Winter Weather — Butler, Pennsylvania

2026-01-11 · Butler, Pennsylvania

Event narrative

PennDOT sensor I-79 at Mile Marker 86 measured less than quarter mile visibility in a snow squall.

Wider weather episode

Convective snow showers developed along an early morning cold front sweeping west to east across the region. The strongest convergence along the front and mid-level forcing was north of Pittsburgh where impactful snow squalls resulted in visibility reduction to a quarter mile or less and a quick accumulation of snow on roadways.

Source: NOAA Storm Events Database, event_id 1300799. Narrative written by the NWS forecast office that issued the report.