“Corrects previous hail report from 3 E Cole City. Quarter sized hail reported near the intersection of Stallings Road and Picket Post Trail in New Home. (FFC)”
— NOAA / SPC storm report
Hail in Whiteside · Sep 21, 2026
Convective day · Sep 21, 2026 · noon–noon UTC
Severity
Whiteside's only recorded storm in the last 12 months
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
- Peak hail signal
- 31 /100
- Homes exposed
- 57 /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 Whiteside saw the hail — from two instruments
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.
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 Sep 21, 2026 — this storm produced no NEXRAD point detections over Whiteside, so there is one map to show, not two.
The storm in context
Where Sep 21, 2026 sits in Whiteside's hail record.
This was Whiteside's 1st recorded hail day — the first hail day in our records for the city. By severity it ranks 1st of the 1 storms we have logged here. Radar put the day's largest stone over Whiteside at 1.25" — radar-estimated size aloft.
The Sep 21, 2026 convective day was bigger than Whiteside: the same system put hail over 498 other tracked cities, 39 of them in Tennessee. Nearest: Whitwell (7 miles north, up to 1"); Signal Mountain (18 miles northeast, up to 0.75"); Ringgold (18 miles east, up to 0.5").
These maps are stills. In the app this date is one of 1 Whiteside storm date 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
1 reportStorm 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 Cole City — beyond Whiteside itself.
Damage-capable hail signal
What 1.25" hail means for Whiteside 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.
Potential roof exposure
$8.7M
Potential roof exposure — 721 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 4 jobs
- Illustrative work
- ~$60K
Close just 0.5% of the 721 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
September 2028
Claims from this storm can typically be filed until around September 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 $151 on top of the $150 plan.
Whiteside hail history
Whiteside's hail record.
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