The estimated-size surface reached 0.5" aloft; NEXRAD logged no point detections over Earlville that day. 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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Convective day · Aug 11, 2026 · noon–noon UTC
Severity
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
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
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.
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.
Only the radar-estimated size surface resolved for Aug 11, 2026 — this storm produced no NEXRAD point detections over Earlville, so there is one map to show, not two.
The storm in context
This was Earlville's 4th recorded hail day, arriving 41 days after the Jul 1, 2026 storm. By severity it ranks 3rd of the 4 storms we have logged here. Radar put the day's largest stone over Earlville at 0.5" — radar-estimated size aloft.
The Aug 11, 2026 convective day was bigger than Earlville: the same system put hail over 1,041 other tracked cities, 89 of them in Iowa. Nearest: Manchester (10 miles west, up to 0.5"); Strawberry Point (12 miles northwest, up to 0.5"); Hopkinton (15 miles south, up to 0.5").
These maps are stills. In the app this date is one of 4 Earlville 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
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.
“An EF1 tornado with max wind speeds of 95 MPH caused damage to trees... a house and a couple of farm outbuildings. A tree fell on a house heavily damaging a garage. A l (DVN)”
— NOAA / SPC storm report
“An EF1 tornado... with max wind speeds of 90 MPH caused damage to trees and crops across its 1.5 mile long path. A hoop outbuilding was flung into the southside of a fa (DVN)”
— NOAA / SPC storm report
Storm forensics
Read from the arrival times and locations of the NOAA ground reports, not a radar-measured storm track.
Reports came from Of Earlville and Greeley — beyond Earlville itself.
Below the severe threshold
Radar signals under three-quarters of an inch stay below the National Weather Service severe threshold and generally indicate lower roof risk. Older or already-worn materials can still show effects, but radar alone cannot determine whether a specific roof was damaged.
Radar reading · not confirmed damage
Roofing exposure
Potential roof exposure
$972K
Potential roof exposure — 81 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 $17 on top of the $150 plan.
Earlville hail history
NEXRAD surface 
Estimated-size surface 
Estimated-size surface See the hail, review your recommendations, and canvass with Overview on iPhone.
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