How big was the hail on July 27, 2023?

The maximum estimated stone size anywhere in Minnesota that day was 1.50 inches. Sizes vary street to street inside a single swath, so a city's figure is the largest radar estimated anywhere within about 5 miles of it.

Does this mean roofs were damaged?

Radar measures stone size, not damage. Whether a particular roof was damaged depends on stone size, wind direction, roof age and material — only an inspection settles it. These figures tell you where it is worth looking.

How do I see the actual swath on a map?

A HailMate plan puts the whole of Minnesota on a real interactive map with this swath and three years of others already on it. $79/mo, and the canvassing tools come with it.

Minnesota · July 27, 2023

Minnesota hail map — July 27, 2023

Name: Minnesota hail map — July 27, 2023
Creator: HailMate

NOAA radar detected hail of an inch or more over 3 Minnesota cities on July 27, 2023. The largest stones — 1.50″, half dollar size — fell over Duluth.

Hail swath map for Duluth, MN on July 27, 2023 showing 1.50 inch hail. — Swath over Duluth on July 27, 2023 — 1.50″ hail. Each city below has its own map for this storm.

Cities hit: 3; in Minnesota
Largest stone: 1.50″; half dollar size
Impact rating: 5/10; from stone size

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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HailMate's canvassing map: hail swaths colour-banded by stone size, from yellow through red to purple, laid over a satellite view of a Texas territory, with hail swath and territory controls.

All of Minnesota at street level, with this storm already on it
Three years of hail swaths, filterable by stone size
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Homeowners

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This page covers Minnesota 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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Free, and no account needed to look it up. If hail did hit, you can ask for a free inspection from a vetted local roofer.

Minnesota cities hit on July 27, 2023

Duluth, MN1.50″ · half dollar Saint Cloud, MN1.00″ · quarter Mankato, MN1.00″ · quarter

What people on the ground measured in Minnesota on July 27, 2023

12 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.

2.00″ hen egg size Public
3 N Lester Park, MN3:25 PM CDTSt. Louis County
2.00″ hen egg size Public
3 N Lester Park, MN3:30 PM CDTSt. Louis County
2.00″ hen egg size Public
3 W French River, MN3:35 PM CDTSt. Louis County
2.00″ hen egg size Public
2 SW French River, MN3:50 PM CDTSt. Louis County
2.00″ hen egg size Public
2 SW French River, MN3:52 PM CDTSt. Louis County
Corrects previous hail report from 2 SW French River.
2.00″ hen egg size Public
Morgan, MN5:15 PM CDTRedwood County
Report sent via Facebook.
1.75″ golf ball size Public
7 NNE Center City, MN7:00 AM CDTChisago County
Delayed report, time esimated from radar. Hail quarter to golfball in Almelund, with some vehicle damage reported.
1.75″ golf ball size Public
3 NNE Lester Park, MN3:44 PM CDTSt. Louis County
1.75″ golf ball size Trained Spotter
4 ENE Willow River, MN4:45 PM CDTPine County
Heavy rain causing surface runoff and minor flooding.
1.50″ half dollar size Cocorahs
1 NW Island Lake, MN3:15 PM CDTSt. Louis County
CoCoRaHS station MN-SL-232.
1.50″ half dollar size Public
4 NE Rice Lake, MN3:25 PM CDTSt. Louis County
Corrects previous hail report from 4 NE Rice Lake.
1.50″ half dollar size Public
2 W French River, MN3:36 PM CDTSt. Louis County
Report from mPING: Ping Pong Ball (1.50 in.).

Showing the 12 largest of 52 hail reports filed that day.

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.

Other states hit on July 27, 2023

California3 cities · 2.00″Nebraska1 city · 2.00″Wisconsin1 city · 1.00″Idaho1 city · 1.00″

The full US hail map for July 27, 2023 →

Other Minnesota hail days

August 18, 20261 city · 1.00″July 4, 20261 city · 1.00″June 29, 20261 city · 1.00″June 19, 202614 cities · 1.00″June 10, 20261 city · 1.00″June 5, 20261 city · 1.50″April 17, 20262 cities · 1.00″April 13, 20265 cities · 2.00″September 21, 202516 cities · 2.00″August 15, 202534 cities · 2.00″August 9, 202523 cities · 1.00″July 28, 20251 city · 1.00″

Every hail day across Minnesota →

FAQ

Minnesota hail on July 27, 2023

NOAA radar put hail of an inch or more over 3 Minnesota cities that day. The largest stones — 1.50 inches, half dollar size — were over Duluth. Every city hit is listed above with its own stone size.

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