Flood in Knox County, Maine
Flood October 31, 2021 · Knox County, Maine
Where the report was made, with tornadoes recorded within 15 miles over the years.
What the National Weather Service wrote
Heavy rain with reports up to 6.5 inches fell in a short period of time lead to excessive run-off with numerous roads closed and damaged due to flooding in Knox County. The towns that were hardest hit included Appleton, Camden, Hope, Rockland, Rockport and Thomaston.
The wider storm
A rapidly developing area of low pressure tracked across the Southern New England coast and directly over Western Maine on the evening of October 30th and into the early morning hours of October 31st. Light rain fell during the day before moderate rain began overspreading the area by the evening. Periods of heavy rainfall occurred overnight, mainly within a 6 hour window. Widespread reports of 2 to 4' of rain were recorded in all areas except the Western Mountains. Coastal York, Knox and Southern Waldo Counties received 4 to 6' of rain with a few localized reports of 6.5+' falling. The heavy rain and excessive runoff led to widespread nuisance flooding, with damage reported in the areas that were hit with the heaviest rainfall amounts. River response on the preceding day led to minor river flooding, but the bulk of the flooding was due to flash flooding during the overnight hours. Rivers were elevated during and immediately after the rain ended, but most remained within their banks. Only minor lowland flooding occurred from riverine flooding. Flooding of smaller and faster responding streams and creeks in the hardest hit areas did damage some area roads and bridges.
Began near (rkd)rockland Arpt (44.0700, -69.1000).
Source: NOAA Storm Events Database, event 989834. Narratives are written by the National Weather Service forecast office that issued the report.
Tornadoes near your address
See every tornado that passed near a place you know, measured to its path.
We couldn’t get your location. Check that location access is allowed for this site, or type an address.