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Beware of thunderstorms for Memorial Day Weekend

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Temperatures weren't as warm Friday under the cloud cover, but it is continuing to get more humid. We were still below 60 on our dew points with an exception or two Friday, but dew points will continue to climb this weekend.

Saturday will be flirting with that humid 60 degree dew point mark and we're expecting low to mid 60s Sunday and Monday. Temperatures will feel like summer, too, with highs near 80 starting Sunday.

With this warmer and humid air, there will be several rounds of scattered showers and thunderstorms moving through.

While there will be plenty of dry time for outdoor activities, just remember that lightning can strike over 10 miles away from the storm, so if you can see lightning but can't count to 30 before hearing thunder, you're too close to the storm.

Especially if you're out on the lake this weekend, realize that it will take time to safely return to inside a building where you're safe from lightning.

Fishing is number one on the list of what people were doing when they were struck and killed by lightning, and many other Memorial Day weekend activities like camping and boating are also on that list.

Our free New 18 Stormtracker Weather App will alert you when lightning is in your vicinity, but if you're out on the water that may be too late. Check the app's radar and lightning layers often this weekend so you know when you have to get indoors.

More lightning safety information can be found here.

Be prepared as thunderstorms are possible at some point each day. The first cluster of storms after early morning scattered showers Saturday will come in the afternoon, but latest analysis shows the widespread activity staying south of us, keeping the biggest threat for marginally severe weather there. Still, a few thunderstorms are possible locally.

Another round arrives Sunday midday and could bring some gusty winds and possibly hail to Western Wisconsin, then more chances continue on Memorial Day Monday.

Rain totals may not be impressive widespread, but locally heavy rain remains possible.

Temperatures will stay warm through next week and expect some summer-like humidity, too.

Matt Schaefer

Matt Schaefer was promoted to Chief Meteorologist in July of 2019 and has been our evening meteorologist for News 18 since June of 2016. Prior to that, he was our Saturday meteorologist starting in September 2014.

Matt was born and raised in Sheboygan, Wisconsin. He enjoys all the extremes that mother nature throws at the Badger State: from severe thunderstorms to blizzards to subzero temperatures.

Matt studied meteorology in the Midwest as well, earning his Bachelor’s of Science in Meteorology at Valparaiso University in Indiana. There, Matt was heavily involved in VUTV Weather, the Valpo student chapter of AMS/NWA, and VUSIT (Valparaiso University Storm Intercept Team). He’s logged more than 20,000 miles chasing and studying severe storms all across the country and witnessed nine tornadoes including six in one day!

Matt describes himself as a Wisconsin boy at heart and enjoys cheering for the Packers, Brewers, Badgers, and Admirals just to name a few. He loves simply being outdoors and enjoys the Wisconsin wilderness especially in fall, and whitetail deer season!

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