{"date":"2026-08-15","county":"Jefferson","state":"Colorado","page":"https://www.myhailscore.com/storm/2026-08-15/jefferson-county-co","license":"Free to cite with attribution to HailScore (myhailscore.com). Underlying weather data: NOAA (public domain).","disclaimer":"Hail exposure record, not a damage determination. Radar-estimated sizes carry roughly a ±0.25 inch margin versus ground measurements.","status":"preliminary","echoTrimmedFromDate":"2026-08-14","echoTrimmedCellCount":2,"echoTrimmedNote":"2 radar cell(s) in this date's MRMS bucket were the 2026-08-14 storm still inside the trailing 24-hour maximum, and are excluded here so this record describes only the hail that fell on 2026-08-15. Those cells are published at https://www.myhailscore.com/storm/2026-08-14/jefferson-county-co.","source":"NOAA Multi-Radar/Multi-Sensor (MRMS) MESH — radar-estimated, not ground-verified","upgradeNote":"Ground-verified NOAA Storm Events records typically publish 2-4 months later; this record upgrades automatically when they do.","maxHailSizeInchesRadarEstimated":1.96,"radarCellCount":56,"firstCellUtc":"2026-08-15T19:30:00.000Z","lastCellUtc":"2026-08-15T20:00:00.000Z","affectedCities":["Morrison","Evergreen"],"cells":[{"hailSizeInchesRadarEstimated":1.9566929,"timeUtc":"2026-08-15T20:00:00.000Z","lat":39.595,"lon":-105.165,"nearestCity":"Morrison"},{"hailSizeInchesRadarEstimated":1.9094489,"timeUtc":"2026-08-15T20:00:00.000Z","lat":39.595,"lon":-105.155,"nearestCity":"Morrison"},{"hailSizeInchesRadarEstimated":1.8858268,"timeUtc":"2026-08-15T19:30:00.000Z","lat":39.605,"lon":-105.195,"nearestCity":"Morrison"},{"hailSizeInchesRadarEstimated":1.8622047,"timeUtc":"2026-08-15T20:00:00.000Z","lat":39.595,"lon":-105.175,"nearestCity":"Morrison"},{"hailSizeInchesRadarEstimated":1.8188976,"timeUtc":"2026-08-15T20:00:00.000Z","lat":39.605,"lon":-105.165,"nearestCity":"Morrison"},{"hailSizeInchesRadarEstimated":1.8031496,"timeUtc":"2026-08-15T20:00:00.000Z","lat":39.605,"lon":-105.175,"nearestCity":"Morrison"},{"hailSizeInchesRadarEstimated":1.6771654,"timeUtc":"2026-08-15T20:00:00.000Z","lat":39.605,"lon":-105.155,"nearestCity":"Morrison"},{"hailSizeInchesRadarEstimated":1.5984251,"timeUtc":"2026-08-15T20:00:00.000Z","lat":39.605,"lon":-105.185,"nearestCity":"Morrison"},{"hailSizeInchesRadarEstimated":1.5944881,"timeUtc":"2026-08-15T19:30:00.000Z","lat":39.605,"lon":-105.205,"nearestCity":"Morrison"},{"hailSizeInchesRadarEstimated":1.5511811,"timeUtc":"2026-08-15T20:00:00.000Z","lat":39.595,"lon":-105.145,"nearestCity":"Morrison"},{"hailSizeInchesRadarEstimated":1.5472441,"timeUtc":"2026-08-15T19:30:00.000Z","lat":39.605,"lon":-105.225,"nearestCity":"Morrison"},{"hailSizeInchesRadarEstimated":1.5433071,"timeUtc":"2026-08-15T19:30:00.000Z","lat":39.615,"lon":-105.185,"nearestCity":"Morrison"},{"hailSizeInchesRadarEstimated":1.535433,"timeUtc":"2026-08-15T20:00:00.000Z","lat":39.605,"lon":-105.145,"nearestCity":"Morrison"},{"hailSizeInchesRadarEstimated":1.535433,"timeUtc":"2026-08-15T20:00:00.000Z","lat":39