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

8NM E Copper Harbor MI

Marine Point Forecast

[NOTICE]
  • Overnight

    Chance Thunderstorms

    SSE 15kt
    2-3ft

    Low: 50 °F

  • Thursday

    Chance Thunderstorms

    S 15kt
    1-3ft

    High: 60 °F

  • Thursday
    Night

    Patchy Fog

    SW 10kt
    < 1ft

    Low: 59 °F

  • Friday

    Slight Chc Showers

    SW 10kt
    < 1ft

    High: 59 °F

  • Friday
    Night

    Slight Chc Showers

    W 15kt
    1-2ft

    Low: 52 °F

  • Saturday

    Mostly Sunny

    W 10kt
    1-2ft

    High: 57 °F

  • Saturday
    Night

    Mostly Cloudy

    Light Wind
    < 1ft

    Low: 50 °F

  • Sunday

    Partly Sunny

    Light Wind
    < 1ft

    High: 56 °F

  • Sunday
    Night

    Chance Showers

    Light Wind
    < 1ft

    Low: 50 °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
SSE wind 10 to 15 kt. A chance of showers and thunderstorms, mainly after 4am. Waves 2 to 3 ft.
Thursday
S wind 10 to 15 kt. A chance of showers and thunderstorms. Patchy fog after 10am. Waves 1 to 3 ft.
Thursday Night
S wind 5 to 10 kt becoming SW after midnight. Patchy fog before 11pm. Waves 1 ft or less.
Friday
SW wind around 10 kt. A slight chance of showers after 2pm. Waves 1 ft or less.
Friday Night
W wind 10 to 15 kt. A slight chance of showers before 2am. Waves 1 to 2 ft.
Saturday
W wind 5 to 10 kt. Mostly sunny. Waves 1 to 2 ft.
Saturday Night
Variable winds 5 kt or less. Mostly cloudy. Waves 1 ft or less.
Sunday
Variable winds 5 kt or less. Partly sunny. 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: 47.47°N 87.69°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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