United States · September 13, 2023

Hail map — September 13, 2023

NOAA radar detected hail of an inch or more over 2 cities across 2 states on September 13, 2023. The largest stones — 2.00″, hen egg size — fell over Rapid City, SD.

Hail swath map for Rapid City, SD on September 13, 2023 showing 2.00 inch hail.
Largest rendered swath of the day: Rapid City, SD — 2.00″ hail. Each city below has its own map for this storm.
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States hit
2
Cities hit
2
Largest stone
2.00″
hen egg size
Impact rating
7/10
from stone size

Sizes come from NOAA radar, which runs about ±0.25″ against ground truth. It is canvass-targeting quality, not claim evidence.

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States hit on September 13, 2023

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 September 13, 2023

10 reports filed with the National Weather Service — 3 from trained observers 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
    4 W Hermosa, SD6:29 PM CDTCuster County

    Multiple reports of hail near golf ball size

  • 1.00″ quarter size Public
    3 ESE Rockerville, SD5:30 PM CDTPennington County

    Mostly smaller, a few to quarter size

  • 1.00″ quarter size Fire Dept/Rescue
    Hildale, UT5:00 PM MDTWashington County

    Hildale Fire Dispatch reported quarter size hail lasting about 10 minutes. Windshields were broken, vegetation was shredded, and hail accumulated up to 3 inches deep in some spots. Flash Flooding also occurred.

  • 1.00″ quarter size Trained Spotter
    1 SSE Cottonwood-Verde, AZ5:43 PM MSTYavapai County

    Hail, very heavy rain, and local flooding in area. Quarter sized hail reported.

  • 0.88″ penny size Trained Spotter
    2 ESE Scottsdale, AZ6:53 AM MSTMaricopa County

    Delayed Report. Nickel sized hail in Scottsdale near the 101 Freeway and Thomas Rd.

  • 0.50″ penny size Public
    4 S Dwtn Rapid City, SD5:38 PM CDTPennington County
  • 0.50″ penny size Public
    1 NE Deadwood, SD9:42 PM CDTLawrence County
  • 0.25″ penny size Trained Spotter
    1 NNE Scottsdale, AZ6:50 AM MSTMaricopa County

    Pea-sized hail from early morning storm.

  • 0.25″ penny size Public
    5 SW Orange Tree, FL2:42 PM EDTCollier County

    At 2:42PM, a member of the public reported pea size hail near Golden Gate Boulevard between 9th and 19th Streets.

  • 0.25″ penny size Public
    4 SE Marlow, GA6:23 PM EDTEffingham County

    A HAM radio operator relayed a report of pea size hail near the intersection of Blue Jay Road and Midland Road.

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 September 13, 2023

NOAA radar put hail of an inch or more over 2 cities across 2 states on September 13, 2023. The largest stones — 2.00 inches, hen egg size — were over Rapid City, SD. Every state hit is listed on this page, and every city under it.

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