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EF3 tornado in Macoupin County, Illinois

Tornado April 19, 2011 · Macoupin County, Illinois

EF3
Rating
4.3 mi
Path length
200 yd
Path width
2
Injuries
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 200 yards (0.11 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What EF3 means. On the Enhanced Fujita scale, EF3 is severe damage: whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, consistent with estimated gusts of 136–165 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

The path of this tornado was a very curved one as it initially tornado touched down about 2.5 miles west of Girard, Illinois, on Emerson Airline Road. It caused extensive damage to a couple of houses in this location. It then travelled to the northeast crossing Henry Road, north of the intersection with Emerson Airline Road, and damaging 3 farmsteads. One home was destroyed and another home sustained moderate damage, trapping the residents in the basement until they could be rescued. Also, several barns were destroyed in this area. The tornado began to travel on a more easterly course, damaging or destroying several farmsteads on Neff Road. Numerous outbuildings were destroyed in this area and one house was destroyed. As it approached Pleasant Hill Road approximately 1.2 miles northwest of Girard, it caused major damage to a brick home and destroyed all of the outbuildings. The tornado continued to travel to the east, destroying a farm about a mile north of town on Illinois Route 4. Several cows were killed in this location. Then the tornado began to curve back to the southeast, crossing Prose Road about half a mile south of the intersection with Substation Road. In this location it caused extensive damage to a brick home with most of the exterior walls destroyed but with the interior wall structure intact. This damage was rated EF3. The tornado continued to the southeast. It caused moderate roof damage to a house on Kimes Road near intersection with Adams Road. The tornado then lifted and dissipated on Adams Road after hitting one last farmstead and causing minor damage. Several farms sustained damage along the path of the tornado with many of the houses that were damaged rated EF2 with large portions of the roofs badly damaged. Numerous outbuildings were either destroyed or sustained major damage along this track as well. Also, about 20 power poles were blown down along Illinois Route 4 just north of town. The average path width of the tornado was 150 yards with a maximum width of 200 yards. The highest rating of the damage was EF3 and with peak wind speeds of 150 mph. Two miles west of Girard, two people heading for the basement to seek shelter from the tornado, sustained minor cuts and bruises. Because the path of the tornado was curved the actual total path length of the tornado was 5.1 miles, not 4.3 miles as displayed in the main header for this event.

The wider storm

A warm front was lifting northward through the region, triggering numerous showers and thunderstorms. Some of the storms produced tornadoes as well as a lot of large hail. There were 6 tornadoes with this event, including an EF3.

Began near Girard (39.4427, -89.8250).

Other tornadoes from the same storm system

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

Source: NOAA Storm Events Database, event 314471. Narratives are written by the National Weather Service forecast office that issued the report.

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