National Weather Service United States Department of Commerce

Severe weather expected for Upper Midwest on Wednesday

A potent storm system will bring a chance of severe thunderstorms to parts of the Upper Midwest on Wednesday and Wednesday night. Very large hail, damaging wind gusts, tornadoes and heavy rain are possible with these storms.
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Hazardous Weather Conditions

Last Update: 717 PM EDT TUE SEP 2 2014

View Nearby Observations

Coastal Waters East of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary

Marine Zone Forecast





  • SynopsisA COLD FRONT WILL CROSS THE WATERS DURING THE OVERNIGHT HOURS TONIGHT. THE CENTER OF HIGH PRESSURE CROSSES THE WATERS THURSDAY AND MOVES SOUTHEAST OF THE WATERS FRIDAY. A COLD FRONT MOVES TO THE SOUTHERN NEW ENGLAND COAST SATURDAY AND DRIFTS ACROSS THE WATERS SUNDAY.

    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 S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Patchy fog. Isolated showers and tstms. Vsby 1 to 3 nm.
  • Wed W winds 10 to 15 kt with gusts up to 20 kt...diminishing to 5 to 10 kt in the afternoon. Seas 2 to 4 ft. Patchy fog. Vsby 1 to 3 nm.
  • Wed Night NW winds 5 to 10 kt. Seas 2 to 3 ft.
  • Thu W winds around 5 kt...becoming S in the afternoon. Seas around 2 ft.
  • Thu Night SW winds 5 to 10 kt. Seas around 2 ft.
  • Fri SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft.
  • Fri Night SW winds around 15 kt with gusts up to 20 kt. Seas 2 to 4 ft.
  • Sat SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers and tstms. Vsby 1 to 3 nm.
  • Sat Night N winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers and tstms. Vsby 1 to 3 nm.
  • Sun NE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers.
  • Sun Night N winds 5 to 10 kt. Seas 2 to 3 ft.

    winds and seas higher in and near tstms.

    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.




WINDS AND SEAS HIGHER IN AND NEAR TSTMS. 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 Coastal Waters East of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary
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