The radar-estimated size surface caught this storm, reaching 1.5" aloft. NEXRAD logged no point detections over Mason this day.
A tornado was also reported to the National Weather Service during this storm — see the ground reports below.
1.5"
≈ ping-pong ball · radar-estimated size aloft1,947
6
6 tornadoOverview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
Largest hailstone — the top predictor of roof damage.
How many homes sit inside the storm's footprint.
Independent storm reports filed with the NWS.
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.
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.
Only the radar-estimated size surface resolved for Feb 19, 2026 — this storm produced no NEXRAD point detections over Mason, so there is one map to show, not two.
This was Mason's 1st recorded hail day — the first hail day in our records for the city. By severity it ranks 1st of the 8 storms we have logged here. Radar put the day's largest stone over Mason at 1.5" — radar-estimated size aloft.
The Feb 19, 2026 convective day was bigger than Mason: the same system put hail over 64 other tracked cities, 31 of them in Illinois. Nearest: Dieterich (7 miles north, up to 1.5"); Edgewood (8 miles west, up to 1.25"); Wheeler (13 miles northeast, up to 1.25").
These maps are stills from Mason's Feb 19, 2026 storm. In the Overview app the same surfaces are live — radar updating in real time, radar-estimated hail size as it forms, and NWS spotter reports pinned where they're filed — with a radar replay you can scrub back over any past day.
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.
“EF0... 75 mph... path length 4.1 miles. Much of the damage was concentrated at a farmstead along the Clay/Effingham county line east of 1800th St. Metal from the top of (ILX)”
— NOAA / SPC storm report
“(ILX)”
— NOAA / SPC storm report
“CORRECTS TIME OF WHEN TORNADO OCCURRED. EF0... PEAK WIND SPEED 75 MPH... PATH LENGTH 3.0 MILES. THE TORNADO TOUCHED DOWN JUST SOUTH OF THE CLAY AND EFFINGHAM COUNTY LIN (ILX)”
— NOAA / SPC storm report
“EF0... peak wind speed 75 mph... path length 3.0 miles. The tornado touched down just south of the Clay and Effingham county line... near the Edgewood Rd. curve... and (ILX)”
— NOAA / SPC storm report
“Corrects previous tornado report from Mason. Corrected location. (ILX)”
— NOAA / SPC storm report
“EF-U tornado briefly occurred in a field. Confirmed from chaser video. Delayed report. (ILX)”
— NOAA / SPC storm report
Hail was reported over 245 minutes, from to .
Reports came from Bible Grove and Edgewood — beyond Mason itself.
At an inch and a half, hail cracks shingles, strips granules down to the mat, and dents gutters, vents, and siding. A footprint like this typically produces a wave of insurance claims — and the contractor who reaches the homeowner first usually gets the inspection.
$23M
Potential roof exposure — 1,947 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.Radar updates in real time, spotter reports appear on the map as they're filed, and the full Mason storm history — this Feb 19, 2026 storm included — sits underneath. When you're ready, draw this storm's footprint and pull highly accurate homeowner contact information for every address inside it.
Highly accurate contact information starting at $0.23 per address — every contact included. Digital leads cost $15–$40. Start with a 7-day free trial — no credit card required. See pricing
8 recorded storm days in Mason, IL
Jul 26, 2026
0.75"
Jun 25, 2026
1"
Jun 17, 2026
0.5"
Jun 11, 2026
0.5"
May 15, 2026
0.75"
Apr 27, 2026
1"
Mar 4, 2026
2.25"