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The Storm Prediction Center (SPC) is a US government agency that is part of the National Centers for Environmental Prediction (NCEP), operating under the control of the National Weather Service (NWS), [1] which in turn is part of the National Oceanic and Atmospheric Administration (NOAA) of the United States Department of Commerce (DoC). [2]
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.
As a file created by an employee of the NWS (formerly USWB) in the course of their official duties, whether hosted on weather.gov; on an NWS sub-branch website including: cpc.ncep.noaa.gov, nhc.noaa.gov, swpc.noaa.gov, spc.noaa.gov, tsunami.gov, wpc.ncep.noaa.gov; on an NWS or sub-branch social media channel (such as Facebook, X or YouTube)
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 ...
SPC day 1 convective outlook for April 1, 2024, at 20Z. On March 28, the Storm Prediction Center (SPC) first delineated a risk of organized severe weather across the Central and Southern Plains, as well as the Mississippi and Ohio River valleys for the beginning of April. [5]
As of May 21, the Storm Prediction Center (SPC) has tallied 317 storm spotter reports in the United States of hail larger than 2 inches in diameter (a golf ball is 1.75 inches).If that sounds like ...
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 ...
Date/Time Thumbnail Dimensions User Comment; current: 07:01, 22 May 2024: 815 × 555 (34 KB): Ks0stm {{Information |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.