San Diegans are advised to prepare for a significant shift in weather patterns, as gusty Santa Ana winds are expected to spread across the region through Wednesday, bringing critical fire weather conditions and cooler temperatures. The National Weather Service in San Diego warns of "areas of gusty northeasterly Santa Ana winds" with speeds ranging from 25 to 35 mph punctuated by more powerful gusts reaching up to 55 mph, according to a statement obtained by NWS San Diego. Additionally, gusts could intensify to 90 mph in specific inland locations late Tuesday night.
While the coastal areas witness moderately high temperatures between 64 and 68 degrees today, some inland valleys might only see 57 to 64 degrees highs, as the forecast detailed by NWS San Diego reveals. In the high desert regions, temperatures will range from 48 to 52 degrees, hinting at the cooler days ahead. Amidst this change, humidity levels are expected to drop at around 10 percent, with "poor overnight recovery," thus heightening the area's fire susceptibility.
The risk posed by these conditions has prompted a Red Flag Warning, which is in effect until 6 PM PST Wednesday for several counties, including Orange County Inland Areas and San Bernardino and Riverside County Valleys, as NWS San Diego reports. Residents are encouraged to exercise extreme caution due to the "critical fire weather conditions" expected to persist into Wednesday afternoon. The Fire Weather Watch includes a high alert for the mountains, valleys, and areas near the San Gorgonio Pass.
Accompanying the Santa Ana winds, the areas vulnerable to freezing temperatures will be under a Frost Advisory through Tuesday morning, particularly wind-sheltered locations in the Inland Empire, as the National Weather Service indicates. Looking ahead, the forecast for the latter half of the week predicts "a 75 percent chance for no measurable precipitation for late this week," signaling a potential continuation of drier conditions, along with cooler days on Friday and Saturday, details acquired from NWS San Diego.
Local authorities urge residents to stay informed on the latest weather developments and take necessary precautions to safeguard against the heightened wildfire risk. More detailed and up-to-date information on humidity levels, wind speeds, and temperature forecasts can be found on NWS San Diego's forecast page.
