National Weather Service United States Department of Commerce

Cold Front Crossing the Central U.S.

A cold front over the Northern Rockies will move eastward to the Upper Mississippi Valley/Central Plains by Monday. Rain will develop along the boundary over the Upper Midwest and move into the Upper Great Lakes by Monday. Some of the thunderstorms could become severe in portions of Texas through Monday.
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Last Update: 221 PM PDT SAT APR 19 2014

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San Francisco Bay South of the Bay Bridge

Marine Zone Forecast





  • SynopsisNORTHWESTERLY WINDS WILL GRADUALLY DIMINISH AS HIGH PRESSURE OVER NORTHERNMOST CA WEAKENS. LARGE NORTHWEST SWELL WILL MAKE ITS WAY TO THE COAST SUNDAY MORNING PERSISTING INTO EARLY NEXT WEEK.
  • Tonight W winds 10 to 20 kt...decreasing to 10 kt after midnight.
  • Sun S winds 5 kt...becoming W in the afternoon.
  • Sun Night W winds 5 to 15 kt...decreasing to 5 kt after midnight.
  • Mon W winds 10 kt.
  • Mon Night W winds 5 to 15 kt. Slight chance of showers in the evening...then chance of showers after midnight.
  • Tue W winds 5 to 15 kt. Slight chance of showers.
  • Wed W winds 5 to 15 kt.
  • Thu W winds 10 kt.



Additional Forecasts and Information

Zone Area Forecast for San Francisco Bay South of the Bay Bridge