Wind gust 63 mph
8 NW Colony Crook County
“(UNR)”
— NOAA / SPC storm report
/ Storm field report · Carter
Hail in Alzada · Apr 13, 2026
NEXRAD logged 35 hail signatures up to 1.75"; the estimated-size surface reached 1.25" aloft. Open it on the live map to see the swath over the streets.
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Peak hail signal 1.75" ≈ golf ball · the largest NEXRAD radar signature
Homes in the hail footprint 42
Ground reports 1 1 wind
Radar surfaces 2 NEXRAD + estimated size
Convective day · Apr 13, 2026 · noon–noon UTC
Severity
The 4th most severe storm Alzada has seen in the last 12 months
Composite score · 3.7 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
3.7 /10
- Peak hail signal
- 44 /100
- Homes exposed
- 33 /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 Alzada saw the hail — from two instruments
Apr 13, 2026 · Alzada, MT
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 radar signatures Surface resolved
Radar signature field 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.
Max size
1.75"
Detections
35
Radar-estimated hail size Surface resolved
Estimated size field Radar-estimated maximum hail size across the swath, modeled from radar aloft. It reflects the biggest stone the storm could support, which may differ from what actually fell.
Max size
1.25"
The storm in context
Where Apr 13, 2026 sits in Alzada's hail record.
This was Alzada's 1st recorded hail day — the first hail day in our records for the city. By severity it ranks 4th of the 8 storms we have logged here. Radar put the day's largest stone over Alzada at 1.75" — the largest NEXRAD radar signature.
The Apr 13, 2026 convective day was bigger than Alzada: the same system put hail over 467 other tracked cities, 1 of them in Montana. Nearest: Weston (38 miles west, up to 1.5"); Camp Crook (42 miles northeast, up to 2"); Broadus (56 miles northwest, up to 1.75").
These maps are stills. In the app this date is one of 8 Alzada 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
What people on the ground reported
1 report filed with the NWS
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.
Wind reports
1 reportStorm forensics
How the storm moved
Timing and place names from NOAA ground reports
Read from the arrival times and locations of the NOAA ground reports, not a radar-measured storm track.
Reports came from Colony — beyond Alzada itself.
High damage potential
What 1.75" hail means for Alzada 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.
42 homes × $12,000 avg. claim
Potential roof exposure
$504K
Potential roof exposure — 42 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
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 $9 on top of the $150 plan.
Alzada hail history
Other storms in Alzada.
8 recorded storm days in Alzada, MT
Estimated-size surface Storm date Alzada / MT
Sep 13, 2026
0.75" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Alzada / MT
Jul 8, 2026
1" Signatures 1" Estimated 1"
No ground reports filed Open report →
Estimated-size surface Storm date Alzada / MT
Jul 2, 2026
2.75" Signatures 2.75" Estimated 1.5"
1 ground report Open report →
Estimated-size surface Storm date Alzada / MT
Jun 7, 2026
3.75" Signatures 3.75" Estimated 2.75"
3 ground reports Open report →
Estimated-size surface Storm date Alzada / MT
Jun 2, 2026
1.75" Signatures 1.75" Estimated 1.25"
No ground reports filed Open report →
Estimated-size surface Storm date Alzada / MT
Jun 1, 2026
1" Signatures 1" Estimated 1"
No ground reports filed Open report →
Estimated-size surface Storm date Alzada / MT
May 30, 2026
1.25" Signatures 1.25" Estimated 1"
No ground reports filed Open report →
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Set your territory and alerts today. When hail hits, use Overview to choose your streets and get moving.
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A storm day here is a convective day — it runs from noon to noon
UTC, so late-night hail is grouped with the afternoon storm that
spawned it rather than split across two calendar dates. Ground
reports are public-domain observations from the NOAA Storm
Prediction Center. Radar tells you where to look. Only an inspection confirms damage at an address. Last updated Sep 14, 2026.