A strong area of high pressure was located just off the eastern seaboard. Southerly flow around this high pressure area brought warm and moist air into the region during the day of Sunday, June 23rd.  At the same time, a weak surface frontal boundary was located just north of the area along the U.S. and Canadian International Border.  As an upper level wave moved by to the north, showers and thunderstorms developed across the western Mohawk Valley during the afternoon hours.  With the moist air in place, the showers and thunderstorms produced very heavy rainfall in a short period of time.  With the ground already saturated due to wet conditions over the past several weeks, this led to flash flooding across southern portions of Herkimer County, as small stream and creeks left their banks.  Several roads were washed away and many roads, including some state roads, were closed due to the flooding.  Some homes were impacted by flood waters as well.  Newspaper media stated the cost of the damage could exceed 1$ million.

Flash Flood in HERKIMER, NEW YORK
From 23-JUN-13 15:15:00 to 23-JUN-13 18:23:00 (EST-5)
Location: EATONVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

North Creek Road, as well as several other roads, in the towns of Herkimer and Fairfield were washed out due to flash flooding from heavy rainfall.

Flash Flood in HERKIMER, NEW YORK
From 23-JUN-13 14:35:00 to 23-JUN-13 18:23:00 (EST-5)
Location: EATONVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Route 28 was reportedly closed near Kast Bridge due to flash flooding. In addition, homes along Oberle Road in the town of Herkimer were impacted from flood waters. The flood waters caused huge rock boulders to be moved down hills and into yards.

Flash Flood in HERKIMER, NEW YORK
From 23-JUN-13 15:45:00 to 23-JUN-13 18:23:00 (EST-5)
Location: EATONVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several areas along State Route 169 in the town of Fairfield between Middleville and Little Falls were reportedly washed away and closed due to flash flooding from heavy rainfall. The section hardest hit was between West End Road and Kelly Road. A culvert was washed out and five feet of water was flowing across the roadway.

Flash Flood in HERKIMER, NEW YORK
From 23-JUN-13 16:00:00 to 23-JUN-13 18:23:00 (EST-5)
Location: HARBOR
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A portion of Southside Road in Frankfort was closed due to flash flooding from heavy rainfall.

Flash Flood in HERKIMER, NEW YORK
From 23-JUN-13 16:00:00 to 23-JUN-13 18:23:00 (EST-5)
Location: EAST SCHUYLER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

New York State Route 5 was washed out and closed in the town of Frankfort between Millers Grove Road and Watkins Grove.

Flash Flood in HERKIMER, NEW YORK
From 23-JUN-13 15:00:00 to 23-JUN-13 18:23:00 (EST-5)
Location: EATONVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

A portion of Caldwell Road in the town of Herkimer was closed due to a road washout from flash flooding from heavy rainfall.