As civilization were about to commemorate decoration Day 1947 (now called Memorial Day), they to be unaware the a so late season snowstorm to be poised come hit the main United States and also western great Lakes region. As soon as finished, this extraordinary storm would certainly leave as much as a foot of eye in some locations causing damages to homes, trees, and also other property. The job leading approximately the storm observed a remarkable drop in temperatures. On might 25, temperatures were close to 70 at numerous locations across Wisconsin. A weak cold front driven through Wisconsin ~ above the 26th, happen cooler problems with highs around 60. A an additional and stronger cold front moved across the state ~ above the 27th. The cold front ongoing south and finally stalled throughout the main plains into the Ohio sink (Figure 1). Behind the cold front, cold Canadian air to be firmly entrenched across Wisconsin with temperatures in the 30s and also 40s.

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The storm started to brew on the 27th throughout Colorado and was heading eastward right into the main plains at an early stage the 28th (Figure 1). A sharp contrast in temperature was detailed on the daily map. To the phibìc of the front, temperatures were in the 30s and also 40s v unseasonably cold dew point temperatures for late may in the teens and also 20s throughout the northern plains. South of the front, temperatures were in the 60s and 70s with abundant moisture flow northward into the central plains with dew point temperatures in the 50s and also 60s. The ingredients were coming together for a far-reaching spring storm throughout the main United States and western good Lakes region. Together the low pressure device deepened throughout the main plains, the cold and dry air throughout the levels was pushed southward. The rain adjusted to snow throughout Nebraska ~ above the morning that the 28th and also became really heavy where Alliance and Harrison obtained a foot of snow. The storm ongoing to move northeast throughout northern Missouri during the afternoon the the 28th. Eye was reported throughout the north two thirds the Iowa through 8 inches at Cherokee, 7.5 inches at Waukton, 6 inches at Alton, and 4.5 inches in ~ Mason City. The storm then relocated northeast to close to Chicago beforehand the 29th (Figure 2). The storm was a far-ranging liquid precipitation producer throughout Wisconsin together totals (rain and also melted snow combined) to be generally in between one and also two inches across the southern half of the state. The cold air the dropped south out that Canada to be the crucial ingredient because that the rain to readjust to snow regardless of the calendar indicating that was nearly June. Some locations throughout the plains and also Wisconsin knowledgeable their biggest May snowfalls on record. Newspaper accounts shown that the heaviest snows fell across Wisconsin throughout the afternoon and also evening hrs on the 28th. Part snowfall totals across the state are listed in the complying with table.
In Wisconsin, the wet, clinging eye broke huge branches off trees, damaging or death the fruit and also the tree themselves. In addition, the hefty snow knocked down power lines native the main plains into Wisconsin throughout the height of the storm.

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The feather storm also caused recurring swells top top Lake Michigan that 5 feet or more along the south east Wisconsin coastline. The high waves created damage to little craft, docks, waterfront buildings, and also property.