National Weather Service United States Department of Commerce

Flash flooding possible for parts of Upper Midwest

A slow-moving weather system progressing from the northern Plains to the Great Lakes will bring excessive rainfall and a risk of flash flooding to portions of the Upper Midwest on Friday. The heaviest rainfall is expected from central Iowa northeastward across southeastern Minn. and into Wisc. Rainfall totals of 1-2 inches, with locally-higher amounts, are possible through Saturday morning.
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Last Update: 502 AM CHST SAT AUG 30 2014

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Guam Coastal Waters

Marine Zone Forecast





  • SynopsisLIGHT TO GENTLE WINDS ARE EXPECTED THE NEXT FEW DAYS. COMBINED SEAS OF 3 TO 5 FEET TODAY WILL DIMINISH TO BETWEEN 2 AND 4 FEET TONIGHT. A SURFACE TROUGH MOVING ACROSS THE AREA WILL CAUSE A FEW SHOWERS AND THUNDERSTORMS AT TIMES THIS WEEKEND.
  • Today East wind 5 to 10 kt. Wind waves 2 ft or less. East swell 3 to 5 ft. Scattered showers in the morning. Isolated thunderstorms through the day.
  • Tonight East wind 10 kt. Wind waves 2 ft or less. East swell 2 to 4 ft. Isolated thunderstorms.
  • Sunday And Sunday Night Southeast wind 5 kt. Wind waves 2 ft or less. East swell 2 to 4 ft. Isolated thunderstorms.
  • Monday Through Wednesday Southwest wind 5 to 10 kt. Wind waves 2 ft or less. East swell 2 to 4 ft.



Additional Forecasts and Information

Zone Area Forecast for Guam Coastal Waters
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