The estimated-size surface reached 2.75" aloft; NEXRAD logged no point detections over Mart that day. At 2.75" — baseball — this is a severe hail signal associated with roof damage. Open it on the live map to see the swath over the streets.
7-day free trial in the iPhone app. No card required to start.
For iPhone. Android coming soon.
Web trial: 7 days free. Card required. $150/month after the trial unless cancelled.
Convective day · Apr 28, 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 Apr 28, 2026 — this storm produced no NEXRAD point detections over Mart, so there is one map to show, not two.
The storm in context
This was Mart's 2nd recorded hail day, arriving 55 days after the Mar 4, 2026 storm. By severity it ranks 1st of the 5 storms we have logged here. Radar put the day's largest stone over Mart at 2.75" — radar-estimated size aloft.
The Apr 28, 2026 convective day was bigger than Mart: the same system put hail over 724 other tracked cities, 100 of them in Texas. Nearest: Groesbeck (9 miles east, up to 3.25"); Riesel (11 miles south, up to 3"); Axtell (12 miles northwest, up to 1.25").
These maps are stills. In the app this date is one of 5 Mart 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.
“Delayed report from Tuesday night April 28th. Numerous social media photos showed hail from golfball to baseball size fell in Hallsburg. Significant damage occurred to (FWD)”
— 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 Hallsburg — beyond Mart itself.
Severe hail signal
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
Potential roof exposure
$58M
Potential roof exposure — 4,801 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Close just 0.5% of the 4,801 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 $1,008 on top of the $150 plan.
Estimated-size surface 
Estimated-size surface 
Estimated-size surface 
NEXRAD surface Set your territory and alerts today. When hail hits, use Overview to choose your streets and get moving.
7-day free trial in the iPhone app. No card required to start.
For iPhone. Android coming soon.
Web trial: 7 days free. Card required. $150/month after the trial unless cancelled.