Winter Storm — Eastern Chester, Pennsylvania

2021-02-07 · Eastern Chester, Pennsylvania

Event narrative

Snow fell across the area and was heavy at times as strong banding and high snow rates developed over southeast Pennsylvania. A report of 9.0 inches of snow was received from Malvern, with several surrounding reports of 6 to 8 inches.

Wider weather episode

A fast moving wave of low pressure tracked northeastward off the Atlantic coast on February 7. The low steadily intensified as it gained latitude, and a sizeable shield of banded precipitation developed in its northwest quadrant. This resulted in a fairly short duration period of precipitation over the eastern mid-Atlantic, but with precipitation rates that were moderate to heavy at times. The storm produced a wide swath of several inches of snow, with considerable local variations in the snow totals. The variations were due to both distinct banding features as well as marginally cold temperatures especially near the coast, which caused precipitation to start as rain in some areas. The storm departed the region by the late afternoon of February 7 after producing a general 4 to 8 inches of snow, with some localized totals that were a little higher.

Source: NOAA Storm Events Database, event_id 932414. Narrative written by the NWS forecast office that issued the report.