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- By SnarkyGoblin,
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2878
May 2026 Weather In The PNW
Tell me they don’t know the difference between a determinist vs. A probabilistic forecast without telling me they know the difference.- 1
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326
May 2026 Observations and Discussion
May is closing out stormy. Thunderstorms overnight dropped .90 inches of rain. More storms forecasted for this evening. -
326
May 2026 Observations and Discussion
Today is the last day of May and the end of meteorological spring. May will end up dryer and cooler than average. Here in my yard, I had a crisp low of 47 with clear skies. The week ahead looks most sunny, dry and warm. Highs should be in the upper 70’s to lower 80’s lows with be in the 50’s then warm up to the low to mid 60’s it will be dry until at least Friday when there is a chance of showers over the weekend. The official H/L yesterday at Grand Rapids was 72/53 there were 2 Heating Degree Days, there was no rainfall the highest wind gust was 29 MPH out of the E. The day had no significant weather events. For today the average H/L is 75/45 the record high of 95 was in 1934 the coldest high of 41 was in 1910 the record low of 36 was in 1966 the warmest low of 73 was in 1937. The wettest was 1.37” in 1909. Last year the H/L was 63/44. Some weather history for May 31st 1889 The Johnstown disaster occurred, the worst flood tragedy in U.S. history. Heavy rains collapsed the South Fork Dam sending a thirty foot wall of water rushing down the already flooded Conemaugh Valley. The wall of water, traveling as fast as twenty-two feet per second, swept away all structures, objects and people. 2100 persons perished in the flood. (David Ludlum) 1985 Severe thuunderstorms spawned forty-one tornadoes across the Lower Great Lakes Region and southeastern Ontario which killed 74 persons. (Storm Data) Here in Michigan there was also a tornado outbreak in 1943: tornado outbreak hit southern Lower Michigan. Ten people were injured as homes were swept away by a powerful tornado that moved southeast of Morrice in Shiawassee County. A tornado killed livestock and destroyed a barn near Morley in Mecosta County. A home near Coopersville in Ottawa County was unroofed by a tornado and three people were injured. Another tornado struck near Bath in Clinton County destroying one barn- 1
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