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Prepare for a cold Mother's Day weekend in metro Detroit

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Posted at 6:05 PM, May 05, 2020
and last updated 2020-05-05 18:22:44-04

(WXYZ) — Talk about a slow start to spring. Once again, metro Detroit is dealing with a below average week and it's about to reach a new low. A very deep vortex will drop through a long wave trough or significant dip in the jet stream causing cold air to pour into the Great Lakes this weekend. What are the results of this weather pattern? Snow showers, record challenging lows and frost are all possible in the days ahead.

Frost Timing

Frost is always possible during the first part of May in southeastern lower Michigan, which is why waiting until after Mother's Day to plant and garden is a good rule for a green thumb. In fact, our average last frost stretches as far as the first week of June in areas like Lapeer. If you got to work in your garden during the beautiful weather LAST weekend - be sure to protect your plants from the weather THIS weekend.

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Records at Stake

This weekend's air mass will go after a few records as well. Turns out we could either set a new record or tie for the coldest May night in 30 years.

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What About This Snow you Were Talking About?

Tell me about it...I'm not too thrilled myself, but snow in May isn't unusual in Michigan either. In fact, check out the list of Detroit's snowiest Mays.

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It's tough for spring snow to stick to the surface due to ground temps and high sun angles but it is possible as you can see. Timing is everything for accumulating snow and while at this time we're not expecting it to amount to much, we'll continue to monitor the trends to see if 2020 will make the list above.

Detroit weather 7-day forecast

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