Showers and thunderstorms are expected from Texas to the Northeast through Tuesday. Heavy rain will create mainly localized areas of flash flooding across the central Gulf Coast into the Appalachians. Elevated to Critical fire weather conditions due to gusty winds and low humidity are expected through Tuesday across Oregon and Nevada. Showers and thunderstorms will develop over the Northwest. Read More >
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121 FXUS66 KMTR 242328 AFDMTR Area Forecast Discussion National Weather Service San Francisco CA 428 PM PDT Sun May 24 2026 ...New AVIATION, MARINE... .KEY MESSAGES... Issued at 1107 AM PDT Sun May 24 2026 - Cool temperatures through Memorial Day Weekend and into the work week - Breezy, drizzly, and cool Tuesday ahead of warming and drying conditions for the rest of the forecast. && .SHORT TERM... Issued at 1107 AM PDT Sun May 24 2026 (This afternoon through Monday) A strong marine layer and good onshore flow lead to another morning of cloudy conditions for most of the area. The influence of a large eddy off the coast of Sonoma Co may complicate clearing times, otherwise a similar set up as yesterday. Highs today will range from the 50s along the coast, 60s for areas more inland, the low to 70s for the more interior areas, and only a few spots in the far interior breaking 80 degrees today. The deep and expanded marine layer continues to keep humidities high for much of the area. This will really come into play overnight, keeping most of the overnight lows in the 50s and upper 40s, with only the far interior falling into the mid 40s. The marine layer looks to deepen slightly into the night and will call for a stronger inland overnight and into Memorial Day, leading to widespread cloud cover and fair chances for drizzle. This will also cause slower clearing for the interior, and the potential for little to no clearing along the coast. Expect cool coastal conditions under cloudy skies with highs in the 50s. Then the areas slightly inland will hover around the mid to lower 60s, and the far interior will be in the 70s with possibly one or two spots breaking 80 degrees. && .LONG TERM... Issued at 1107 AM PDT Sun May 24 2026 (Monday night through next Saturday) A cold front will pass through the area early Tuesday with a low pressure following close behind. This will cause most of the region to see the coolest high temperatures of the forecast. The rush of even cooler air meeting with the already moist environment of the marine layer will cause good chances for drizzle across much of the Bay Area and Central Coast. Winds will be breezy and gusty across much of the CWA during this pattern change, with the higher elevations and favored gaps and passes seeing chances for gusts peaking around 45 mph. The national blend of models shows the front exiting the North Bay early enough in day and northerly dry winds around the low for some slight and isolated warming compared to previous days, while the rest of the region remains cool. From there, the models are in fair agreement over another warming and drying trend as a modest offshore flow develops as the low travels to the east. Temperatures see a notable rebound for Wednesday as skies remain on the clearer side, with temperatures steadily warming into the next weekend. && .AVIATION... (00Z TAFS) Issued at 414 PM PDT Sun May 24 2026 The last of MVFR cigs lifted by mid-afternoon with VFR expected through the remainder of the afternoon and early evening. MVFR gigs will return after sunset with a robust marine layer and steady onshore flow. The stratus should lift with similar timing on Monday, that we saw this afternoon. Vicinity of SFO...Expect MVFR cigs to develop in the hours surrounding midnight tonight and persist through the morning with signs of lifting to VFR around noon Monday. Steady onshore flow through the TAF period with gusty winds developing into Monday evening out ahead of an approaching cold front. SFO Bridge Approach...Similar as SFO. Monterey Bay Terminals...VFR until MVFR cigs develop after sunset with similar clearing times Monday afternoon that we saw Sunday afternoon. Steady onshore flow with an approaching cold front Monday afternoon will result in breezy westerly winds Monday afternoon. && .MARINE... (Tonight through next Friday) Issued at 414 PM PDT Sun May 24 2026 Light southwest to west winds strengthen in to gusty northwest winds beginning Tuesday. Strong northwesterly winds will result in building rough seas for the second half of this week. && .MTR WATCHES/WARNINGS/ADVISORIES... CA...None. PZ...Small Craft Advisory from 9 AM to 3 PM PDT Tuesday for Mry Bay- Pigeon Pt to Pt Pinos 0-10 nm-Pigeon Pt to Pt Pinos 10-60 NM. Small Craft Advisory from 3 AM to 3 PM PDT Tuesday for Pt Arena to Pt Reyes 0-10 nm-Pt Arena to Pt Reyes 10-60 NM-Pt Pinos to Pt Piedras Blancas 0-10 nm-Pt Reyes to Pigeon Pt 0-10 nm. && $$ SHORT TERM...Murdock LONG TERM....Murdock AVIATION...JM MARINE...Canepa Visit us at www.weather.gov/sanfrancisco Follow us on Facebook, X, and YouTube at: www.facebook.com/nwsbayarea x.com/nwsbayarea www.youtube.com/nwsbayarea |
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