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

Hazardous Weather Outlook

For More Weather Information:

Marquette, MI Local Forecast Office

8NM E Copper Harbor MI

Marine Point Forecast

[NOTICE]

Overnight

SSE 15kt
2-3ft
Low: 50 °F
Thursday

S 15kt
1-3ft
High: 60 °F
Thursday
Night
SW 10kt
< 1ft
Low: 59 °F
Friday

SW 10kt
< 1ft
High: 59 °F
Friday
Night
W 15kt
1-2ft
Low: 52 °F
Saturday

W 10kt
1-2ft
High: 57 °F
Saturday
Night
Light Wind
< 1ft
Low: 50 °F
Sunday

Light Wind
< 1ft
High: 56 °F
Sunday
Night
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

View Nearby Observations

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:

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.
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.