Vermont, 1998

Flash Flood in Vermont, August 11 to 12, 1998

August 11 to 12, 1998 · NWS BTV · 1 event in 1 county or zone

A cold front moved across the region during the late afternoon and night of August 11th into the early morning of August 12th. With a warm humid airmass in place, thunderstorms resulted in torrential downpours during the night.

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

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
$2.0 million
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.

A cold front moved across the region during the late afternoon and night of August 11th into the early morning of August 12th. With a warm humid airmass in place, thunderstorms resulted in torrential downpours during the night. Small streams and brooks quickly rose out of their banks. Initially, road flooding was especially severe in eastern portions of the county, including the towns of Underhill, Jericho and Westford with numerous roads closed or washed out.

The radar

The Burlington radar (KCXX), 9 km away, was scanning. The volume nearest the first event began at 01:28 UTC.

Open the radar archive at this moment

Event by event

1 flash flood. Local standard time, as filed.

Flash Flood, Chittenden

When
August 11, 8:30 PM EST to August 12, 1:00 AM EST
Where
Chittenden County, Countywide
Property damage
$2.0 million
Reported by
TRAINED SPOTTER
Coordinates
44.461, -73.081 (the zone’s center; the record gives no point)

What these are

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 Vermont in 1998Every state in 1998This day in weather historyWarnings in Vermont, August 1998

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: 5667531.