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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.
A tornado watch was issued by the SPC for areas near and along the Nebraska–Iowa border region at 11:10 a.m. CDT in anticipation of these changes. At 1:10 p.m. CDT, the SPC issued a tornado watch flagged as a particularly dangerous situation for much of Iowa and parts of surrounding states, including an 80% likelihood of a significant tornado ...
2021 Western Kentucky tornado: EF4 2021: December 10: 2021 Western Kentucky tornado: EF4 2021: December 10: Bowling Green, Kentucky tornado: EF3 2021: December 10: Park City–Cave City–Horse Cave, Kentucky tornado: EF2 2022: March 21: Gilmer–Ore City–Linden, Texas tornado & Mapleton–Crockett, Texas tornado: EF2 2022: May 12
A high risk severe weather event is the greatest threat level issued by the Storm Prediction Center (SPC) for convective weather events in the United States. On the scale from one to five, a high risk is a level five; thus, high risks are issued only when forecasters at the SPC are confident of a major severe weather outbreak.
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 States. On the scale from one to three, an extremely critical is a level three; thus, these outlooks are issued only when forecasters at the SPC are confident of extremely dangerous wildfire ...
National Severe Storms Laboratory. The National Severe Storms Laboratory ( NSSL) is a National Oceanic and Atmospheric Administration (NOAA) weather research laboratory under the Office of Oceanic and Atmospheric Research. It is one of seven NOAA Research Laboratories (RLs). [1]
A large and dynamic storm system bought widespread impacts across much of the United States at the end of February 2023. In the Western United States, heavy snow, hail, and gusty winds affected many areas. This led to the partial closure of several major highways, including I-205 in the Portland, Oregon metropolitan area, as well as numerous ...
A tornado watch was issued by the SPC for areas near and along the Nebraska–Iowa border region at 11:10 a.m. CDT in anticipation of these changes. At 1:10 p.m. CDT, the SPC issued a tornado watch flagged as a particularly dangerous situation for much of Iowa and parts of surrounding states, including an 80% likelihood of a significant tornado ...