South Dakota · September 15, 2024

South Dakota hail map — September 15, 2024

NOAA radar detected hail of an inch or more over 1 South Dakota city on September 15, 2024. The largest stones — 1.00″, quarter size — fell over Rapid City.

Hail swath map for Rapid City, SD on September 15, 2024 showing 1.00 inch hail.
Swath over Rapid City on September 15, 2024 — 1.00″ hail. Each city below has its own map for this storm.
Cities hit
1
in South Dakota
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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South Dakota cities hit on September 15, 2024

Rapid City, SD1.00″ · quarter

What people on the ground measured in South Dakota on September 15, 2024

7 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.

  • 1.00″ quarter size NWS Employee
    2 E Dwtn Rapid City, SD11:24 PM CDTPennington County
  • 1.00″ quarter size Public
    4 ENE Dwtn Rapid City, SD11:25 PM CDTPennington County
  • 1.00″ quarter size Public
    4 E Dwtn Rapid City, SD11:25 PM CDTPennington County

    Copious amounts of hail.

  • 1.00″ quarter size Public
    3 E Dwtn Rapid City, SD11:30 PM CDTPennington County

    mPING report

  • 0.88″ penny size CoCoRaHS
    6 W Hermosa, SD10:55 PM CDTCuster County
  • 0.75″ penny size Public
    1 W Hermosa, SD11:05 PM CDTCuster County

    Wind gusts of 30 to 40 mph.

  • 0.75″ penny size Storm Chaser
    3 WSW Dwtn Rapid City, SD11:26 PM CDTPennington County

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.

Hail elsewhere on September 15, 2024

The full US hail map for September 15, 2024 →

Other South Dakota hail days

August 18, 20261 city · 1.50″August 16, 20261 city · 1.00″August 11, 20261 city · 1.00″August 7, 20261 city · 1.00″July 24, 20261 city · 1.00″July 6, 20261 city · 1.00″July 4, 20261 city · 1.00″July 1, 20261 city · 1.00″June 22, 20261 city · 1.50″May 24, 20261 city · 1.00″May 17, 20261 city · 1.50″February 28, 20261 city · 1.00″
Every hail day across South Dakota →
FAQ

South Dakota hail on September 15, 2024

NOAA radar put hail of an inch or more over 1 South Dakota city that day. The largest stones — 1.00 inches, quarter size — were over Rapid City. Every city hit is listed above with its own stone size.

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