Tracks of the 50 mesocyclones and multiple tornado vortex signatures (denoted by inverted red triangles) identified by the NWS Office in Tallahassee, Florida between 1:00 p.m. on September 15 to 9:00 a.m. on September 16.
Type
Tornado outbreak
Duration
September 15–18, 2004
Tornadoes confirmed
120[nb 1] (Record for a continuous outbreak in September)
Max. rating1
F3 tornado
Duration of tornado outbreak2
2 days, 14 hours, 17 minutes[nb 2]
Fatalities
7 total
Damage
$96.9 million[nb 3]
Part of Hurricane Ivan and the tornado outbreaks of 2004
1Most severe tornado damage; see Fujita scale 2Time from first tornado to last tornado
The Hurricane Ivan tornado outbreak was a three-day tornado outbreak that was associated with the passage of Hurricane Ivan across the Southern United States starting on September 15, 2004, across the Gulf Coast states of Alabama and Florida as well as southern Georgia before ending in the Middle Atlantic Coast on September 18.
The outbreak killed 7 people and injured dozens of others across several states from Florida to Pennsylvania. The hurricane itself killed at least 90 people from the US to the eastern Caribbean Islands. Overall it produced 120 tornadoes surpassing the record of 117 that was previously held by Hurricane Beulah during the 1967 Atlantic hurricane season.[4] Ivan also produced 16 more tornadoes than Hurricane Frances which struck most of the same regions (the tornado outbreak) about ten days earlier. The tornado outbreak is also the largest in Virginia history.[5]
^ abCite error: The named reference NCDC was invoked but never defined (see the help page).
^Cite error: The named reference NWSTallahassee was invoked but never defined (see the help page).
^Thomas P. Grazulis; Bill McCaul (2011). "List of Known Tropical Cyclones Which Have Spawned Tornadoes". Tornado History Project. Retrieved November 6, 2011.
^Grazulis, Thomas P.; Grazulis, Doris (27 February 2018). "Top 25 Tornado-Generating Hurricanes". The Tornado Project. St. Johnsbury, Vermont: Environmental Films. Retrieved 8 November 2021.
^"Hurricane Ivan, Virginia's largest tornado outbreak – September 17, 2004". The Washington Post. 2013-09-17. Archived from the original on 2021-02-02.
Cite error: There are <ref group=nb> tags on this page, but the references will not show without a {{reflist|group=nb}} template (see the help page).
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