Verified storm · closed
1.3–2" hail crossed Jefferson County, CO — August 23, 2025
Measured against the NOAA MRMS national radar feed on its 2-minute cycle — a verified event, not a forecast.
Storm stats
| County | Jefferson County, CO |
|---|---|
| Max hail (MESH) | 2" |
| Mean hail (MESH) | 1.3" |
| Swath area | 18 mi² (47 km²) |
| Radar cells (~1 km grid) | 80 |
| First radar detection | 2025-08-23 23:00 UTC |
| Last radar detection | 2025-08-24 00:00 UTC |
| Verified | 2025-08-23 23:00 UTC |
| Swath centroid | 39.5210, -105.3036 |
| Storm ID | sw_214a260b |
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