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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7NM NE Chicago IL

Marine Point Forecast [NOTICE]

Overnight

Mostly Clear

Light Wind
< 1ft

Low: 66 °F
Water: 54 °F

Wednesday

Sunny

SSE 10kt
< 1ft

High: 83 °F

Wednesday
Night

Chance Thunderstorms

S 15kt
< 1ft

Low: 72 °F

Thursday

Slight Chc Thunderstorms

S 20kt
1ft

High: 86 °F

Thursday
Night

Slight Chc Thunderstorms

SSW 15kt
< 1ft

Low: 75 °F

Friday

Chance Thunderstorms

N 15kt
1-2ft

High: 78 °F

Friday
Night

Slight Chc Showers

NNE 15kt
2-3ft

Low: 63 °F

Saturday

Mostly Sunny

NNE 10kt
3-4ft

High: 70 °F

Saturday
Night

Mostly Clear

N 10kt
2-3ft

Low: 60 °F

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 11:02 pm CDT Sep 2, 2014
Forecast Valid: 12am CDT Sep 3, 2014-6pm CDT Sep 9, 2014

View Nearby Observations

Detailed 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.

  • Overnight Variable winds 5 kt or less. Mostly clear. Waves 1 ft or less.
  • Wednesday WSW wind 5 to 10 kt becoming SSE in the afternoon. Sunny. Waves 1 ft or less.
  • Wednesday Night S wind 10 to 15 kt. A chance of showers and thunderstorms after 1am. Waves 1 ft or less.
  • Thursday S wind 15 to 20 kt. A slight chance of showers and thunderstorms before 1pm. Waves around 1 ft.
  • Thursday Night SSW wind 10 to 15 kt, with gusts as high as 25 kt. A slight chance of showers and thunderstorms after 1am. Waves 1 ft or less.
  • Friday WSW wind 10 to 15 kt becoming NNE in the afternoon. A chance of showers and thunderstorms. Waves 1 to 2 ft.
  • Friday Night NNE wind 10 to 15 kt. A slight chance of showers. Waves 2 to 3 ft.
  • Saturday NNE wind around 10 kt. Mostly sunny. Waves 3 to 4 ft.
  • Saturday Night N wind around 10 kt. Mostly clear. Waves 2 to 3 ft.
*Notices:
  1. This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
  2. The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.