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EF1 tornado in Huron County, Ohio

Tornado May 25, 2011 · Huron County, Ohio

EF1
Rating
8.0 mi
Path length
50 yd
Path width
$250K
Damage as recorded
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 50 yards (0.03 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What EF1 means. On the Enhanced Fujita scale, EF1 is moderate damage: roofs badly stripped, mobile homes pushed off foundations or overturned, windows broken, consistent with estimated gusts of 86–110 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

An EF1 tornado touched down in a cemetery on the southeast side of Monroeville. This tornado then continued east on the ground for about eight miles before lifting near the intersection of Tiger Road and North Greenwich Milan Road on the southeast side of Norwalk. The path was parallel and just south of U.S. Route 20 for several miles. Around a dozen homes and businesses were damaged by this tornado. A couple of the buildings lost large sections of roofing with some of damage caused by fallen trees. The tornado also leveled a large barn as it crossed Halfway Road. Several dozen trees were also downed along the damage path which was no more than 50 yards in width.

The wider storm

Between May 25th and May 26th heavy rainfall occurred as a warm front lifted north across the area. A strong southerly flow, ahead of a cold front, transported very moist air through Tennessee, Kentucky and into Ohio on the 25th. Surface dew points were in the 60s. Wave after wave in the mid and upper levels helped trigger widespread showers, with embedded thunderstorms. High rainfall rates of over an inch per hour occured with the stronger storms, resulting in widespread flood warnings across Northern Ohio. The showers continued into the evening hours, and then reformed early on the 26th. By this point the ground was saturated and streams and creeks were running high. Additional storms compounded lingering flooding conditions, necessitating a second round of widespread flood warnings. Numerous state and local routes in the area were closed because of the quickly rising and flowing water.

Began near Monroeville (41.2343, -82.6909).

Other tornadoes from the same storm system

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

Source: NOAA Storm Events Database, event 312409. Narratives are written by the National Weather Service forecast office that issued the report.

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