Area Forecast Discussion
Issued by NWS Sacramento, CA
Issued by NWS Sacramento, CA
925 FXUS66 KSTO 251942 AFDSTO Area Forecast Discussion National Weather Service Sacramento CA 1242 PM PDT Sat Jul 25 2026 .KEY MESSAGES... - Elevated fire weather conditions today and Sunday within the Burney Basin and the northeast foothills due to low relative humidity and breezy southwesterly to westerly winds. - Increasing heat across interior northern California late next week, with Moderate HeatRisk. && .DISCUSSION... Seasonable temperatures continue through early next week, with highs in the 90s across the Valley. Warmest conditions in the northern Sacramento Valley. Winds will be breezy out of the southwest to west, along with onshore flow today and tomorrow. Winds gust up to 25mph out of the southwest to west across the northeast foothills, Burney Basin, and areas in the northern Sacramento Valley towards the higher terrain. Minimum RH values today and tomorrow drop into the teens to potential single digits in the Burney Basin and northeastern Foothills bringing elevated fire weather concerns through tomorrow. The driest conditions will be this afternoon and evening. None the less, we will continue to headline the Elevated Fire Weather Concerns for the Burney Basin and northeastern Foothills through tomorrow due to the low RH combined with the breezy southwesterly to westerly winds. Looking at the synoptic pattern aloft, the ridge of high pressure dominating over central CONUS will start to push back toward the southwestern United States early to mid next week helping to dry conditions out further and increase our temperatures. There is increasing confidence in widespread moderate HeatRisk end of next week and into the first couple days of August, with probabilities of exceeding 100F around 50-70 percent across the Valley. We will be monitoring the heat as we move through the week and determine the need for any heat related products by the end of the week and into the first days of August. We will also be monitoring the low RH values that come along with the heat across the area. && .AVIATION... VFR conditions continue through the TAF period, with breezy surface winds through the afternoon and evening hours. A few gusts to 20kts will be possible for the TAF sites through 04z. Otherwise, winds go light overnight with a few clouds to clear skies. && .STO WATCHES/WARNINGS/ADVISORIES... None. && $$