Fire Weather Outlook Discussion
Issued by NWS
Issued by NWS
259 FNUS22 KWNS 221754 FWDDY2 Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1253 PM CDT Sat Jun 22 2024 Valid 231200Z - 241200Z The previous forecast generally remains on track with some adjustments needed based on recent trends in guidance. Confidence remains fairly high in the potential for elevated fire weather conditions Sunday afternoon across portions of the greater Pacific Northwest region. Drier/windier solutions continue to hint at the potential for areas of critical fire weather conditions - specifically in the lee of the Warner Mountains along the OR/NV border and within the Snake River Plain. However, ensemble guidance suggests this potential may remain fairly localized. Elevated conditions will likely materialize across parts of western WY as well, but latest fuel guidance indicates fuels are only modestly receptive over this region. ..Moore.. 06/22/2024 .PREV DISCUSSION... /ISSUED 0101 AM CDT Sat Jun 22 2024/ ...Synopsis... An upper-level trough will move through Washington during the afternoon. A strong pressure gradient will develop as a surface low deepens in the northern Rockies into Alberta/Saskatchewan. ...Northwest... Strong westerly surface winds across the Cascades will promote downslope drying into the Columbia Basin during the afternoon. Given some push of marine air to the east, it is possible that RH will not become overly low. However, generally dry fuels and 15-20 mph winds will support an elevated fire weather risk. ...OR/CA/NV... The surface pressure gradient and mid-level winds will be weaker than farther north, but confidence in RH of 10-20% is much higher. Winds could locally approach 20 mph, but will more broadly be around 15 mph. Locally elevated conditions are expected to the lee of the southern Cascades and northern Sierra. ...Snake River Plain... On the fringe of the strong mid-level winds, favorably oriented with the Valley, winds of 15-25 mph appear possible. RH of 15-20% can be expected during the afternoon. Though meteorological conditions could become critical, fuels are not sufficiently dry to support more than an elevated risk. ...Please see www.spc.noaa.gov/fire for graphic product... $$