Day 2 Fire Weather Outlook  
NWS Storm Prediction Center Norman OK
0230 PM CDT Tue Jun 17 2025

Valid 181200Z - 191200Z

Accelerating mid-level westerly flow in advance of an upper-level
short wave will support breezy downslope flow across the Columbia
Basin. Despite a slight intrusion of Pacific moisture, daytime
relative humidity should still fall into the 20-25 percent range.
Coupled with breezy west winds and dry fuels, Elevated highlights
were maintained for the Columbia Basin where dry fuels will support
fire spread.

..Williams.. 06/17/2025

.PREV DISCUSSION... /ISSUED 1257 AM CDT Tue Jun 17 2025/

...Synopsis...
Preceding a deep midlevel low west of British Columbia, a belt of
strong midlevel westerly flow will overspread the Cascades. As a
result, locally dry/breezy downslope flow will develop in the
Columbia Basin during the afternoon. Around 15 mph sustained
westerly surface winds (higher in the Cascade Gaps) and 20-25
percent RH will favor elevated fire-weather conditions.

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