Ice Storm — Garrard, Kentucky

2021-02-10 to 2021-02-11 · Garrard, Kentucky

Event narrative

There was a report on Twitter along with a photo of a quarter inch of ice accumulation near Lancaster, KY.

Wider weather episode

An arctic airmass was centered over the northern Plains, and Kentucky and southern Indiana were positioned directly along a volatile boundary between the arctic air mass and a warm and moist tropical airmass associated with the Gulf of Mexico. The vertical temperature profile was ideal for the formation of freezing rain. The arctic air wedged itself beneath a warm and moist layer aloft. As energy associated with the jet stream passed over the Ohio Valley, a mix of wintry precipitation occurred. A large swath of freezing rain occurred, stretching mainly west to east across Kentucky.

Source: NOAA Storm Events Database, event_id 942564. Narrative written by the NWS forecast office that issued the report.