High astronomical tides produced some very minor coastal flooding around the time of high tide on east coast of MA in the early afternoon. A strong cold front joined forces with a negatively tilting upper level disturbance to produce a narrow line of severe thunderstorms that impacted south coastal RI and MA late in the afternoon.
Every event with a place to put it; 10 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.
High astronomical tides produced some very minor coastal flooding around the time of high tide on east coast of MA in the early afternoon. A strong cold front joined forces with a negatively tilting upper level disturbance to produce a narrow line of severe thunderstorms that impacted south coastal RI and MA late in the afternoon. Strong to damaging winds occurred in southeast MA prior to the arrival of the front, as temperatures rose into the 50s and made for better mixing. Additionally, strong to locally damaging post-frontal winds occurred for a few hours into the evening across central and eastern MA.
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 Apr 9, 9:07 AM EST, 2 hours 46 minutes earlier.
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</html>Hazardous Weather Outlook National Weather Service Boston/Norton MA 421 AM EDT Thu Apr 9 2020 MAZ007-015-016-019-022-100830- Eastern Essex MA-Suffolk MA-Eastern Norfolk MA-Eastern Plymouth MA- Barnstable MA- 421 AM EDT Thu Apr 9 2020 ...COASTAL FLOOD ADVISORY IN EFFECT UNTIL 8 AM EDT FRIDAY... ...WIND ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 9 PM EDT THIS EVENING... This Hazardous Weather Outlook is for eastern Massachusetts, northeastern Massachusetts and southeastern Massachusetts. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Coastal Flood Advisory. Wind Advisory. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Coastal Flood Advisory. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. MAZ023-024-100830- Dukes MA-Nantucket MA- 421 AM EDT Thu Apr 9 2020 ...WIND ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 9 PM EDT THIS EVENING... This Hazardous Weather Outlook is for southeastern Massachusetts. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Wind Advisory. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. CTZ002>004-MAZ002>006-008>014-017-018-020-021-026-RIZ001-003-008- 100830- Hartford CT-Tolland CT-Windham CT-Western Franklin MA- Eastern Franklin MA-Northern Worcester MA-Central Middlesex MA- Western Essex MA-Western Hampshire MA-Western Hampden MA- Eastern Hampshire MA-Eastern Hampden MA-Southern Worcester MA- Western Norfolk MA-Southeast Middlesex MA-Northern Bristol MA- Western Plymouth MA-Southern Bristol MA-Southern Plymouth MA- Northern Middlesex MA-Northwest Providence RI-Western Kent RI- Block Island RI- 421 AM EDT Thu Apr 9 2020 ...WIND ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 9 PM EDT THIS EVENING... This Hazardous Weather Outlook is for northern Connecticut, central Massachusetts, eastern Massachusetts, northeastern Massachusetts, southeastern Massachusetts, western Massachusetts, northern Rhode Island and southern Rhode Island. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Wind Advisory. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. RIZ002-004-006-007-100830- Southeast Providence RI-Eastern Kent RI-Washington RI-Newport RI- 421 AM EDT Thu Apr 9 2020 ...COASTAL FLOOD ADVISORY IN EFFECT UNTIL 8 AM EDT FRIDAY... ...WIND ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 9 PM EDT THIS EVENING... This Hazardous Weather Outlook is for northern Rhode Island and southern Rhode Island. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Coastal Flood Advisory. Wind Advisory. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Coastal Flood Advisory. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. RIZ005-100830- Bristol RI- 421 AM EDT Thu Apr 9 2020 ...COASTAL FLOOD ADVISORY IN EFFECT UNTIL 8 AM EDT FRIDAY... This Hazardous Weather Outlook is for northern Rhode Island. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Coastal Flood Advisory. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Coastal Flood Advisory. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. ANZ232>235-237-250-254>256-100830- Nantucket Sound-Vineyard Sound-Buzzards Bay-Rhode Island Sound- Block Island Sound- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 421 AM EDT Thu Apr 9 2020 ...GALE WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 8 PM EDT FRIDAY... This Hazardous Weather Outlook is for Massachusetts coastal waters and Rhode Island coastal waters. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Warning. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Warning. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. ANZ231-251-100830- Cape Cod Bay-Massachusetts Bay and Ipswich Bay- 421 AM EDT Thu Apr 9 2020 ...GALE WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 2 PM EDT FRIDAY... This Hazardous Weather Outlook is for Massachusetts coastal waters. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Warning. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Warning. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. ANZ230-236-100830- Boston Harbor-Narragansett Bay- 421 AM EDT Thu Apr 9 2020 This Hazardous Weather Outlook is for Massachusetts coastal waters and Rhode Island coastal waters. .DAY ONE...Today and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. 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/us.nationalweatherservice.boston.gov You can follow us on Twitter at @NWSBoston
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</html>The Boston radar (KBOX), 34 km away, was scanning. The volume nearest the first event began at 20:07 UTC.
