Juicy Pacific Storms; Cold and Wintry Weather Pattern in the Upper Midwest

Very wet storms will impact California and some surrounding states over the next several days. Heavy rain may cause flash flooding, and mud and debris flows on burn scars. Heavy snow will impact the western mountains, with blizzards in the California mountains. Meanwhile, a series of storms will bring snow, freezing rain, and bitter cold, especially, later this weekend, to the Upper Midwest.
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Last Update: 950 PM PST Tue Jan 15 2019

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24NM SSW San Francisco CA

Marine Zone Forecast

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM PST WEDNESDAY...

Synopsis: PZZ500-161145- 950 PM PST Tue Jan 15 2019 .Synopsis for the Central California Coast and Bays Including the Monterey Bay...Greater Farallones...and Cordell Bank National Marine Sanctuaries... A powerful 965 mb low pressure center located 1300 miles west northwest of the Bay Area will move toward the Pacific Northwest through late week bringing a swath of sub-tropical moisture laden air with heavy rain and wind to the entire forecast area Wednesday into Thursday. A combination of heavy wind, large seas, heavy rain, and scattered thunderstorms will result in similarly hazardous conditions to the mid December 2018 storm. A very large and long period west swell will arrive Thursday morning and last into Friday before subsiding. Mariners are urged to monitor weather forecasts closely this week. $$

Tonight
S winds 5 to 15 kt...increasing to 15 to 25 kt after midnight. Wind waves 3 to 5 ft. W swell 6 to 8 ft at 15 seconds. Chance of showers.
Wed
S winds 15 to 25 kt...becoming southeast 25 to 35 kt in the afternoon. Combined seas 6 to 10 ft dominant period 16 seconds...increasing to 6 to 15 ft dominant period 17 seconds in the afternoon. Chance of rain in the morning, then rain in the afternoon.
Wed Night
S winds 30 to 40 kt. Gusts up to 55 kt in the evening. Combined seas 8 to 17 ft dominant period 18 seconds. Slight chance of thunderstorms in the evening. Rain through the night.
Thu
SW winds 15 to 25 kt. Wind waves 4 to 6 ft. W swell 13 to 16 ft at 19 seconds. Slight chance of thunderstorms in the morning. Showers likely through the day.
Thu Night
W winds 10 to 20 kt. Wind waves 2 to 4 ft. W swell 17 to 20 ft at 17 seconds. Chance of showers in the evening, then slight chance of showers after midnight.
Fri
N winds 10 kt. Wind waves 2 ft or less. W swell 11 to 14 ft. Slight chance of showers.
Sat
SE winds 10 kt. Wind waves 2 ft or less. W swell 6 to 8 ft. Slight chance of showers.
Sun
NW winds 10 to 20 kt. Wind waves 2 to 4 ft. W swell 7 to 9 ft. Chance of showers, then slight chance of showers. .....san francisco bar/fourfathom bank forecast..... in the deep water channel...combined seas 6 to 8 ft at 17 seconds. across the bar...combined seas 7 to 9 ft at 17 seconds. Maximum ebb current of 1.3 knots at 12:01 am wednesday and 2.8 knots at 12:13 pm wednesday.
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Last Update: 950 PM PST Tue Jan 15 2019
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