Vermont, 1999

Hail and Damaging Winds in Vermont, July 6, 1999

July 6, 1999 · NWS ALY · 4 events in 2 counties and zones

A cold front moved from the Great Lakes eastward across New York State and then into southern Vermont on July 6. With sultry air in place, and favourable strong upper level winds, this front triggered a powerful squall line around midday which bore down on southern Vermont during the afternoon.

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
$158,000
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 cold front moved from the Great Lakes eastward across New York State and then into southern Vermont on July 6. With sultry air in place, and favourable strong upper level winds, this front triggered a powerful squall line around midday which bore down on southern Vermont during the afternoon. Destructive thunderstorm winds brought down trees and power lines in Pownal and Stamford, Bennington county. Dime size hail was noted in Halifax, Windham county. By far the most widespread damage occurred at Guilford Center in Windham county. A microburst with estimated winds up to 90 mph, brought hundreds of trees down or sheared them in half. The most significant tree damage appeared along the upper sections of Jacksonville Stage, Miller and along northern sections of Sweet Pond roads. The microburst travelled 3 miles and damage fanned out to nearly 2.5 miles wide.

The radar

The Albany radar (KENX), 93 km away, was scanning. The volume nearest the first event began at 19:34 UTC.

Open the radar archive at this moment

Event by event

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

Thunderstorm Wind, Bennington

When
July 6, 2:35 PM EST
Where
Bennington County, Arlington to Pownal
Property damage
$5,000
Reported by
LAW ENFORCEMENT
Coordinates
43.080, -73.150

Thunderstorm Wind, Bennington

When
July 6, 2:45 PM EST
Where
Bennington County, Stamford
Property damage
$3,000
Reported by
TRAINED SPOTTER
Coordinates
42.750, -73.070

Hail, Windham

When
July 6, 3:05 PM EST
Where
Windham County, Halifax
Measured
0.75 in hail
Reported by
TRAINED SPOTTER
Coordinates
42.770, -72.750

Thunderstorm Wind, Windham

When
July 6, 3:10 PM EST
Where
Windham County, Guilford Center
Property damage
$150,000
Reported by
NWS STORM SURVEY
Coordinates
42.800, -72.620

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

More

Every storm in Vermont in 1999Every state in 1999This day in weather historyWarnings in Vermont, July 1999

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: 5707003, 5707095, 5707096, 5707097.