List of Storm Prediction Center extremely critical days
ID: list-of-storm-prediction-center-extremely-critical-days
The Storm Prediction Center (SPC) issues forecasts and outlooks for severe weather events in the United States, including severe thunderstorms and tornadoes. An "Extremely Critical Day" is a term used by the SPC to indicate certain days with a high potential for severe weather, particularly in relation to the setup of atmospheric conditions that could lead to significant severe weather events, including widespread tornadoes.
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