Dangerous Heat and Humidity Building from the Plains to the East Coast

A strengthening ridge of high pressure will produce much above average temperatures from the Plains to the East Coast, a true summer heat wave. Highs in the 90s and triple digits combined w/ humidity and dewpoints surging into the upper 70s, if not low 80s, will create heat indices as high as 110 to 115 through this weekend. Air quality will likely be poor due to haze and little air circulation.
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Hazardous Weather Conditions

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Marquette, MI Local Forecast Office

25NM WSW Ontonagon MI

Marine Point Forecast

[NOTICE]
  • Overnight

    Chance Thunderstorms

    S 10kt
    1ft

    Low: 60 °F

  • Thursday

    Chance Thunderstorms

    Light Wind
    < 1ft

    High: 71 °F

  • Thursday
    Night

    Partly Cloudy

    SSW 10kt
    < 1ft

    Low: 63 °F

  • Friday

    Chance Showers

    W 10kt
    < 1ft

    High: 70 °F

  • Friday
    Night

    Chance Showers

    W 10kt
    1ft

    Low: 59 °F

  • Saturday

    Mostly Sunny

    Light Wind
    < 1ft

    High: 66 °F

  • Saturday
    Night

    Chance Showers

    Light Wind
    < 1ft

    Low: 56 °F

  • Sunday

    Chance Showers

    Light Wind
    < 1ft

    High: 63 °F

  • Sunday
    Night

    Chance Showers

    Light Wind
    < 1ft

    Low: 56 °F


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 9:55 pm EDT Jul 17, 2019
Forecast Valid: 11pm EDT Jul 17, 2019-6pm EDT Jul 24, 2019

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Detailed Forecast

Overnight
S wind around 10 kt. A chance of showers and thunderstorms after midnight. Waves around 1 ft.
Thursday
Variable winds 5 kt or less. A chance of showers and thunderstorms before 11am, then a chance of showers between 11am and noon. Waves 1 ft or less.
Thursday Night
SSW wind 5 to 10 kt. Partly cloudy. Waves 1 ft or less.
Friday
SW wind 5 to 10 kt becoming W in the afternoon. A chance of showers after 2pm. Waves 1 ft or less.
Friday Night
W wind around 10 kt. A chance of showers before 2am. Waves around 1 ft.
Saturday
Variable winds 5 kt or less. Mostly sunny. Waves 1 ft or less.
Saturday Night
Variable winds 5 kt or less. A chance of showers after 2am. Waves 1 ft or less.
Sunday
Variable winds 5 kt or less. A chance of showers. Waves 1 ft or less.
Sunday Night
Variable winds 5 kt or less. A chance of showers. Waves 1 ft or less.

*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.
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ABOUT THIS FORECAST

Point Forecast: 46.79°N 89.93°W
Last Update: 9:55 pm EDT Jul 17, 2019
Forecast Valid: 11pm EDT Jul 17, 2019-6pm EDT Jul 24, 2019
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