Connecticut, 1998Tornadoes and Flash Flood in Connecticut, June 30, 1998
June 30, 1998 · NWS OKX · 17 events in 4 counties and zones
During the morning, thunderstorms produced frequent lightning and heavy rain. Lightning struck:o a house at 109 Celetano Drive in the Ridge Subdivision of Naugatuck.
Every event with a place to put it; 4 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
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 17
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.
Two rounds of thunderstorms affected the area.During the morning, thunderstorms produced frequent lightning and heavy rain. Lightning struck:o a house at 109 Celetano Drive in the Ridge Subdivision of Naugatuck. Lightning struck the side of the house and damaged a bedroom wall.o a house on Saybrook Road in Middletown.Heavy rain caused the Quinnipiac River at Wallingford to rise above its' flood stage from June 30th at 2:20 pm EST until July 1st at 12:35 pm EST. The crest stage of 7.60 feet occurred at midnight and was 0.60 feet above flood stage. During the afternoon and evening, severe thunderstorms produced high winds including 3 weak tornadoes, large hail, and frequent lightning as they moved northeast across the area.In New Haven County, high winds downed many trees in New Haven, Guilford, and Branford. Some trees fell into a house in New Haven. Lightning struck and damaged the bell tower of the Mary Taylor United Methodist Church in Milford.In Middlesex County, two weak tornadoes were confirmed by NWS Staff. A funnel cloud was observed from North Branford to Montville. The funnel cloud touched down briefly in Chatfield Hollow State Park near Killingworth then lifted briefly before touching down again in Chester near the intersection of Spring and Prospect Streets. Damage consisted primarily of downed trees and power lines. High winds downed other trees across the county.In New London County, an F1 tornado was confirmed by the NWS at the intersection of Day Hill Road and Rte. 148 in Lyme. This touch down area is in line with the F1 tornado in Chatfield State Park in Killingworth and the F0 tornado in Chester of Middlesex County. Tree tops were twisted near Ferry Road in Hadlyme. Near the intersection of Day Hill Road and Rte. 148, the trees were twisted off a few feet from the ground. This damage pattern continued to the east-northeast through a field to just near Rte. 82. Damage consisted primarily of downed trees and power lines.
Event by event
8 thunderstorm wind, 3 lightning, 3 tornado, 2 hail, 1 flash flood. Local standard time, as filed.
Lightning, New Haven
- When
- June 30, 8:00 AM EST
- Where
- New Haven County, Naugatuck
- Reported by
- NEWSPAPER
- Coordinates
- 41.362, -72.844 (the zone’s center; the record gives no point)
Lightning, Middlesex
- When
- June 30, 8:37 AM EST
- Where
- Middlesex County, Middletown
- Reported by
- NEWSPAPER
- Coordinates
- 41.451, -72.508 (the zone’s center; the record gives no point)
Flash Flood, New Haven
- When
- June 30, 2:20 PM EST to 11:59 PM EST
- Where
- New Haven County, Wallingford
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 41.362, -72.844 (the zone’s center; the record gives no point)
Hail, New Haven
- When
- June 30, 6:30 PM EST
- Where
- New Haven County, Wolcott
- Measured
- 0.75 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 41.600, -72.980
Thunderstorm Wind, New Haven
- When
- June 30, 6:47 PM EST to 7:00 PM EST
- Where
- New Haven County, Orange to New Haven
- Measured
- 60 kt (69 mph)
- Reported by
- TRAINED SPOTTER
- Coordinates
- 41.270, -73.030
Thunderstorm Wind, Middlesex
- When
- June 30, 6:48 PM EST
- Where
- Middlesex County, Killingworth
- Measured
- 55 kt (63 mph)
- Reported by
- TRAINED SPOTTER
- Coordinates
