Tropical Storm Henri made landfall in southwest Rhode Island around noon on August 22nd, then moved slowly northwestward and westward across northern Connecticut and weakened. Henri brought strong wind gusts and flash flooding.
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.
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.
The episode as NWS BOX wrote it up.
Tropical Storm Henri made landfall in southwest Rhode Island around noon on August 22nd, then moved slowly northwestward and westward across northern Connecticut and weakened. Henri brought strong wind gusts and flash flooding. The strongest gusts -- to 70 mph -- occurred along the Rhode Island coast. The worst flash flooding occurred in northeast Connecticut.
As the remnants of Henri moved eastward across southern New England on August 23rd, it spawned three tornadoes and a waterspout in MA and also it caused some renewed flooding.
The highest rainfall totals over the two-day period ranged from 5 to 6 inches in Hartford and Tolland Counties in northern Connecticut and in Franklin, Hampshire, and Hampden Counties in western Massachusetts.
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 Boston/Norton, MA wrote its last area forecast discussion before the first event at Aug 22, 7:05 AM EST, 1 hour 12 minutes earlier.
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</html>Hazardous Weather Outlook National Weather Service Boston/Norton MA 639 PM EDT Sat Aug 21 2021 MAZ002>004-008>012-222245- Western Franklin MA-Eastern Franklin MA-Northern Worcester MA- Western Hampshire MA-Western Hampden MA-Eastern Hampshire MA- Eastern Hampden MA-Southern Worcester MA- 639 PM EDT Sat Aug 21 2021 ...FLOOD WATCH IN EFFECT THROUGH MONDAY MORNING... This Hazardous Weather Outlook is for central Massachusetts and western Massachusetts. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. MAZ005>007-013>019-026-222245- Central Middlesex MA-Western Essex MA-Eastern Essex MA- Western Norfolk MA-Southeast Middlesex MA-Suffolk MA- Eastern Norfolk MA-Northern Bristol MA-Western Plymouth MA- Eastern Plymouth MA-Northern Middlesex MA- 639 PM EDT Sat Aug 21 2021 This Hazardous Weather Outlook is for eastern Massachusetts, northeastern Massachusetts and southeastern Massachusetts. .DAY ONE...Tonight. Hazardous weather is not expected at this time. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Hurricane Henri is expected to make landfall near eastern Long Island Sunday afternoon, then should weaken rapidly as it heads into Connecticut Sunday evening before slowly exiting the region Monday. There remains uncertainty in how far west Henri will track and how strong it will get before making landfall. The main hazards include damaging winds, flooding rain, and storm surge flooding. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. CTZ002>004-RIZ001>003-222245- Hartford CT-Tolland CT-Windham CT-Northwest Providence RI- Southeast Providence RI-Western Kent RI- 639 PM EDT Sat Aug 21 2021 ...TROPICAL STORM WARNING IN EFFECT... ...FLOOD WATCH IN EFFECT THROUGH MONDAY MORNING... This Hazardous Weather Outlook is for northern Connecticut and northern Rhode Island. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Tropical Storm Warning. Flood Watch. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Tropical Storm Warning. Flood Watch. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. RIZ006>008-222245- Washington RI-Newport RI-Block Island RI- 639 PM EDT Sat Aug 21 2021 ...HURRICANE WARNING IN EFFECT... ...STORM SURGE WARNING IN EFFECT... ...FLOOD WATCH IN EFFECT THROUGH MONDAY MORNING... This Hazardous Weather Outlook is for southern Rhode Island. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Storm Surge Warning. Hurricane Warning. Flood Watch. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Storm Surge Warning. Hurricane Warning. Flood Watch. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. MAZ020>024-222245- Southern Bristol MA-Southern Plymouth MA-Barnstable MA-Dukes MA- Nantucket MA- 639 PM EDT Sat Aug 21 2021 ...STORM SURGE WARNING IN EFFECT... ...TROPICAL STORM WARNING IN EFFECT... This Hazardous Weather Outlook is for southeastern Massachusetts. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Storm Surge Warning. Tropical Storm Warning. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Storm Surge Warning. Tropical Storm Warning. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. RIZ004-005-222245- Eastern Kent RI-Bristol RI- 639 PM EDT Sat Aug 21 2021 ...STORM SURGE WARNING IN EFFECT... ...TROPICAL STORM WARNING IN EFFECT... ...FLOOD WATCH IN EFFECT THROUGH MONDAY MORNING... This Hazardous Weather Outlook is for northern Rhode Island. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Storm Surge Warning. Tropical Storm Warning. Flood Watch. