Hail in Signal Mountain · Sep 19, 2026
The estimated-size surface reached 1.5" aloft; NEXRAD logged no point detections over Signal Mountain that day. Open it on the live map to see the swath over the streets.
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Convective day · Sep 19, 2026 · noon–noon UTC
Severity
Signal Mountain'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
- 38 /100
- Homes exposed
- 59 /100
- Ground truth
- 0 /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 Signal Mountain 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.
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 Sep 19, 2026 — this storm produced no NEXRAD point detections over Signal Mountain, so there is one map to show, not two.
The storm in context
Where Sep 19, 2026 sits in Signal Mountain's hail record.
This was Signal Mountain'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 Signal Mountain at 1.5" — radar-estimated size aloft.
The Sep 19, 2026 convective day was bigger than Signal Mountain: the same system put hail over 336 other tracked cities, 15 of them in Tennessee. Nearest: Chattanooga (9 miles southwest, up to 0.5"); Tracy City (17 miles west, up to 0.75"); Jasper (18 miles west, up to 1").
These maps are stills. In the app this date is one of 1 Signal Mountain 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.
No ground reports were filed with the National Weather Service for this storm over Signal Mountain. That is common: a report depends on someone being there to see it and take the time to call it in. The radar surfaces above are the record here — the storm was detected from above even though no one on the ground logged it.
High damage potential
What 1.5" hail means for Signal Mountain roofs.
Hail around an inch and a half is capable of cracking shingles, stripping granules, and denting gutters, vents, and siding. Risk is usually greatest near the strongest radar signal, but property-level damage still requires an on-site inspection.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
Potential roof exposure
$10M
Potential roof exposure — 853 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 853 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 $179 on top of the $150 plan.
Signal Mountain hail history
Signal Mountain's hail record.
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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