987
FNUS22 KWNS 131925
FWDDY2

Day 2 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0225 PM CDT Sun Sep 13 2026

Valid 141200Z - 151200Z

...Southwestern Oklahoma into Northwestern Texas...
An upper low and attendant mid-level jet streak moving into the
Northern Plains will promote lee trough development across the
northern/central Plains on Day 2/Monday. The evolving trough will
enhance south-southwest winds across much of the central and
southern Plains. South-southwest winds around 15 mph (locally 20
mph) within a deeply mixed boundary layer (up to 700 mb) amid highs
in the lower 100s are forecast across southwestern OK and northwest
TX. These conditions will align with critically dry fuels to promote
an elevated fire weather concern Monday. Although critically low RH
of 15% or less is not expected, the steady south-southwest wind,
well above normal temperatures and receptive fuels as evidenced by
recent fire activity will still promote a fire weather threat
Monday.

...Central and Eastern Wyoming into portions of the Northern Great
Plains...
Only slight changes were made to the existing Elevated highlights
across Wyoming and portions of the central/northern High Plains
based on latest model guidance consensus. There remains some
forecast uncertainty regarding rainfall distribution through the
D1/Sunday period with changes still possible in fire weather
highlights in future updates.

..Williams.. 09/13/2026

.PREV DISCUSSION... /ISSUED 0200 AM CDT Sun Sep 13 2026/

...Synopsis...
At least Elevated fire-weather conditions are forecast Monday as
strong jet streak associated with an upper-level low progresses from
the Northern Rockies into the Northern Great Plains. Meteorological
conditions will reach well into Critical criteria for wind and RH,
but potential precipitation and a somewhat unfavorable fuelscape
will generally temper the fire-weather concerns.


...Central and Eastern Wyoming into portions of the Northern Great
Plains...
Strong westerly winds of 25-30 MPH are forecast to develop across
southeastern Wyoming into the Nebraska Panhandle, with daytime
relative humidity as low as 10-15%. Though fuels guidance suggests
receptiveness to ignition and spread, a generally low-density
fuelscape and potential precipitation will serve to reduce overall
fire-weather concerns. Further north, winds of 30-35 MPH are
forecast with the postfrontal airmass that will have generally
higher relative humidity above 20% and cooler temperatures. Given
the mentioned uncertainties, the area and magnitude of fire-weather
highlights may change in subsequent updates.

...Please see www.spc.noaa.gov/fire for graphic product...

$$