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  2. 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.

  3. Storm Prediction Center - Wikipedia

    en.wikipedia.org/wiki/Storm_Prediction_Center

    Convective outlooks are issued by the Storm Prediction Center in Zulu time (also known as Universal Coordinated Time or UTC). [29] The categories at right refer to the risk levels for the specific severe weather event occurring within 25 miles (40 km) of any point in the delineated region, as described in the previous section.

  4. Severe weather terminology (United States) - Wikipedia

    en.wikipedia.org/wiki/Severe_weather_terminology...

    The Storm Prediction Center (SPC) issues Day 1, Day 2, and Day 3 Convective Outlooks depicting forecast areas of general (non-severe) and severe thunderstorm threats across the contiguous United States, along with a text narrative discussion consisting of a plain-language summary of the threat type(s) and timing focused on areas of highest risk ...

  5. List of Storm Prediction Center mesoscale discussions on ...

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

    Convective mesoscale discussions are issued by the National Oceanic and Atmospheric Administration’s Storm Prediction Center based on the National Weather Center in Norman, Oklahoma. [ 1 ] [ 2 ] One type of mesoscale discussion is a meso-gamma mesoscale discussion , which are for tornadoes believed to be at least EF2 on the Enhanced Fujita ...

  6. List of Storm Prediction Center extremely critical days

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

    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 ...

  7. Tornado outbreak sequence of May 19–27, 2024 - Wikipedia

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

    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.

  8. File:May 21, 2024 1300Z Storm Prediction Center Day 1 ...

    en.wikipedia.org/wiki/File:May_21,_2024_1300Z...

    Description: 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.

  9. File:May 16, 2024 2000Z Storm Prediction Center Day 1 ...

    en.wikipedia.org/wiki/File:May_16,_2024_2000Z...

    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.