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EF4. 97 mph (156 km/h) 6. Tornado outbreak of April 13–16, 2012 – This was day 2 of aforementioned outbreak; it was only the second high risk to be issued on Day 2 (the day before the event; first Day 2 high risk was for April 7, 2006) and the first/only to date ever issued on the initial (0600Z) Day 2 outlook. [277]
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.
High risk convective outlook issued by the Storm Prediction center at 16:30 UTC on March 25. On March 22, the Storm Prediction Center issued a broad 15% risk contour from Eastern Texas to the Central Gulf Coast States, highlighting the potential for multiple rounds of severe storms to move through the region.
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.
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]
This is a list of meso-gamma mesoscale discussions, which are issued by the National Oceanic and Atmospheric Administration ’s Storm Prediction Center for small-scale analysis of mesoscale features, typically during high-confidence and high-impact severe weather events. [1][2][3][4][5] These can be for tornadoes believed to be at least EF2 on ...
A widespread, deadly, and historic [5] tornado outbreak affected large portions of the Midwestern, Southern and Eastern United States on March 31 and April 1, 2023, the result of an extratropical cyclone that also produced blizzard conditions in the Upper Midwest. The Storm Prediction Center (SPC) issued a rare high risk for severe weather in ...
A multi-day period of significant tornado and severe weather activity occurred across the Southern United States, Ohio Valley, and southern High Plains in mid-June 2023. Starting on June 14, tornadoes occurred in Texas, Alabama, and Georgia, where they caused large-scale damage to trees and structures. [3]