Pennsylvania hail map — September 21, 2024
NOAA radar detected hail of an inch or more over 2 Pennsylvania cities on September 21, 2024. The largest stones — 1.00″, quarter size — fell over Harrisburg.
- Cities hit
- 2
- in Pennsylvania
- 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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Pennsylvania cities hit on September 21, 2024
What people on the ground measured in Pennsylvania on September 21, 2024
12 reports filed with the National Weather Service — 5 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 Trained Spotter4 NE Denton Hill State, PA7:25 PM EDTPotter County
Max size 2 inch measured oblong shaped hail fell for 30 minutes covering the yard with accumulation of 1-2 inches of solid cover hail.
- 1.75″ golf ball size Public2 S Parkville, PA1:17 AM EDTYork County
Multiple reports of golf ball size hail on the south side of Hanover.
- 1.50″ half dollar size Public1 N Manchester, PA11:48 PM EDTYork County
Ping Pong Ball size hail.
- 1.25″ half dollar size Emergency Mngr3 WSW Ulysses, PA7:08 PM EDTPotter County
Hail covering the ground on Route 49 in Ulysses Twp.
- 1.00″ quarter size 911 Call Center2 E Point Marion, PA3:05 PM EDTFayette County
Numerous trees and wires down.
- 1.00″ quarter size Emergency Mngr4 ESE Point Marion, PA3:09 PM EDTFayette County
- 0.88″ penny size PUBLIC1 WSW RUTHERFORD HEIGHT, PA9:57 PM EDTDAUPHIN County
- 0.75″ penny size Public1 SSW Colonial Park, PA10:17 AM EDTDauphin County
Reports of dime to penny sized hail.
- 0.75″ penny size Trained SpotterShinglehouse, PA7:55 PM EDTPotter County
Hail during heavy rainfall downpour.
- 0.75″ penny size Public1 SSW Colonial Park, PA10:10 PM EDTDauphin County
Corrects previous hail report from 1 SSW Colonial Park. Reports of dime to penny sized hail.
- 0.75″ penny size PUBLIC2 NNE HIGHSPIRE, PA10:20 PM EDTDAUPHIN County
- 0.75″ penny size Trained Spotter3 S Parkville, PA1:20 AM EDTYork County
Penny size hail in West Manheim Twp.
Showing the 12 largest of 16 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 Pennsylvania hail days
Pennsylvania hail on September 21, 2024
NOAA radar put hail of an inch or more over 2 Pennsylvania cities that day. The largest stones — 1.00 inches, quarter size — were over Harrisburg. Every city hit is listed above with its own stone size.