Iowa · August 12, 2026

Iowa hail map — August 12, 2026

NOAA radar detected hail of an inch or more over 2 Iowa cities on August 12, 2026. The largest stones — 1.00″, quarter size — fell over Iowa City.

Hail swath map for Iowa City, IA on August 12, 2026 showing 1.00 inch hail.
Swath over Iowa City on August 12, 2026 — 1.00″ hail. Each city below has its own map for this storm.
Cities hit
2
in Iowa
Largest stone
1.00″
quarter size
Impact rating
3/10
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.

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Iowa cities hit on August 12, 2026

Iowa City, IA1.00″ · quarterCoralville, IA1.00″ · quarter

What people on the ground measured in Iowa on August 12, 2026

7 reports filed with the National Weather Service — 4 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.

  • 1.25″ half dollar size Public
    1 SSW New London, IA7:30 AM CDTHenry County

    Damage to solid fencing material. Picture on social media.

  • 1.00″ quarter size CO-OP Observer
    1 S Belle Plaine, IA4:40 AM CDTBenton County

    Time estimated.

  • 1.00″ quarter size Trained Spotter
    Belle Plaine, IA4:41 AM CDTBenton County

    Nickel to Quarter size hail reported.

  • 0.88″ penny size Trained Spotter
    1 W Belle Plaine, IA4:55 AM CDTBenton County

    Delayed report.

  • 0.70″ penny size Trained Spotter
    New London, IA7:29 AM CDTHenry County

    Occurring right now.

  • 0.50″ penny size Public
    2 NW East Amana, IA5:30 AM CDTIowa County
  • 0.50″ penny size Trained Spotter
    2 NW East Amana, IA5:53 AM CDTIowa County

    Delayed report.

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 August 12, 2026

Wyoming1 city · 1.50″Missouri1 city · 1.50″Georgia1 city · 1.00″Indiana1 city · 1.00″New York2 cities · 1.00″California1 city · 1.00″Ohio1 city · 1.00″
The full US hail map for August 12, 2026 →

Other Iowa hail days

August 7, 20262 cities · 1.00″July 27, 20263 cities · 1.00″July 21, 20261 city · 1.00″July 20, 20267 cities · 1.50″July 4, 20261 city · 1.00″July 3, 20263 cities · 1.00″July 2, 20267 cities · 1.00″July 1, 20261 city · 1.50″June 30, 20261 city · 1.00″June 28, 20262 cities · 1.00″June 17, 20261 city · 1.00″June 13, 20261 city · 1.00″
Every hail day across Iowa →
FAQ

Iowa hail on August 12, 2026

NOAA radar put hail of an inch or more over 2 Iowa cities that day. The largest stones — 1.00 inches, quarter size — were over Iowa City. Every city hit is listed above with its own stone size.

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