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EF1 tornado in Hancock County, Mississippi

Tornado August 29, 2021 · Hancock County, Mississippi

EF1
Rating
1.7 mi
Path length
150 yd
Path width
$10K
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

A waterspout that crossed the Bay of St Louis moved into Diamondhead, crossing I-10 near Diamondhead Drive N where it damaged and peeled shingles off of the Memorial Woodland Village Rehabilitation and Nursing Center. It likely lifted shortly afterwards west of Gex Rd and Leisure Time Dr. Survey conducted remotely via high-res aerial photography. Estimated peak winds of 90 mph.

The wider storm

The ninth named storm, fourth hurricane, and second major hurricane of the 2021 Atlantic hurricane season, Ida originated from a tropical wave in the Caribbean Sea on August 23rd. On August 26th, the wave developed into a tropical depression, which organized further and became Tropical Storm Ida later that day, near Grand Cayman. On a northwestward track, Ida intensified into a hurricane on August 27, just before moving over western Cuba. A day later, the hurricane underwent rapid intensification over the Gulf of Mexico as it passed over a warm core eddy and reached major hurricane strength. It was just under 72 hours from tropical depression formation to category 4 strength with 150 mph winds. Ida remained at its peak intensity of 150 mph winds and a minimum central pressure of 929 millibars as it made landfall near Port Fourchon midday on August 29th. It didn't weaken to a tropical storm until it reached near the Louisiana/Mississippi border.

Ida produced over a dozen tornadoes and light to moderate wind damage across southwestern and coastal Mississippi. Around 100,000 residents were without power. Around 100 homes were damaged, 6 destroyed. Storm surge inundation ranged from a few feet in Jackson County to 7 feet in Harrison County. Hurricane Ida caused approximately $10 million worth of damage.

Began near Diamondhead Arpt (30.3618, -89.3600).

Other tornadoes from the same storm system

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

Source: NOAA Storm Events Database, event 979255. Narratives are written by the National Weather Service forecast office that issued the report.

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