Thunderstorm Wind, Shelby
- When
- July 10, 9:49 PM CST
- Where
- Shelby County, 0.52 mi W of Corley
- Measured
- 59 kt (68 mph) measured gust
- Reported by
- AWOS
- Coordinates
- 41.580, -95.340
KHNR AWOS measured thunderstorm wind gust of 68 mph.
On July 10, 2025, a shortwave trough pushing into Nebraska spurred the development of a surface low, which tracked eastward across the state. This system fueled a rapid increase in atmospheric instability during the afternoon as improved forcing for ascent moved in, triggering thunderstorms across east-central Nebraska.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS OAX wrote it up.
On July 10, 2025, a shortwave trough pushing into Nebraska spurred the development of a surface low, which tracked eastward across the state. This system fueled a rapid increase in atmospheric instability during the afternoon as improved forcing for ascent moved in, triggering thunderstorms across east-central Nebraska. Initially, a few semi-discrete supercells formed in the northeast Nebraska, bringing large hail and damaging winds. Notable reports included hail estimated at 1.75 inches in diameter northeast of Neligh and 1.25-inch hail northwest of Monroe. Wind gusts within these initial storms were also measured between 58 and 63 mph.
In the evening, these storms merged and grew into a large, relatively disorganized cluster of thunderstorms that pushed eastward across eastern Nebraska and into southwestern Iowa. After crossing the Missouri River, one portion of the line intensified, producing a measured wind gust of 68 mph south of Harlan, Iowa. The thunderstorm complex also brought localized heavy rainfall, with rates of 1.5 to 2.5 inches per hour. This contributed to rainfall totals of 2 to 3 inches in northeast Nebraska, which exacerbated already saturated conditions from the previous week. The thunderstorms gradually weakened overnight as they progressed into central Iowa, with precipitation slowly clearing behind the main line of storms.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Omaha, NE wrote its last area forecast discussion before the first event at Jul 10, 5:39 PM CST, 4 hours 10 minutes earlier.
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</html>The Omaha radar (KOAX), 90 km away, was scanning. The volume nearest the first event began at 03:49 UTC.
1 thunderstorm wind. Local standard time, as filed.
KHNR AWOS measured thunderstorm wind gust of 68 mph.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Iowa in 2025Every state in 2025This day in weather historyWarnings in Iowa, July 2025
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 1279957.