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The Storm Prediction Center's Day 1 convective outlook for May 21, 2024, issued at 1300Z, indicating a moderate risk for severe weather over much of Iowa and nearby parts of Wisconsin, Illinois, Missouri, and southeastern Minnesota.
The 2013 Washington, Illinois tornado was an unusually powerful and violent tornado that caused catastrophic damage to the city of Washington and several farmsteads in rural central Illinois during the early afternoon of November 17, 2013. The tornado resulted in three fatalities and injured 125 people. This tornado was one of the two violent ...
Date/Time Thumbnail Dimensions User Comment; current: 07:01, 22 May 2024: 815 × 555 (34 KB): Ks0stm {{Information |Description=Storm Prediction Center's Day 1 convective outlook for May 21, 2024, issued at 1300Z, indicating a moderate risk for severe weather over much of Iowa and nearby parts of Wisconsin, Illinois, Missouri, and southeastern Minnesota.
High risk convective outlook issued by the Storm Prediction center at 13:00 UTC on May 6. Starting April 30, the Storm Prediction Center noted that certain models, including the ECMWF, forecasted a multi-day period of high instability and supportive wind shear across the Southern and Central Plains, [10] and by May 1, a 15% risk was added across Nebraska, Kansas, Oklahoma, and northern Texas. [11]
The Storm Prediction Center issues convective outlooks (AC), consisting of categorical and probabilistic forecasts describing the general threat of severe convective storms over the contiguous United States for the next six to 192 hours (Day 1 through Day 8). These outlooks are labeled and issued by day, and are issued up to five times per day.
Throughout the evening hours of April 9, 2015, an extremely violent and long-lived multiple-vortex tornadotore through the communities near Rochelleand in Fairdale, Illinois. Part of a larger severe weather event that impacted the Central United States, the tornado first touched down in Lee Countyat 6:39 p.m. CDT (23:39 UTC).
An observation from the National Weather Service Chicago, Illinois at Lewis University Airport, taken at around 4z (11 p.m. CDT), revealed MUCAPE values of 1556 J/kg, as well as extreme storm-relative helicity values of 644 m 2 /s 2 at 0–1 kilometers and 857 m 2 /s 2 at 0–3 kilometers, where storm-relative values of helicity above 150 m 2 ...
The Storm Prediction Center's Day 1 convective outlook for May 21, 2024, issued at 1300Z, indicating a moderate risk for severe weather over much of Iowa and nearby parts of Wisconsin, Illinois, Missouri, and southeastern Minnesota.