Pennsylvania hail map — August 18, 2024
NOAA radar detected hail of an inch or more over 2 Pennsylvania cities on August 18, 2024. The largest stones — 1.00″, quarter size — fell over Lancaster.
- 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 August 18, 2024
What people on the ground measured in Pennsylvania on August 18, 2024
9 reports filed with the National Weather Service — 3 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 Trained SpotterSkippack, PA4:06 PM EDTMontgomery County
- 0.88″ penny size Amateur RadioMillersburg, PA2:16 PM EDTDauphin County
- 0.88″ penny size PublicLower Providence Townsh, PA3:54 PM EDTMontgomery County
- 0.88″ penny size PublicCollegeville, PA3:59 PM EDTMontgomery County
- 0.88″ penny size Trained Spotter1 NW Eagleville, PA4:03 PM EDTMontgomery County
- 0.75″ penny size Trained Spotter1 WNW Chesterbrook, PA3:50 PM EDTChester County
- 0.75″ penny size PublicOaks, PA3:50 PM EDTMontgomery County
Report from mPING: Dime (0.75 in.).
- 0.75″ penny size Public1 SE Oaks, PA3:52 PM EDTMontgomery County
Report from mPING: Dime (0.75 in.).
- 0.50″ penny size Public1 N Skippack, PA4:07 PM EDTMontgomery County
Report from mPING: Half-inch (0.50 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.
Other Pennsylvania hail days
Pennsylvania hail on August 18, 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 Lancaster. Every city hit is listed above with its own stone size.