
Updated 10 May 2013 to add new information from April 2013 Updated 2 May 2013 to correct typo on date of previous low tornado count The 12-month period from May 2012 to April 2013 was…
Updated 10 May 2013 to add new information from April 2013 Updated 2 May 2013 to correct typo on date of previous low tornado count The 12-month period from May 2012 to April 2013 was…
UPDATE (14-Aug-2012): Graph corrected to indicate 2006 as previous 15 Apr-31 Jul minimum. The 2012 tornado season in the United States got off to a quick start with well-above average numbers in January, February, and…
In May 2012, there were no tornado deaths in the United States. How unusual was that? We can look at the record of tornado deaths, discussed here, dating back to 1875. The last time there…
Information on the 10 May 2010 tornado outbreak in Oklahoma and Kansas
Preliminary information on the long-track tornado that went from eastern Louisiana across much of Mississippi. 1. It had a path length of at least 97 miles. Over the last 40 years, we’ve averaged about one…
A late tornado report has been received, so there’s now 1 tornado in the database for February 2010.
One of the interesting questions that comes up every year is how to compare a tornado season with previous seasons. In 2009, that question has come up particularly in light of the quiet conditions lately.…
We frequently get asked, “how many…” occur each year. One of the most common of those questions involves tornado deaths. Here’s the raw data.
The relationship between the preliminary and final counts of tornadoes is not as straightforward as it seems.
The question of how rare an event the Oklahoma tornadoes of 10 February 2009 is very difficult to answer.