Metro Detroit weather forecast: Severe storm threat in SE Michigan

Flood Watch will be issued today

The forecast has become very complicated, but what I can say for sure is that we’ll have thunderstorms periodically crossing the area through Thursday.  A wave of thunderstorms will cross the area this morning, as a push of even warmer, more humid air heads this way.  I do not expect any severe weather with these storms, although torrential downpours and lightning are a certainty.  After these storms pass by, there should be a short lull, followed by periodic little batches of storms popping up and moving through. 

WATCH LIVE: Michigan weather radar

Any storm this afternoon through tonight has the potential to become severe, with damaging wind gusts and flooding from additional torrential downpours being the biggest threat, while the strongest storms could also produce quarter-size or larger hail.  A Flood Watch will go into effect beginning at 11:00 a.m. for the northern half of our area, and for the southern half of our area beginning at 8:00 p.m.  There is also a tornado threat with this evening’s storms due to what appears to be sufficient low level wind shear (veering of the wind direction from the surface up a few thousand feet).

I cannot predict exactly where and when each individual batch of thunderstorms will materialize today, so be aware that there will be a risk all day long, and this has significant implications for Metro Detroit Youth Day on Belle Isle, the Metallica Concert this evening at Comerica Park, and the 25th Concert of Colors.  If you will be attending any of these events, I strongly urge you to check the radar often on our Local4Casters app.  Don’t have the app?  Then just go to the app store and search under WDIV…it’s right there.  And best of all is that it’s FREE.  And make sure your weather radio is set to alert before going to bed tonight, as some warnings could potentially be issued after you’re asleep.  Also remember to follow me on Twitter (@PGLocal4) for personalized storm updates.

Today will be a very hot and humid day…a real struggle for those without air conditioning.  Highs should reach the upper 80s (32 degrees Celsius), with the humidity making it feel like mid 90s (36 degrees Celsius).  Temperatures tonight will only fall into the low to mid 70s (22-23 degrees Celsius), so it’ll be a very difficult sleeping night if you don’t have air conditioning.

Today’s sunrise is at 6:08 a.m., and today’s sunset is at 9:10 p.m.

Mostly cloudy on Thursday, with showers and thunderstorms possible.  Most of us don’t have a severe risk on Thursday, but there is a small risk in to the far south.  Highs in the low to mid 80s (28-29 degrees Celsius).

Any showers and thunderstorms left in the area Thursday night should come to an end.  Lows in the mid 60s (18 degrees Celsius).

Mostly cloudy to start on Friday, then becoming partly cloudy and less humid, with highs near 80 degrees (27 degrees Celsius). 

I’ve been telling you all week long about the weekend cold front, and the computer models apparently didn’t have a good handle on things.  But this morning’s models are now coming into agreement on the weekend scenario.  Saturday should be a mostly sunny, spectacular summer weekend day, with highs in the mid 80s (29 degrees Celsius).  The cold front, unfortunately, now does appear to be coming through on Sunday, and at a much slower pace than earlier projected.  Thus, I now have to introduce some showers and thunderstorms into the Sunday forecast.  Highs should reach 80 degrees (27 degrees Celsius).  I’ll keep a very close eye on things, and update you again tomorrow.

As for next week, expect partly cloudy to mostly sunny skies Monday through Wednesday, with highs in the low to mid 80s on Monday (28-29 degrees Celsius), and then near 90 degrees (32 degrees Celsius) Tuesday and Wednesday.  It now appears that a cold front will cross the area on Thursday, with a chance of thunderstorms.

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