Hail in Clarion County, Pennsylvania

Hail March 22, 2026 · Clarion County, Pennsylvania

1.5 in

Hail diameter

Where the report was made, with tornadoes recorded within 15 miles over the years.

The wider storm

Late afternoon and evening thunderstorms developed along and ahead of a slowly southeastward sagging cold front. A surge of temperatures into the upper 70s with dew points in the mid 50s provided an unstable environment with 1000 J/kg of MUCAPE and strong 40-50 knot effective bulk shear. 500-600 J/kg of that CAPE was within the hail growth zone, and mid-level lapse rates were steep > 7 C/km. This supported severe thunderstorms with hail up to golf ball size and sporadic wind damage.

Began near Williamsburg (41.1916, -79.3965).

Source: NOAA Storm Events Database, event 1323261. Narratives are written by the National Weather Service forecast office that issued the report.

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