Pennsylvania · April 30, 2024

Pennsylvania hail map — April 30, 2024

NOAA radar detected hail of an inch or more over 3 Pennsylvania cities on April 30, 2024. The largest stones — 1.00″, quarter size — fell over Allentown.

Hail swath map for Allentown, PA on April 30, 2024 showing 1.00 inch hail.
Swath over Allentown on April 30, 2024 — 1.00″ hail. Each city below has its own map for this storm.
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Cities hit
3
in Pennsylvania
Largest stone
1.00″
quarter size
Impact rating
3/10
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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What people on the ground measured in Pennsylvania on April 30, 2024

12 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.

  • 1.25″ half dollar size Trained Spotter
    Whitehall Twp, PA7:52 PM EDTLehigh County

    Trained spotter reports max hail size of 1.25 inches fell from 7:52-7:56pm.

  • 1.25″ half dollar size Trained Spotter
    North Catasauqua, PA7:55 PM EDTNorthampton County

    Updates previous hail report from North Catasauqua. 16 minutes of dime to quarter sized hail in North Catasauqua. Hail briefly grew to half dollar size. Time estimated from radar.

  • 1.00″ quarter size Public
    Montrose, PA2:25 PM EDTSusquehanna County
  • 1.00″ quarter size Trained Spotter
    Harford, PA2:52 PM EDTSusquehanna County
  • 1.00″ quarter size Public
    Blakely, PA4:52 PM EDTLackawanna County

    Report from mPING: Quarter (1.00 in.).

  • 1.00″ quarter size Public
    Slatington, PA7:35 PM EDTLehigh County

    Updates previous hail report in Slatington.

  • 1.00″ quarter size Cocorahs
    North Whitehall Twp, PA7:45 PM EDTLehigh County

    Report from CoCoRaHS station Schnecksville 1.7 ENE.

  • 1.00″ quarter size Public
    1 W Hokendauqua, PA7:50 PM EDTLehigh County

    Report from mPING: Quarter (1.00 in.).

  • 1.00″ quarter size Public
    Whitehall Twp, PA7:53 PM EDTLehigh County
  • 0.75″ penny size Public
    2 SE Allentown, PA8:07 PM EDTLehigh County

    Report from mPING: Dime (0.75 in.).

  • 0.70″ penny size Public
    Emerald, PA7:35 PM EDTLehigh County
  • 0.50″ penny size Public
    Royal, PA3:00 PM EDTSusquehanna County

Showing the 12 largest of 25 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.

FAQ

Pennsylvania hail on April 30, 2024

NOAA radar put hail of an inch or more over 3 Pennsylvania cities that day. The largest stones — 1.00 inches, quarter size — were over Allentown. Every city hit is listed above with its own stone size.

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