Strong Wind — Hamilton, Illinois

2025-03-19 · Hamilton, Illinois

Wider weather episode

A powerful 100-150kt upper-level jet early on the 19th led to deepening lee-side low pressure at the surface, and winds just off the surface increased to 50-60kts over the lower Ohio Valley. Strong south southwest winds at the surface developed quickly in the morning and continued well into the evening across all of southern Illinois. Gusts of 40-50 mph were common through the period, but the gusts climbed to severe storm levels with 66 mph observed at the Southern Illinois Airport (KMDH).

Source: NOAA Storm Events Database, event_id 1248547. Narrative written by the NWS forecast office that issued the report.