United States · August 15, 2026

Hail map — August 15, 2026

NOAA radar detected hail of an inch or more over 8 cities across 1 state on August 15, 2026. The largest stones — 1.50″, half dollar size — fell over Centennial, CO.

Hail swath map for Centennial, CO on August 15, 2026 showing 1.50 inch hail.
Largest rendered swath of the day: Centennial, CO 1.50″ hail. Each city below has its own map for this storm.
States hit
1
Cities hit
8
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.

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States hit on August 15, 2026

Every state where NOAA radar put an inch or more of hail over a city that day, biggest stone first.

What people on the ground measured in the US on August 15, 2026

6 reports filed with the National Weather Service3 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.

  • 1.75 golf ball size Public
    2 SSW Foxfield, CO2:19 PM MDTArapahoe County

    Some hail of up to golf ball size.

  • 1.50 half dollar size Trained Spotter
    12 NE Two Buttes, CO6:02 PM MDTProwers County

    Hail lasted about 15 minutes.

  • 1.25 half dollar size NWS Employee
    10 SE The Saunders Elev, KS7:22 PM CDTMorton County
  • 1.00 quarter size Public
    Unity, OR4:24 PM PDTBaker County

    Social media post by member of public; reported hail about quarter-sized.

  • 1.00 quarter size NWS Employee
    3 NNW Wilburton, KS6:28 PM CDTMorton County
  • 1.00 quarter size Public
    4 S Rush, CO5:49 PM MDTEl Paso County

    Report from mPING: Quarter (1.00 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

US hail on August 15, 2026

NOAA radar put hail of an inch or more over 8 cities across 1 state on August 15, 2026. The largest stones — 1.50 inches, half dollar size — were over Centennial, CO. Every state hit is listed on this page, and every city under it.

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