Severe thunderstorms possible from the central Plains to the upper Midwest

Severe thunderstorms containing damaging winds, large hail, heavy rainfall, and a few isolated tornadoes will be possible this afternoon into tonight from the central Plains to the upper Midwest. The threat is expected to shift east into the Great Lakes region by Friday. In addition, heavy rainfall could cause localized flooding concerns.
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Last Update: 157 AM PDT Wed Jun 28 2017

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13NM WNW San Francisco CA

Marine Zone Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH

Synopsis: PZZ500-281615- 157 AM PDT Wed Jun 28 2017 .Synopsis for the Central California Coast and Bays Including the Monterey Bay...Greater Farallones...and Cordell Bank National Marine Sanctuaries... Moderate to locally strong northerly winds will prevail along the Central Coast as high pressure builds off the coast. Gusty winds will result in hazardous conditions with steep wind waves and fresh swell. $$

Today
W winds 10 to 20 kt...increasing to 15 to 25 kt in the afternoon. Wind waves 2 to 4 ft. NW swell 2 to 3 ft at 9 seconds. Patchy fog in the morning.
Tonight
NW winds 15 to 25 kt. Wind waves 3 to 5 ft. NW swell 4 to 6 ft at 9 seconds. Patchy fog after midnight.
Thu
NW winds 10 to 20 kt. Wind waves 2 to 4 ft. NW swell 4 to 6 ft at 10 seconds. Patchy fog in the morning.
Thu Night
NW winds 15 to 25 kt. Wind waves 3 to 5 ft. NW swell 7 to 9 ft at 10 seconds. Patchy fog after midnight.
Fri
NW winds 20 to 30 kt. Wind waves 3 to 5 ft. NW swell 7 to 9 ft at 10 seconds. Patchy fog.
Sat
NW winds 20 to 30 kt. Wind waves 4 to 6 ft. NW swell 6 to 8 ft. Patchy fog.
Sun
W winds 15 to 25 kt. Wind waves 3 to 5 ft. NW swell 6 to 8 ft. Patchy fog. .....san francisco bar/fourfathom bank forecast..... in the deep water channel...combined seas 2 to 4 ft with a dominant swell period of 13 seconds. across the bar...combined seas 3 to 5 ft with a dominant swell period of 13 seconds. Maximum ebb current of 1.7 knots at 06:12 am wednesday and 1 knots at 08:00 pm wednesday.
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ABOUT THIS FORECAST

Last Update: 157 AM PDT Wed Jun 28 2017
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