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EF1 tornado in Tompkins County, New York

Tornado April 28, 2011 · Tompkins County, New York

EF1
Rating
2.1 mi
Path length
150 yd
Path width
$125K
Damage as recorded
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 150 yards (0.09 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

The tornado touched down in a forest off of Jersey Hill Road, northwest of the town of Danby. Numerous pine trees were uprooted and snapped in this forest. The tornado tracked from southwest to northeast, snapping numerous pines as it crossed Comfort Road. A metal outbuilding was completely collapsed and a barn across the street received roof damage, with debris lofted into the trees.

The tornado continued off to the northeast toward the intersection of Beardsley Lane and Danby Road. One home sustained damage when a tree collapsed onto the roof and a window was blown out. Surrounding homes saw numerous trees snapped or uprooted. A small branch was propelled and impaled into a car windshield.

A homeowner at the intersection of Beardsley Lane and Danby Road had a working anemometer at the time of the tornado. At 1:44 am, a wind gust to 90.3 mph was recorded. No additional tornado damage was noted as the storm headed off to the northeast.

The wider storm

A significant severe weather outbreak developed across central New York as a storm system moved east from the Great Lakes. First, showers and thunderstorms developed early in the evening on the 27th, as an upper level disturbance approached the region. Two of the more significant storms included one supercell that produced a tornado in Steuben county, and a bowing line segment that caused tree and structural damage across Steuben, Chemung and Schuyler counties. Elsewhere across central New York, storms caused scattered wind damage and heavy rain.

After a brief break in the late evening, mini super cells developed overnight ahead of a cold front. Several tornadoes and severe thunderstorms developed between about 1:30 a.m. and 6 a.m., with many reports of damage. Most of the tornadoes were EF1 and EF2. Significant flash flooding also transpired during the overnight hours.

Began near Newfield Skyhook Arp (42.3700, -76.5200).

Other tornadoes from the same storm system

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

Source: NOAA Storm Events Database, event 302441. Narratives are written by the National Weather Service forecast office that issued the report.

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