Some storms persist, extreme heat expected beginning Tuesday

Mia Laube KSTP

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Near the end of Monday’s round of storms, meteorologists are advising that people prepare for extreme heat conditions.

Although rain has mostly cleared from the metro, storms and flooding are still possible in some areas through midday Monday, 5 EYEWITNESS NEWS meteorologist Matt Serwe said.

It will be breezy with temperatures in the 80s Monday, but Tuesday’s Heat Index values could exceed 100 degrees, 5 EYEWITNESS NEWS meteorologist Jonathan Yuhas reported Monday.

Heat advisories have been issued in Minnesota and Wisconsin for the majority of the day Tuesday.

See the most recent weather advisories by CLICKING HERE.

Yuhas said temperatures in the 90s could last into next week after possible severe storms Wednesday.

NWS has given advice on staying safe in the heat.

Read tips for staying safe in extreme heat via the dropdown below.

An excessive heat warning is issued within 12 hours of the onset of extremely dangerous heat conditions, according to the National Oceanic and Atmospheric Administration (NOAA). This type of warning is typically issued when the maximum heat index temperature is to be 105 degrees or higher for at least two days and nighttime temperatures stay above 75 degrees, however, those criteria can vary across the country.

An excessive heat watch is issued when conditions are likely for an excessive heat event in the upcoming 24 to 72 hours.

An excessive heat outlook is issued when there is potential for an excessive heat event in the upcoming three to seven days.

NOAA suggests drinking plenty of water and eating cool, easy-to-digest foods such as fruit or salads while inside. Take a cool bath or shower. Use air conditioners or spend time in air-conditioned locations. Do not direct the flow of portable electric fans toward you if the room's temperature is over 90 degrees; the blowing air is more likely to dehydrate you faster. Make sure rooms are well-vented.

According to NOAA, if you must go out during excessive heat events, you should dress in lightweight, loose clothing that reflects heat and sunlight. Drink plenty of water and minimize exposure to the sun. Do not leave valuable electronic equipment, such as cellphones and GPS units, in hot vehicles. Children, seniors and anyone with underlying health conditions should stay in the coolest places available to them.

Find a map of cooling centers in Hennepin County here, and a map for Ramsey County here.

Xcel Energy has also given tips for saving energy in a heat wave.

Excel advises keeping blinds, curtains and exterior doors fully closed. Maintaining air conditioners and upgrading thermostats can help with energy efficiency. Ceiling fans can be run counter-clockwise to circulate cool air while using less energy than AC systems.

Check back for updates.

INITIAL REPORT:

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Strong thunderstorms are moving rapidly northeast Monday morning, with possibilities for gusty winds, hail and heavy rainfall that could lead to spot flooding, says 5 EYEWITNESS NEWS meteorologist Jonathan Yuhas.

Storms are expected to hit the Mankato area around 5:30 a.m., then move from Chaska and Prior Lake into the Metro after 6 a.m.

Twin Cities residents and commuters should prepare for thunderstorms from 6-10 a.m., Yuhas said.

Storms on the later end of that time frame will likely extend into western Wisconsin.

Yuhas said counties most at risk for intense storms are Carver, Hennepin, Ramsey, Scott, Dakota and Pierce County in Wisconsin.

CLICK HERE for the latest severe weather updates, and HERE for the interactive radar.

A list of current warnings and watches can be found here.

Once storms clear up, heat and humidity will rise Monday afternoon into Tuesday.

An Excessive Heat Warning is in place for 11 a.m. to 8 p.m. Tuesday for the Heat and High Risk of Heat Related Illness. 

The next storms are not expected until Wednesday, Yuhas reported early Monday morning.