La Junta, CO Hail Storm – September 2026

La Junta, Colorado experienced severe hail on September 19, 2026, producing a peak 2.8-inch hailstone during a multi-alert late-afternoon to early-evening storm. The event is concluded.

What Happened

Seven NWS alerts were issued for the La Junta metro as the storm moved through on Sept. 19. The sequence began in the mid-afternoon and extended into the early evening, with a mix of radar-detected hail and NWS warning-only alerts.

• September 19 · 3:14 PM MDT (21:14 UTC) – 2.21 inches – dual-polarization radar detection
• September 19 · 4:19 PM MDT (22:19 UTC) – 1.43 inches – dual-polarization radar detection
• September 19 · 4:37 PM MDT (22:37 UTC) – 1.55 inches – dual-polarization radar detection
• September 19 · 4:54 PM MDT (22:54 UTC) – 0.75 inches – NWS warning only
• September 19 · 6:04 PM MDT (00:04 UTC) – 1.25 inches – dual-polarization radar detection
• September 19 · 6:34 PM MDT (00:34 UTC) – 0.75 inches – NWS warning only
• September 19 · 7:45 PM MDT (01:45 UTC) – 0.75 inches – NWS warning only

Four alerts contained dual-polarization NEXRAD hail detections. Three alerts were NWS warning only and did not include radar hail returns. The alerts collectively define the multi-zone aggregate track across the metro.

Damage Assessment

Radar and alert data show hail sizes across a range from 0.75 to 2.8 inches. Hail at the lower end of the range, roughly 0.75 inches (penny = 0.75"), typically causes cosmetic paint and light denting on vehicles and minor shingle granule loss. Mid-range stones of 1.25 to 1.75 inches can dent vehicle panels, crack single-pane glass, and accelerate roof wear.

The peak measured stone at 2.8 inches slightly exceeds the baseball reference size (baseball = 2.75"). Hail of that size is capable of producing structural roof damage, puncturing skylights, damaging HVAC units and solar panels, and causing significant panel and windshield breakage on exposed vehicles. Where radar-detected hail overlaps developed property, expect a higher probability of these outcomes compared with areas that received only NWS warning-only reports.

What Contractors Should Know

Perform a rapid exterior triage in the areas identified by the alert sequence. Photograph and geotag damaged elements before any repair work. Prioritize temporary weatherproofing for open roofing, torn siding, and broken windows. Record hail sizes observed at each structure and compare them to the radar-detected alerts in your work area.

Follow with a full roof and exterior inspection once surfaces are safe to access. Inspect shingles for bruising and granule loss, check flashing and penetrations, and document impact patterns on vehicles and equipment. Prepare separate line-item estimates for cosmetic repair versus full replacement when hail sizes exceed 2.5 inches. Coordinate findings with property owners and insurers using time-stamped photos and the alert timeline.