FNUS21 KWNS 160705
FWDDY1

Day 1 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0204 AM CDT Thu Apr 16 2026

Valid 161200Z - 171200Z

...CRITICAL FIRE WEATHER AREA FOR FOR PORTIONS OF THE CENTRAL AND
SOUTHERN HIGH PLAINS....

...Synopsis...
An upper-level trough will deepen as it moves into the southern
Great Basin/Four Corners today and tonight. As the trough
intensifies, an initially modest subtropical jet will strengthen
across northern Mexico into the southern Plains. At the surface, a
strong low pressure system will deepen across SD as an associated
cold front moves southward into the central Plains. Another
shortwave trough will move over the eastern US bolstering low-level
winds across parts of the Appalachians and Mid Atlantic.

...Central and Southern High Plains...
As upper forcing from the approaching trough spreads over the
Rockies into the plains, the surface low will deepen and move
southeastward with the cold front. This should encourage a broad
area of strong west/southwesterly downslope winds from eastern WY
and SD, into parts of the central Plains. Sustained southwesterly
winds of 15-25 mph (gusts up to 30 mph) amid 10-15 percent RH are
expected atop very dry and receptive fuels, supporting critical fire
weather concerns. Fire-weather conditions will gradually end
overnight from north to south as the front moves south with the
surface low.

Farther south across OK/TX and NM, a surface pressure trough will
encourage gusty westerly low-level flow. Sustained winds of 15-25
mph are likely as the surface low gradually moves southward ahead of
the cold front. Low RH is also expected (10-15%) owing to downslope
trajectories and warm afternoon temperatures. While some areas have
seen rainfall in the past few days, several days of poor humidity
recoveries and gusty winds have allowed for significant drying and a
broad area of critical fuels.

...Central Appalachians and Mid Atlantic...
Strengthening southwesterly flow at the base of the shortwave tough
will encourage strengthening of a lee trough. This will aid gusty
downslope winds of 10-15 mph through the afternoon. Afternoon RH
values will drop to 25-30%. With little recent rainfall and very dry
fuels, several hours of elevated fire-weather conditions appear
likely. More localized fire-weather conditions could extend into
southern and central PA. However, here increased RH and weaker winds
amid areas of recent rainfall should limit broader concerns.

..Lyons.. 04/16/2026

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

$$