Hail in Vermont, July 11, 2001

Name: Hail in Vermont, July 11, 2001
Start: 2001-07-11T11:37
End: 2001-07-11T11:37
Location: Vermont

July 11, 2001 · NWS BTV · 1 event in 1 county or zone

Instability resulted from a cold front rotating around an upper level low near James Bay. The cold front moved across Vermont during the late morning and afternoon hours.

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

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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 BTV wrote it up.

Instability resulted from a cold front rotating around an upper level low near James Bay. The cold front moved across Vermont during the late morning and afternoon hours. Thunderstorms preceded and accompanied the front. Dime size hail was reported in Bristol. Smaller hail also fell in Starksboro and Ferrisburgh.

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 Burlington, VT wrote its last area forecast discussion before the first event at Jul 11, 9:41 AM EST, 1 hour 56 minutes earlier.

Area forecast discussion, Jul 11, 9:41 AM EST, 1 hour 56 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BURLINGTON VT
1041 AM EDT WED JUL 11 2001

WILL UPDATE THE ZONE FORECASTS TO REMOVE MENTION OF MORNING FOG IN
SOME OF THE ZONES...AND TO MAKE SOME ADJUSTMENTS TO CLOUD COVER
AND WINDS.  12Z SOUNDINGS FROM MANIWAKI (CWMW) SHOWING WET BULB
ZERO AROUND 7900 FT WITH AROUND -3 LIFTED INDEX...WHILE ALBANY
SOUNDING HAS A WET BULB ZERO OF 8800 FT WITH A -3 LIFTED INDEX.
WET BULB ZERO LOWER THAN YESTERDAY...BUT STRONGER WINDS ALOFT ARE
FURTHER SOUTH THIS MORNING.  GENERALLY...NOT EXPECTING ANY LARGE
HAIL LIKE THE FCST AREA HAD YESTERDAY OR STRONG TSTMS SINCE JET IS
FURTHER SOUTH AND SFC TEMPS WILL NOT BE AS WARM AS YESTERDAY...BUT
CANNOT TOTALLY RULE OUT AN ISOLATED SVR TSTM IN OUR FCST AREA.
SAT LOOP SHOWING SHOWERS AND SOME TSTMS ROTATING AROUND A VORT MAX
OVR WESTERN QUEBEC ATTM...WITH THE WATER VAPOR LOOP SHOWING ANOTHER
VORT MAX DROPPING SEWD FROM THE GRTLKS.  WILL CONTINUE TO MENTION A
CHANCE OF HAIL AND GUSTY WINDS IN THE FORECAST...BUT MAIN THREAT
WILL BE PRIMARILY FROM HAIL.

WILL WORD THE FCST FOR THE REST OF TODAY AS VARIABLE CLOUDINESS...
SINCE ANY SUNNY BREAKS THAT DO DEVELOP SHOULD CLOUD OVER AS COLD
POOL OF AIR ALOFT OVER THE REGION.  OTRW...NO CHGS TO THE REMAINDER
OF THE FCST.

.BTV...NONE.

WGH

The radar

The Burlington radar (KCXX), 43 km away, was scanning. The volume nearest the first event began at 16:36 UTC.

Open the radar archive at this moment

Event by event

1 hail. Local standard time, as filed.

Hail, Addison

When: July 11, 11:37 AM EST
Where: Addison County, Bristol
Measured: 0.75 in hail
Reported by: TRAINED SPOTTER
Coordinates: 44.133, -73.083

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

Every storm in Vermont in 2001 Every state in 2001 This day in weather history Warnings in Vermont, 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: 5261946.