/ Storm field report · El Paso

Hail in Calhan · Sep 19, 2026

Hit 2 days ago

NEXRAD logged 0 hail signatures up to 0"; the estimated-size surface reached 0.75" aloft. Open it on the live map to see the swath over the streets.

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Peak hail signal 0.75" ≈ penny to nickel · radar-estimated size aloft
Homes in the hail footprint 71
Ground reports 0 none filed
Radar surfaces 2 NEXRAD + estimated size

Convective day · Sep 19, 2026 · noon–noon UTC

Severity

The 15th most severe storm Calhan has seen in the last 12 months

Composite score · 2.1 / 10
Storm severity score

Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.

2.1 /10
Peak hail signal
19 /100

Largest radar-indicated size — a signal of damage potential, not confirmation.

Homes exposed
37 /100

How many homes sit inside the storm's footprint.

Ground truth
0 /100

Independent storm reports filed with the NWS.

Evidence / storm surfaces

How Calhan saw the hail — from two instruments

Sep 19, 2026 · Calhan, CO

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.

NEXRAD radar signatures Surface resolved
NEXRAD radar-signature map of the hail storm over Calhan, CO on Sep 19, 2026 Radar signature field

The point detections NEXRAD recorded overhead. Each signature marks where the radar saw hail aloft — it is a detection, not a stone measured on the ground.

Max size 0" Detections 0
Radar-estimated hail size Surface resolved
Radar-estimated hail-size map of the storm over Calhan, CO on Sep 19, 2026 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.

Max size 0.75"

The storm in context

Where Sep 19, 2026 sits in Calhan's hail record.

This was Calhan's 25th recorded hail day, arriving 1 day after the Sep 18, 2026 storm. By severity it ranks 15th of the 26 storms we have logged here. Radar put the day's largest stone over Calhan at 0.75" — radar-estimated size aloft.

The Sep 19, 2026 convective day was bigger than Calhan: the same system put hail over 336 other tracked cities, 27 of them in Colorado. Nearest: Elbert (15 miles northwest, up to 0.75"); Agate (22 miles northeast, up to 1.5"); Kiowa (23 miles northwest, up to 1").

These maps are stills. In the app this date is one of 26 Calhan 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

No reports 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.

For this storm over Calhan, the NWS report log is empty — a common outcome, since ground reports only happen when someone witnesses the hail and takes the time to call it in. The detection record for the date lives in the radar maps above.

Near the severe threshold

What 0.75" hail means for Calhan roofs.

A signal this size sits near the National Weather Service severe threshold. Aging shingles and soft metals such as vents, flashing, and gutters may be more vulnerable; roof age, wind, and material condition all matter, and only an inspection can confirm damage.

Radar reading · not confirmed damage

Roofing exposure

What this storm is worth to a roofer.

71 homes × $12,000 avg. claim

Potential roof exposure

$852K

Potential roof exposure — 71 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.

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 $15 on top of the $150 plan.

Calhan hail history

Other storms in Calhan.

26 recorded storm days in Calhan, CO
← All hail in Calhan
Radar-estimated hail-size map of the storm over Calhan, CO on Sep 20, 2026 Estimated-size surface
Storm date Calhan / CO

Sep 20, 2026

0.75"
Estimated 0.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Calhan, CO on Sep 18, 2026 Estimated-size surface
Storm date Calhan / CO

Sep 18, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Calhan, CO on Aug 27, 2026 Estimated-size surface
Storm date Calhan / CO

Aug 27, 2026

1.25"
Estimated 1.25"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Calhan, CO on Aug 26, 2026 Estimated-size surface
Storm date Calhan / CO

Aug 26, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Calhan, CO on Aug 22, 2026 Estimated-size surface
Storm date Calhan / CO

Aug 22, 2026

1"
Estimated 1"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Calhan, CO on Aug 19, 2026 Estimated-size surface
Storm date Calhan / CO

Aug 19, 2026

1.25"
Estimated 1.25"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Calhan, CO on Aug 16, 2026 Estimated-size surface
Storm date Calhan / CO

Aug 16, 2026

1.25"
Estimated 1.25"
2 ground reports Open report →
Radar-estimated hail-size map of the storm over Calhan, CO on Aug 15, 2026 Estimated-size surface
Storm date Calhan / CO

Aug 15, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Calhan, CO on Aug 14, 2026 Estimated-size surface
Storm date Calhan / CO

Aug 14, 2026

1"
Estimated 1"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Calhan, CO on Jul 31, 2026 Estimated-size surface
Storm date Calhan / CO

Jul 31, 2026

2.75"
Signatures 2.75" Estimated 1.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Calhan, CO on Jul 28, 2026 Estimated-size surface
Storm date Calhan / CO

Jul 28, 2026

3.5"
Signatures 3.5" Estimated 1.75"
2 ground reports Open report →
Radar-estimated hail-size map of the storm over Calhan, CO on Jul 22, 2026 Estimated-size surface
Storm date Calhan / CO

Jul 22, 2026

No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Calhan, CO on Jul 10, 2026 Estimated-size surface
Storm date Calhan / CO

Jul 10, 2026

1"
Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Calhan, CO on Jul 8, 2026 Estimated-size surface
Storm date Calhan / CO

Jul 8, 2026

1"
Signatures 1"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Calhan, CO on Jun 26, 2026 Estimated-size surface
Storm date Calhan / CO

Jun 26, 2026

1.5"
Signatures 1.5" Estimated 1"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Calhan, CO on Jun 23, 2026 Estimated-size surface
Storm date Calhan / CO

Jun 23, 2026

2"
Estimated 2"
5 ground reports Open report →
Radar-estimated hail-size map of the storm over Calhan, CO on Jun 6, 2026 Estimated-size surface
Storm date Calhan / CO

Jun 6, 2026

0.5"
Signatures 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Calhan, CO on Jun 5, 2026 Estimated-size surface
Storm date Calhan / CO

Jun 5, 2026

1"
Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Calhan, CO on Jun 1, 2026 Estimated-size surface
Storm date Calhan / CO

Jun 1, 2026

1"
Signatures 1"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Calhan, CO on May 17, 2026 Estimated-size surface
Storm date Calhan / CO

May 17, 2026

0.75"
Signatures 0.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Calhan, CO on May 16, 2026 Estimated-size surface
Storm date Calhan / CO

May 16, 2026

0.75"
Signatures 0.75" Estimated 0.5"
No ground reports filed Open report →
NEXRAD radar-signature map of the hail storm over Calhan, CO on May 15, 2026 NEXRAD surface
Storm date Calhan / CO

May 15, 2026

0.5"
Signatures 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Calhan, CO on Apr 30, 2026 Estimated-size surface
Storm date Calhan / CO

Apr 30, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Calhan, CO on Apr 27, 2026 Estimated-size surface
Storm date Calhan / CO

Apr 27, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Calhan, CO on Jan 14, 2026 Estimated-size surface
Storm date Calhan / CO

Jan 14, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →

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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 21, 2026.