4Warn Weather – HEAT Advisory: In effect for all of Southeastern Michigan from 11 a.m. to 8 p.m. Thursday.
Heat index values will soar into the upper 90s and lower 100s by Thursday afternoon into Thursday early evening.
Wednesday night: Mainly clear skies, warmer and more humid. Low: 71.
THURSDAY: Mostly sunny skies early, very hot and humid. A few thunderstorms are possible by late afternoon and early evening.
High: 94. Heat index values as high as 102°-103° by the afternoon.
Thursday night: Partly cloudy skies, a chance of showers and thunderstorms late in the evening, and into the early overnight. Low: 73.
After plenty of sunshine and hot temperatures throughout the day, most of us reaching into the mid upper 80s in the afternoon, we are looking to our next summer heat wave moving into the region, looking ahead into our Thursday.
Through the overnight hours tonight, expect mainly clear skies. It will not be as cool overnight as it has been the past few nights.
Overnight lows are dropping into the low 70s for everybody.
Looking ahead to Thursday, we will see sunshine for the majority of the day. It will be hot.
It will be humid throughout the day, and we expect high temperatures to reach the mid-90s.
However, once you factor in the humidity, we expect heat index values to reach or exceed 100° for most of us throughout a significant part of the day.
Heat Advisories will remain in effect for most of the day due to the high heat and humidity, so this is the time to take appropriate precautions to protect yourself from the extreme heat.
We will bring chances of showers and thunderstorms by the time we reach late afternoon on Thursday and into Thursday evening.
The Storm Prediction Center has placed the entire region under a marginal risk (1 out of 5) on our severe weather scale for Thursday.
Damaging winds above 60 mph will be the primary threat, along with heavy rainfall, as the region is saturated with moisture due to the heat and a frontal boundary moving into the area.
Weekend forecast
That frontal boundary sticks around through the end of the weekend end of the start of the weekend, so we will keep the chances of showers and thunderstorms in the forecast both Friday and Saturday.
High temperatures are expected to reach the upper 80s by Friday, then drop into the middle 80s for the start of the weekend on Saturday.
As the frontal boundary moves east, we will clear things out by the end of the weekend on Sunday.
Still, I will keep the slight chance of a shower or thunderstorm in the forecast, but it looks much better to end the weekend than what we will have to start it.
High temperatures are expected to warm back into the upper 80s by Sunday afternoon.
The 90s are back in the forecast, with another chance of showers and thunderstorms expected late Monday night, continuing into early Tuesday morning.
High temperatures are expected to drop back into the upper 80s near 90° by next Tuesday.
Find the latest forecast from the 4Warn Weather team here
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