- 41.350, -72.570
Thunderstorm Wind, Fairfield
- When
- June 30, 7:00 PM EST
- Where
- Fairfield County, Sherman
- Measured
- 50 kt (58 mph)
- Reported by
- TRAINED SPOTTER
- Coordinates
- 41.570, -73.500
Thunderstorm Wind, New London
- When
- June 30, 7:18 PM EST
- Where
- New London County, Montville
- Measured
- 50 kt (58 mph)
- Reported by
- TRAINED SPOTTER
- Coordinates
- 41.450, -72.130
Thunderstorm Wind, Middlesex
- When
- June 30, 7:20 PM EST
- Where
- Middlesex County, Deep River
- Measured
- 55 kt (63 mph)
- Reported by
- TRAINED SPOTTER
- Coordinates
- 41.380, -72.430
Hail, New London
- When
- June 30, 7:29 PM EST
- Where
- New London County, Lyme
- Measured
- 1.25 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 41.300, -72.320
Tornado, Middlesex
- When
- June 30, 7:30 PM EST
- Where
- Middlesex County, Killingworth
- Measured
- 63
- Rating
- F1
- Path length
- 0.1 mi
- Path width
- 33 yd
- Reported by
- NWS STORM SURVEY
- Coordinates
- 41.350, -72.570
Tornado, New London
- When
- June 30, 7:30 PM EST
- Where
- New London County, Lyme
- Measured
- 66
- Rating
- F1
- Path length
- 0.1 mi
- Path width
- 17 yd
- Reported by
- NWS STORM SURVEY
- Coordinates
- 41.300, -72.320
Thunderstorm Wind, New London
- When
- June 30, 7:31 PM EST
- Where
- New London County, Salem
- Measured
- 52 kt (60 mph)
- Reported by
- TRAINED SPOTTER
- Coordinates
- 41.480, -72.270
Tornado, Middlesex
- When
- June 30, 7:45 PM EST
- Where
- Middlesex County, Chester
- Measured
- 55
- Rating
- F0
- Path length
- 0.1 mi
- Path width
- 33 yd
- Reported by
- NWS STORM SURVEY
- Coordinates
- 41.400, -72.450
Lightning, New Haven
- When
- June 30, 7:45 PM EST
- Where
- New Haven County, Milford
- Reported by
- TRAINED SPOTTER
- Coordinates
- 41.362, -72.844 (the zone’s center; the record gives no point)
Thunderstorm Wind, New Haven
- When
- June 30, 8:15 PM EST
- Where
- New Haven County, Branford to Guilford
- Measured
- 50 kt (58 mph)
- Reported by
- TRAINED SPOTTER
- Coordinates
- 41.270, -72.820
Thunderstorm Wind, New London
- When
- June 30, 8:15 PM EST
- Where
- New London County, North Stonington
- Measured
- 50 kt (58 mph)
- Reported by
- TRAINED SPOTTER
- Coordinates
- 41.430, -71.880
- Lightning
- A lightning strike that killed, injured or caused damage.
- 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.
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
- 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.
- Tornado
- A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.
After NWS Directive 10-1605, the rules offices file Storm Data by.
- Hail and Damaging Winds in Pennsylvania, June 30, 199810 injured · $41 million · 1.75 in hail · 12 events
- Lightning Strike in Florida, June 30, 19981 death · 1 event
- Damaging Winds in Pennsylvania, June 30, 1998$1.1 million · 57 kt wind · 14 events
- Tornadoes and Hail in New York, June 30, 19987 injured · F1 · 24 events
- Damaging Wind in Ohio, June 30, 1998$1.0 million · 61 kt wind · 1 event
- Damaging Wind in Ohio, June 30, 1998$500,000 · 73 kt wind · 1 event
- Hail and Damaging Winds in Pennsylvania, June 30, 1998$285,000 · 0.75 in hail · 7 events
- Flash Flooding and Hail in New York, June 30, 1998$205,000 · 2 in hail · 8 events
- Damaging Wind in Florida, June 30, 1998$200,000 · 50 kt wind · 1 event
- Flash Flood and Hail in Pennsylvania, June 30, 1998$105,000 · 65 kt wind · 14 events
- Flash Flooding and Hail in Ohio, June 30, 1998$112,000 · 1 in hail · 10 events
- Flash Flooding and Hail in New York, June 30, 1998$51,000 · 1 in hail · 17 events
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: 5658862, 5658863, 5658864, 5658476, 5658477, 5658478, 5658854, 5658857, 5658479, 5658858, 5658480, 5658859, 5658860, 5658853, 5658856, 5658855, 5658861.