A Pacific storm is bringing areas of low elevation rain, moderate to heavy mountain snow, and high winds to the Northwest. Strong Santa Ana winds and very dry conditions are producing elevated to critical fire weather conditions in southern California. Isolated strong to severe thunderstorms are possible through early Wednesday morning across parts of northeast Texas into western Tennessee. Read More >
The data for these pages are decoded from the historical tornado data archive at the Storm Prediction Center. The only modifications to this data were supplemental location information from Storm Data and changes to information where a coding error was detected in the archive data files when compared to Storm Data, which is the official record of severe weather events, and is described in NOAA Tech Memo NWS SR-209 (Speheger, D., 2001: "Corrections to the Historic Tornado Database"). Tornado data before 1950 (where available) are from records kept at the National Weather Service Forecast Office in Norman, OK. The data can be accessed by using the drop-down menus or map above.
The tables contain the following information:
Note about tornadoes before 1950. Records from the National Weather Service Office in Norman were used to include Oklahoma tornadoes before 1950. Since much of this data was collected through research in the late 1940's and not recorded in real time, this pre-1950 list is known to be incomplete. This listing is not meant to document all probable tornadoes in the state (or territories) before 1950 or compete with more complete works such as "Significant Tornadoes 1680-1991" by Grazulis, but to list the tornadoes recorded in this office.