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Storm Prediction Center WCM Page
Intro | 2009 Tornadoes | Tornado Graphs & Charts | SPC Watch Frequency Maps | SPC AWIPS Products | Data | SVR GIS
Warning Coordination Meteorologist's Introduction

Welcome to the WCM Page for the SPC. This page has charts of the latest preliminary severe storm reports, annual summaries, and links to comma-separated-value (csv) data files from the SPC severe weather database back to 1950. As time allows, this page may occasionally serve as a place for preliminary severe weather event assessments.

For additional insight into severe thunderstorms and tornado reports, the SPC and the National Severe Storms Laboratory are collaborating on posting non-operational "feature" content to the U.S. Severe Weather Blog, hosted by NOAA Public Affairs in Norman, Oklahoma.

Greg Carbin
Warning Coordination Meteorologist
NWS/NCEP Storm Prediction Center

2009 Tornadoes
Chart of 2009 Tornadoes
Map of 2009 Tornadoes (Colored by EF-scale rating.)
(Click for full-resolution version.)
Daily Counts and Annual Running Trend (Updated Frequently)
Click for full image --->    Tornado Reports       |       Hail Reports       |       Wind Reports
U.S. Annual Tornado Trends
Plot of the annual running total of U.S. tornadoes. (Click on image for a full resolution version.)

Annual Tornado Running Totals
Plot of the annual running total of tornado reports compared to inflation adjusted values. (Click on graph for a full description.)

2009 SPC Watch Maps
Watch Anomalies
2009 Tornado and Severe Watch Count by County and Anomaly (Click for full-resolution version.)
2009 Tornado Watches
2009 Tornado Watch Count by County. (Click for full-resolution version.)
2009 Thunderstorm Watches
2009 Severe Thunderstorm Watch Count by County. (Click for full-resolution version.)
SPC Average Annual Watch Frequency Maps
Tornado Watches
Average number of tornado watches per year (1999-2008). (Click for full-resolution version.)
Severe Thunderstorm Watches
Average number of severe thunderstorm watches per year (1999-2008). (Click for full-resolution version.)
SPC Tornado and Severe Weather Statistical Products on AWIPS

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.


Severe Weather Database Files (1950-2007)

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.


TORNADO
HAIL
DAMAGING WIND
2008_torn.csv (0.18 mb)
2008_hail.csv (1.7 mb )
2008_wind.csv (1.7 mb )
2005-2007_torn.csv (0.25 mb)
2005-2007_hail.csv (4 mb )
2005-2007_wind.csv (4 mb )
2000-2004_torn.csv (0.7 mb)
2000-2004_hail.csv (6 mb)
2000-2004_wind.csv (6 mb)
90-99_torn.csv (1 mb)
90-99_hail.csv (6 mb)
90-99_wind.csv (8 mb)
80-89_torn.csv (0.75 mb)
80-89_hail.csv (2.5 mb)
80-89_wind.csv (3.5 mb)
70-79_torn.csv (0.82 mb)
70-79_hail.csv (1 mb)
70-79_wind.csv (1.6 mb)
60-69_torn.csv (0.65 mb)
60-69_hail.csv (0.67 mb)
60-69_wind.csv (0.90 mb)
50-59_torn.csv (0.46 mb)
55-59_hail.csv (0.20 mb)
55-59_wind.csv (0.28 mb)

Location Codes for Storm data here.
Map of State FIPS Numbers here.
Text list of County FIPS Numbers here.

SPC Severe GIS Page
2007 Tornado Tracks
U.S. map depicting tornado tracks colored by EF-Scale. (Click to go to SPC Severe GIS Page.)




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