ZCZC SPCFWDDY1 ALL
FNUS21 KWNS 260706
Day 1 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0206 AM CDT Wed Mar 26 2025
Valid 261200Z - 271200Z
...Synopsis...
Mid-level ridging will continue to intensify as it shifts eastward
into the central US today and tonight. A weak southern-stream trough
will slide under the ridge over parts of the Southwest and southern
Plains. A dry cold front will move eastward over the Appalachians
beneath a broad upper trough favoring gusty winds and dry conditions
over the east. Some fire-weather concerns are likely as isolated dry
thunderstorms and dry/breezy conditions overlap with areas of dry
fuels.
...Appalachians...
Westerly downslope winds are likely across portions of the southern
and central Appalachians this afternoon. Warm temperatures and
downslope drying will also contribute to low afternoon RH below
25-30% for much of the western Carolinas, northeast GA and western
VA. RH dropping to near critical thresholds, with wind speeds
approaching 15 mph (with stronger gusts) will favor several hours of
elevated to locally critical fire-weather conditions given very dry
fuels and recent fire activity.
...Southwest...
A subtle southern-stream shortwave trough will move underneath the
upper ridge into parts of the Southwest. Mid and low-level moisture
will gradually move west, reaching parts of NM and west TX. Weak
upslope flow and ascent from the trough will support isolated to
widely scattered thunderstorms this afternoon and evening. Dry
sub-cloud layers will favor poor precipitation efficiency with weak
buoyancy aloft. This could support a few dry thunderstorms with
gusty winds. Fuels are highly receptive to fire starts with ERCs
well above the 80th percentile over a large area. With little
wetting rainfall and the potential for lightning ignitions, an
Isolated dry thunder area will be maintained.
..Lyons.. 03/26/2025
U.S. Day 2 Fire Weather Outlook
ZCZC SPCFWDDY2 ALL
FNUS22 KWNS 260707
Day 2 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0207 AM CDT Wed Mar 26 2025
Valid 271200Z - 281200Z
...Synopsis...
Mid-level ridging over the western US will gradually move eastward
as an upper trough and strong jet begin to move offshore. A cold
front will move over much of the Southeast with a dry air mass and
high pressure in its wake. Over the west, a weak upper trough and
low-level moisture will move into parts of the southern Plains
supporting thunderstorm chances.
...Southwest and southern Plains...
With the weak upper trough remaining relatively stationary beneath
the upper ridge, another round of isolated diurnal storms will be
possible across much of NM into west TX. Likely high-based, storms
along the western edge of the more robust moisture return are
unlikely to produce significant wetting rainfall. However, steep
lapse rates and sufficient PWAT values (0.5-0.8 in) for weak
buoyancy may allow for isolated lightning strikes within a region of
dry and receptive fuels. Dry thunderstorm probabilities have been
maintained across parts of NM.
Ahead of the deeper moisture across parts of OK and KS, a few hours
of locally elevated conditions are possible with dry southerly
winds. While RH appears unlikely to reach critical criteria,
southerly gusts of 20-25 mph and afternoon minimums near 30% will
overlap with areas of very dry fuels. This may support some
localized fire-weather concerns.
...FL...
Relatively dry conditions are likely in a post-frontal air mass
across parts of the FL Peninsula Thursday afternoon and evening.
With light northeasterly winds and warm temperatures, inland RH
values below 35% appear likely across central and western parts of
the Peninsula. While surface winds are not expected to be overly
strong (generally less than 10 mph), occasional stronger gusts
overlapping with the low RH and very dry fuels could support a few
hours of locally elevated fire-weather conditions.
..Lyons.. 03/26/2025
U.S. Day 3-8 Fire Weather Outlook
ZCZC SPCFWDD38 ALL
FNUS28 KWNS 252140
Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0440 PM CDT Tue Mar 25 2025
Valid 271200Z - 021200Z
...D3/Thursday: Parts of NM...
10% dry thunderstorm probabilities have been maintained across parts
of NM for D3/Thursday. Isolated diurnal storm development will again
be possible across much of NM into west TX. Storms along the western
periphery of the deeper moist plume are unlikely to produce more
than light precipitation, with potential for lightning strikes to
result in fire starts within a region of dry and receptive fuels.
...D3/Thursday: Parts of FL...
Relatively dry conditions are expected to persist across parts of
the FL Peninsula on Thursday, within the influence of an offshore
surface ridge. Minimum RH values may drop below 35%, especially
across southeast portions of the peninsula. Winds are likely to
remain rather modest, but locally elevated conditions will be
possible during the afternoon and early evening.
...D4/Friday - D8/Tuesday: Parts of NM into west TX and vicinity...
While predictability regarding the surface and upper-air pattern
gradually decreases with time into early next week, it appears
likely that multiple shortwaves will move across the southern
Rockies into the Plains beginning on D4/Friday. 40% critical
probabilities were maintained for Friday/Saturday and added for
Sunday for parts of NM into west TX. The magnitude and north/east
extent of critical potential remains uncertain this weekend, and
will depend on the timing and amplitude of any ejecting shortwaves.
For D7/Monday into D8/Tuesday, confidence remains too low to
introduce critical probabilities, though elevated to potentially
critical conditions may persist or develop into early next week,
depending on the evolution of the pattern and persistent
mid/upper-level troughing across the Southwest.
..Dean.. 03/25/2025