####018002236#### FNUS21 KWNS 231700 FWDDY1 Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1100 AM CST Thu Jan 23 2025 Valid 231700Z - 241200Z ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF SOUTHERN CALIFORNIA... A minor expansion was made to the Critical highlights in Los Angeles County, based on the latest observations and high-resolution guidance. As of 15Z, the LAX-DAG pressure gradient was at -8.6 mb (critical conditions typically associated with -5 mb or less), and this offshore gradient will likely remain at peak values for the next couple hours. The latest surface observations show widespread critical conditions across southern CA, with gusts upwards of 60-75 mph and single-digit RH over the wind-prone mountains. These localized extremely critical conditions will persist through this afternoon before gradually subsiding into tonight. Elsewhere across the lower elevations, 20-30 mph sustained east-northeasterly surface winds (with 30-40 mph gusts) and single-digit RH will also continue through at least this afternoon, resulting in high-end critical conditions. ..Weinman.. 01/23/2025 .PREV DISCUSSION... /ISSUED 0143 AM CST Thu Jan 23 2025/ ...Synopsis... A mid-level trough will eject into the southern Plains today, with a strong surface pressure gradient persisting over southern California for the first half of the period before gradually relaxing. From the start of the period into at least mid-afternoon, strong and dry offshore flow will continue to support dangerous, rapid wildfire-spread potential. Sustained wind speeds well exceeding 20 mph amid 10 percent RH should be common around the Los Angeles metropolitan area southeast to the Laguna Mountain range. However, terrain-favoring areas (especially at higher elevations) may see winds sustain over 50 mph for at least brief periods of time, perhaps with gusts reaching 70 mph, as RH drops to single-digits. Given very dry fuels, at least localized and brief Extremely Critical conditions should be expected, with high-end Critical conditions more likely on a widespread basis. ...Please see www.spc.noaa.gov/fire for graphic product... $$