Tornado Rating unknown
5 NNE North Sterling Re Logan County
“Documented a brief rope tornado west of Padroni. (BOU)”
— NOAA / SPC storm report
/ Storm field report · Logan
Hail in Sterling · Aug 12, 2026
Hit 33 days ago
NEXRAD logged 0 hail signatures up to 0"; the estimated-size surface reached 1.75" aloft. Open it on the live map to see the swath over the streets.
A tornado was also reported to the National Weather Service during this storm. The ground reports below show where it was filed.
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.
Peak hail signal 1.75" ≈ golf ball · radar-estimated size aloft
Homes in the hail footprint 888
Ground reports 3 2 wind · 1 tornado
Radar surfaces 2 NEXRAD + estimated size
Convective day · Aug 12, 2026 · noon–noon UTC
Severity
The 7th most severe storm Sterling has seen in the last 12 months
Composite score · 5.1 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
5.1 /10
- Peak hail signal
- 44 /100
- Homes exposed
- 59 /100
- Ground truth
- 67 /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 Sterling saw the hail — from two instruments
Aug 12, 2026 · Sterling, CO
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.
NEXRAD radar signatures Surface resolved
Radar signature field Where NEXRAD flagged hail as the storm passed — point signatures from the radar, which indicate hail overhead rather than confirm what landed.
Max size
0"
Detections
0
Radar-estimated hail size Surface resolved
Estimated size field 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.
Max size
1.75"
The storm in context
Where Aug 12, 2026 sits in Sterling's hail record.
This was Sterling's 19th recorded hail day, arriving 15 days after the Jul 28, 2026 storm. By severity it ranks 7th of the 24 storms we have logged here. Radar put the day's largest stone over Sterling at 1.75" — radar-estimated size aloft.
The Aug 12, 2026 convective day was bigger than Sterling: the same system put hail over 507 other tracked cities, 13 of them in Colorado. Nearest: Iliff (17 miles northeast, up to 1"); Fleming (18 miles east, up to 0.5"); Otis (19 miles southeast, up to 0.75").
These maps are stills. In the app this date is one of 24 Sterling 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
3 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.
Tornado reports
1 reportWind reports
2 reports Wind gust 75 mph
2 NE North Sterling Res Logan County
“(BOU)”
— NOAA / SPC storm report
Wind gust 64 mph
3 E North Sterling Rese Logan County
“(BOU)”
— NOAA / SPC storm report
Storm 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.
Hail was reported over 12 minutes, from to .
Reports came from North Sterling Res, North Sterling Rese, and North Sterling Re — beyond Sterling itself.
High damage potential
What 1.75" hail means for Sterling 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.
888 homes × $12,000 avg. claim
Potential roof exposure
$11M
Potential roof exposure — 888 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 4 jobs
- Illustrative work
- ~$60K
Close just 0.5% of the 888 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
August 2028
Claims from this storm can typically be filed until around August 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 $186 on top of the $150 plan.
Sterling hail history
Other storms in Sterling.
24 recorded storm days in Sterling, CO
Estimated-size surface Storm date Sterling / CO
Sep 5, 2026
2" Estimated 2"
1 ground report Open report →
Estimated-size surface Storm date Sterling / CO
Aug 26, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Sterling / CO
Aug 25, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Sterling / CO
Aug 15, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Sterling / CO
Aug 14, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Sterling / CO
Jul 28, 2026
4" Signatures 4" Estimated 3"
No ground reports filed Open report →
Estimated-size surface Storm date Sterling / CO
Jul 22, 2026
1" Signatures 1" Estimated 1"
5 ground reports Open report →
Estimated-size surface Storm date Sterling / CO
Jul 4, 2026
1.25" Signatures 1.25" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Sterling / CO
Jul 3, 2026
2.5" Signatures 2.5" Estimated 1.75"
1 ground report Open report →
Estimated-size surface Storm date Sterling / CO
Jul 2, 2026
2.75" Signatures 2.75" Estimated 1.25"
2 ground reports Open report →
Estimated-size surface Storm date Sterling / CO
Jun 30, 2026
4" Signatures 4" Estimated 3"
4 ground reports Open report →
Estimated-size surface Storm date Sterling / CO
Jun 23, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Sterling / CO
Jun 22, 2026
2.75" Estimated 2.75"
9 ground reports Open report →
Estimated-size surface Storm date Sterling / CO
Jun 21, 2026
1.5" Estimated 1.5"
2 ground reports Open report →
Estimated-size surface Storm date Sterling / CO
Jun 9, 2026
1" Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Sterling / CO
Jun 8, 2026
1" Signatures 1" Estimated 0.5"
1 ground report Open report →
NEXRAD surface Storm date Sterling / CO
Jun 4, 2026
0.75" Signatures 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Sterling / CO
Jun 1, 2026
1" Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Sterling / CO
May 30, 2026
1" Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Sterling / CO
May 29, 2026
No ground reports filed Open report →
Estimated-size surface Storm date Sterling / CO
May 21, 2026
1" Estimated 1"
No ground reports filed Open report →
Estimated-size surface Storm date Sterling / CO
May 16, 2026
2.25" Signatures 2.25" Estimated 1.25"
No ground reports filed Open report →
Estimated-size surface Storm date Sterling / CO
May 9, 2026
1" Signatures 1" Estimated 0.75"
No ground reports filed Open report →
Take your next area into the field.
See the hail, review your recommendations, and canvass with Overview on iPhone.
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.
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 6, 2026.