Wednesday, April 04, 2018

Yesterday's Severe Thunderstorms


Yesterday's surface cyclone tracked across the central and upper Midwest about 100 miles north of the path observed in 1925. The mesoscale details of the situation were quite different, however, and the storms yesterday (above from SPC) produced mostly wind and hail reports.

The chart below summarizes events from March, 1925 (inside red boundary) and also indicates the area of the Jumbo Tornado Outbreak of April 3, 1974 (gray boundary). Yesterday's and March 25 outbreaks affected similar areas - differences in Arkansas and east Texas related to the dryline which swept eastward south of 1925 low, but did not yesterday. (Image below will not enlarge, unless you go to  http://www.ejssm.org/ojs/index.php/ejssm/article/view/114/88 .)






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