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Storm Surge Warning. Tropical Storm Warning. Flood Watch. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. ANZ235>237-256-222245- Rhode Island Sound-Narragansett Bay-Block Island Sound- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 639 PM EDT Sat Aug 21 2021 ...HURRICANE WARNING IN EFFECT... This Hazardous Weather Outlook is for Rhode Island coastal waters. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Hurricane Warning. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Hurricane Warning. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. ANZ232>234-255-222245- Nantucket Sound-Vineyard Sound-Buzzards Bay- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 639 PM EDT Sat Aug 21 2021 ...TROPICAL STORM WARNING IN EFFECT... This Hazardous Weather Outlook is for Massachusetts coastal waters. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Tropical Storm Warning. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Tropical Storm Warning. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. ANZ230-231-250-251-254-222245- Boston Harbor-Cape Cod Bay- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary-Massachusetts Bay and Ipswich Bay- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 639 PM EDT Sat Aug 21 2021 This Hazardous Weather Outlook is for Massachusetts coastal waters. .DAY ONE...Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Sunday through Friday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. For more information on upcoming hazardous weather, please see the Area Forecast Discussion on our webpage for the latest forecast thinking. There is also our Enhanced Hazardous Weather Outlook at www.weather.gov/box/ehwo For the latest updates...please visit our webpage at www.weather.gov/boston You can follow us on Facebook at www.facebook.com/nwsboston You can follow us on Twitter at @NWSBoston
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</html>The Brookhaven radar (KOKX), 109 km away, was scanning. The volume nearest the first event began at 19:00 UTC.
4 flash flood, 2 tropical storm, 1 flood. Local standard time, as filed.
In Coventry at 817 AM EST, a tree was down on State Street and at 1228 PM EST, power lines were down on Main Street at Hemlock Point. In Andover at 1112 AM EST, a tree was down on wires on Hutchinson Road.
In New Britain, a large tree was down on power lines on Biltmore Street. Winds generally were gusting to 40 to 45 mph.
There was widespread, damaging flash flooding throughout Manchester. Fire officials evacuated 18 homes due to flash flooding. The Hartford Courant newspaper had a photo of a culvert collapse on Ambassador Drive, after Lydall Brook overflowed its banks. The culvert running under Ambassador Drive collapsed, destroying that secion of road. On Prospect Street, at least four first-floor condominiums at the Millbridge Hollow Condominium complex when the Hop Brook overflowed its banks. Floodwaters also entered the first floor of the Highland Park Elementary School when the Porter Brook overflowed its banks. At 356 PM EST, WFSB-TV showed a video of major flash flooding on Gerard Street, with first responders canoeing to the front door of a residence. Other streets with significant flooding included Lydall Street, Middle Turnpike East, and Route 83 near Vernon. A CoCoRaHS observer in Manchester recorded a total of 5.68 inches from Henri, the majority of which fell during the afternoon of August 22.
In Wethersfield, the northbound side of Interstate 91 was closed due to high water, resulting in a major traffic jam.
In Vernon, the Hockanum River overflowed a roadway connecting Hartford Turnpike to the Colonial Corners shopping plaza, a motel, and a few other businesses. A significant amount of damage was done to the area parking lot. The motel guests were trapped by flood waters. Local officials created an egress onto I-84 to evacuate people from the motel. Other flooding was reported on Burke Road in Vernon. A CoCoRaHS observer in Vernon recorded 4.95 inches of rain for the two-day total from Henri. In nearby Hebron, 5.62 inches was recorded by a CoCoRaHS observer.
In South Windsor, the Podunk River overflowed its banks, causing significant flash flooding on Ellington Road, which was closed between Miller Road and Niederwerfer Road.
In Bolton, a local TV station video showed Mark Anthony Road cut off and washed away by flash flooding from the Hop River. A CoCoRaHS observer in nearby Vernon recorded 4.95 inches of rain for the two-day total from Henri. In Hebron, 5.62 inches was recorded by a CoCoRaHS observer.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Connecticut in 2021Every state in 2021This day in weather historyWarnings in Connecticut, August 2021The 2021 hurricane season
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: 979789, 979796, 979801, 979802, 979791, 979804, 979793.