Wind gust 62 mph
3 E Grinnell Gove County
“Mesonet site: UP830 reported at 62.0 mph gust. (GLD)”
— NOAA / SPC storm report
/ Storm field report · Gove
Hail in Grainfield · Aug 13, 2026
Hit 30 days ago
The estimated-size surface reached 1" aloft; NEXRAD logged no point detections over Grainfield that day. Open it on the live map to see the swath over the streets.
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Peak hail signal 1" ≈ quarter · radar-estimated size aloft
Homes in the hail footprint 488
Ground reports 1 1 wind
Radar surfaces 1 Estimated size only
Convective day · Aug 13, 2026 · noon–noon UTC
Severity
The 2nd most severe storm Grainfield has seen in the last 12 months
Composite score · 3.1 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
3.1 /10
- Peak hail signal
- 25 /100
- Homes exposed
- 54 /100
- Ground truth
- 17 /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 Grainfield saw the hail — from two instruments
Aug 13, 2026 · Grainfield, KS
The maps here read the same storm from two angles — point detections from NEXRAD, and modeled hail size aloft. Where the two disagree is informative: it marks where estimated size outran the signatures, or trailed them.
Radar-estimated hail size Surface resolved
Estimated size field The modeled maximum hail size across the swath, derived from radar aloft — the largest stone the storm could have supported, which is not necessarily what reached the ground.
Max size
1"
Only the radar-estimated size surface resolved for Aug 13, 2026 — this storm produced no NEXRAD point detections over Grainfield, so there is one map to show, not two.
The storm in context
Where Aug 13, 2026 sits in Grainfield's hail record.
This was Grainfield's 6th recorded hail day, arriving 44 days after the Jun 30, 2026 storm. By severity it ranks 2nd of the 6 storms we have logged here. Radar put the day's largest stone over Grainfield at 1" — radar-estimated size aloft.
The Aug 13, 2026 convective day was bigger than Grainfield: the same system put hail over 437 other tracked cities, 62 of them in Kansas. Nearest: Park (11 miles east, up to 1"); Grinnell (13 miles southwest, up to 1"); Gove (17 miles south, up to 1.75").
These maps are stills. In the app this date is one of 6 Grainfield 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
1 report 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.
Wind reports
1 reportStorm 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.
Reports came from Grinnell — beyond Grainfield itself.
Damage-capable hail signal
What 1" hail means for Grainfield roofs.
Quarter-size and larger hail can bruise asphalt mats, remove granules, and dent exposed soft metal. The mapped footprint identifies an inspection priority area — it does not identify which individual roofs, if any, sustained damage.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
488 homes × $12,000 avg. claim
Potential roof exposure
$5.9M
Potential roof exposure — 488 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 2 jobs
- Illustrative work
- ~$30K
Close just 0.5% of the 488 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 $102 on top of the $150 plan.
Grainfield hail history
Other storms in Grainfield.
6 recorded storm days in Grainfield, KS
Estimated-size surface Storm date Grainfield / KS
Jun 30, 2026
No ground reports filed Open report →
Estimated-size surface Storm date Grainfield / KS
Jun 24, 2026
0.75" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Grainfield / KS
Jun 20, 2026
2.75" Estimated 2.75"
5 ground reports Open report →
Estimated-size surface Storm date Grainfield / KS
Jun 12, 2026
0.75" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Grainfield / KS
Apr 26, 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 Aug 14, 2026.