“Time estimated from radar as well as estimated 50 - 55 mph winds. (LBF)”
— NOAA / SPC storm report
Hail in Crookston · Aug 27, 2026
The estimated-size surface reached 2.25" aloft; NEXRAD logged no point detections over Crookston that day. At 2.25" — 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.
Convective day · Aug 27, 2026 · noon–noon UTC
Severity
The 3rd most severe storm Crookston has seen in the last 12 months
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
- Peak hail signal
- 56 /100
- Homes exposed
- 40 /100
- Ground truth
- 33 /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 Crookston saw the hail — from two instruments
Two instruments, one storm: NEXRAD logs the point signatures it detected overhead, while the estimated-size surface models how large the hail aloft could have grown. Agreement between them is not guaranteed — the gaps are where the model ran ahead of, or behind, the detections.
Estimated size field Radar-estimated maximum hail size across the swath, modeled from radar aloft. It reflects the biggest stone the storm could support, which may differ from what actually fell.
Only the radar-estimated size surface resolved for Aug 27, 2026 — this storm produced no NEXRAD point detections over Crookston, so there is one map to show, not two.
The storm in context
Where Aug 27, 2026 sits in Crookston's hail record.
This was Crookston's 14th recorded hail day, arriving 6 days after the Aug 21, 2026 storm. By severity it ranks 3rd of the 14 storms we have logged here. Radar put the day's largest stone over Crookston at 2.25" — radar-estimated size aloft.
The Aug 27, 2026 convective day was bigger than Crookston: the same system put hail over 365 other tracked cities, 41 of them in Nebraska. Nearest: Kilgore (6 miles northwest, up to 2.25"); Valentine (16 miles southeast, up to 2.75"); Saint Francis (19 miles northwest, up to 2").
These maps are stills. In the app this date is one of 14 Crookston 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
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
2 reports“(LBF)”
— NOAA / SPC storm report
Storm forensics
How the storm moved
Read from the arrival times and locations of the NOAA ground reports, not a radar-measured storm track.
Reports came from Kilgore — beyond Crookston itself.
Severe hail signal
What 2.25" hail means for Crookston 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.
Potential roof exposure
$1.1M
Potential roof exposure — 94 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
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 $20 on top of the $150 plan.
Crookston hail history
Other storms in Crookston.
Estimated-size surface Aug 21, 2026
1.25"
Estimated-size surface Aug 17, 2026
1.5"
Estimated-size surface Aug 11, 2026
2"
Estimated-size surface Aug 8, 2026
0.75"
Estimated-size surface Jul 30, 2026
4"
Estimated-size surface Jul 29, 2026
1"
Estimated-size surface Jul 27, 2026
1"
Estimated-size surface Jul 9, 2026
1.5"
Estimated-size surface Jul 6, 2026
1.75"
Estimated-size surface Jun 27, 2026
2.5"
Estimated-size surface Jun 20, 2026
1.25"
Estimated-size surface Jun 4, 2026
1.75"
Estimated-size surface May 17, 2026
0.5"Take your next area into the field.
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