Hail — Clay, Alabama

2018-07-21 · near Delta, Clay, Alabama

Event narrative

Tennis ball sized hail reported in far northeast Clay County.

Wider weather episode

A unseasonably cold core upper low was centered over the Ohio Valley States. Northwest flow aloft pushed several fast moving short wave troughs through East Alabama on July 21st and July 22nd. The combination of cold air aloft and moist low levels of the atmosphere produced very unstable conditions across east Alabama with CAPE values 4000-5000 J/kg each afternoon.

View location on OpenStreetMap → (33.4900, -85.6500)

Source: NOAA Storm Events Database, event_id 776721. Narrative written by the NWS forecast office that issued the report.