Additional rounds of thunderstorms are expected Thursday and Thursday night across Oklahoma and north Texas, with risks for both large hail and flash flooding. Strong winds may accompany any storms from east Texas northeast through the lower Great Lakes. Read More >
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632 FXUS66 KMTR 010043 AFDMTR Area Forecast Discussion National Weather Service San Francisco CA 543 PM PDT Wed Apr 30 2025 ...New AVIATION, MARINE... .SYNOPSIS... Issued at 226 PM PDT Wed Apr 30 2025 Another fair weather day across the board today. Quiet conditions remain until the weekend where we can expect dreary conditions along with gusty winds Saturday and Sunday. && .SHORT TERM... (This evening through Thursday) Issued at 226 PM PDT Wed Apr 30 2025 Nothing really doing with the showers in today`s forecast over the North Bay and Gabilan Range. We are seeing some diurnal cumulus develop over the terrain, but as noted yesterday, much of the instability has not been realized. Still can`t rule out a brief shower or two in those areas, but thunder potential is very slim. Otherwise mostly clear day today aside from some areas along the immediate coast where ample moisture has allowed cloud cover to prevail within the marine layer. && .LONG TERM... (Thursday night through next Tuesday) Issued at 226 PM PDT Wed Apr 30 2025 Still fairly quiet between Thursday and Friday, so shifting focus to the weekend. A deep upper low is still on track dig into the NEPac by the weekend and move into SoCal through the weekend. Increased cloudiness Friday afternoon can be expected, along with increasing winds Friday night. Winds increase further on Saturday as a stout 75-80 kt 500 mb jet streak digs south along the West Coast. Behind the cold front we can still expect wind gusts into the 40-50 mph range across some of the high coastal terrain. With the orientation of the jet streak more parallel to the coast, we aren`t expecting a widespread high wind event over land, but some of the coastal areas will still experience gusty conditions. Therefore, have held off on any hazard issuance as of now. Keep up with the latest forecasts for the most up to date information as the timeline moves closer. Winds begin to diminish Sunday evening as the system moves out. && .AVIATION... (00Z TAFS) Issued at 543 PM PDT Wed Apr 30 2025 Coastal stratus and fog /MVFR-IFR/ will continue tonight and Thursday morning, stratus and fog moving inland on onshore breezes. VFR continues far inland. The marine layer depth varies from 1000 feet in the Bay Area to more recently deepened to near 2000 feet north Central Coast. Vicinity of SFO...VFR continues through the evening, MVFR developing by 10z Thursday. VFR late morning Thursday through the afternoon and early evening. Northwest to west wind 10 to 20 knots with a few gusts to 25 knots this evening, diminishing to 5 to 10 knots tonight and Thursday morning, then increasing to 15 knots Thursday afternoon. SFO Bridge Approach...Similar to SFO. Monterey Bay Terminals...Stratus /MVFR-IFR/ moving inland this evening, stratus and fog /IFR/ late tonight and Thursday morning. Mainly onshore winds 5 to 15 knots. && .MARINE... (Tonight through next Monday) Issued at 442 PM PDT Wed Apr 30 2025 Northerly flow will persist over the coastal waters thanks to high pressure over the Eastern Pacific and low pressure inland. Near- gale force gusts will continue over the outer waters through Thursday morning along with rough seas. Strong northwesterly breezes return Friday afternoon and increase further over the weekend with a passing storm system. Rough seas return to the outer waters by Saturday. && .MTR WATCHES/WARNINGS/ADVISORIES... CA...None. PZ...None. && $$ SHORT TERM...Behringer LONG TERM....Behringer AVIATION...Canepa MARINE...MM 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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