Click for full image --->
Tornado Reports |
Hail Reports |
Wind Reports
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Plot of the annual running total of U.S. tornadoes. (Click on image for a full resolution version.)
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Plot of the annual running total of tornado reports compared to inflation adjusted values. (Click on graph for a full description.)
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| 2009 SPC Watch Maps |
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2009 Tornado and Severe Watch Count by County and Anomaly
(Click for full-resolution version.)
2009 Tornado Watch Count by County.
(Click for full-resolution version.)
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2009 Severe Thunderstorm Watch Count by County.
(Click for full-resolution version.)
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| SPC Average Annual Watch Frequency Maps |
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Average number of tornado watches per year (1999-2008).
(Click for full-resolution version.)
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Average number of severe thunderstorm watches per year (1999-2008).
(Click for full-resolution version.)
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| SPC Tornado and Severe Weather Statistical Products on AWIPS |
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Monthly Tornado Statistics are maintained in the AWIPS product STAMTS. Use this product to
find out how many tornadoes have occured so far this year and how
this year compares to past years.
Killer Tornado Statistics are listed in the AWIPS product STATIJ. Use this product for
information about killer tornadoes this year and in the past.
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| Severe Weather Database Files (1950-2007) |
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The table below provides links to comma separated value (.csv) files for tornado, hail, and damaging wind data as compiled in Storm Data.
Tornado reports exist back to 1950 while hail and damaging wind reports date from 1955. The full datasets are very large, especially hail and wind. To facilitate quicker downloads these data have been parsed by decade (or 1/2 decade in the case of wind/hail data in the 1950s and 2000s).
This document describes the format of the .csv files. Note! Data for 2008 is now available in the format specified in the document. However, state numbering and sequence numbering for tornado data remains preliminary.
Location Codes for Storm data here.
Map of State FIPS Numbers here.
Text list of County FIPS Numbers here.
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| SPC Severe GIS Page |
U.S. map depicting tornado tracks colored by EF-Scale.
(Click to go to SPC Severe GIS Page.)
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