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U.S. Day 1 Fire Weather Outlook
ZCZC SPCFWDDY1 ALL
FNUS21 KWNS 230718
Day 1 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0118 AM CST Tue Dec 23 2025
Valid 231200Z - 241200Z
...NO CRITICAL AREAS...
...Synopsis...
Upper ridging will remain in place east of the Rockies while a
highly amplified mid-level trough impinges on the West Coast today.
Surface lee troughing will encourage moisture return across the
Plains states, with relatively drier air meandering along the
immediate lee of the Rockies. Surface winds along the southern into
central High Plains will be relatively weak on a large-scale basis
though, with wildfire-spread concerns remaining localized at best.
..Squitieri.. 12/23/2025
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U.S. Day 2 Fire Weather Outlook
ZCZC SPCFWDDY2 ALL
FNUS22 KWNS 230718
Day 2 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0118 AM CST Tue Dec 23 2025
Valid 241200Z - 251200Z
...Synopsis...
A mid-level ridge will persist across the central U.S., with a
highly amplified mid-level trough poised to gradually drift eastward
across the Interior West tomorrow (Wednesday). Lee troughing across
the High Plains will intensify through the day, promoting a modestly
stronger surface wind field across the southern High Plains compared
to Day 1. 15 mph sustained westerly surface winds will coincide with
15-20 percent RH during the afternoon across northeast New Mexico
into the Texas Panhandle and far southwestern Kansas. Given dry
fuels over this region, Elevated highlights have been introduced.
..Squitieri.. 12/23/2025
U.S. Day 3-8 Fire Weather Outlook
ZCZC SPCFWDD38 ALL
FNUS28 KWNS 222147
Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0347 PM CST Mon Dec 22 2025
Valid 241200Z - 301200Z
...Synopsis...
An upper-level ridge over the central U.S. should begin to deamplify
through the end of the week as an mid/upper trough gradually moves
into Intermountain West. Well above normal temperatures under the
ridge will likely be daily occurrences with minimal precipitation
expected, particularly across the southern Great Plains where
expanding rainfall deficits, dry fuels and dry and breezy conditions
could align to support an increased fire weather threat. A
descending upper-level trough into the Northeast along with a
deepening surface cyclone should drive a strong cold front through
the Great Plains and eastern U.S. over the weekend. Precipitation
should be limited to the TN Valley/Appalachians region where deeper
boundary layer moisture and stronger upper-level support exists. A
more diffuse surface pressure gradient and generally lighter wind
regime emerges as high pressure settles in east of the Continental
Divide early next week although initial dry post-frontal flow could
reinvigorate a fire weather threat across the southern Plains and TX
early next week.
...Day 3-5/Wednesday-Friday - Southern Plains...
Lee troughing across the Central Plains and persistent southwesterly
flow aloft will promote dry and breezy conditions across the OK/TX
Panhandle and northeastern NM on Day 3/Wednesday. Deeper return flow
moisture from the Gulf will limit fire weather concerns to the
southern High Plains Wednesday. A breakdown in the upper-level ridge
across the central U.S. along with increasing west-southwest flow
aloft will continue to support breezy conditions across the southern
High Plains Thursday. A plume of Pacific moisture and mid/upper
cloud cover associated with an impinging western U.S. trough should
arrive Day 4/Thursday across the Southern High Plains. Additional
cloud cover, increasing surface dewpoints and limited RH reductions
could limit the fire weather threat to an extent, but near record
warmth along with an increasingly dry fuelscape and breezy
west-southwest winds supports introduction of 40% critical
probabilities for Thursday for portions of the TX Panhandle and far
eastern NM. Increasing west/southwest flow aloft from a mid-level
jet and continued lee troughing should keep a dry downslope regime
across the southern Plains through Day 5/Friday. A better boundary
layer mixing environment with less cloud cover and persistently warm
temperatures should support low daytime RH across the Southern
Plains Friday. A 40% critical probability area was added to cover
this likely fire weather concern across far eastern NM and portions
of the TX Panhandle.
...Days 6-8/Saturday-Monday...
Some forecast uncertainty remains in the timing and intensity of
pre/post-frontal winds across the central and southern Plains over
the weekend. This could present ongoing fire weather threats across
the south-central CONUS and even the Southeast where minimal
rainfall and above normal temperatures allow more receptive fuels to
develop through early next week. Critical probabilities were
withheld due to ongoing uncertainty and longer term ensemble
guidance.
..Williams.. 12/22/2025
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