655 

FNUS21 KWNS 081640

FWDDY1



Day 1 Fire Weather Outlook  

NWS Storm Prediction Center Norman OK

1140 AM CDT Wed Jul 08 2026



Valid 081700Z - 091200Z



...Morning Update...

No changes were made to the ongoing forecast. A dry cold front has

moved into northwestern Washington as of 12z this morning, and is

expected to continue eastward to reach southeastern Oregon by this

evening. Latest high resolution guidance depicts RH values will

decline to 12-20% (locally lower) and gusty winds will increase to

20-30 mph (up to 35 mph or greater in terrain-favored areas),

overspreading the Columbia Basin and eastern Oregon behind the

front. These weather conditions amid 80-95th percentile ERCs

maintain widespread elevated and locally critical fire concerns this

afternoon. After several consecutive days of mixed wet/dry

thunderstorms, some relief to the fire environment has been observed

across the West Slope in the form of better RH recoveries (as

compared to the last 7 days). However, such relief is short-lived,

as RH values are expected to decline to 15-20% this afternoon in far

western CO with residual mid-level moisture and daytime instability

encouraging mixed wet/dry thunderstorms to develop once again. See

the previous discussion for more information.



..Elizalde-Garcia.. 07/08/2026



.PREV DISCUSSION... /ISSUED 1245 AM CDT Wed Jul 08 2026/



...Synopsis...

An upper-level trough will move into southwest Canada, and an

upper-level high will slowly shift southwest off the southern

California coast. Between these two features, west-southwest flow

aloft will spread over the West, with embedded weak disturbances

rotating through. A dry Pacific cold front will push through the

Northwest and into the northwest Great Basin and northern Rockies as

a thermal trough extends from the Gulf of California into the

central Great Basin. 



As the cold front moves through the Northwest, west-northwest

sustained winds of 12-20 mph with gusts of 20-30 mph are likely amid

minimum RH of 12-25% across much of the Inland Northwest. Ahead of

the front, a dry airmass remains with minimum RH of 5-15% expected.

West-southwest sustained winds of 12-20 mph and gusts of 20-30 mph

are likely to overlap this dry airmass across much of the Great

Basin and into southeast California, northern Arizona, and far

western Colorado.



Isolated to scattered mixed wet/dry thunderstorms are likely across

the northern Great Basin into the Four Corners. While pockets of

wetting rain have been observed across the IsoDryT area, fuels

remain receptive, including near to record dry fuels in portions of

Utah and Colorado. Some consideration was given to removing the

IsoDryT along the Nevada/Idaho/Utah borders due to potential wetting

rain. Ensemble forecast guidance indicates a 50-80% chance of

rainfall exceeding 0.1", but less than a 25% chance to exceed 0.25".

Additionally, due to expected thunderstorm development in the early

to mid-afternoon and scattered coverage of storms, portions of

southern Idaho, northeast Nevada, and northern Utah may not hit

elevated criteria for wind/RH.



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



$$