Heavy Rains and Catastrophic Flooding Possible in Hawaii

A kona low will continue to bring heavy rain to Hawaii bringing flooding and flash flooding, landslides, road closures, and low visibility with high rainfall rates expected. Lake effect snow is expected downwind from the Great Lakes. Blizzard conditions are expected in the southeast Alaska.
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Last Update: 202 AM PST Tue Dec 7 2021

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24NM SSW San Francisco CA

Marine Zone Forecast


Synopsis: PZZ500-072315- 202 AM PST Tue Dec 7 2021 .Synopsis for the Central California Coast and Bays Including the Monterey Bay...Greater Farallones...and Cordell Bank National Marine Sanctuaries... Breezy northwest winds over the southern waters until early to mid-morning. Winds will become breezy over most of the waters by the afternoon and last through early Wednesday morning. These winds will generate steep wind waves making it hazardous for smaller vessels. Rain is expected through the early morning hours with a slight chance for thunder in our outermost waters. A moderate period northwest swell is forecast to arrive on Wednesday ahead of the next cold front that will increase winds and bring another chance for rain. $$

Today
NW winds 15 to 25 kt. Wind waves 6 to 7 ft. NW swell around 2 ft at 12 seconds. A chance of rain this afternoon.
Tonight
N winds 10 to 15 kt. Wind waves 5 to 6 ft. W swell around 2 ft at 17 seconds. Rain likely.
Tue
N winds 15 to 20 kt with gusts up to 25 kt. Wind waves 5 to 6 ft. W swell around 2 ft at 18 seconds. A slight chance of rain.
Tue Night
NW winds 15 to 20 kt with gusts up to 25 kt. Wind waves 5 to 6 ft. W swell around 2 ft at 16 seconds.
Wed
NW winds 10 to 20 kt with gusts up to 25 kt. Wind waves 5 to 6 ft. W swell around 2 ft at 15 seconds.
Wed Night
NW winds 20 to 30 kt with gusts up to 40 kt. Wind waves 5 to 6 ft. W swell around 2 ft at 14 seconds. A chance of rain.
Thu
NW winds 20 to 30 kt with gusts up to 40 kt. Wind waves 8 to 9 ft. W swell 3 to 5 ft.
Fri
N winds 15 to 20 kt with gusts up to 25 kt. Wind waves 3 to 4 ft. NW swell 6 to 8 ft. .....san francisco bar/fourfathom bank forecast..... in the deep water channel...combined northwest seas 3 to 4 feet at 8 seconds. across the bar...combined northwest seas 4 to 5 ft at 8 seconds. Maximum ebb current of 1.5 kt at 06:37 am tuesday and 4.0 kt at 05:43 pm tuesday.

.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...Combined northwest seas 3 to 4 feet at 8 seconds. ACROSS THE BAR...Combined northwest seas 4 to 5 ft at 8 seconds. Maximum ebb current of 1.5 kt at 06:37 AM Tuesday and 4.0 kt at 05:43 PM Tuesday.
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ABOUT THIS FORECAST

Last Update: 202 AM PST Tue Dec 7 2021
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