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As of May 21, the Storm Prediction Center (SPC) has tallied 317 storm spotter reports in the United States of hail larger than 2 inches in diameter (a golf ball is 1.75 inches).If that sounds like ...
Despite the abundance of tornadoes and wind reports, most of the severe activity happened either along and south of the southern part of the high-risk area or well to the east in the slight-risk area over Alabama. Additionally, on the previous day (April 25, the first day of this sequence), a Moderate Risk was in effect simultaneously for that ...
Preliminary storm (tornadoes, severe wind and hail) reports from June 1, 1999 to present; and severe storm climatology information (SPC) Daily Severe Weather Report Archive from 1985-1999 (SPC) NCDC's searchable Storm Data database; Storm Data publication Archived 2013-02-15 at the Wayback Machine (purchase required)
Sources: SPC Storm Reports for 04/30/12, SPC Storm Reports for 05/01/12, NWS Louisville, NWS Tulsa, NWS Wilmington, ... Iowa: EF0: S of Sioux Center: Sioux
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.
On March 4, the Storm Prediction Center (SPC) issued a slight risk outlook for severe weather for a negatively tilted shortwave trough positioned over the High Plains. The outlook included the possibility of strong winds, large hail, and a 5 percent chance for tornadoes, mostly throughout southern Iowa. The next day, the SPC upped their alert ...
Hundreds of trees were knocked down at the Georgia Nature Center. [46] EF1: ... SPC Storm Reports for 03/07/09, ... Iowa: EF2: Missouri Valley area ...
On April 13, the Storm Prediction Center (SPC) outlined a broad swath of the Central United States for the potential for severe thunderstorms four days later. [2] The general threat area was further expanded on April 14, and a heightened risk was introduced from eastern Texas northward into Iowa, indicative of higher confidence of a severe weather outbreak. [3]