Event narrative (NOAA)
Tropical Storm Irene deposited 3 to 6 inches of rainfall to Clinton county during the late morning and afternoon hours. The greatest rainfall amounts and impact were across central Clinton county along the eastern slopes of the Adirondacks. Significant flash flooding occurred within the Saranac, AuSable and Great Chazy valleys with numerous roads (local and State including Route 3, 11, 190, 374), as well as a few bridges, homes and businesses washed out. Some of the greater impacted communites included AuSable Forks, Altona, Cadyville and Morrisonville. Lots of agriculture flooding at harvest time. Two fatalities in Altona along the Great Chazy river on Devil' Den road as a vehicle drove off a closed and washed out bridge.
Other notable flash flood events in New York
Source: NOAA/NCEI Storm Events Database. Deaths and injuries are those NOAA classifies as direct. Damage is the reporting office's estimate at the time and is not inflation-adjusted. This is a catalogue record, not a forecast.