2011-04-10 DISC: WI/IA/MI/IL

[rdale]

Good info. But it still tied as the most tornadoes reported in April, which is what the original post was about.

APRIL 10 2011 WILL GO DOWN AS ONE OF THE BIGGER TORNADO OUTBREAKS IN WISCONSIN HISTORY. IT IS TIED FOR THE BIGGEST TORNADO OUTBREAK IN TERMS OF NUMBERS OF TORNADOES IN ONE DAY IN THE MONTH OF APRIL (APRIL 27 1984-WALES F4 IN WAUKESHA COUNTY)

To get back on topic, I did a brief review for our AMS/NWA Chapter meeting last night.

http://amsnwa.com/April9-10SevereWeather.pdf

 

[Andy Wehrle]

They were comparing April 10th of this year to other April outbreaks, but the page went on to include lists comparing them to the top ranking Wisconsin tornado outbreaks of all time, which initially omitted 8/18/05 when the page was first uploaded.

Opted not to chase when it became clear the action area was going to be too far north. For awhile I wasn't even sure south central and southeast Wisconsin were even going to get any thunder. Then a little after 10:00 a thunderstorm intensified as it crossed Waukesha county and brought some severe wind gusts and an intense lightning show to the Milwaukee area.

http://www.youtube.com/watch?v=b9KnGrVhikg

 

[Jeff Duda]

Gino Izzi from the Chicago office gave a good presentation explaining the general lack of a major tornado outbreak for this day: http://www.crh.noaa.gov/lot/?n=anybriefing

 

[Jason Harris]

The Merrill tornado was up to 140 on damage reports, so it did qualify as EF-3 (low-end, 136-165 mph range)

http://www.crh.noaa.gov/grb/?n=110410_tornadoes

http://wsau.com/news/articles/2011/apr/12/merrill-suffers-nearly-11m-tornado-damage/

notice:
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Merrill suffered $10.8 million in damage from an EF-3 tornado that reached maximum wind speeds of 140 miles-per-hour. The twister, which blew through a 22-mile path from a mile north of Hamburg in Marathon County to Gleason in Lincoln County, destroyed 22 homes and seven businesses, caused major damage to 22 homes and one business and minor damage to 20 homes and four businesses.
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One guy got airborne but didn't recall it:
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http://oshkoshhub.thenorthwestern.c...-tornado-causes-11M-damage-hurls-man-200-feet