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  2. Storm Prediction Center - Wikipedia

    en.wikipedia.org/wiki/Storm_Prediction_Center

    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.

  3. List of Storm Prediction Center high risk days - Wikipedia

    en.wikipedia.org/wiki/List_of_Storm_Prediction...

    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.

  4. Tornado outbreak of May 6–8, 2024 - Wikipedia

    en.wikipedia.org/wiki/Tornado_outbreak_of_May_6...

    High risk convective outlook issued by the Storm Prediction center at 13:00 UTC on May 6 May 6. On May 6, a tornado-driven high risk was issued by the Storm Prediction Center across central, north central, and, later, northeastern Oklahoma and south central Kansas. However, throughout the day, only weak tornadoes occurred across the Plains.

  5. Tornado outbreak of March 5–7, 2022 - Wikipedia

    en.wikipedia.org/wiki/Tornado_outbreak_of_March_5...

    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 ...

  6. List of deadliest Storm Prediction Center days by outlook ...

    en.wikipedia.org/wiki/List_of_deadliest_Storm...

    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.

  7. Early-March 2023 North American storm complex - Wikipedia

    en.wikipedia.org/wiki/Early-March_2023_North...

    An intense low-pressure system produced widespread impacts across the United States in early March 2023. Additionally, an outbreak of 35 tornadoes affected 12 states from the Southern United States to the Great Lakes. In all, the storm system killed 13 people due to flooding and strong winds. At least 17 other people were injured.

  8. List of Storm Prediction Center extremely critical days

    en.wikipedia.org/wiki/List_of_Storm_Prediction...

    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 ...

  9. Tornado outbreak sequence of June 14–19, 2023 - Wikipedia

    en.wikipedia.org/wiki/Tornado_outbreak_sequence...

    Meteorological synopsis NWS Tornado outlooks from June 14–19 overlaid. On June 12, the Storm Prediction Center (SPC) issued a level 3/enhanced risk of severe weather for June 14 across the Mid-South and eastern Gulf Coast states, and also highlighted the threat for significant severe weather across the risk area.

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