Winter Weather — Eastern Chester, Pennsylvania

2022-01-05 · Eastern Chester, Pennsylvania

Event narrative

Light freezing rain fell. Radar data and observations from surrounding counties confirm a brief period of freezing rain occurred.

Wider weather episode

A developing wave of low pressure brought light precipitation to the mid-Atlantic on the morning of January 5, 2022. Warm air advection caused rising temperatures aloft over the region. However, surface temperatures were initially sub-freezing, and in some cases took several hours after precipitation began to move above freezing. This caused freezing rain to fall. A widespread light icing event transpired across the eastern mid-Atlantic as a result of this. While ice accumulations were no more than several hundredths of an inch, this event caused significant travel impacts during the busy morning commute hours of January 5.

Source: NOAA Storm Events Database, event_id 991717. Narrative written by the NWS forecast office that issued the report.