Hail map for Waterloo, IA — April 14, 2026
NOAA radar detected hail up to 2.00″ — hen egg size — within 5 miles of Waterloo on April 14, 2026.
- 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
- 70%
- NOAA POSH probability
- Measured on the ground
- 2.50″
- 0.8 mi away · Public
NOAA's Probability of Severe Hail peaked at 70% over Waterloo that day — high: around even odds of 1″ hail reaching the ground. 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.
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- The whole state around Waterloo, with this swath already on it
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This page covers Waterloo 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.
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Other hail dates for Waterloo
Every storm over Waterloo →What people on the ground measured in Waterloo, IA on April 14, 2026
12 reports filed with the National Weather Service — 9 from trained spotters or officials. These are measured stones, not radar estimates, so they are the closest thing to proof that hail actually reached the ground.
- 2.50″ hen egg size Public1 ENE Waterloo, IA · 0.8 mi away4:24 PM CDTBlack Hawk County
Estimated in comparison to tennis ball. Time estimated from radar.
- 2.00″ hen egg size Trained Spotter1 SW Waterloo, IA · 1.2 mi away4:29 PM CDTBlack Hawk County
- 2.00″ hen egg size Trained Spotter1 SSE Cedar Falls, IA · 5.0 mi away4:34 PM CDTBlack Hawk County
- 1.75″ golf ball size Trained Spotter1 ENE Waterloo, IA · 0.8 mi away4:21 PM CDTBlack Hawk County
- 1.75″ golf ball size Trained Spotter3 N Raymond, IA · 6.3 mi away4:35 PM CDTBlack Hawk County
- 1.75″ golf ball size Emergency MngrJesup, IA · 14.0 mi away5:48 PM CDTBuchanan County
EM report from Jesup. Time estimated from radar.
- 1.50″ half dollar size Trained Spotter3 W Waterloo, IA · 3.4 mi away4:20 PM CDTBlack Hawk County
Delayed report - time estimated from radar.
- 1.00″ quarter size Trained Spotter1 WSW Cedar Falls, IA · 6.6 mi away4:15 PM CDTBlack Hawk County
- 1.00″ quarter size Public1 W Cedar Falls, IA · 6.8 mi away4:12 PM CDTBlack Hawk County
- 1.00″ quarter size Trained Spotter2 SSE Hudson, IA · 8.4 mi away6:18 PM CDTBlack Hawk County
- 1.00″ quarter size PublicJesup, IA · 14.0 mi away5:48 PM CDTBuchanan County
Report from mPING: Quarter (1.00 in.).
- 1.00″ quarter size Trained SpotterDike, IA · 14.8 mi away4:00 PM CDTGrundy County
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.
Waterloo hail on April 14, 2026
NOAA radar estimated stones up to 2.00 inches — hen egg size — within about 5 miles of Waterloo that day, across 3 distinct size bands. Sizes vary street to street inside a single swath.