####018001468####
FNUS21 KWNS 110648

FWDDY1



Day 1 Fire Weather Outlook  

NWS Storm Prediction Center Norman OK

0147 AM CDT Sun May 11 2025



Valid 111200Z - 121200Z



...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF THE CENTRAL AND

NORTHERN PLAINS....



...Synopsis...

Mid-level ridging over the Rockies will begin to move eastward as a

trough and strong southwesterly flow aloft move over the West. A lee

low will aid strong southerly winds over much of the Great Plains

and Midwest, while a cutoff low meanders along the Gulf Coast. The

dry southerly winds ahead of returning surface moisture will support

dry and windy conditions over areas with little recent

precipitation. Several hours of critical fire-weather conditions are

likely over the Plains today and tonight.



...Plains and Upper Midwest...

East of the deepening lee trough/cyclone, strong southerly winds are

likely across much of the central/northern Plains and upper Midwest.

As flow aloft form the advancing upper trough overspreads the

region, diurnal mixing will support widespread winds of 20-30 mph.

Afternoon RH values will fall to 20-25%, supporting several hours of

dry and windy conditions. As area fuels have continued to dry with

little recent rainfall (ERCs in the 80th percentiles), critical

fire-weather conditions appear likely today into tonight.



..Lyons.. 05/11/2025



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



$$

####018001766####
FNUS22 KWNS 110649

FWDDY2



Day 2 Fire Weather Outlook  

NWS Storm Prediction Center Norman OK

0149 AM CDT Sun May 11 2025



Valid 121200Z - 131200Z



...Synopsis...

The partially blocked upper-air pattern over the US will begin to

breakdown early in the new week as a trough deepens over the western

US. Strong mid-level flow will gradually move into the Plains, as

upper ridging moves eastward. Strong lee troughing/cyclogensisis

will support gusty south/westerly winds over the High Plains.

Fire-weather conditions are expected across the Great Plains and

Southwest Monday afternoon and evening.



...Northern Plains and Midwest...

Strong southerly low-level flow will continue Monday as the upper

trough ejects eastward and the surface low deepens over MT and the

western Dakotas. Surface winds of 25-30 mph are again expected

across much of MT, the Dakotas and into parts of NE/MN/IA. However,

RH values should begin to increase as low-level moisture is advected

northward and mid-level cloud cover reduces solar heating. While

still relatively dry below 30%, RH values do not appear critical.

This will favor widespread elevated and pockets of locally critical

conditions Monday afternoon.



...Southwest...

As the troughing over the west gradually deepens, strong mid-level

flow will begin to move eastward over the southern Rockies and

Southwest. Westerly downslope flow is likely across parts of eastern

AZ and western NM Monday. With gusts of 15-20 mph and RH below 15%,

several hours of elevated fire-weather conditions are likely within

dry fuels that have supported recent fire activity.



..Lyons.. 05/11/2025



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



$$