National Weather Service United States Department of Commerce

A stalled frontal boundary and ample monsoonal moisture will lead to flash flood potential from the Great Basin to the Great Plains tonight and Tuesday

A stalled frontal boundary will set up along the southern and central Rockies for the next couple of days providing focus for showers and thunderstorms. In addition, ample monsoonal moisture will stream in across the southwest bringing enough moisture to introduce a flash flood threat from the Great Basin and Southwest eastward across the central and southern Rockies into the adjacent Plains.
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Last Update: 920 PM EDT MON JUL 28 2014

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Cape Cod Bay

Marine Zone Forecast





  • SynopsisA COLD FRONT WILL CROSS THE WATERS LATE TONIGHT AND TUE. THIS COLD FRONT WILL BE SLOW TO MOVE FARTHER OFFSHORE...AND WILL LINGER E OF THE MASSACHUSETTS COAST THROUGH FRI.

    FOR INFORMATION ON POSSIBLE HAZARDOUS WEATHER BEYOND THE 24-36 HOUR FORECAST PERIOD...PLEASE VISIT WWW.WEATHER.GOV/BOSTON AND FOLLOW THE CURRENT HAZARDS LINK ABOVE THE MAP ON THE LEFT.
  • Tonight SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Patchy fog after midnight with vsby 1 to 3 nm.
  • Tue SW winds 10 to 15 kt...diminishing to 5 to 10 kt in the afternoon. Seas around 2 ft.
  • Tue Night SW winds 5 to 10 kt...becoming W after midnight. Seas 1 foot or less.
  • Wed N winds around 5 kt...becoming SE around 5 kt in the afternoon. Seas 1 foot or less.
  • Wed Night SW winds around 5 kt. Seas 1 foot or less.
  • Thu SW winds around 5 kt...becoming S in the afternoon. Seas 1 foot or less.
  • Thu Night S winds 5 to 10 kt...becoming SW after midnight. Seas around 2 ft.
  • Fri S winds around 5 kt. Seas 1 foot or less.
  • Fri Night SE winds around 5 kt. Seas 1 foot or less.
  • Sat E winds around 5 kt. Seas 1 foot or less.
  • Sat Night SE winds around 5 kt. Seas 1 foot or less.

    seas are reported as significant wave height...which is the average of the highest third of the waves. individual wave heights may be more than twice the significant wave height.




SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.

Additional Forecasts and Information

Zone Area Forecast for Cape Cod Bay
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