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U.S. Day 1 Fire Weather Outlook
ZCZC SPCFWDDY1 ALL
FNUS21 KWNS 311634
Day 1 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
1134 AM CDT Tue Mar 31 2026
Valid 311700Z - 011200Z
...Morning Update...
A southward extension was made to the Elevated area in southeast NM
and West TX to account for downslope winds east of the Sacramento
and Guadalupe Mountains. Westerly lee-surface winds up to 15 mph
amid 10-15 percent RH are expected atop dry fuels. A small part of
the southeastern TX Panhandle received appreciable rainfall
yesterday evening, thus has been trimmed from the Elevated risk
area. The rest of the forecast remains on track, see the previous
discussion for more information.
In northeast UT and northwest CO, breezy southwesterly winds of
15-25 mph and 15-20 percent RH will occur over the Colorado Plateau
and Uinta Basin ahead of precipitation arrival. However, cloud cover
should alleviate broader fire concerns across the region, precluding
the introduction of elevated highlights.
..Elizalde-Garcia/Williams.. 03/31/2026
.PREV DISCUSSION... /ISSUED 0211 AM CDT Tue Mar 31 2026/
...Synopsis...
A mid-level trough will impinge on the southern Rockies today,
supporting surface low development along the TX Panhandle/OK border.
Dry downslope flow will occur along the southern High Plains,
resulting 15 mph sustained westerly surface winds amid 15 percent
RH, warranting Elevated highlights. Isolated high-based
thunderstorms may also develop ahead of a frontal boundary atop a
dry boundary layer and receptive fuels. Given the potential for
lightning induced ignitions with these storms, as well as the
potential for ignition exacerbation from erratic thunderstorm wind
gusts, isolated dry thunderstorm highlights have been added.
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U.S. Day 2 Fire Weather Outlook
ZCZC SPCFWDDY2 ALL
FNUS22 KWNS 311840
Day 2 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0140 PM CDT Tue Mar 31 2026
Valid 011200Z - 021200Z
...Afternoon Update...
The Elevated risk area was trimmed to account for expected higher RH
and precipitation chances in the northern TX Panhandle. Strong
southwesterly winds of 20-25 mph (gusts up to 40 mph) combined with
20-25 percent RH atop a dry fuelscape will maintain an Elevated fire
weather concern. However, widespread cloud cover and scattered light
rainfall could dampen fire weather conditions across parts of the
area. East-central and southeastern NM may experience locally
critical fire weather conditions where RH will decrease to 15-20
percent for a couple of hours within a region of 90th percentile
ERCs. See the previous discussion for more information.
..Elizalde-Garcia/Williams.. 03/31/2026
.PREV DISCUSSION... /ISSUED 0213 AM CDT Tue Mar 31 2026/
...Synopsis...
A mid-level trough will eject into the Plains states tomorrow
(Wednesday), resulting in rapid surface low development across the
central Plains. Strong gradient flow will support widespread 20-25
mph sustained westerly surface winds west of a dryline. While
Critical highlights were considered, widespread cloudiness will
dampen boundary-layer mixing to a degree, with RH expected to stay
above Critical thresholds (i.e. 20-25 percent RH). Given the
presence of dry fuels and stronger winds, Elevated highlights have
been introduced.
U.S. Day 3-8 Fire Weather Outlook
ZCZC SPCFWDD38 ALL
FNUS28 KWNS 312202
Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0502 PM CDT Tue Mar 31 2026
Valid 021200Z - 081200Z
...Synopsis...
Amplified upper-level flow will progress from the western U.S. into
the Great Plains initiating a lee-surface low in eastern CO/western
KS on D3/Thursday. The negatively tilted shortwave trough will
traverse the northern High Plains on D4/Friday and shift northeast,
bringing cooler temperatures, much needed rain, and higher elevation
snow to much of the western U.S., with precipitation expanding
eastward east of the Continental Divide through the remainder of the
week. This should reduce broader fire weather concerns across parts
of the High Plains into the Midwest. However, fire weather concerns
will remain for areas that do not see appreciable rainfall on Day
3/Thursday and Day 4/Friday in the central and southern High Plains.
An upper ridge builds back across the western U.S. thereafter,
bringing warm and dry weather through the end of the forecast
period.
...Day 3-4/Thursday-Friday - Southern High Plains and far West
Texas...
Strong westerly mid-level winds and lee surface troughing will
continue to support dry, downslope favored flow across the southern
High Plains for both D3/Thursday and D4/Friday. With the
intensification of a surface low and deepening upper trough, a tight
surface pressure gradient will develop in southeastern CO and
northeastern NM on Day 3/Thursday. 70% Critical fire weather
probabilities have been introduced for this region to account for
south-southwesterly winds of 20-30 mph and RH of 10-20 percent atop
receptive fuels. For Day 4/Friday, 40% probabilities of Critical
have been maintained across the southern High Plains, though will
likely need to be adjusted as confidence increases in the location
and timing of a cold frontal passage in the TX Panhandle. Model
guidance is hinting at a potential downslope wind event in the
northern CO Front Range on Day 4/Friday, but have withheld from
introducing highlights until there is better ensemble member
agreement.
Upper ridging builds back in this weekend across the western U.S.,
persisting through early next week. Given the overall pattern,
locally elevated fire weather conditions may arise as dry conditions
prevail across parts of the central and southern High Plains.
..Elizalde-Garcia/Williams.. 03/31/2026
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