Haswell, CO Hail Storm – August 2026

Haswell, CO experienced a multi-zone hail event on August 13, 2026, producing a peak 2.11-inch hailstone and triggering multiple NWS alerts in the late afternoon and early evening.

What Happened

The storm produced six NWS alerts between late afternoon and early evening and concluded the same night. Timeline of official alerts follows with local times.

• August 13 · 4:30 PM MDT (22:30 UTC) – 1.55-inch hail reported by dual-polarization radar (NEXRAD) hail detection.
• August 13 · 4:54 PM MDT (22:54 UTC) – 2.00-inch hail detected by dual-polarization radar (NEXRAD) hail detection.
• August 13 · 5:41 PM MDT (23:41 UTC) – 0.88-inch hail noted in an NWS warning-only alert.
• August 13 · 6:14 PM MDT (00:14 UTC) – 1.00-inch hail noted in an NWS warning-only alert.
• August 13 · 7:01 PM MDT (01:01 UTC) – 1.33-inch hail detected by dual-polarization radar (NEXRAD) hail detection.
• August 13 · 7:57 PM MDT (01:57 UTC) – 0.88-inch hail noted in an NWS warning-only alert.

Dual-polarization radar detections and repeated NWS warning-only alerts indicate multiple hail-producing cells tracked through the Haswell metro area. The sequence shows periods of stronger radar-detected hail followed by warning-only alerts as cells evolved and shifted.

Damage Assessment

Radar-detected hail exceeded 1.5 inches on at least two radar calls and included smaller reports below 1 inch. Hail in the 1 to 2-inch range commonly damages asphalt shingles, breaks skylights, dents metal panels, and leaves telltale dimples on vehicle surfaces. Hail below 1 inch can still abrade paint and damage unprotected agricultural produce.

Given the alert pattern through late afternoon and early evening, exposure was likely highest for parked vehicles and unshielded rooftop equipment near the main road corridors around Haswell. Property owners should expect scattered impact signatures rather than a uniform swath across the entire NWS warning area. If field inspections find broken panels, split shingles, or concentrated denting on the windward sides of structures and vehicles, document locations, object orientation, and timestamps for claims and repairs.

What Contractors Should Know

Inspect roofs for fractured shingles, loss of granules, and localized fractures at hip and ridge lines. Check metal flashings, gutters, HVAC housings, and solar panels for dents and punctures. Use a calibrated ruler or hail gauge in photographs for scale. Photograph damage from multiple angles and include a dated timestamp and a recognizable landmark or address in frame.

For vehicle and siding work, catalogue dent sizes and locations and note whether dents penetrate coatings. Prioritize repairs where water intrusion or compromised structural fasteners are present. Record the local alert timeline and radar-detected hail sizes for each property file to support adjuster reviews. For precise hail track and per-property impact mapping, consult the paid Strike Map product.