932 FXUS66 KSTO 141003 AFDSTO Area Forecast Discussion National Weather Service Sacramento CA 303 AM PDT Mon Apr 14 2025 .Discussion... .Synopsis... Warm weather with areas of Minor HeatRisk into Tuesday, warmest today. Breezy northerly winds late in the week. Slight chance of showers and thunderstorms over the mountains and foothills each afternoon and evening Tuesday - Thursday. The best potential for thunderstorms is on Wednesday, with locally moderate to heavy rain possible with any storms that form. Light high elevation snow is possible in the Sierra Thursday night into Friday. .Key Messages... * Today: -Above-normal temperatures will continue into Tuesday with Minor HeatRisk in the Valley and foothills. Warmest temperatures expected today. -Probability for today of max temps of 85 degrees F or higher: - 30 to 60% in the N San Joaquin and S Sacramento valleys - 65 to 95% in the central/northern Sacramento Valley * Tuesday - Saturday: -Warm weather continues, briefly cooling to near normal in some areas on Wednesday and Thursday and then warming again late week -15-35% probability for showers and thunderstorms over the Sierra Nevada and southern Cascades Tuesday-Thursday afternoons. Confidence is much lower for the late-week timeframe -25-55% probability >1" of snow Thursday night into Friday for Sierra above 6500 ft I-80 south, highest south Highway 4 -Probability of northerly Wind Gusts > 30 mph late Thursday into Friday: - 50-80% mainly along the western Sacramento Valley -Some uncertainty remains in the pattern headed towards next weekend, though generally looks warm and dry after Friday .Changes from previous forecast... * Increased probability for isolated afternoon mountain thunderstorms this week, best chances on Wednesday, with locally moderate to heavy rain possible * Increased slightly probability for breezy north to east winds on Friday * A dusting to a few inches of snow are possible for the Sierra above 6500 feet Thursday night into Friday, highest south of Highway 4. && .AVIATION... VFR conditions expected over the next 24 hours at TAF sites with winds generally light and less than 12 kts. && .STO WATCHES/WARNINGS/ADVISORIES... None. && $$