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…
Author: Harold Brooks
The Tornado “Drought” of 2012
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…
No Tornado Deaths in May 2012
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…
10 May 2010 tornado outbreak
Information on the 10 May 2010 tornado outbreak in Oklahoma and Kansas
Some brief notes on the 24 April 2010 long-track tornado
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…
One tornado in February 2010 (UPDATED)
A late tornado report has been received, so there’s now 1 tornado in the database for February 2010.
The “shape” of the 2009 tornado season
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.…
US Annual Tornado Death Tolls, 1875-present
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 preliminary and final tornado reports
The relationship between the preliminary and final counts of tornadoes is not as straightforward as it seems.
The rarity of the Oklahoma tornadoes of 10 Feb revisited
The question of how rare an event the Oklahoma tornadoes of 10 February 2009 is very difficult to answer.