Metro Detroit weather: Spotty rain Friday before Saturday storms

Friday highs in upper 70s

Here is the weather forecast for Metro Detroit.
Here is the weather forecast for Metro Detroit.

DETROITHappy Friday!

A threat of severe weather is increasing for Saturday, but Friday should be more mild.

Friday’s sunrise was at 6:18 a.m.

Today will feature scattered showers and thunderstorms. Not every region will be getting one at any particular time, but we are all at risk. It is helpful to frequently check our weather app’s real-time radar if you have outdoor plans (download for iPhone / Android).

The additional cloud cover Friday will keep highs in the upper 70s. A south-southeast wind moving at 5 to 10 mph will keep things a tad cooler near our eastside lakeshores.

Friday’s sunset is at 9:01 p.m.

Our Friday night should be relatively quiet, although a shower or thunderstorm is possible late at night. Lows will be in the upper 60s. A south wind will blow at 4 to 7 mph.

Saturday’s severe threat

Saturday morning will start with scattered showers and thunderstorms ahead of a warm front crossing the area. That front is the front edge of a much stickier air mass, so get ready for the humidity to come roaring back.

It may take about 2-3 hours for thunderstorms to start developing once the warm front passes. Storms will develop along a line from roughly Saginaw Bay to Kalamazoo, and they will move southeastward during the hottest part of the day.

These storms will become strong-to-severe, with a high risk of damaging wind gusts. There is also a risk of hail, but that isn’t as big as the wind threat. So, be ready for potential power outages by keeping your devices fully charged Saturday morning.

I have especially high concerns about these storms because Saturday is the start of the Port Huron to Mackinac Island Sailboat Race. These storms will pose a significant risk to the boaters, so I hope that the strongest storms miss southern Lake Huron.

Highs Saturday should reach a humid mid 80s. Storms and lingering showers will diminish Saturday night, with muggy lows in the low 70s.

It will be partly cloudy to mostly sunny on Sunday, with hot and humid highs near 90 degrees.

Remember to download the FREE Local4Casters weather app -- it’s easily one of the best in the nation. Just search your app store under WDIV and it’s right there available for both iPhones and Androids! Or click the appropriate link below.

About the Author:

Local 4 meteorologist Paul Gross was born in Detroit and has spent his entire life and career right here in southeast Michigan. Paul has researched, written and produced eight half-hour documentaries for WDIV, as well as many science, historical and environmental stories.