Tornado Rating unknown
8 SSW Arnegard McKenzie County
“Storm chaser reported brief touchdown. Radar estimated location. (BIS)”
— NOAA / SPC storm report
/ Storm field report · McKenzie
Hail in Alexander · Sep 6, 2026
Hit 6 days ago
The estimated-size surface reached 3" aloft; NEXRAD logged no point detections over Alexander that day. At 3" — baseball — this is a severe hail signal associated with roof damage. Open it on the live map to see the swath over the streets.
A tornado was also reported to the National Weather Service during this storm. The ground reports below show where it was filed.
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Peak hail signal 3" ≈ baseball · radar-estimated size aloft
Homes in the hail footprint 971
Ground reports 2 1 wind · 1 tornado
Radar surfaces 1 Estimated size only
Convective day · Sep 6, 2026 · noon–noon UTC
Severity
The most severe storm Alexander has seen in the last 12 months
Composite score · 6.7 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
6.7 /10
- Peak hail signal
- 75 /100
- Homes exposed
- 60 /100
- Ground truth
- 50 /100
Largest radar-indicated size — a signal of damage potential, not confirmation.
How many homes sit inside the storm's footprint.
Independent storm reports filed with the NWS.
Evidence / storm surfaces
How Alexander saw the hail — from two instruments
Sep 6, 2026 · Alexander, ND
We map this storm two ways: the NEXRAD radar signatures the storm produced overhead, and the radar-estimated size of the hail in the air. The two surfaces don’t have to match — where they diverge is where estimated size aloft ran ahead of, or behind, what the signatures caught.
Radar-estimated hail size Surface resolved
Estimated size field Maximum hail size as estimated from radar aloft. Treat it as the storm's ceiling — the largest supportable stone — rather than a ground measurement.
Max size
3"
Only the radar-estimated size surface resolved for Sep 6, 2026 — this storm produced no NEXRAD point detections over Alexander, so there is one map to show, not two.
The storm in context
Where Sep 6, 2026 sits in Alexander's hail record.
This was Alexander's 6th recorded hail day, arriving 4 days after the Sep 2, 2026 storm. By severity it ranks 1st of the 6 storms we have logged here. Radar put the day's largest stone over Alexander at 3" — radar-estimated size aloft.
The Sep 6, 2026 convective day was bigger than Alexander: the same system put hail over 608 other tracked cities, 69 of them in North Dakota. Nearest: Arnegard (10 miles east, up to 3"); Watford City (26 miles east, up to 3.5"); Grassy Butte (28 miles southeast, up to 0.75").
These maps are stills. In the app this date is one of 6 Alexander storm dates on a live map — both surfaces, the reports, and a replay — and the same map is where you draw the swath. This page rebuilds nightly.
Ground reports
What people on the ground reported
2 reports filed with the NWS
These are storm reports filed with the National Weather Service and released through the NOAA Storm Prediction Center — public-domain observations from spotters, the public, and NWS surveys. We quote each one exactly as filed.
Tornado reports
1 reportWind reports
1 report Wind gust 60 mph
5 NNW Charbonneau McKenzie County
“NDAWN station Charbonneau 5 NW. (BIS)”
— NOAA / SPC storm report
Storm forensics
How the storm moved
Timing and place names from NOAA ground reports
Read from the arrival times and locations of the NOAA ground reports, not a radar-measured storm track.
Hail was reported over 547 minutes, from to .
Reports came from Charbonneau and Arnegard — beyond Alexander itself.
Severe hail signal
What 3" hail means for Alexander roofs.
Two-inch-plus hail is capable of puncturing shingles, breaking skylights or windows, and heavily denting soft materials. The strongest radar bands warrant prompt inspection, but neither the signal nor the footprint confirms damage at a specific address.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
971 homes × $12,000 avg. claim
Potential roof exposure
$12M
Potential roof exposure — 971 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 5 jobs
- Illustrative work
- ~$75K
Close just 0.5% of the 971 homes in this footprint at the average $15,000 roof job. Illustrative math, not a projection — your results depend on your outreach and how the market responds.
Claim window
September 2028
Claims from this storm can typically be filed until around September 2028 — the window to reach these homeowners while it's still open. Deadlines vary by policy and state.
Names and phones for every home in the footprint: at most $204 on top of the $150 plan.
Alexander hail history
Other storms in Alexander.
6 recorded storm days in Alexander, ND
Estimated-size surface Storm date Alexander / ND
Sep 2, 2026
0.75" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Alexander / ND
Aug 29, 2026
1.5" Estimated 1.5"
No ground reports filed Open report →
Estimated-size surface Storm date Alexander / ND
Jul 5, 2026
1.25" Signatures 1" Estimated 1.25"
No ground reports filed Open report →
Estimated-size surface Storm date Alexander / ND
Jun 27, 2026
No ground reports filed Open report →
Estimated-size surface Storm date Alexander / ND
Jun 7, 2026
2" Signatures 1.75" Estimated 2"
4 ground reports Open report →
Take your next area into the field.
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A storm day here is a convective day — it runs from noon to noon
UTC, so late-night hail is grouped with the afternoon storm that
spawned it rather than split across two calendar dates. Ground
reports are public-domain observations from the NOAA Storm
Prediction Center. Radar tells you where to look. Only an inspection confirms damage at an address. Last updated Sep 7, 2026.