


Fire Weather Outlook Discussion
Issued by NWS
Issued by NWS
023 FNUS21 KWNS 030649 FWDDY1 Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0149 AM CDT Wed Sep 03 2025 Valid 031200Z - 041200Z ...Synopsis... A weak upper-level trough will continue to move northward across northern California into the Pacific Northwest on Wednesday. Lift associated with this feature will promote isolated to scattered thunderstorm activity. Thunderstorms will likely be ongoing at the beginning of the period with a second round developing by the afternoon. Overall, a mix of wet/dry thunderstorms is expected across the driest fuels in northern California, far western Nevada, and central Oregon. While locally higher totals will be possible in the strongest storms, ensemble guidance generally shows < 0.10" across much of this region. New lightning starts were reported on Tuesday in these areas, with rainfall amounts 0.10-0.25". An isolated dry thunderstorm area was maintained with this outlook to support this potential. ..Thornton.. 09/03/2025 ...Please see www.spc.noaa.gov/fire for graphic product... $$