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Thunderstorms possible tonight, then 'dangerous' heat, humidity moves in

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Things will start to heat up Tuesday.

The high will be near 90 degrees, with the chance of some thunderstorms before the heat and humidity arrives Wednesday, the National Weather Service says.

Thunderstorms Tuesday night into Wednesday morning could produce "heavy rainfall" across east-central and southeastern Minnesota, which could lead to some flash flooding in urban areas.

https://twitter.com/NWSTwinCities/status/755356364936019968

This has prompted the National Weather Service to issue a flash flood watch for the area, including the Twin Cities.

'Dangerous' heat wave

After some wet weather, the heat moves in.

The National Weather Service says "dangerously hot and humid" conditions are expected Wednesday through Friday, with Thursday shaping up to be the hottest day of the week.

https://twitter.com/NWSTwinCities/status/755353210529968128

High temperatures are expected to climb into the 90s Wednesday, and may reach 100 degrees in some areas on Thursday. With temperatures that high, and dew points in the 70s and lower 80s, the heat index will range from 100 to 110 degrees.

And there will be little relief at night. Low temperatures are expected to be in the mid-70s to lower 80s.

https://twitter.com/NWSTwinCities/status/755370502500343808

Excessive heat warning

The National Weather Service has issued an excessive heat warning for the Twin Cities and much of central and western Minnesota from 1 p.m. Wednesday through 7 p.m. Friday, while an excessive heat watch in effect for southeastern Minnesota, and central Minnesota north of the warning area. (See map below.)

https://twitter.com/NWSTwinCities/status/755347450186043396

Weather officials are urging people to drink plenty of water and avoid a lot of time outside to limit the risk of heat-related illnesses. For more heat safety tips, click here.

When will we get some relief?

Things are expected to be less humid this weekend, but the timing of when things will start to cool off is still a little uncertain, the weather service says.

A cold front is expected to push into the area on Friday or early Saturday, the agency notes.

For more on the forecast, check out this forecast video briefing from the National Weather Service:

https://www.youtube.com/watch?v=fK2p2an8aCo&feature=youtu.be

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