Debris Flow in New York
Every debris flow event the National Weather Service has filed in New York, year by year, with the most significant episodes. A fast-moving slurry of mud, rock and debris, usually on a slope soaked by heavy rain or stripped by a fire.
The most significant on the map
The most significant debris flow episodes in New York.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The record
- Events
- 10
- Deaths
- 0
- Injuries
- 0
- Damage
- $515,000
Every year
The most significant
Ranked by deaths, injuries, damage and size together.
- Flash Flooding and Debris Flow in New York, July 29 to 30, 2021Bands of moderate to heavy rainfall set up across areas north of Interstate 90 during the afternoon and evening hours on Thursday, July 29, 2021 north of a warm front and area of low pressure.
- Flash Flooding and Debris Flows in New York, August 3 to 4, 2023A slow moving low pressure system brought multiple rounds of scattered showers and thunderstorms across eastern New York from August 3 to August 4, 2023.
- Debris Flow in New York, May 16 to 31, 2000Excessive rains caused a rapid erosion of the Normanskill escarpment, next to county Highway Route 443 in Delmar, just south of the city of Albany. On May 16 a landslide developed, and spread over the next couple of days.
- Winter Storm and Debris Flow in New York, February 25 to 27, 2010A powerful storm impacted the region, the second in just a couple of days bringing heavy rainfall and a heavy wet snow to the local area.
- Flash Flooding and Debris Flow in New York, May 15, 2022A multi-cluster batch of showers and thunderstorms produced heavy rainfall that resulted in multiple flash flood reports and also produced a few damaging wind reports across eastern New York during the afternoon and evening hours of May 15, 2022.
- Debris Flows in New York, April 5 to 6, 2023An area of repeated thunderstorms moved across portions of the Mohawk Valley during the evening hours on April 5, 2023 into the overnight hours on April 6 resulting in a couple of debris flows from the heavy rainfall.
- Debris Flow in New York, May 24, 2004During the period of May 22rd through May 24th, a frontal system extended across New York into central New England. A storm system moved east along the front from the Great Lakes region east across New York and New England during Monday, May 24th with periods of steady rain.
- Debris Flow in New York, March 30 to 31, 2014Rainfall and melting snow led to a minor mud and debris slide 3 miles south of Ilion in German Flats, Herkimer County on Sunday, March 30th. The mudslide caused a portion of State Route 51 to be closed between Spinnerville Gulf Road and Cedarville Road.
More
Sources
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24.