Name: Hail in Connecticut, July 10, 2001
Start: 2001-07-10T16:48
End: 2001-07-10T16:48
Location: Connecticut

Where it happened

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Tropical storms and surge
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Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
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The toll

Deaths: 0
Injuries: 0
Property damage: None recorded
Crop damage: None recorded
Events: 1

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 OKX wrote it up.

On Tuesday, July 10th, a cold front located across the Great Lakes moved east into central New York State by Tuesday night. Well in advance of the front, scattered strong to locally severe thunderstorms developed. One thunderstorm moved east across extreme northern Fairfield County, and produced dime-size hail in Sherman.

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 New York, NY wrote its last area forecast discussion before the first event at Jul 10, 1:50 PM EST, 2 hours 58 minutes earlier.

Area forecast discussion, Jul 10, 1:50 PM EST, 2 hours 58 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NEW YORK NY
250 PM EDT TUE JUL 10 2001

STATUS OF RADAR OUTAGE...THE OKX RADAR WILL REMAIN OUT OF SERVICE
DUE TO A POWER SUPPLY FAILURE THROUGH WEDNESDAY AFTERNOON. THE PART
IS SCHEDULED TO ARRIVE SOMETIME AFTER MIDNIGHT AND WILL BE INSTALLED
AND TESTED FIRST THING WEDNESDAY MORNING.

POTENTIAL FOR SEVERE TSTMS THROUGH THIS EVE...UPSTREAM AREAL
COVERAGE AND INTENSITY CONTINUES TO INCREASE AS THE AIR MASS
STABILITY STEADILY DECREASES. JUST COORDINATED WITH THE SPC...A
SEVERE THUNDERSTORM WATCH WILL BE ISSUED FOR THE ENTIRE CWA THROUGH
10 PM.

POTENTIAL FOR SEVERE TSTMS WED...WX CONDS WILL BE IDEAL FOR THE
DEVELOPMENT OF AN MCC LATER TNGT INTO THE FIRST PART OF WED.
ADDITIONAL SEVERE WX IS POSSIBLE IF THE MCC DEVELOPS.

MODEL DISC...A SERIES OF QUICK MVG UPPER LVL WVS WILL CONTINUE TO
ROTATE ARND THE MAIN POLAR VORTEX. AS THE POLAR VORTEX SINKS
SOUTH...THE TRACK OF EACH SUCCESSIVE WV WILL BE DISPLACED FURTHER
SOUTH. AS ALWAYS...TIMING THESE INDIVIDUAL WVS IS QUITE DIFFICULT.
AS YOU WOULD EXPECT...THERE ARE DIFFERENCES IN THE INTENSITY AND
TIMING AMONG THE FCST MDLS. HOWEVER...MOST FCST MDLS SHOW THE MOST
SIG WV FCST TO PASS ACROSS THE REGION BETWEEN 12Z AND 18Z WED...
ACCOMPANIED BY LARGE SCALE LIFT. BASED ON THIS OUTPUT...THE FCST
POPS FOR LATER TNGT AND WED APPEAR TOO LOW.

THIS POLAR VORTEX WILL CONT TO SPIN ARND NEW ENGLAND THRU 60
HRS...00Z FRI.

.OKX...SEVERE THUNDERSTORM WATCH FOR THE ENTIRE AREA THRU 10 PM.

GC

The radar

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

Open the radar archive at this moment

Event by event

1 hail. Local standard time, as filed.

Hail, Fairfield

When: July 10, 4:48 PM EST
Where: Fairfield County, Sherman
Measured: 0.75 in hail
Reported by: TRAINED SPOTTER
Coordinates: 41.567, -73.500

What these are

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

More

Every storm in Connecticut in 2001 Every state in 2001 This day in weather history Warnings in Connecticut, 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: 5259373.