Hail in Mammoth Spring Mar 15, 2026
NEXRAD caught this storm: 2 hail signatures up to 0.75". The radar-estimated size surface had no signal to model this day.
0.75"
≈ penny to nickel · the largest NEXRAD radar signature43
0
none filedThe 4th most severe storm Mammoth Spring has seen in the last 12 months
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
- Hail size
- 19 /100
- Homes exposed
- 33 /100
- Ground truth
- 0 /100
Largest hailstone — the top predictor of roof damage.
How many homes sit inside the storm's footprint.
Independent storm reports filed with the NWS.
How Mammoth Spring saw the hail — from two instruments
Two instruments, one storm: NEXRAD logs the point signatures it detected overhead, while the estimated-size surface models how large the hail aloft could have grown. Agreement between them is not guaranteed — the gaps are where the model ran ahead of, or behind, the detections.
NEXRAD's hail signatures for this storm: the spots the radar detected from above. A detection overhead is not the same thing as a confirmed stone below.
Only the NEXRAD radar-signature surface resolved for Mar 15, 2026 — the estimated-size swath had no hail signal to model for this storm, so there is one map to show, not two.
Where Mar 15, 2026 sits in Mammoth Spring's hail record
This was Mammoth Spring's 2nd recorded hail day, arriving 11 days after the Mar 4, 2026 storm. By severity it ranks 4th of the 5 storms we have logged here. Radar put the day's largest stone over Mammoth Spring at 0.75" — the largest NEXRAD radar signature.
The Mar 15, 2026 convective day was bigger than Mammoth Spring: the same system put hail over 695 other tracked cities, 131 of them in Arkansas. Nearest: Camp (11 miles west, up to 0.75"); Ravenden Springs (17 miles east, up to 1"); Salem (18 miles west, up to 1").
These maps are stills from Mammoth Spring's Mar 15, 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.
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 Mammoth Spring. 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.
What 0.75" hail means for Mammoth Spring roofs
Hail this size sits right at the edge of the National Weather Service severe threshold. Newer roofs usually shrug it off, but aging or already-worn shingles can bruise, and soft metals — vents, flashing, gutters — often show the first dents.
$516K
Potential roof exposure — 43 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.Track hail over Mammoth Spring on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Mammoth Spring storm history — this Mar 15, 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
5 recorded storm days in Mammoth Spring, AR
Other storms in Mammoth Spring
Jul 20, 2026
0.5"
Jun 1, 2026
1.25"
Apr 27, 2026
1.75"
Mar 4, 2026
2.25"