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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.
The Storm Prediction Center issues daily outlooks denoting the risk for severe weather and wildfires for specific regions in the United States. For severe weather, which includes the risk for thunderstorms, tornadoes, hail, and straight-line winds, there are five risk levels indicating the probability for these hazards: marginal, slight, enhanced, moderate, and high.
19. Tornado outbreak of April 27–30, 2014 – This was a first day of the aforementioned outbreak. A small high-risk area was issued at the 2000Z outlook that included the cities of Little Rock, Camden, and Danville for a 30% probability of significant tornadoes.
Progression of a well-anticipated extremely critical event across the Central Plains on March 6, 2017. This event produced wildfires that burned 1,200,000 acres of land, and killed seven people. An extremely critical fire weather event is the greatest threat level issued by the NWS Storm Prediction Center (SPC) for wildfire events in the United ...
This image is in the public domain because it was stored on the web servers of the U.S. Storm Prediction Center, which is part of National Weather Service. NWS-created images are automatically public domain in the U.S. since the NWS is a part of the U.S. government.
File:SPC's Day 1 convective outlook issued at 6-00 UTC on March 25, 2021.gif. File. File history. File usage. Size of this preview: 800 × 545 pixels. Other resolutions: 320 × 218 pixels | 640 × 436 pixels | 815 × 555 pixels. Original file (815 × 555 pixels, file size: 31 KB, MIME type: image/gif)
File. File history. File usage. Global file usage. No higher resolution available. SPC_June_29,_2020_0100_UTC_outlook_map.gif (582 × 408 pixels, file size: 160 KB, MIME type: image/gif, looped, 7 frames, 3.5 s) Wikimedia Commons Commons is a freely licensed media file repository. .
2011 Super Outbreak. The 2011 Super Outbreak was the largest, costliest, and one of the deadliest tornado outbreaks ever recorded, taking place in the Southern, Midwestern, and Northeastern United States from April 25 to 28, 2011, leaving catastrophic destruction in its wake.