Illinois State Water Survey Illinois State Climatologist

Tornadoes Strike Illinois in November

Severe weather, including   four tornado reports, struck northern Illinois on November 23, 2010. According to NOAA’s Storm Prediction Center: a tornado was spotted 4 miles east of Loves Park (Boone County); power lines down and debris were reported; a second tornado report from 3 miles east of Loves Park (probably the same tornado) caused […]

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June 5 Tornado Outbreak in Illinois

SPC storm reports for June 5, 2010

A large tornado outbreak occurred in Illinois on June 5. The NOAA Storm Prediction Center has 31 preliminary damage reports for the state (see below). In some cases a single tornado generated multiple damage reports  as it moves cross-country. At this time there appears to have been 15 confirmed tornadoes involved. NWS offices conducted extensive […]

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Central IL tornado climatology updated

Tornado tracks, Champaign County, 1950-2009.

The NWS office in Lincoln, IL has updated their tornado climatology for central and southeastern Illinois for the period 1950-2009. During this period McLean County reported an incredible 100 tornadoes, the highest for any county in central Illinois. However, McLean County is the biggest county in this area (a bigger county means a bigger target). […]

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