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EF2 tornado in Tippecanoe County, Indiana

Tornado November 17, 2013 · Tippecanoe County, Indiana

EF2
Rating
41.3 mi
Whole path
75 yd
Path width
$931K
Damage as recorded

NOAA records this tornado county by county. Its path ran through Tippecanoe County → Tippecanoe County → Tippecanoe County → Clinton County → Carroll County → Cass County; the totals above are for the whole tornado.

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 75 yards (0.04 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What EF2 means. On the Enhanced Fujita scale, EF2 is considerable damage: roofs torn off well-built houses, mobile homes destroyed, large trees snapped or uprooted, consistent with estimated gusts of 111–135 mph. The rating comes from a survey of the worst damage after the storm, not from a wind measurement, so it says as much about what the tornado hit as about how strong it was.

What the National Weather Service wrote

At 1452EST, this EF-2 tornado touched down 3 miles northwest of Romney. The Southwestern Elementary and Middle School to the northwest of Romney both sustained significant damage to their structures. The gymnasium at the middle school had a wall blown out, with roof damage to both schools. Some other homes sustained roof and structural damage as well. Trees were downed too. This tornado lifted 7 miles south of Lafayette at 1455EST.

The wider storm

A large outbreak of severe weather took place on November 17, 2013. In Indiana alone there were 29 tornadoes, with dozens more in other states. In central Indiana the strongest tornado was rated an EF-3. There were 8 EF-2 tornadoes, 6 EF-1 tornadoes, and 1 EF-0 tornado in central Indiana. This number of tornadoes for the entire state is the largest outbreak for November in recorded history for Indiana, and the third largest outbreak in state history for any month (June 2, 1990 is first with 37 tornadoes, April 19, 2011 is second with 29 tornadoes).

A potent weather system moved into the Ohio Valley during the afternoon of November 17, 2013. The setup became ideal for severe weather, including multiple tornadoes. A strong jet stream was approaching central Indiana during the afternoon of November 17. An upper trough was approaching the area as well. Not far off the surface, strong winds were flowing north from the Gulf of Mexico. Speeds at 500 meters over Indiana at 3:00 PM were over 50 mph. This system's setup provided the area with plenty of instability for thunderstorms to form. The turning of the winds with height, set up by the approaching upper trough and winds ahead of the surface cold front, set the stage for the potential for tornadoes. The effective storm relative helicity values, by mid-afternoon,were 500 to 700 m2/s2 across central Indiana and were extremely high for November. As a result of this setup, numerous thunderstorms developed across Illinois and quickly became severe. These storms produced numerous tornadoes across Illinois. The strong winds aloft caused the storms to move quickly into Indiana, where additional tornadoes and severe thunderstorms developed.

Began near South Raub (40.3013, -86.9467).

Other tornadoes from the same storm system

13 more tornadoes the National Weather Service filed under this storm episode.

Source: NOAA Storm Events Database, event 482746. Narratives are written by the National Weather Service forecast office that issued the report.

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