Fire Weather Outlook Discussion
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004
FNUS22 KWNS 010621
FWDDY2

Day 2 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0120 AM CDT Tue Jul 01 2025

Valid 021200Z - 031200Z

...Synopsis...
A mid-level trough slowly progressing across portions of central
California will continue to provide southerly transport of monsoon
moisture into portions of the Great Basin on Wednesday, while a
shortwave trough located further north over British Columbia will
provide support for dry/windy conditions across northern Oregon into
southern Washington.

...Dry/Windy...
Modest mid-level westerly/southwesterly flow, coupled with deep
mixing of dry boundary layer profiles, will support at least
Elevated fire-weather conditions across portions of northern Oregon
into southern Washington. The strongest winds will be confined to
portions of the Cascade gaps/Columbia Gorge, with ERCs across the
region nearing or meeting the annual 90th percentiles.

...Dry Thunderstorms...
A mix of wet and dry thunderstorms will be possible from
east-central Nevada into western Utah, and portions of far southeast
Idaho into far western Wyoming. Fuels across significant portions of
the Great Basin exceed the 98th annual percentiles, and a
combination of low to modest total precipitable water vapor content
and 0 - 6 km mean wind speeds ranging from 15 - 25 MPH will result
in low precipitation efficiency with thunderstorm updrafts. This
will support potential lightning ignitions, particularly with fast
moving cells and on the edges of the most intense downdraft cores.

..Halbert.. 07/01/2025

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

$$