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EF1 tornado in Orange County, Indiana

Tornado August 6, 2023 · Orange County, Indiana

EF1
Rating
36.2 mi
Whole path
110 yd
Path width

NOAA records this tornado county by county. Its path ran through Dubois County → Orange County → Orange County → Orange County → Orange County; the totals above are for the whole tornado.

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 110 yards (0.06 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 first damage point had a few topped and twisted trees near Red Bud Lane and Hospital Rd. Wind speeds were between 75 and 80 mph with a 50 yard width. There was sporadic tree damage along a creek, and tree damage became more concentrated along Apache and Slaten Drive with trees twisted, topped, and one uprooted tree. Wind speeds increased to 85 to 90 mph with a width of 75 yards. The width increased to 100 yards along Sandy Hook Road and Paul Street with wind speeds around 90 mph. There were several trees on homes, and increased twisting of the trees with damage going from the east southeast to the north northeast. There were numerous power poles and powerlines down between Indiana 37 and Paul Street.

The peak of the tornado damage was on the east side of Indiana 37 between Locust Street and Oak Street. Several warehouses had significant roof damage with debris thrown from east southeast to north northeast. There were several cars that had debris on the west and east side of them. The debris from the warehouse was thrown into a forested area up to 200 yards in distance. Wind speed in this area were 100 mph with a width of 110 yards. The NWS drone was key to the survey, with drone imagery capturing trees snapped, topped, and uprooted several hundred yards east of the last warehouse. There was a lot of straight line wind damage between the two different tornadoes in Paoli.

The wider storm

Several individual storms moved across Missouri and Illinois before combining into a line of convection as it moved across southern Indiana. The line interacted with the low level jet to produce 6 tornadoes across 4 Indiana counties, including a long track tornado that traveled 25.89 miles through Dubois and Orange Counties. This set the record for the longest known tornado track for the month of August within the NWS Louisville County Warning Area. Other parts of the line surged and caused tree and power line damage along and north of Interstate 64 across southern Indiana and into the greater Louisville, Kentucky area. Additional wind and hail reports were received from the Bluegrass region of Kentucky.

Began near Paoli (38.5636, -86.4807).

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 1119015. Narratives are written by the National Weather Service forecast office that issued the report.

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