Cincinnati Tornado of April 1999

Infobox tornado outbreak|name=Cincinnati Tornado of April 1999
date=April 8-9, 1999
fujitascale=F4
duration= 30 hours
tornadoes=54 confirmed
total damages (USD)=$82 million
total fatalities=6, including 4 in the Cincinnati Metro Area
areas affected= Midwestern United States - Ohio River Valley

The Cincinnati Tornado of April 1999 struck in the early morning hours on April 9, 1999. It killed four people in the Blue Ash and Montgomery, Ohio areas, making it the deadliest tornado to hit the Tri-State since the 1974 Super Outbreak storm killed five in the Sayler Park area. The entire outbreak which started from Nebraska on April 8 produced at least 54 tornadoes across the Midwestern United States and Ohio Valley.

ynopsis

The storms were spawned by a low pressure system and associated frontal boundaries which began moving eastward across the Midwestern United States the previous day.

The storms of April 9 originated over Illinois and Indiana. Around 4:15 a.m. EDT, what would later be known as the Blue Ash-Montgomery tornado first touched down in Rexville, Indiana. It moved northeast and by the time it reached Benham, Indiana, it was rated as an F3 on the Fujita Scale. At 4:45, an F0 rated tornado touched down near Aurora, Indiana.

At approximately 4:54 a.m., the storm crossed the Ohio border and entered the Addyston area of Cincinnati's West Side. The storm here was thought to be only a gustnado. At 5:10, it again started to rotate and touched down west of Interstate 71 causing one fatality. In the next five minutes, three more deaths occurred as the storm crossed northeastern Hamilton and southern Warren Counties, Ohio. The storm at this point was rated as an F4, the second highest intensity on the Fujita scale. Finally, as it crossed Clinton County, Ohio, it created a final burst of straightline winds before dying down.

Other tornadoes

Several strong tornadoes touched down in Illinois, Iowa and Missouri causing extensive damage to many structures on April 8. Two tornadoes in Iowa were rated F4. While the outbreak started in Nebraska at around 10:00 AM CST. The last tornado touched down on the afternoon of April 9 in Virginia.

Tornado table

Confirmed tornadoes

April 8 event

April 9 event

ee also

* List of North American tornadoes and tornado outbreaks
* Surface weather analysis

External links

* [http://www.shorstmeyer.com/tornadoes/1999/1999.html April 9, 1999 tornado] – WKRC-TV meteorologist Steve Horstmeyer
* [http://www.cincinnati.com/tornado/ Tornado in Cincinnati] – "Enquirer" and "Post" coverage
* [http://www.erh.noaa.gov/er/iln/4999.htm April 9, 1999 Severe Weather Outbreak] – National Weather Service, Wilmington, Ohio Office