Hail size 2.5"
1 S St. Peter Nicollet County
“Report from mPING: Tennis Ball (2.50 in.). (MPX)”
— NOAA / SPC storm report
/ Storm field report · Nicollet
Hail in Saint Peter · Apr 13, 2026
NEXRAD logged 17 hail signatures up to 3"; the estimated-size surface reached 1.5" aloft. 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.
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Peak hail signal 3" ≈ baseball · the largest NEXRAD radar signature
Homes in the hail footprint 1,055
Ground reports 4 4 hail
Radar surfaces 2 NEXRAD + estimated size
Convective day · Apr 13, 2026 · noon–noon UTC
Severity
The most severe storm Saint Peter has seen in the last 12 months
Composite score · 7.0 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
7.0 /10
- Peak hail signal
- 75 /100
- Homes exposed
- 60 /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 Saint Peter saw the hail — from two instruments
Apr 13, 2026 · Saint Peter, MN
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.
NEXRAD radar signatures Surface resolved
Radar signature field NEXRAD's hail signatures for this storm: the spots the radar detected from above. A detection overhead is not the same thing as a confirmed stone below.
Max size
3"
Detections
17
Radar-estimated hail size Surface resolved
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.
Max size
1.5"
The storm in context
Where Apr 13, 2026 sits in Saint Peter's hail record.
This was Saint Peter's 1st recorded hail day — the first hail day in our records for the city. By severity it ranks 1st of the 10 storms we have logged here. Radar put the day's largest stone over Saint Peter at 3" — the largest NEXRAD radar signature.
The Apr 13, 2026 convective day was bigger than Saint Peter: the same system put hail over 467 other tracked cities, 71 of them in Minnesota. Nearest: Cleveland (14 miles southeast, up to 2.5"); Le Center (17 miles east, up to 2"); New Ulm (21 miles west, up to 3.25").
These maps are stills. In the app this date is one of 10 Saint Peter 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 2.75"
1 S St. Peter Nicollet County
“Report from mPING: Baseball (2.75 in.). (MPX)”
— NOAA / SPC storm report
Hail size 1.5"
St. Peter Nicollet County
“Report from mPING: Ping Pong Ball (1.50 in.). (MPX)”
— NOAA / SPC storm report
Hail size 2"
3 E Nicollet Nicollet County
“(MPX)”
— 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 29 minutes, from to .
Reports came from St. Peter and Nicollet — beyond Saint Peter itself.
Severe hail signal
What 3" hail means for Saint Peter 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.
1,055 homes × $12,000 avg. claim
Potential roof exposure
$13M
Potential roof exposure — 1,055 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 1,055 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
April 2028
Claims from this storm can typically be filed until around April 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 $222 on top of the $150 plan.
Saint Peter hail history
Other storms in Saint Peter.
10 recorded storm days in Saint Peter, MN
Estimated-size surface Storm date Saint Peter / MN
Aug 17, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Saint Peter / MN
Aug 8, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Saint Peter / MN
Jun 9, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Saint Peter / MN
Jun 7, 2026
0.75" Signatures 0.75" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Saint Peter / MN
May 24, 2026
0.75" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Saint Peter / MN
May 18, 2026
0.5" Signatures 0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Saint Peter / MN
May 17, 2026
1" Signatures 1"
No ground reports filed Open report →
Estimated-size surface Storm date Saint Peter / MN
Apr 23, 2026
1.25" Signatures 1.25"
No ground reports filed Open report →
Estimated-size surface Storm date Saint Peter / MN
Apr 17, 2026
1.5" Signatures 1.5" Estimated 0.75"
1 ground report Open report →
The next storm won’t wait for you.
Set your territory and alerts today. When hail hits, use Overview to choose your streets and get moving.
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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 Aug 18, 2026.