Active weather from Northern Rockies to Upper Midwest

A storm system in the northern U.S. will bring a variety of weather across several states from the Northern Rockies to the Upper Midwest on Saturday. Several inches of early-season snow are forecast in the higher elevations of Idaho and western Montana. Locally-heavy rain will accompany strong thunderstorms in the northern Plains and Upper Midwest.
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Last Update: 300 AM PDT SAT SEP 5 2015

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23NM SSW San Francisco CA

Marine Zone Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

Synopsis: HIGH PRESSURE OVER THE EASTERN PACIFIC AND NORTHERNMOST CALIFORNIA WILL KEEP GUSTY NORTHWEST WINDS GOING OVER THE COASTAL WATERS THROUGH TONIGHT. A LONG PERIOD SOUTHERLY SWELL WILL MOVE INTO THE COASTAL WATERS OVER THE WEEKEND RESULTING IN HAZARDOUS CONDITIONS ALONGSHORE.

Today
NW winds 15 to 25 kt. Wind waves 3 to 5 ft. Mixed swell NW 4 to 6 ft at 8 seconds and SW 3 to 4 ft at 20 seconds.
Tonight
NW winds 10 to 20 kt. Wind waves 2 to 4 ft. Mixed swell NW 3 to 5 ft at 8 seconds and SW 3 to 5 ft at 20 seconds.
Sun
W winds 10 kt. Wind waves 2 ft or less. mixed swell NW 3 to 5 ft at 9 seconds and SW 3 to 5 ft at 19 seconds.
Sun Night
W winds 10 kt. Wind waves 2 ft or less. Mixed swell NW 3 to 5 ft at 9 seconds and SW 3 to 5 ft at 19 seconds.
Labor Day
W winds 10 kt. Wind waves 2 ft or less...becoming 3 ft. Mixed swell NW 3 to 5 ft at 8 seconds and SW 3 to 5 ft at 18 seconds.
Tue
W winds 10 kt. Wind waves 2 ft or less. NW swell 2 to 4 ft. SW swell 3 to 5 ft.
Wed
W winds 10 kt. Wind waves 2 ft or less. Mixed swell NW 2 to 3 ft and SW 3 ft. .....san francisco bar/fourfathom bank forecast..... in the deep water channel...combined seas 4 to 6 feet with a dominant period of 12 seconds. across the bar...combined seas 5 to 7 feet with a dominant period of 12 seconds. Maximum ebb current of 1.1 knots at 10:08 am saturday and 1.9 knots at 09:43 pm saturday.

.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...COMBINED SEAS 4 TO 6 FEET WITH A DOMINANT PERIOD OF 12 SECONDS. ACROSS THE BAR...COMBINED SEAS 5 TO 7 FEET WITH A DOMINANT PERIOD OF 12 SECONDS. MAXIMUM EBB CURRENT OF 1.1 KNOTS AT 10:08 AM SATURDAY AND 1.9 KNOTS AT 09:43 PM SATURDAY.
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ABOUT THIS FORECAST

Last Update: 300 AM PDT SAT SEP 5 2015
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