Ice Storm — Extreme Western Allegany, Maryland

2023-03-03 · Extreme Western Allegany, Maryland

Event narrative

Numerous spotters and Department of Highway Officials reported significant ice accretion of one quarter of an inch or greater. Greatest accretion on eastern facing slopes.

Wider weather episode

An area of low pressure passed by to the west with another area of low pressure developing near the Chesapeake Bay. This resulted in southeasterly winds to overrun colder air near the surface and a prolonged wintry mix/freezing rain event across the Allegheny Mountains where temperatures were just below freezing. Ice accumulations totaled two to four tenths of an inch. Sleet and snow accumulations totaled upwards of 2 as well. Winds also gusted to 50 mph during the event. This led to numerous accidents, downed trees and power lines which resulted in isolated power outages.

Source: NOAA Storm Events Database, event_id 1074244. Narrative written by the NWS forecast office that issued the report.