.615,"lon":-105.175,"nearestCity":"Morrison"},{"hailSizeInchesRadarEstimated":1.519685,"timeUtc":"2026-08-15T20:00:00.000Z","lat":39.595,"lon":-105.185,"nearestCity":"Morrison"},{"hailSizeInchesRadarEstimated":1.492126,"timeUtc":"2026-08-15T20:00:00.000Z","lat":39.595,"lon":-105.195,"nearestCity":"Morrison"},{"hailSizeInchesRadarEstimated":1.484252,"timeUtc":"2026-08-15T19:30:00.000Z","lat":39.595,"lon":-105.205,"nearestCity":"Morrison"},{"hailSizeInchesRadarEstimated":1.4212599,"timeUtc":"2026-08-15T19:30:00.000Z","lat":39.595,"lon":-105.215,"nearestCity":"Morrison"},{"hailSizeInchesRadarEstimated":1.4212599,"timeUtc":"2026-08-15T20:00:00.000Z","lat":39.605,"lon":-105.135,"nearestCity":"Morrison"},{"hailSizeInchesRadarEstimated":1.4173229,"timeUtc":"2026-08-15T20:00:00.000Z","lat":39.615,"lon":-105.165,"nearestCity":"Morrison"},{"hailSizeInchesRadarEstimated":1.4133859,"timeUtc":"2026-08-15T19:30:00.000Z","lat":39.605,"lon":-105.265,"nearestCity":"Evergreen"},{"hailSizeInchesRadarEstimated":1.4094489,"timeUtc":"2026-08-15T19:30:00.000Z","lat":39.605,"lon":-105.215,"nearestCity":"Morrison"},{"hailSizeInchesRadarEstimated":1.4094489,"timeUtc":"2026-08-15T20:00:00.000Z","lat":39.585,"lon":-105.165,"nearestCity":"Morrison"},{"hailSizeInchesRadarEstimated":1.3661417,"timeUtc":"2026-08-15T20:00:00.000Z","lat":39.585,"lon":-105.155,"nearestCity":"Morrison"},{"hailSizeInchesRadarEstimated":1.3543307,"timeUtc":"2026-08-15T20:00:00.000Z","lat":39.585,"lon":-105.175,"nearestCity":"Morrison"},{"hailSizeInchesRadarEstimated":1.3425196,"timeUtc":"2026-08-15T19:30:00.000Z","lat":39.615,"lon":-105.225,"nearestCity":"Morrison"},{"hailSizeInchesRadarEstimated":1.3346456,"timeUtc":"2026-08-15T19:30:00.000Z","lat":39.615,"lon":-105.215,"nearestCity":"Morrison"},{"hailSizeInchesRadarEstimated":1.2992126,"timeUtc":"2026-08-15T19:30:00.000Z","lat":39.605,"lon":-105.235,"nearestCity":"Morrison"},{"hailSizeInchesRadarEstimated":1.2677165,"timeUtc":"2026-08-15T19:30:00.000Z","lat":39.605,"lon":-105.255,"nearestCity":"Evergreen"},{"hailSizeInchesRadarEstimated":1.2559055,"timeUtc":"2026-08-15T19:30:00.000Z","lat":39.615,"lon":-105.205,"nearestCity":"Morrison"},{"hailSizeInchesRadarEstimated":1.2440945,"timeUtc":"2026-08-15T19:30:00.000Z","lat":39.605,"lon":-105.245,"nearestCity":"Evergreen"},{"hailSizeInchesRadarEstimated":1.2440945,"timeUtc":"2026-08-15T19:30:00.000Z","lat":39.615,"lon":-105.195,"nearestCity":"Morrison"},{"hailSizeInchesRadarEstimated":1.2401575,"timeUtc":"2026-08-15T20:00:00.000Z","lat":39.605,"lon":-105.125,"nearestCity":"Morrison"},{"hailSizeInchesRadarEstimated":1.2165354,"timeUtc":"2026-08-15T20:00:00.000Z","lat":39.595,"lon":-105.135,"nearestCity":"Morrison"},{"hailSizeInchesRadarEstimated":1.2165354,"timeUtc":"2026-08-15T20:00:00.000Z","lat":39.615,"lon":-105.155,"nearestCity":"Morrison"},{"hailSizeInchesRadarEstimated":1.2007874,"timeUtc":"2026-08-15T19:30:00.000Z","lat":39.585,"lon":-105.195,"nearestCity":"Morrison"},{"hailSizeInches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