National Weather Service United States Department of Commerce

Significant threat for flash flooding continues across the southwestern U.S.

Heavy precipitation continues to be forecast for much of the Southwest U.S. this week due to the remnants of weakening Tropical Storm Odile. The heavy rainfall will be concentrated across southern Arizona, southern New Mexico and western Texas where 3 to 6 inches could fall through Friday, with some locales receiving up to 9 inches. Flash Flood Watches remain in effect for much of this area.
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Last Update: 239 PM CDT WED SEP 17 2014

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Lake Michigan from Sheboygan to Port Washington WI 5NM off shore to Mid Lake

Marine Zone Forecast

WAVES ARE PROVIDED AS A RANGE OF SIGNIFICANT WAVE HEIGHTS...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES...ALONG WITH THE AVERAGE HEIGHT OF THE HIGHEST 10 PERCENT OF THE WAVES WHICH WILL OCCASIONALLY BE ENCOUNTERED.

  • SynopsisLOW PRESSURE OF 29.9 INCHES NEAR THE STRAITS OF MACKINAC WILL MOVE EAST THIS EVENING...TRAILING A COLD FRONT WHICH WILL PUSH SOUTH ACROSS LAKE MICHIGAN TONIGHT. HIGH PRESSURE OF 30.2 INCHES WILL SPREAD SOUTHEAST BEHIND THE FRONT ACROSS ONTARIO AND THE NORTHERN LAKES OVERNIGHT AND INTO FAR SOUTHWEST QUEBEC BY LATE THURSDAY BEFORE STRENGTHENING TO 30.4 INCHES AS IT REACHES NEW ENGLAND ON FRIDAY. LOW PRESSURE OF 29.9 INCHES WILL DEVELOP ACROSS THE CANADIAN PRAIRIES AND WILL MOVE ACROSS ONTARIO FRIDAY NIGHT...TRAILING ANOTHER COLD FRONT SOUTH ACROSS LAKE MICHIGAN LATE SATURDAY INTO EARLY EARLY SUNDAY. HIGH PRESSURE OF 30.3 INCHES WILL BUILD INTO THE PLAINS SUNDAY NIGHT.
  • Tonight South winds 5 to 10 kt becoming southwest this evening then veering northeast at 10 to 20 kt toward morning. Waves 1 to 3 ft building to 3 to 5 ft occasionally to 7 ft.
  • Thursday Northeast winds 10 to 20 kt. Waves 4 to 6 ft occasionally to 8 ft.
  • Thursday Night Northeast winds 10 to 15 kt veering to southeast and increasing to 10 to 20 kt after midnight. Waves 2 to 4 ft.
  • Friday South winds increasing to 30 kt. Slight chance of showers and thunderstorms in the afternoon. Waves building to 5 to 8 ft occasionally to 10 ft.
  • Friday Night Southwest winds to 30 kt. Chance of showers and thunderstorms. Waves 5 to 8 ft occasionally to 10 ft.
  • Saturday Southwest winds to 30 kt. Chance of showers and thunderstorms. Waves 4 to 7 ft occasionally to 9 ft.
  • Saturday Night Southwest winds to 30 kt becoming west 15 to 25 kt. Chance of showers and thunderstorms. Waves 4 to 6 ft occasionally to 8 ft.
  • Sunday Northwest winds 15 to 25 kt. Slight chance of showers. Waves 3 to 5 ft occasionally to 7 ft.
  • Monday North winds 15 to 25 kt. Waves 4 to 6 ft occasionally to 8 ft.



Additional Forecasts and Information

Zone Area Forecast for Lake Michigan from Sheboygan to Port Washington WI 5NM off shore to Mid Lake
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