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FNUS21 KWNS 100655

FWDDY1



Day 1 Fire Weather Outlook  

NWS Storm Prediction Center Norman OK

0154 AM CDT Fri Apr 10 2026



Valid 101200Z - 111200Z



...Synopsis...

Upper-level ridging will shift eastward today from the eastern Great

Basin into the Great Plains as longwave upper troughing shifts

across the northern Great Lakes region and the Northeast. Meanwhile,

a mid-level shortwave trough will progress northeastward across

California and the western Great Basin while another upper trough

approaches the California coastline behind it. A slow moving cold

front will progress south-southeastward across the Northeast, Ohio

River Valley, and central Great Plains, with surface high pressure

positioned across the Southeast and Great Lakes regions.



...Portions of the Great Basin...

Surface low pressure across the northern Great Basin in conjunction

with high pressure across the Great Lakes/Southeast will promote a

tightened pressure gradient and resultant sustained southerly

surface winds of 15-25 mph across much of the eastern/southern Great

Basin today. Despite increasing mid/high cloud cover, minimum RH

values of 15-20% (locally down to 10%) are forecast during peak

mixing this afternoon. With preconditioned, drying fuels from

Thursday, this combination of winds/RH is expected to support

elevated fire weather concerns today across portions of eastern Utah

into northwestern Colorado. Locally critical conditions may be

possible should stronger surface winds overlap with locally lower RH

values, but these conditions are expected to remain brief should

they materialize. Deep boundary layer mixing and modestly strong

mid-level flow (25-35 kts within the 700-500 mb layer) will also

support the potential for periodic gusts up to 30-35 mph across the

region.



...Portions of the mid/upper Ohio River Valley...

Ahead of an approaching cold front, west-southwesterly sustained

winds of 10 mph (with occasional gusts of 15-20 mph) combined with

RH values dropping to 30-35% are expected to overlap a region of

drying and potentially receptive fuels from northeastern

Kentucky/southern Ohio into northeastern West Virginia and

southeastern Pennsylvania. With ERCs across this region approaching

the 97th percentile, this overlap of winds/RH may support a few

hours of locally elevated fire weather concerns this afternoon. A

passing cold front will bring a shift to northerly winds, increasing

moisture, and decreasing winds speeds later this evening, which

should provide some relief to the fire environment. Coupled with low

confidence in widespread sustained winds exceeding 15 mph during the

afternoon, Elevated highlights have been withheld at this time.



..Chalmers.. 04/10/2026



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



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