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FNUS22 KWNS 101942

FWDDY2



Day 2 Fire Weather Outlook  

NWS Storm Prediction Center Norman OK

0242 PM CDT Thu Apr 10 2025



Valid 111200Z - 121200Z



Primary adjustment to forecast across the Northern Plains was a

southward extension of Elevated highlights into portions of

Nebraska. Increasing surface winds are expected from the south in

response to Northern Rockies lee troughing development. These winds

will overlap sufficiently dry fuels within a well mixed boundary

layer, where afternoon relative humidity is expected to drop into

15-20 percent range. This will promote an Elevated fire weather

threat Friday for portions of the Dakotas and Nebraska. Otherwise,

forecast (see below) remains on track across central Florida for

Elevated fire weather conditions.



..Williams/Lyons.. 04/10/2025



.PREV DISCUSSION... /ISSUED 1219 AM CDT Thu Apr 10 2025/



...Synopsis...

A near-stationary mid-level trough will amplify along the East Coast

as upper ridging continues to build over the central U.S. and

another mid-level trough traverses the Pacific Northwest tomorrow

(Friday). Ahead of the approaching Northwest mid-level trough,

surface lee troughing will take place across the central and

northern High Plains, supporting strong southerly flow in the

process. A dry airmass will be transported northward across the

northern High Plains, with 15-25 mph sustained southerly winds

overlapping with 15-25 percent RH tomorrow afternoon. Elevated

highlights have been introduced given dry/windy conditions

overlapping at least marginally to modestly dry fuels.



Meanwhile, a surface cold front is expected to sweep across the

Florida Peninsula tomorrow, with dry/breezy conditions likely in the

post-frontal regime. Winds may sustain over 15 mph for at least a

few hours during the afternoon, as RH dips as low as 20-30 percent

in some areas. Rainfall accumulations have barely exceeded 0.25

inches over the past week for most parts of the central Florida

Peninsula, and given the presence of dry fuels, Elevated highlights

have been introduced.



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



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