I hope Rocky can see the humor in the post title as we have the opposite of cold winter air. Today will be more tropical with heat and humidity in place. We have a few popup showers moving south of Lansing to Detroit at 6 am. Temperatures today will reach 90° with dewpoints in the 70s with a slight chance of showers.
Yesterday we reached 87° with a low of 57°.
SPC Outlook
Day One
Day two
Day Three
Weather History
Yesterday was the one-year anniversary of the EF 1 tornado north of Grand Rapids. The tornado touched down at 8:15 p.m. that night in the area of Peach Ridge Avenue and 6 Mile Road in Alpine Township. It tracked northeast for 8.7 miles before lifting off at 8:30 p.m. near Rockford High School, the NWS said. Winds were estimated at up to 110 mph. The image below is from my Radarscope archive. The red semi-circular areas show the azimuthal shear.
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1910: A tornado injured four people near Scottville in Mason County. The tornado destroyed a cement block building, hurling the roof a half mile. Several other buildings were unroofed.
1940: A stalled cold front brings clouds and very cool high temperatures. At Muskegon, the high was only 56 degrees and Lansing was 57, both records for the coldest maximum temperatures for the month of August. The high of 60 degrees at Grand Rapids is only one degree higher than the record of 59 degrees set on August 26, 1987.
2004: A strong downburst tore the roof off a section of the Maple Valley High School in Eaton County. The same storm produced a weak tornado minutes later that took the tin roof off a house in Vermontville.
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On August 25, 1948, a record high of 98 degrees occurred in Detroit. Also, records of 95 degrees on the 24th and 98 degrees on the 27th were reached during this short hot spell.
NWS Forecast
Forecast Discussion
Warming continues, daily afternoon chances for storms ahead High pressure will continue to build over the upper mid west and the Great Lakes region today and through Monday. As the high pressure builds it will be positively tilted as an upper level low moves southward from Canada to over New England on Monday. Warm air advection will continue with 850 mb temps between 16 to 18C today and 19 to 21C tomorrow. This warm air advection should translate to max temperatures into the upper 80s and possibly around 90 this afternoon, and into the low 90s tomorrow. Maximum temperatures could be 10 to 15 degrees above normal. So welcome back summer we could always spot a friend. Dwindling isolated showers continue to move across southern Michigan early this morning. Latest CAMS continues to show a ribbon of higher CAPE values on a line from extending from Big Rapids through Lansing and southward this afternoon. This line also corresponds with a weak LLJ at 700mb just north of those CAPE values. PWATs look to be around 1 to 1.5 inches with moisture advection through the afternoon. So while the building high pressure could stifle convection, the warm daytime temps with humid air could allow for a few isolated showers to develop along the leading edge of those higher PWATs. Have adjusted POPS accordingly with increase POPS west of the US 131 corridor late tonight. There remains a weak chance for isolated showers daytime Monday but it remains a slight chance with the best chances through northern lower Michigan, including the US 10 corridor. - Very warm and somewhat unsettled weather for mid-late week The upper ridge that is building over the area in the early periods of the forecast will still be around come Tuesday morning. Heights will be quite high, and will support some temperatures likely in the 90s come Tuesday, along with dew points rising into the 70s. Temps in the lower 90s and dew points in the low to mid 70s would produce heat indices of lower 100`s. The upper ridge is going to get flattened a bit by Wednesday, before rebuilding for Thursday. This is the result of a couple of waves that will flatten the ridge briefly. Along with these waves will be some small shower/storm chances at times. Some slightly cooler temperatures can be expected on Wednesday. We will see the upper ridge build then again on Thursday as a decent upper low complex digs south across the Northern Rockies over Montana. This means better subsidence building in once again, and likely trending a bit drier for Thu. Friday looks to be a day of transition for the area, going from a very warm and humid air mass, to a cooler and drier air mass. The upper low taking shape over the Northern Rockies will rotate toward the area through Friday. There will be plenty of instability to be had ahead of the cold front. Depending on the exact timing of the front, there could be some strong storms ahead of the front. - Drying out and cooling off for Labor Day weekend The cold front is forecast to be well east of the area by daybreak Saturday, ushering in a much cooler air mass. It does look like the majority of the cold pool aloft and better instability will stay north of the area. So, as it looks right now, after showers and storms exit Friday, dry and cool conditions will move in for the Labor Day weekend.
Definitely a hot day out there today… whew. Currently at MSU visiting my bother, the dorm rooms are VERY uncomfortably hot
Yes, heat indexes near 100 degrees on Tuesday is not Winter! Bring the cool air back and let’s get the below normal temp pattern rocking again!
I am wondering how many schools will close at least half days this week …
We must’ve had a little.shower over night cement is wet.
We will be taking a short road trip this week starting tomorrow. We will be going to the Canadian side of the Soo (Sault) will spend a day going around the city and then taking the train that goes up to Agawa Canyon that is an all-day trip it is still in the most likely will take the ride category. If not will take a ride up to Wawa instead. If anyone has taken the train let me know today or early tomorrow.
Slim
I believe I rode that train but boy that was with my parents about 40 years ago. I don’t really remember much other than it was a really long ride.
The official H/L yesterday was 84/59 there was no rainfall, the sun was out 83% of the possible time. The highest wind gust was 19 MPH out of the SW. For today the average H/L is 80/60. The record high of 94 was set in1948 and 1959 the coldest high of 60 was set in 1940. The record low of 41 was set in 1942 the warmest low of 72 was set in 2020 and 1948. The record rainfall of 2.02” fell in 1940.
Slim