During this three day period, three rounds of severe weather occurred. The first round occurred during the early morning hours of March 11th with mostly a hail event that occurred south of Interstate 44 and the St. Louis Metropolitan Area. Hail size ranged from penny to golf ball, with many reports of hail covering the ground. The second round of severe weather occurred during the afternoon and evening hours of March 11th.  Round after round of supercell thunderstorms moved across the entire county warning area producing large hail, damaging winds and tornadoes. The third and final round of severe weather stretched from March 12 into the early morning hours of March 13.  Several waves of supercell thunderstorms brought large hail, damaging winds, and more tornadoes to Missouri and Illinois.

During this event the St. Louis Weather Forecast Office issued nearly 200 warnings, and received over 150 severe weather reports.  Meteorologists spent the following week surveying the tornado damage that stretched to the far reaches of the county warning area to determine the tornado tracks length, width, and strength.  Planes also flew over the damage paths collecting pictures and video from above.  Over the next two weeks, meteorologists will construct detailed tornado track maps from storm survey information and radar data.  As of March 16th there have been 22 confirmed tornado touchdowns from this event across the St. Louis County Warning Area, although further investigation over the coming weeks may determine a few more weak tornado tracks. Below is preliminary information that has been sent via Public Information Statements on the confirmed tornadoes.


Monroe County, MO (Paris and Monroe CIty Tornado)

Reynolds County, MO to Randolph County, IL (Chloride, Minnith, Chester, and Steelville Tornado)

Montgomery, Lincoln and Pike Counties, MO (Olney and Silex Tornado)

Jefferson County, MO to Monroe County, IL (Festus and Fults Tornado)

Callaway County, MO (Fulton Tornado)

Pike County, MO (New Hartford and Ashley Tornadoes)

Greene County, IL (Hillview and RoodHouse Tornado)

Callaway, Osage, Montgomery and Warren Counties, MO (Jonesburg Tornado)

Pike County, IL (Independence and Milton Tornado)


State of Missouri Tornado Statistics for March 11-12 2006 

Local Storm Report


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