5 strong wind, 3 high wind, 3 thunderstorm wind, 2 coastal flood. Local standard time, as filed.
At 1153 PM EST (1253 PM EDT) in Boston, high astronomical tides caused two southbound lanes of Morrissey Blvd., between UMass-Boston and Freeport Street to be closed due to minor coastal flooding.
In Salisbury at 1235 PM EST (135 PM EDT), high astronomical tides caused the temporary closure of Beach Road at the Salisbury Beach State Reservation due to minor coastal flooding.
Damaging southerly winds occurred out ahead of an approaching cold front, as temperatures in the 50s led to mixing down of stronger winds aloft. At 110 PM EST (210 PM EDT) in Fairhaven, an amateur radio operator reported a wind gust to 58 mph, which then reached 62 mph at 117 PM (217 PM EDT). At 212 PM EST in Westport, a gust to 59 mph was measured. In nearby Wareham at 237 PM EST, a wind gust to 62 mph also was recorded. In Dartmouth at 211 PM EST, a tree was down on power lines on Slocum Road. In Westport at 234 PM EST, a tree was down at the intersection of Division and Horseneck Roads and a large branch was down on Division Road. In Fairhaven at 250 PM EST, a utility pole was down on Yankee Lane and Mill Road.
Damaging southerly winds occurred out ahead of an approaching cold front, as temperatures in the 50s led to mixing down of stronger winds aloft. In Wareham at 237 PM EST (337 PM EDT), a mesonet site recorded a wind gust to 62 mph. A gust to 62 mph was also recorded in nearby Fairhaven at 117 PM EST. In Wareham at 305 PM EST, a tree fell onto a house on Pequod Lane, causing damage to a second floor deck.
At 240 PM EST (340 PM EDT), a CWOP station at Duxbury recorded a wind gust to 54 mph. This occurred before the passage of a cold front. In Plymouth at 306 PM EST, a tree and power lines were down on Wareham Road. After the passage of the front, at 516 PM EST, a tree was down on Evergreen Street in Kingston.
In the Assonet portion of Freetown at 309 PM EST (409 PM EDT), a flag pole was blown down and was leaning on power lines on Prospect Road.
At 333 PM EST (433 PM EDT) a narrow line of thunderstorms produced a wind gust to 58 mph at Marstons Mills, MA in the town of Barnstable.
At 345 PM EST (445 PM EST), a narrow line of thunderstorms produced a wind gust to 60 mph in East Falmouth.
At 407 PM EST (507 PM EDT), the ASOS at Westfield-Barnes Airport (KBAF) recorded a wind gust to 47 mph. At 447 PM EST, the AWOS at Westover AFB recorded a gust to 45 mph. In Chicopee at 508 PM EST, a tree and wires were down on Lombard Street.
In Worcester at 531 PM EST (631 PM EDT), power lines were down on Rowena Road.
In Wrentham at 543 PM EST (643 PM EDT), tree was down on Creek Street. At 602 PM EST (702 PM EDT), the ASOS at the Norwood Airport recorded a wind gust to 48 mph.
At 608 PM EST (708 PM EDT), the ASOS atop the Blue Hill recorded a post-frontal wind gust to 61 mph.
At 649 PM EST (749 PM EDT), the ASOS at the Lawrence Airport recorded a wind gust to 45 mph. At 8 PM (9 PM EDT) in Dracut, a tree was down on wires on Nashua Street.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Massachusetts in 2020Every state in 2020This day in weather historyWarnings in Massachusetts, April 2020
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 2026-10-01. Each event’s entry at NCEI: 876103, 876104, 876204, 876212, 876187, 876101, 876093, 876096, 876175, 876161, 876164, 876157, 876169.