Flash Flooding in New York, June 22 to 23, 2001

Name: Flash Flooding in New York, June 22 to 23, 2001
Start: 2001-06-22T19:45
End: 2001-06-23T16:15
Location: New York

June 22 to 23, 2001 · NWS BGM · 6 events in 6 counties and zones

6 flash flood, as filed by the National Weather Service.

Where it happened

Every event with a place to put it; 6 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: None recorded
Crop damage: None recorded
Events: 6

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Binghamton, NY wrote its last area forecast discussion before the first event at Jun 22, 1:15 PM EST, 6 hours 30 minutes earlier.

Area forecast discussion, Jun 22, 1:15 PM EST, 6 hours 30 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BINGHAMTON NY
215 PM EDT FRI JUN 22 2001

SOME PORTIONS OF THE FINGER LAKES HAVE BROKEN OUT INTO THE SUN TODAY AND BECOME
UNSTABLE. LINE OF CONVECTION ENTERING THE WESTERN CWA ATTM WILL BE MOVING INTO
THIS UNSTABLE AMS. AREAS TO THE SOUTH ARE POPPING ATTM AS WELL SO IT LOOKS LIKE
THE THREAT OF SVR WITH FFW POTENTIAL WILL CONTINUE.

SFC LOW NORTH OF LAKE ONTARIO IS PROGGED TO CONTINUE MOVING NORTH AND CONTINUE
SWINGING A COLD FRONT...CURRENTLY MOVING INTO THE WRN CWA...SLOWLY INTO THE
REGION TONIGHT. MODELS DEVELOP A WAVE ALONG THE SOUTHERN PORTION OF THE FRONT
AND SLIDE IT THROUGH THE SERN ZONE TONIGHT. LAPS DATA SHOWS THIS LOW FORMING
ATTM SO HAVE SOME CONFIDENCE IN THIS SOLUTION.

BELIEVE PCPN WILL CONTINUE TO FILL IN TONIGHT WITH TRAINING PCPN A BIG CONCERN.
AREA FROM THE POCONOS TO THE CATSKILLS LOOK TO SEE THE MOST PCPN AS THE WAVE
SLIDES ALONG THE FRONT TONIGHT. ALTHOUGH THE FRONT IS MOVING INTO THE WRN
CWA...WITH UPPER TROF CLOSING OFF AND RETROGRADING TOWARD TN AND WAVE
DEVELOPING ALONG THE FRONT...BELIEVE THINGS WILL SLOW DOWN ENOUGH TO KEEP PCPN
ACROSS ALL ZONES TONIGHT. FFA WILL BE EXTENDED FOR THE ENTIRE CWA WITH THIS
PACKAGE.

PCPN WILL GRADUALLY TAPER OFF FROM WEST TO EAST TOMORROW BUT ERN ZONES WILL BE
WET INTO TOMORROW EVENING. WILL GO DRY FOR MOST OF SATURDAY NIGHT AND LEAN
TOWARD AN OPTIMISTIC PS FOR SUNDAY.

MO9S TEMPS SEEM OK SO WILL STAY CLOSE.

.BGM...FLASH FLOOD WATCH FOR AREAS ALONG AND WEST OF I-81.

SPORER

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

6 flash flood. Local standard time, as filed.

Flash Flood, Cortland

When: June 22, 7:45 PM EST to June 23, 3:00 PM EST
Where: Cortland County, Countywide
Reported by: EMERGENCY MANAGER
Coordinates: 42.595, -76.070 (the zone’s center; the record gives no point)

Several periods of heavy rain caused by slow moving thunderstorms on the evening of the 22nd and again during the day on the 23rd caused extensive flooding throughout the county. Rainfall totals over 5 inches occurred over portions of the area during this period. Many roads were washed out and damaged and closed to traffic for significant periods of time. The hardest hit area was the town of McGraw due to flash flooding of the Mosquito Creek that was caused by debris clogging the creek under a bridge. Many homes and businesses along Main Street in McGraw were damaged and several Red Cross shelters were opened.

Flash Flood, Tioga

When: June 23, 9:30 AM EST to 11:30 AM EST
Where: Tioga County, Countywide
Reported by: LAW ENFORCEMENT
Coordinates: 42.170, -76.306 (the zone’s center; the record gives no point)

Law enforcement officials reported some flooding along area creeks from heavy thunderstorm rains. The flooding was most pronounced along West Creek near Penn Avenue.

Flash Flood, Broome

When: June 23, 11:00 AM EST to 1:20 PM EST
Where: Broome County, Triangle
Reported by: EMERGENCY MANAGER
Coordinates: 42.160, -75.820 (the zone’s center; the record gives no point)

Emergency management officials reported flash flooding from heavy thunderstorm rains along Water Street in Castle Creek. A bridge was partially washed out in the town of Triangle.

Flash Flood, Chenango

When: June 23, 11:00 AM EST to 1:40 PM EST
Where: Chenango County, Central Portion
Reported by: EMERGENCY MANAGER
Coordinates: 42.494, -75.612 (the zone’s center; the record gives no point)

Emergency management officials reported numerous roads closed in Preston and McDonough due to flash flooding from heavy thunderstorm rains.

Flash Flood, Madison

When: June 23, 11:19 AM EST to 2:00 PM EST
Where: Madison County, Countywide
Reported by: EMERGENCY MANAGER
Coordinates: 42.913, -75.670 (the zone’s center; the record gives no point)

Emergency management officials reported numerous roads closed and basements flooded due to flash flooding from heavy thunderstorm rains.

Flash Flood, Oneida

When: June 23, 12:00 PM EST to 4:15 PM EST
Where: Oneida County, Kirkland
Reported by: LAW ENFORCEMENT
Coordinates: 43.242, -75.436 (the zone’s center; the record gives no point)

Flash flooding from heavy thunderstorm rains caused numerous road closures in the towns of Kirkland and Westmoreland. Mud and Oriskany Creeks overflowed their banks and flooded some nearby homes and roads. The heavy rain also caused the roof of a warehouse on Lafayette Street to collapse.

What these are

Flash Flood: Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in New York in 2001 Every state in 2001 This day in weather history Warnings in New York, June 2001

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. Each event’s entry at NCEI: 5253031, 5253033, 5253034, 5253035, 5253036, 5253032.