Hail and Damaging Winds in New York, July 10, 2001

Name: Hail and Damaging Winds in New York, July 10, 2001
Start: 2001-07-10T13:43
End: 2001-07-10T15:15
Location: New York

July 10, 2001 · NWS ALY · 4 events in 3 counties and zones

A strong cold front triggered scattered showers and thunderstorms across eastern New York during the afternoon of July 10. Some of the storms became strong to locally severe.

Where it happened

Every event with a place to put it. 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: $66,000
Crop damage: None recorded
Events: 4

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 ALY wrote it up.

A strong cold front triggered scattered showers and thunderstorms across eastern New York during the afternoon of July 10. Some of the storms became strong to locally severe. Thunderstorm winds knocked down trees and wires in the town of Hampton, Washington County. Trees were knocked down at Greenfield Park, Ulster county. In Rensselaer County, trees and wires were blown down in the town of East Greenbush and nickle-size hail was reported there as well.

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 Albany, NY wrote its last area forecast discussion before the first event at Jul 10, 10:00 AM EST, 3 hours 43 minutes earlier.

Area forecast discussion, Jul 10, 10:00 AM EST, 3 hours 43 minutes before

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE ALBANY NY
1100 AM EDT TUE JUL 10 2001

UPDATED ZONES AVAILABLE SHORTLY.

.DISC...ALL FAIRLY QUIET ALONG THE WESTERN FRONT FOR NOW. COLD
FRONT...JUST ABOUT TO MAKE THE CROSSING FROM CAN INTO WRN NY...IS
MOVING ABOUT 30 MPH...A TAD FASTER THAN PREVIOUSLY FORECASTED.
PREFRONTAL TROUGH...IS OUT WELL AHEAD THE MAIN...ALREADY TO OUR
EAST. NOT EVEN MUCH IN THE CU FORMING YET...BUT ONCE THE CAP IS
BROKEN...STORMS SHOULD BLOSSOM SOMEWHAT...POSSIBLY EVEN FORMING A
LINE OR TWO. RECALCULATED MAGLENTA EQUATION STILL INDICATES A MINOR
SVR EVENT (WITH A VALUE AROUND 3.2). HOWEVER CAPES OFF THE MODEL
SOUNDINGS FORECAST TO RISE TO AS HIGH AS 1500 J/KG. SPEED
DIFFERENTIAL SHEAR EVIDENT AND ALY RAOB ALREADY SHOWS 50 KT FLAG TO
ABT THE H5 LVL...WHILE KBUF RAOB HAS 50 KT TO NEARLY H6. THEIR RAOB
INDICATES VERY STRONG WINDS ALOFT...CLOSE TO 80 KTS AT H2.5.
ACCORDING TO THE 12Z MESO-ETA JET MAX AT THE SAME LEVEL OVER MI IS
FORECAST TO MOVE SOUTH.

WE PLAN TO STAY THE COURSE REGARDING THE OVERALL FORECAST THIS
AFTERNOON AND WILL UPDATE THE SEVERE WEATHER OUTLOOK.

WILL ISSUE AN UPDATE FOR THE FOLLOWING REASONS...

1) TO REMOVE ANY MENTION OF EARLY FOG.

2) TO TWEAK TEMPS UPWARD IN A FEW SPOTS.

3) TO REGROUP ZONES (DID NOT LIKE THE ORIGINAL CONFIGURATION).

4) TO REDEFINE THUNDERSTORM DESRCIPTION...BUT KEEP POPS PRETTY MUCH
THE SAME AS BEFORE.

.ALY...NY ERN/VT EXTRM SRN/MA EXTRM WRN/CT NW...NONE.

In the hours before

Special weather statement, Jul 10, 8:10 AM EST, 5 hours 33 minutes before

CTZ001-MAZ001-NYZ032-033-038>043-047>054-058>061-063>066-VTZ013-014-
112000-

SEVERE WEATHER OUTLOOK.
NATIONAL WEATHER SERVICE ALBANY NY
910 AM EDT TUE JUL 10 2001

...THUNDERSTORMS WITH HAIL ARE POSSIBLE THIS AFTERNOON IN EASTERN
NEW YORK AND NEARBY NEW ENGLAND...

