Area Forecast Discussion
Issued by NWS Reno, NV
Issued by NWS Reno, NV
903 FXUS65 KREV 100952 AFDREV Area Forecast Discussion National Weather Service Reno NV 252 AM PDT Sun Aug 10 2025 .KEY MESSAGES... * Light haze with occasional pockets of wildfire smoke from fires in California may develop tonight into Sunday morning. * Moderate to major HeatRisk continues through Tuesday, with a chance of triple-digit highs in lower western Nevada valleys and a notable chance of 90s in Sierra valleys Monday. * Isolated thunderstorms possible midweek; increasing winds late week. && .DISCUSSION... Smoke and haze will linger across parts of Alpine, Mono and Douglas counties as westerly breezes loft smoky plumes from fires in California. Fire behavior will dictate how much smoke flows into the region today. Afternoon breezes today should help to mix the smoky conditions out, but could build back during the late evening as winds taper. Persistent ridging over the coastal waters of the northwestern Pacific will migrate closer to the California coast today into early week, bringing about climbing temperatures. Monday and Tuesday the leeside valleys and Basin and Range will likely see 100 degrees or very near 100 degrees. This ridging pattern will undergo a bit of a breakdown Tuesday, when a shortwave starts to make its way toward the Oregon coast. This feature will be the next potential weather- maker for this region. Showers and storms may develop over the Sierra Tuesday evening, but chances are less than 10%. As the shortwave digs south into Wednesday, increasing westerly winds will have our afternoon breezes amplifying and containing gusts up to 35 mph. Winds will still be breezy for Thursday, but only contain gusts around 30 mph. The breezy winds will also usher in a slight cooling trend to close out the week. HRICH && .AVIATION... * Similar to yesterday, smoke and haze may be present for KMMH and KBAN with slantwise visibility reductions possible. Increasing afternoon breezes may help to mix the smoke out. Otherwise, expect VFR conditions across all terminals. Daily afternoon breezes will remain lighter with gusts only reaching 15-20 kts. HRICH && .REV Watches/Warnings/Advisories... NV...None. CA...None. && $$