SOUTHEAST OF GRR THIS AFTERNOON PER HREF/CAM GUIDANCE WHERE SFCīASED CAPES CREEP UP ABOVE 500 J/KG. OTHER LOCAL/NARROW STREAKS OF HEAVIER 1″ AMOUNTS ARE POSSIBLE WHERE LOCAL AMOUNTS OVER 1″ ARE POSSIBLE. THIS MAY INCLUDE THE MT PLEASANT AND CLARE AREAS, SAGINAW BAY AREA DURING THE AFTERNOON HOURS WHERE SFC CONVERGENCE THAT THE HIGHEST RAINFALL AMOUNTS WILL OCCUR OVER/NEAR THE PLACEMENT, BUT HREF PROBABILITY-MATCHED MEAN APPROACH SUGGESTS GUIDANCE/CAMS CONTINUE TO STRUGGLE WITH QPF AMOUNTS AND TODAY, BRINGING SCATTERED TO NUMEROUS SHOWERS AND PERHAPS A FEW MID LEVEL SHORTWAVE CURRENTLY OVER WI PIVOTS EAST THROUGH LWR MI The coldest maximum of 68 was set in 2015, 20. For today the average H/L is 83/62 the record high of 101 was set in 1936 and the record low of 46 was set in 1992. Last year at this time there were 222 so this summer so far is cooler than last year. There were 4 CDD’s the total since June 1 st in now at 218 that is +8 so the summer has been warmer than average so far. The official H/L yesterday at Grand Rapids was 80/58 there was a reported 0.01” of rain fall. On the east side of the state Detroit and Flint have only 2 and Saginaw has 4 so far. Muskegon has the lead with 10 Holland has 7. So far this year Grand Rapids and Lansing are at 9 days of 90 or better. The 30 year average for the number of days of 90 or better in southern lower Michigan are Grand Rapids and Lansing 10, Holland 9, Muskegon 4, To the east Detroit 13, Flint 11 and Saginaw 8. We haven’t had a heat wave even come close to the torrid heat of July 1936. Nationally 5000 died in what is still the nation’s most intense heat wave. In Michigan, 570 people died during that week due to heat.
And Holland had highs just in the upper 90’s Muskegon only had highs in the 80’s on most days.Īccording to MSU, 364 died in Detroit during the 1936 heat wave. Mio, MI had Michigan’s hottest temperature ever recorded at 112 degrees on July 13, 1936. All of southern Michigan and much of northern Michigan sweltered with seven days in a row over 100 degrees. Take a look at what Michigan suffered through in July 1936. At Grand Rapids the heat wave started on July 7 th with a high of 98 and 11 of the next 12 days had highs of 90 or better and there were 6 days of 100 or better including the all time record high of 108 on July 13 th This week is the 87 th anniversary of the greatest heat wave in Michigan history.
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