Fire Weather Outlook Discussion
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497
FNUS22 KWNS 101854
FWDDY2

Day 2 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0153 PM CDT Thu Sep 10 2026

Valid 111200Z - 121200Z

Only minor adjustments were made to the Day 2/Friday Fire Weather
Outlook based on the latest guidance. The rest of the forecast
remains on track; please see the previous discussion for more
information.

..Elizalde-Garcia.. 09/10/2026

.PREV DISCUSSION... /ISSUED 0102 AM CDT Thu Sep 10 2026/

...Synopsis...
A pronounced prefrontal trough/low develops ahead of a southward
surging cold front across the Northern Plains on D2/Friday while an
upper trough pushes farther southward into the Northwest CONUS.
Enhanced westerly winds and downslope drying amid receptive fuels
will promote elevated fire weather concerns for portions of the
northern Plains Friday.

...Southeastern WY, southwestern South Dakota and northwestern
Nebraska...
Deep layer westerly flow accelerates across the northern High Plains
through D1/Thursday night in response to the southward progressing
mid/upper wave and deepening surface low across SD. The increasing
westerly winds and cloud cover should limit boundary layer
decoupling through D2/Friday morning across portions of the
northern/central High Plains, where RH recoveries of 25% or less are
most likely from given latest probabilistic guidance. West winds of
15-20 mph and afternoon RH reductions in the 10-15% range south of
an advancing cold front will bring elevated fire weather threat to
portions of southeastern WY, southwestern SD and northwestern NE
amid a receptive fuelscape.

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

$$