Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Scattered strong to severe thunderstorms are possible across parts of the Northeast U.S. on Thursday. Damaging wind, hail, and a tornado or two are possible. Read More >

St. Louis, Missouri

WFO St. Louis

County Warning Area
Tornado Database

Click HERE for the regional tornado database.

This database contains all known tornadoes that have occurred in the NWS St. Louis County Warning Area (CWA) from 1805 to present and is updated on a regular basis. Statistics previous to 1950 were taken from an extensive database of killer and significant tornadoes (F2-F5) compiled by Tom Grazulis (1993). After 1950, all tornadoes were gathered from either the Storm Prediction Center or the National Centers for Environmental Information Database. Tornado intensity is determined by using the F/EF-Scale and the time is in Central Standard Time (CST).

Questions?

If you have any questions or comments, please contact: nws.stlouis@noaa.gov

Data Sources:

Grazulis, Thomas P. Significant Tornadoes 1680-1991. St. Johnsbury, VT: Environmental Films, 1993.

Grazulis, Thomas P. Significant Tornadoes Update 1992-1995. St. Johnsbury, VT: Environmental Films, 1997

National Oceanic and Atmospheric Administration, National Centers For Environmental Information. Website: https://www.ncdc.noaa.gov/stormevents/

Storm Prediction Center's Tornado Database: 1950-2013, www.spc.noaa.gov/archive

Acknowledgement:

We would like to to thanks Mr. Anthony Cavallucci, the Warning Coordination Meteorologist in

NWS Morristown, TN for his assistance in setting up this database.

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