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The Storm Prediction Center employs a total of 43 personnel, including five lead forecasters, ten mesoscale/outlook forecasters, and seven assistant mesoscale forecasters. [18] Many SPC forecasters and support staff are heavily involved in scientific research into severe and hazardous weather.
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 ...
7:54am CDT #SPC Day1 Outlook Slight Risk: across parts of the central High Plains, Southeast U.S. and Mid-Atlantic https: ... — NWS Storm Prediction Center (@NWSSPC) June 16, 2023.
High risk convective outlook issued by the Storm Prediction center at 13:00 UTC on May 6. Starting April 30, the Storm Prediction Center noted that certain models, including the ECMWF, forecasted a multi-day period of high instability and supportive wind shear across the Southern and Central Plains, [10] and by May 1, a 15% risk was added across Nebraska, Kansas, Oklahoma, and northern Texas. [11]
In this outlook, the SPC discussed the presence of very high CAPE values reaching into the 1,000–1500 J/kg range, wind shear of more than 60 kt, and strong helicity of around 400 m 2 /s 2, which aided the sustainment of supercells. Two distinct areas were given a 15% hatched risk for significant tornadoes.
SPC's Day 1 convective outlook for May 16, 2024, issued at 2000Z, indicating an enhanced risk for severe weather from southeast Texas into southwest Louisiana. On May 14, the Storm Prediction Center (SPC) outlined a level 2/Slight risk for severe weather across portions of central and northern Texas. [11]
The Storm Prediction Center’s Severe Weather Outlook for March 24, 2023. Farther to the east across the lower Mississippi River Valley, a more substantial threat for severe weather unfolded. On March 22, the SPC issued a level 3/Enhanced risk of severe weather across portions of Louisiana, Arkansas, and Mississippi, for supercell ...