LaMoure County, North Dakota severe weather history spans 275 recorded events between 1955 and 2025. The dominant hazard is hail, accounting for 47.6% of all recorded events. It ranks #1,933 nationally and #37 in North Dakota.
275
Recorded events
0
Direct deaths
2
Direct injuries
$11.4M
Property damage
The record
What the LaMoure County, North Dakota severe weather history record shows
Across the archive, LaMoure County, North Dakota severe weather history averages 3.9 recorded events a year. The busiest stretch on record is the 2000s, with 81 events logged in that decade alone. Roughly 47 events fall before 1990 and 228 from 1990 onward — a gap that reflects the expansion of NOAA reporting practice as much as the weather itself.
The costliest is thunderstorm wind, with $5.6M in reported property damage. In total, 7 distinct hazard types appear in this county archive, each listed with its own dated record below.
By hazard type
Every hazard type recorded in LaMoure County
| Hazard | Events | Deaths | Damage | Max | Span |
|---|---|---|---|---|---|
| Hail | 131 | 0 | $855K | 2.75 | 1970–2024 |
| Thunderstorm Wind | 83 | 0 | $5.6M | 91 | 1962–2024 |
| Tornado | 39 | 0 | $1.9M | F3 | 1955–2025 |
| Funnel Cloud | 8 | 0 | $0 | 0 | 2008–2020 |
| Flash Flood | 8 | 0 | $1.2M | 0 | 1998–2021 |
| Lightning | 3 | 0 | $5K | 0 | 2002–2011 |
| Flood | 3 | 0 | $2.0M | 0 | 2009–2023 |
Decade by decade
LaMoure County, North Dakota severe weather history by decade
Reporting practice changed over time — early decades are undercounted, not calmer.
Tornado tracks
Paths crossing this county
43 mapped tornado paths intersect this county: 42 touched down inside it and 1 crossed in from a neighbouring county. This comes from path geometry, not county-tagged reports.
| Date | Scale | Deaths | Injuries | Path length | Origin |
|---|---|---|---|---|---|
| 2004-07-18 | EF4 | 0 | 0 | 12.0 mi | Crossed in |
| 2011-07-17 | EF3 | 0 | 1 | 16.2 mi | Touched down here |
| 1974-05-20 | EF3 | 0 | 0 | 17.3 mi | Touched down here |
| 1999-08-15 | EF2 | 0 | 0 | 28.5 mi | Touched down here |
| 1976-06-11 | EF2 | 0 | 0 | 0.1 mi | Touched down here |
| 1974-08-19 | EF2 | 0 | 0 | 0.1 mi | Touched down here |
| 1974-08-19 | EF2 | 0 | 0 | 0.1 mi | Touched down here |
| 1960-08-02 | EF2 | 0 | 0 | 0.1 mi | Touched down here |
| 2025-06-20 | EF1 | 0 | 0 | 0.2 mi | Touched down here |
| 2020-08-09 | EF1 | 0 | 0 | 0.9 mi | Touched down here |
Significant events
Deadliest events on record in LaMoure County
| Date | Type | Location | Deaths | Injuries | Damage |
|---|---|---|---|---|---|
| Jul 17, 2011 | Tornado | NORTONVILLE | 0 | 1 | $500K |
| Aug 23, 2006 | Hail | EDGELEY | 0 | 1 | $0 |
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
Extreme straight line winds associated with a severe thunderstorm caused extensive damage north of Kulm. Visual inspection of storm survey photos indicate estimated winds of 90 to 105 mph. The worst damage and highest estimated winds occurred roughly 2 miles north-northwest of Kulm where 4 large grain bins were destroyed and heavy damage was sustained to a shop on a farmstead. Also, one wall was destroyed and the roof collapsed on a large machine shed, and several pieces of farm machinery had damage from being blown over. Preliminary damage estimates indicated one million dollars to this one location. Other areas north of Kulm also sustained damage from the straight line wind gusts, but not as severe.
Thunderstorm winds in the Marion area caused extensive damage, especially to the grain handling complex in the city of Marion. Two large steel grain bins became detached from their footings, with one moving about 100 yards. The top of the grain elevator which contained the distribution portion of the grain moving legs was blown off. Multiple roofs were damage, spruce trees were uprooted, and power lines broken. The loss of power led to a secondary impact with sump pumps shutting down and basements taking on water.
The most severe wind damage observed during the storm survey in LaMoure County occurred in the town of Grand Rapids. Significant and widespread tree damage was observed, including numerous mature hardwood trees uprooted or snapped in half. Damage was also sustained to buildings, which consisted of roof damage, damage to pole barns, and several grain bins destroyed. Hey bales of 1300 pounds were also blown up to 500 yards across farm fields. ||The peak estimated wind speed of 105 mph was assigned based on damage indicators from the Enhanced Fujita Scale. It was later learned that wind sensing instruments on wind towers 10 miles west of Edgeley recorded a peak wind gust of 103 mph during the storm.
Context
Risk, population and federal disasters
Very Low
FEMA NRI risk rating
4,118
Population (ACS)
$117K
Median home value
33
Federal declarations
| Declared | Incident | Title | Type |
|---|---|---|---|
| Feb 15, 2024 | Winter Storm | SEVERE WINTER STORM AND STRAIGHT-LINE WINDS | DR |
| Jul 5, 2023 | Flood | FLOODING | DR |
| Jul 13, 2022 | Severe Storm | SEVERE WINTER STORM AND FLOODING | DR |
| Sep 1, 2021 | Severe Storm | SEVERE STORM, STRAIGHT-LINE WINDS, AND FLOODING | DR |
| Jul 9, 2020 | Flood | FLOODING | DR |
| Apr 1, 2020 | Biological | COVID-19 PANDEMIC | DR |
Quick answers
Frequently asked
How many severe weather events have been recorded in LaMoure County, North Dakota?
275 events are on record between 1955 and 2025, causing 0 direct deaths and $11.4M in property damage.
What is the most common severe weather hazard in LaMoure County?
Hail, with 131 recorded events — 47.6% of everything in the archive for this county.
How many tornadoes have crossed LaMoure County?
43 mapped tornado paths intersect the county boundary; 42 of them touched down inside it. This is derived from path geometry, not county-tagged reports.
How many federal disaster declarations cover LaMoure County?
33 federal disaster declarations from FEMA include LaMoure County, each tied to a specific incident period.
How risky is LaMoure County compared with the rest of the country?
FEMA's National Risk Index rates LaMoure County as very low risk, placing it in the 11 percentile of its state for expected annual loss.
Where does the LaMoure County, North Dakota severe weather history data come from?
Every figure is drawn from United States federal public-domain records: NOAA/NCEI Storm Events for the event archive, NOAA SPC SVRGIS for mapped tornado paths, FEMA for disaster declarations and risk ratings, and the U.S. Census for population context. Dates are shown in UTC and recent entries may still be revised by NOAA.
Nearby
Neighbouring counties
- Kidder County 255
- Logan County 191
- Hettinger County 303
- McHenry County 354
- Griggs County 319
- McIntosh County 265
Cite this page
“LaMoure County, North Dakota.” Severe Weather History. severeweatherhistory.com/county/north-dakota/lamoure-county/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.