We’re going to have three more warm and humid days, starting with today (Thu.). Afternoon temperatures today will range from the upper 70s at Lake Michigan to the mid-upper 80s in inland areas.
Tuesday was the hottest day of the summer in West Michigan (highs: 92° Grand Rapids, 94° Kalamazoo and the first 90-degree day of the year at Holland and Muskegon) and today should be just about as hot. Wednesday both Grand Rapids and Kalamazoo reached 90 degrees. It was the fourth 90-degree day in Grand Rapids and then Thursday was the 5th 90-degree day of the summer in G.R.
Dewpoints remain high (some of this moisture comes from the process of transpiration…the corn and beans soaking up a lot of water and releasing it into the air through the leaves), in the upper 60s to low 70s. The heat index reached 101° in Grand Rapids on Tues. and 104° in Kalamazoo.
Here’s some rainfall totals from Tuesday: Rockford 2.20″, Kalamazoo 1.85″, Belding 1.74″, Big Rapids 1.36″, Mt. Pleasant 1.18″, Battle Creek 1.17″, Comstock Park 0.18″, Holland 0.12″, Grand Rapids 0.06″ and Muskegon 0.04″.
Above is the Severe Weather Outlook Area for this Fri. PM/night. There’s an Slight Risk (in yellow on the map) from Omaha to Central Wisconsin. The Marginal Risk has been extended east into Lower Michigan, mainly for isolated strong wind gusts. The Marginal Risk is generally north of G.R. The rest of West Michigan is in the (light green on the map) General T-Storm outlook. Most of the day will be dry with a better chance of a shower or storm from G.R. to the north.
The Severe Weather Outlook Map for Saturday (8/28) has a Slight Risk from NE Nebraska to NW Wisconsin. All of Michigan is in the General Thunderstorm Outlook, but much or all of the day Saturday should be dry.
There is a Marginal Risk of a severe storm on Sunday across most of Lower Michigan. This may have to be expanded or upgraded to a Slight Risk. A cool front will be coming through Sunday evening with at least scattered showers and storms. Some storms could kick up some gusty winds and there could be at least brief heavy rain.
In the meantime, stay cool and hydrated.
We’ll see a little cooler and less humid air beginning Monday PM.