Spot Forecast
Issued by NWS San Francisco Bay Area, CA
Issued by NWS San Francisco Bay Area, CA
Versions:
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913 FNUS76 KMTR 250125 FWSMTR Spot Forecast for Department of State Hospitals - Napa Vegetation...Department of State Hospitals - Napa National Weather Service San Francisco CA 525 PM PST Mon Nov 24 2025 Forecast is based on ignition time of 0800 PST on November 25. If conditions become unrepresentative, contact the National Weather Service. .DISCUSSION...Quiet weather is expected this week as high pressure builds across the region. Winds will stay light and offshore through the forecast period with winds gradually transitioning from more southerly on Tuesday to more easterly by Wednesday. Probabilistic guidance indicates gusts greater than 10 mph are not anticipated during the forecast period. Overnight humidity recoveries remain excellent while continuing light offshore flow will result in drier, but still fair, daytime humidity retention. Building high pressure will result in a shallow marine layer (approx. 500 ft) confined directly along the coastline. Note: this spot forecast was modified for a burn date of 11/25/2025 from a burn date of 12/25/2025. Attempted to contact spot submitter twice but did not receive a call back. If you would like a forecast for 12/25/2025 please resubmit closer to that date. If this burn is taking place on a day that is not 11/25/2025 please let us know so we can issue a new forecast. .TUESDAY... Sky/weather.........Sunny. Max temperature.....60-64. Min humidity........68-74 percent. Wind (20 ft)........South winds 5 to 6 mph. CWR.................0 percent. Chance of thunder...0 percent. Mixing height.......1000 ft AGL. Transport winds.....Northeast around 4 mph. Marine layer........None. .TUESDAY NIGHT... Sky/weather.........Partly cloudy. Min temperature.....41-45. Max humidity........87-100 percent. Wind (20 ft)........Northeast winds 5 to 7 mph. CWR.................0 percent. Chance of thunder...0 percent. Mixing height.......0 ft AGL. Transport winds.....Northeast around 5 mph. Marine layer........None. .WEDNESDAY... Sky/weather.........Mostly sunny. Patchy fog in the morning. Max temperature.....60-64. Min humidity........63-69 percent. Wind (20 ft)........East winds 5 to 8 mph. CWR.................0 percent. Chance of thunder...0 percent. Mixing height.......1100 ft AGL. Transport winds.....Northeast around 5 mph. Marine layer........None. $$ Forecaster...R_KENNEDY Requested by...Kevin Brodie Type of request...PRESCRIBED .TAG 2526589.0/MTR .DELDT 11/24/25 .FormatterVersion 2.0.0 .EMAIL kevin.brodie@dsh.ca.gov