The Cooldown

Bill's Blog

We’ve begun a significant and long cooldown here in West Michigan and a good portion of the Central and Eastern U.S. The map above is forecast high temperatures for Friday, Oct. 2. You can see we’re only going to be in the low 50s here, with readings only in the mid 40s in Upper Michigan. The cool air will press south with temperatures holding in the 60s all he way down to northern Mississippi, Alabama and Georgia.

8-14 Day Temperature Forecast from the Climate Prediction Center

Once the colder air moves in…it’s going to stick around. This is the 8-14 day temperature outlook from the Climate Prediction Center for Octobere 4 – 10 and the cool rules in the eastern U.S. with summerlike heat in the West.

High temperatures Saturday PM

Here’s high temperatures for Saturday PM – this was probably the last 80-degree day of the year. Readings were cooler at Lake Michigan. The high temperature at the airport in Muskegon was 75°, but the daytime high temperature at the Muskegon Beach was just 69°.

South Haven Channel Sept. 26, 2020

This pic. from the S. Haven Lighthouse shows a wave crashing over the breakwater. Saturday night we had gusts to around 40 mph at the lakeshore. Waves at the Ludington Buoy peaked at 8.6 feet. The Muskegon Beach had a steady 30 mph wind at midnight Saturday night and the Muskegon Airport had a gust to 42 mph.

High temps. Sunday PM 9/27 20

Here’s high temperatures Sunday. The clouds kept the temps. down a bit from Saturday. The average high temp. for Sunday in G.R. was 68°. The high temperature at the Muskegon Beach was 67° and at the S. Haven beach it was 68°. The water temp. at Holland St. Park Sunday PM was 66° and the water temp. of Reeds Lake Sunday PM was 69°.

High Temperatures This Week

Here’s high temperatures for the week. The six days from Tuesday (22nd) to Sunday (27th) were 7.3° warmer than average. Now we’ll see well below average temperatures…and from Sept 17 – 26, we had a whopping 87% of possible sunshine. Now, clouds will dominate this week. For the 2 weeks ending Sunday, Grand Rapids had just a trace of rain, and only 0.08″ in the 18 days from the 10th to the 27th. Even with the dry 2 1/2 weeks, the Grand River in Grand Rapids is still at 109% of average flow. The Muskegon, Kalamazoo and Saginaw Rivers also show slightly above average flow. We’ re not looking for very heavy amounts of rain this week…mainly occasional light rain and showers and the ground is dry and should soak most of this up.

Click for latest Composite Reflectivity radar image from the Grand Rapids/Muskegon, MI radar and current weather warnings

Here’s Grand Rapids radar (above) and Regional Radar (below):

Central Great Lakes sector loop
Go to: Most Recent Image

Also: Check out this pic. of lightning in Colorado!

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