Hail map for Crystal Lake, IL — August 16, 2025
NOAA radar detected hail up to 2.00″ — hen egg size — within 5 miles of Crystal Lake on August 16, 2025.
- Max hail size
- 2.00″
- hen egg
- Impact rating
- 7/10
- from stone size
- Size bands over the city
- 3
- distinct radar bands
- Reached the ground
- 50%
- NOAA POSH probability
- Measured on the ground
- 1.50″
- 5.0 mi away · Public
NOAA's Probability of Severe Hail peaked at 50% over Crystal Lake that day — moderate: severe hail likely reached the ground somewhere nearby. It is a separate model from the size estimate above: one asks how big the stones were in the storm, the other asks whether they made it down.
Sizes come from NOAA MRMS radar (MESH), which runs about ±0.25″ against ground truth. It is canvass-targeting quality, not claim evidence.
Work Crystal Lake on the live hail map
- The whole state around Crystal Lake, with this swath already on it
- Three years of hail swaths, filterable by stone size
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Did hail hit your address?
This page covers Crystal Lake as a whole. Check your own address to see every storm on record for your roof — the date and the stone size for each one — and we'll email you the full report to keep.
Check my addressFree, and no account needed to look it up. If hail did hit, you can ask for a free inspection from a vetted local roofer.
Other towns hit on August 16, 2025
Other hail dates for Crystal Lake
Every storm over Crystal Lake →What people on the ground measured in Crystal Lake, IL on August 16, 2025
3 reports filed with the National Weather Service. These are measured stones, not radar estimates, so they are the closest thing to proof that hail actually reached the ground.
- 1.50″ half dollar size Public1 SW Port Barrington, IL · 5.0 mi away4:04 PM CDTMcHenry County
Relayed via mping.
- 1.25″ half dollar size PublicCary, IL · 4.9 mi away4:05 PM CDTMcHenry County
Relayed via mping.
- 1.00″ quarter size PublicWoodstock, IL · 7.9 mi away3:51 PM CDTMcHenry County
Relayed via mping.
Reports come from the National Weather Service Local Storm Report feed, ingested every 15 minutes. A report records where the observer was, not the full extent of the swath — treat it as evidence about the storm, not about any one roof.
Crystal Lake hail on August 16, 2025
NOAA radar estimated stones up to 2.00 inches — hen egg size — within about 5 miles of Crystal Lake that day, across 3 distinct size bands. Sizes vary street to street inside a single swath.