Dangerous Heat Building in the West; Severe Storms in the Upper Midwest
A long duration heat wave will build across the Southwest, California, and Pacific Northwest. Dangerous heat is also forecast for the Great Basin and South Plains. Severe storms in the Upper Midwest may have locally heavy rain, damaging winds, and very large hail. Heavy rain and flooding will also be possible in the Deep South and Appalachians.
For More Weather Information:
19NM W San Francisco CA
Marine Point Forecast[NOTICE]
Last Update: 5:54 pm PDT Aug 13, 2020
Forecast Valid: 11pm PDT Aug 13, 2020-6pm PDT Aug 20, 2020
Winds and wind waves higher in and near thunderstorms. .....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...Seas 4 to 6 ft with dominant swell period of 10 seconds. ACROSS THE BAR...Seas 5 to 7 ft with dominate swell period of 10 seconds. Maximum ebb current of 2.2 kt at 12:49 AM Friday and 1.0 kt at 02:01 PM Friday.
- This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
- The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.