New York, 2000

Flash Flood and Hail in New York, May 10, 2000

May 10, 2000 · NWS BUF · 6 events in 6 counties and zones

Thunderstorms rolled in off the Great Lakes producing large hail and damaging winds. In some locations the steady fall of hail was enough to whiten the ground.

Where it happened

Every event with a place to put it; 1 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

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The toll

Deaths
0
Injuries
0
Property damage
$63,000
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 happened

The episode as NWS BUF wrote it up.

Thunderstorms rolled in off the Great Lakes producing large hail and damaging winds. In some locations the steady fall of hail was enough to whiten the ground. The shower of hail stripped leaves from trees. In addition, the thunderstorms produced localized heavy rains which resulted in poor drainage flooding. Two to four inches of rain fell on Lowville forcing the closure of some roads.

The radar

The Binghamton radar (KBGM), 110 km away, was scanning. The volume nearest the first event began at 12:49 UTC.

Open the radar archive at this moment

Event by event

4 hail, 1 thunderstorm wind, 1 flash flood. Local standard time, as filed.

Hail, Ontario

When
May 10, 7:50 AM EST
Where
Ontario County, Geneva
Measured
1 in hail
Property damage
$10,000
Reported by
AMATEUR RADIO
Coordinates
42.867, -76.983

Hail, Oswego

When
May 10, 8:23 AM EST
Where
Oswego County, Volney
Measured
0.88 in hail
Property damage
$15,000
Reported by
EMERGENCY MANAGER
Coordinates
43.350, -76.367

Hail, Wayne

When
May 10, 9:45 AM EST
Where
Wayne County, Sodus
Measured
1 in hail
Property damage
$8,000
Reported by
TRAINED SPOTTER
Coordinates
43.233, -77.067

Hail, Allegany

When
May 10, 11:00 AM EST
Where
Allegany County, Wellsville
Measured
0.75 in hail
Property damage
$5,000
Reported by
TRAINED SPOTTER
Coordinates
42.117, -77.950

Thunderstorm Wind, Jefferson

When
May 10, 11:00 AM EST
Where
Jefferson County, Deferiet
Property damage
$10,000
Reported by
LAW ENFORCEMENT
Coordinates
44.067, -75.767

Flash Flood, Lewis

When
May 10, 1:30 PM EST to 3:00 PM EST
Where
Lewis County, Lowville
Property damage
$15,000
Reported by
LAW ENFORCEMENT
Coordinates
43.785, -75.449 (the zone’s center; the record gives no point)

What these are

Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
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

More

Every storm in New York in 2000Every state in 2000This day in weather historyWarnings in New York, May 2000

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: 5147685, 5147686, 5147687, 5147688, 5147689, 5147690.