Hail size 2"
Lincoln Burleigh County
“(BIS)”
— NOAA / SPC storm report
/ Storm field report · Burleigh
Hail in Bismarck · Aug 11, 2026
Hit 32 days ago
NEXRAD logged 0 hail signatures up to 0"; the estimated-size surface reached 2" aloft. At 2" — tennis ball — this is a severe hail signal associated with roof damage. Open it on the live map to see the swath over the streets.
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Peak hail signal 2" ≈ tennis ball · radar-estimated size aloft
Homes in the hail footprint 25,705
Ground reports 4 4 hail
Radar surfaces 2 NEXRAD + estimated size
Convective day · Aug 11, 2026 · noon–noon UTC
Severity
The 2nd most severe storm Bismarck has seen in the last 12 months
Composite score · 6.2 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
6.2 /10
- Peak hail signal
- 50 /100
- Homes exposed
- 88 /100
- Ground truth
- 67 /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 Bismarck saw the hail — from two instruments
Aug 11, 2026 · Bismarck, ND
Each storm gets two readings: the radar signatures NEXRAD recorded as the cells passed overhead, and a modeled estimate of hail size in the air. They are independent surfaces, so a mismatch between them is expected — and worth reading.
NEXRAD radar signatures Surface resolved
Radar signature field The point detections NEXRAD recorded overhead. Each signature marks where the radar saw hail aloft — it is a detection, not a stone measured on the ground.
Max size
0"
Detections
0
Radar-estimated hail size Surface resolved
Estimated size field Radar-estimated hail size over the swath. The model reports the biggest stone the storm could sustain in the air; what actually fell may have been smaller.
Max size
2"
The storm in context
Where Aug 11, 2026 sits in Bismarck's hail record.
This was Bismarck's 7th recorded hail day, arriving 18 days after the Jul 24, 2026 storm. By severity it ranks 2nd of the 8 storms we have logged here. Radar put the day's largest stone over Bismarck at 2" — radar-estimated size aloft.
The Aug 11, 2026 convective day was bigger than Bismarck: the same system put hail over 1,041 other tracked cities, 65 of them in North Dakota. Nearest: Menoken (12 miles east, up to 1"); Mandan (16 miles southwest, up to 1.75"); Baldwin (17 miles northeast, up to 2").
These maps are stills. In the app this date is one of 8 Bismarck 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
4 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.
Hail reports
4 reports Hail size 1.25"
Lincoln Burleigh County
“(BIS)”
— NOAA / SPC storm report
Hail size 1"
1 NE Lincoln Burleigh County
“Report from mPING: Quarter (1.00 in.). (BIS)”
— NOAA / SPC storm report
Hail size 1"
8 N Menoken Burleigh County
“Mostly pea sized hail with a few nickel to quarter sized mixed in. Hail lasted 16 minutes ending at 1124 pm CDT. Little wind. 0.89 inches of rain. (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.
The storm tracked northeast at roughly 20 mph, based on the timing of ground reports.
Hail was reported over 46 minutes, from to .
Reports came from Lincoln and Menoken — beyond Bismarck itself.
Severe hail signal
What 2" hail means for Bismarck 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.
25,705 homes × $12,000 avg. claim
Potential roof exposure
$308M
Potential roof exposure — 25,705 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 129 jobs
- Illustrative work
- ~$1.9M
Close just 0.5% of the 25,705 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
August 2028
Claims from this storm can typically be filed until around August 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 $5,398 on top of the $150 plan.
Bismarck hail history
Other storms in Bismarck.
8 recorded storm days in Bismarck, ND
Estimated-size surface Storm date Bismarck / ND
Sep 6, 2026
1.25" Estimated 1.25"
No ground reports filed Open report →
Estimated-size surface Storm date Bismarck / ND
Jul 24, 2026
2" Signatures 2" Estimated 1.25"
No ground reports filed Open report →
Estimated-size surface Storm date Bismarck / ND
Jul 19, 2026
2" Estimated 2"
5 ground reports Open report →
Estimated-size surface Storm date Bismarck / ND
Jul 9, 2026
1.75" Signatures 1.75" Estimated 1.25"
No ground reports filed Open report →
Estimated-size surface Storm date Bismarck / ND
Jul 3, 2026
0.75" Signatures 0.75" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Bismarck / ND
Jun 29, 2026
3.25" Signatures 3.25" Estimated 2.25"
4 ground reports Open report →
Estimated-size surface Storm date Bismarck / ND
Jun 27, 2026
No ground reports filed 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.