Watertown, WI

Hail map for Watertown, WI — April 14, 2026

NOAA radar detected hail up to 1.50″ — half dollar size — within 5 miles of Watertown on April 14, 2026.

Hail swath map for Watertown, WI on April 14, 2026 showing 1.50 inch hail.
Max hail size
1.50″
half dollar
Impact rating
5/10
from stone size
Size bands over the city
2
distinct radar bands
Reached the ground
70%
NOAA POSH probability
Measured on the ground
2.75″
2.6 mi away · Public

NOAA's Probability of Severe Hail peaked at 70% over Watertown 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.

Roofing contractors

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Homeowners

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This page covers Watertown 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 towns hit on April 14, 2026

Madison, WI2.00″Waterloo, IA2.00″Cedar Falls, IA2.00″Sun Prairie, WI2.00″Marion, IN2.00″Kokomo, IN1.50″Menomonee Falls, WI1.50″Duncan, OK1.50″Mequon, WI1.50″Cedar Rapids, IA1.00″Elgin, IL1.00″Arlington Heights, IL1.00″
Every Wisconsin city hit on April 14, 2026 →

Other hail dates for Watertown

July 27, 20261.00″September 22, 20251.00″April 18, 20251.00″April 27, 20241.00″
Every storm over Watertown →

What people on the ground measured in Watertown, WI on April 14, 2026

21 reports filed with the National Weather Service — 1 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.

  • 2.75″ baseball size Public
    2 SE Watertown, WI · 2.6 mi away5:57 PM CDTJefferson County
  • 1.75″ golf ball size NWS Employee
    Watertown, WI · 0.6 mi away5:52 PM CDTJefferson County
  • 1.75″ golf ball size Public
    4 S Watertown, WI · 3.8 mi away5:48 PM CDTJefferson County

    Report from mPING: Golf Ball (1.75 in.).

  • 1.50″ half dollar size Public
    4 NW Lake Mills, WI · 12.8 mi away6:01 PM CDTJefferson County

    Report from mPING: Ping Pong Ball (1.50 in.).

  • 1.25″ half dollar size Public
    Watertown, WI · 0.3 mi away5:50 PM CDTJefferson County

    Photo from social media with a quarter for comparison.

  • 1.00″ quarter size Public
    Watertown, WI · 0.3 mi away5:47 PM CDTJefferson County

    Report from mPING: Quarter (1.00 in.).

  • 1.00″ quarter size Public
    1 NW Watertown, WI · 0.7 mi away6:19 PM CDTDodge County

    Verified via photo with coins from social media.

  • 1.00″ quarter size Public
    1 N Watertown, WI · 1.1 mi away5:49 PM CDTDodge County

    Report from mPING: Quarter (1.00 in.).

  • 1.00″ quarter size Public
    1 W Oconomowoc, WI · 12.0 mi away6:06 PM CDTWaukesha County

    Report from mPING: Quarter (1.00 in.).

  • 1.00″ quarter size Public
    4 NW Lake Mills, WI · 12.8 mi away6:00 PM CDTJefferson County

    Report from mPING: Quarter (1.00 in.).

  • 1.00″ quarter size Public
    Waterloo, WI · 13.2 mi away5:48 PM CDTJefferson County

    Report from mPING: Quarter (1.00 in.).

  • 1.00″ quarter size Public
    Waterloo, WI · 13.2 mi away5:56 PM CDTJefferson County

    Report from mPING: Quarter (1.00 in.).

  • 0.75″ penny size Public
    Watertown, WI · 0.3 mi away5:43 PM CDTJefferson County

    Report from mPING: Dime (0.75 in.).

  • 0.75″ penny size Public
    1 SW Watertown, WI · 1.0 mi away5:31 PM CDTJefferson County

    Report from mPING: Dime (0.75 in.).

  • 0.75″ penny size Public
    4 NW Lake Mills, WI · 12.8 mi away4:54 PM CDTJefferson County

    Report from mPING: Dime (0.75 in.).

  • 0.75″ penny size Public
    4 NW Lake Mills, WI · 12.8 mi away4:56 PM CDTJefferson County

    Report from mPING: Dime (0.75 in.).

  • 0.75″ penny size Public
    4 NW Lake Mills, WI · 12.8 mi away5:25 PM CDTJefferson County

    Report from mPING: Dime (0.75 in.).

  • 0.50″ penny size Public
    2 NW Watertown, WI · 1.5 mi away5:40 PM CDTDodge County

    Report from mPING: Half-inch (0.50 in.).

  • 0.50″ penny size Public
    4 N Johnson Creek, WI · 4.7 mi away5:19 PM CDTJefferson County

    Report from mPING: Half-inch (0.50 in.).

  • 0.50″ penny size Public
    Waterloo, WI · 13.2 mi away5:40 PM CDTJefferson County

    Report from mPING: Half-inch (0.50 in.).

  • 0.50″ penny size Public
    Waterloo, WI · 13.2 mi away5:20 PM CDTJefferson County

    Report from mPING: Half-inch (0.50 in.).

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.

FAQ

Watertown hail on April 14, 2026

NOAA radar estimated stones up to 1.50 inches — half dollar size — within about 5 miles of Watertown that day, across 2 distinct size bands. Sizes vary street to street inside a single swath.

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