A DISTURBANCE PRODUCED SHOWERS AND ISOLATED THUNDERSTORMS ACROSS
EASTERN NEW YORK AND ADJACENT NEW ENGLAND THIS MORNING. ANOTHER
DISTURBANCE...MAY PRODUCE MORE THUNDERSTORMS THIS AFTERNOON. THE AIR
ALOFT WILL BECOME ESPECIALLY COOL...WHICH WILL INCREASE THE THREAT
OF HAIL WITH THESE STORMS.

WHILE MOST HAIL WITH ANY STORMS THIS AFTERNOON WILL BE
SMALL...RANGING FROM PEA-SIZE OR LESS...THERE IS THE OUTSIDE
POSSIBILITY THAT SOME OF THE HAIL MAY BE A LITTLE LARGER. IN
ADDITION...THE THUNDERSTORMS MAY CONTAIN CLOUD TO GROUND LIGHTNING.

IF THREATENING WEATHER APPROACHES YOUR AREA THIS AFTERNOON...SEEK
SHELTER AS QUICKLY AS POSSIBLE.

HWJIV

Special weather statement, Jul 10, 10:40 AM EST, 3 hours 3 minutes before

CTZ001-MAZ001-NYZ032-033-038>043-047>054-058>061-063>066-VTZ013-014-
102000-

SEVERE WEATHER OUTLOOK...CORRECTED
NATIONAL WEATHER SERVICE ALBANY NY
1140 AM EDT TUE JUL 10 2001

...SEVERE THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON IN EASTERN NEW
YORK AND NEARBY NEW ENGLAND...

A COLD FRONT WORKING ACROSS WESTERN NEW YORK WILL LIKELY SPAWN
THUNDERSTORMS THIS AFTERNOON ACROSS EASTERN NEW YORK AND WESTERN NEW
ENGLAND. A FEW OF THE STORMS MAY BECOME STRONG TO LOCALLY SEVERE.

THE MAIN THREAT FROM THE THUNDERSTORMS WILL BE HAIL AS WELL AS
STRONG GUSTY WINDS. THERE IS ALSO THE THREAT OF DANGEROUS CLOUD TO
GROUND LIGHTNING.

ANY STORMS THAT DO DEVELOP...WILL MOVE FROM NORTHWEST TO SOUTHEAST
AROUND 30 MPH.

A THUNDERSTORM IS DEFINED AS SEVERE WHEN IT CONTAINS WIND GUSTS THAT
REACH OR EXCEED 58 MILES AN HOUR...OR IF IT HAS HAIL THREE QUARTERS
OF AN INCH...OR MORE...IN DIAMETER.

IF YOU SEE THREATENIvNG WEATHER...SEEK SHELTER AT ONCE.

STAY TUNED TO NOAA WEATHER RADIO...THE VOICE OF THE NATIONAL WEATHER
SERVICE...FOR FURTHER UPDATES....INCLUDING POSSIBLE WATCHES OR
WARNINGS.

HWJIV

The radar

The Burlington radar (KCXX), 109 km away, was scanning. The volume nearest the first event began at 18:41 UTC.

Open the radar archive at this moment

Event by event

3 thunderstorm wind, 1 hail. Local standard time, as filed.

Thunderstorm Wind, Washington

When: July 10, 1:43 PM EST
Where: Washington County, Hampton
Property damage: $22,000
Reported by: TRAINED SPOTTER
Coordinates: 43.533, -73.250

Thunderstorm Wind, Rensselaer

When: July 10, 1:57 PM EST
Where: Rensselaer County, East Greenbush
Property damage: $27,000
Reported by: TRAINED SPOTTER
Coordinates: 42.583, -73.700

Hail, Rensselaer

When: July 10, 1:57 PM EST
Where: Rensselaer County, East Greenbush
Measured: 0.88 in hail
Reported by: TRAINED SPOTTER
Coordinates: 42.583, -73.700

Thunderstorm Wind, Ulster

When: July 10, 3:15 PM EST
Where: Ulster County, Greenfield Park
Property damage: $17,000
Reported by: TRAINED SPOTTER
Coordinates: 41.717, -74.483

What these are

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.
Hail: Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.

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, July 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: 5257761, 5257762, 5257763, 5257764.