Thunderstorms initially formed in the late afternoon in the vicinity of a surface boundary over southwest North Dakota, with additional storms then forming through the late afternoon into the evening in an environment of elevated instability and deep layer shear. Many storms became supercells, producing very large hail.
Every event with a place to put it. Tap one for its entry below.
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 BIS wrote it up.
Thunderstorms initially formed in the late afternoon in the vicinity of a surface boundary over southwest North Dakota, with additional storms then forming through the late afternoon into the evening in an environment of elevated instability and deep layer shear. Many storms became supercells, producing very large hail. Over the Bismarck-Mandan area, three separate storms produced large hail. The first storm passed through the Harmon Lake area before crossing the Missouri River and passing through the north side of Bismarck, causing extensive damage with hail up to 3 inches in diameter. As that storm moved along, a second storm formed to the south of Mandan and quickly intensified as it crossed the Missouri River and passed over developments to the south of Bismarck and over the Lincoln area. Many locations experienced two inch diameter hail with this storm, which increased to baseball size over Lincoln. One mile south of Lincoln, a hailstone was measured at 4.5 inches. These two storms caused extensive damage to structures and vehicles, resulting in millions of dollars in damage. A third severe storm then formed over Bismarck, but this storm was weaker, producing one-inch diameter hail. Additional thunderstorms then continued over central North Dakota with the main threat shifting towards strong winds late in the event. The strongest wind gust was estimated at 75 mph at McKenna Lake, near Napoleon, Logan County, where four campers were blown over.
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 Bismarck, ND wrote its last area forecast discussion before the first event at Jul 29, 3:40 PM CST, 15 minutes earlier.
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</html>Hazardous Weather Outlook National Weather Service Bismarck ND 232 PM CDT Mon Jul 29 2024 NDZ018>023-025-033>037-040>048-050-051-301945- Dunn-Mercer-Oliver-McLean-Sheridan-Wells-Foster-Stark-Morton- Burleigh-Kidder-Stutsman-Slope-Hettinger-Grant-Bowman-Adams-Sioux- Emmons-Logan-La Moure-McIntosh-Dickey- 232 PM CDT Mon Jul 29 2024 /132 PM MDT Mon Jul 29 2024/ This Hazardous Weather Outlook is for portions of south central North Dakota, southeast North Dakota, and southwest North Dakota. .DAY ONE...This Afternoon and Tonight Scattered severe thunderstorms are possible this afternoon and evening. The main expected hazards are hail up to 2 inches in diameter and winds as high as 70 mph. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday Scattered severe thunderstorms are possible Tuesday afternoon through the early overnight hours, mainly over central North Dakota. The main expected hazards are hail up to golf balls in size and winds as high as 60 mph. Isolated severe thunderstorms are possible Wednesday afternoon and evening. The main expected hazards are large hail and strong winds. .SPOTTER INFORMATION STATEMENT... Call reports into the NWS in Bismarck at 701-223-4582 or post them to our social media pages. For other ways to make reports to the NWS, go to: www.weather.gov/crh/stormreports?sid=bis NDZ003>005-010>013-017-031-032-301945- Renville-Bottineau-Rolette-Mountrail-Ward-McHenry-Pierce-McKenzie- Golden Valley-Billings- 232 PM CDT Mon Jul 29 2024 /132 PM MDT Mon Jul 29 2024/ This Hazardous Weather Outlook is for portions of north central North Dakota, northwest North Dakota, and southwest North Dakota. .DAY ONE...This Afternoon and Tonight Isolated severe thunderstorms are possible this afternoon and evening. The main expected hazards are hail up to the size of quarters and winds as high as 60 mph. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday Scattered severe thunderstorms are possible Tuesday afternoon through the early overnight hours, mainly over central North Dakota. The main expected hazards are hail up to golf balls in size and winds as high as 60 mph. .SPOTTER INFORMATION STATEMENT... Call reports into the NWS in Bismarck at 701-223-4582 or post them to our social media pages. For other ways to make reports to the NWS, go to: www.weather.gov/crh/stormreports?sid=bis NDZ001-002-009-301945- Divide-Burke-Williams- 232 PM CDT Mon Jul 29 2024 This Hazardous Weather Outlook is for portions of northwest North Dakota. .DAY ONE...This Afternoon and Tonight Isolated thunderstorms are possible this afternoon and evening. Severe weather is not expected. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed.
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</html>The Minot AFB radar (KMBX), 120 km away, was scanning. The volume nearest the first event began at 21:53 UTC.
12 hail, 7 thunderstorm wind. Local standard time, as filed.
The hail combined with strong thunderstorm winds to produce damage a corn field.
An intense thunderstorm passed over the Harmon Lake area, including the campgrounds on the north side, and produced hail as large as three inches in diameter. Many campers and structures sustained significant damage.
The severe thunderstorm that passed over the Harmon Lake area in Morton County moved into Burleigh County, and produced a swath of ping pong ball to tennis ball size hail as it passed to the north of the city of Bismarck. This storm caused extensive damage to roofs and vehicles.
A slow moving thunderstorm developed to the south of Mandan and rapidly strengthened as it moved into Burleigh County. The storm then gradually moved to the east-southeast passing over Lincoln. This storm caused extensive damage to developments to the south of Bismarck and throughout the Lincoln area. Most locations initially experienced hail ranging from one to two inches in diameter, but as the storm approached Lincoln hail increased to baseball size. In addition, one mile to the south of Lincoln a hailstone was measured at 4.5 inches in diameter.
This hail report was from the third storm to pass over the Bismarck area.
Thunderstorm wind gusts were estimated by the public.
Crops were damaged in the area.
Four campers were rolled over at McKenna Lake.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in North Dakota in 2024Every state in 2024This day in weather historyWarnings in North Dakota, July 2024
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: 1203858, 1203861, 1204133, 1204134, 1204135, 1203859, 1204136, 1204138, 1204139, 1204140, 1204137, 1204141, 1204142, 1204143, 1204144, 1204145, 1204146, 1204147, 1204148.