 PM CDT Mon May 29 2023
Valid 311200Z - 061200Z
Fire weather concerns will continue to be focused across the
Southwest through the extended period with a relatively higher fire
weather threat expected on D3/Wednesday. Confidence remains high in
the development of anomalously high-amplitude ridging across the
central/northern CONUS through the work week that will result in dry
conditions across parts of the Southwest and Great Lakes. While
drying fuels are expected in both regions, weak surface winds over
the Great Lakes will limit predictable fire weather concerns to
AZ/NM through next weekend.
...D3/Wednesday - AZ/NM...
Recent long-range guidance shows the eastward progression of the
upper low off the CA coast into the Southwest over the next 48-72
hours. Surface pressure falls within the left-exit region of the
attendant upper jet will support strengthening winds across AZ and
NM Wednesday afternoon. Ensemble guidance shows reasonably high
confidence in 15+ mph winds with swaths of 20-25 mph winds probable
across western to central NM. Antecedent dry conditions featuring RH
in the single digits to low teens and dry fuels will support a fire
weather threat as winds increase through the day. While areas of
critical conditions are probable, spread in ensemble guidance casts
some uncertainty into the coverage of such conditions.
..Moore.. 05/29/2023
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