Flash Flood — Chittenden, Vermont
2025-05-17 · near Shelburne, Chittenden, Vermont
Event narrative
Stream out of banks and flooding Bostwick Road with debris on road.
Wider weather episode
A weak area of low pressure and associated front moved across northern NY and Vermont during the afternoon and evening hours of May 17th. This system moved across a relatively unstable airmass across the region that resulted in numerous showers and thunderstorms.
Some of the thunderstorms were severe with damaging winds and large hail upward of golf ball size (1.75 inches diameter). In addition there was heavy rain and some training of thunderstorms that quickly produced 2 to 3 inches of rain. some of these areas had actually witnessed 1/2 to 1+ inches of rain the preceding day, making it more vulnerable to flooding.
View location on OpenStreetMap → (44.3609, -73.2577)
Source: NOAA Storm Events Database, event_id 1246423. Narrative written by the NWS forecast office that issued the report.