As thunderstorms rolled into Massachusetts late Sunday afternoon and threatened flooding in Boston, images from the storm showed thunder and rain lashing parts of the state.
The storm left power outages, downed trees, and small fires in its wake. As of 6:30 p.m. Sunday, nearly 31,000 customers in the state were without electricity, according to a Massachusetts Emergency Management Agency map of outages.
Several car windows were smashed in Boston as trees snapped in half.

The storm clouded over a sunny morning in Massachusetts. The National Weather Service sent out several warnings Sunday afternoon for severe thunderstorms, flooding, and flash flooding for parts of the state, including in the Boston area.
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A video from Caraline Moholland in Wakefield shows rain pounding a window Sunday afternoon as thunder boomed outside.
@NWSBoston @ericfisher @TerryWBZ wow. A STORM here in Wakefield. Lightning and thunder increasing as I post. Of course we have moved inside. A strong one in Middlesex, Ct! pic.twitter.com/iifD257g3T
— Caraline Moholland (@cmoholland1) August 23, 2020
Drone photos from Twitter user Henry Swenson show dark clouds swirling over Topsfield as the storm rolled in around 5 p.m.
Some Drone pictures of the storms coming in from Topsfield MA. Was pretty insane! @MattNBCBoston @TimNBCBoston @NWSBoston @ChrisGNBCBoston @PeteNBCBoston pic.twitter.com/ChprFc29cO
— ❄️Henry Swenson🏂 (@HenrySwenson) August 23, 2020
Firefighters responded to College Road in Concord after a large tree fell down on power lines during the storm. The section of College Road near Barrett’s Mill Road has since reopened, officials said.
Concord police and fire are on College Rd with a tree down on the wires. College Rd is closed at Barrett’s Mill Rd. Please seek alternate routes. @CMLPmedia is responding. @ConcordMAPD pic.twitter.com/2B92aIlrHA
— Concord Fire-EMS (@ConcordMAFire) August 23, 2020
A tree also split in half on Ballard Street in Saugus.
@7News Tree down in Saugus pic.twitter.com/974Xs7Nm7i
— Nik Straticos (@Straticos_Nik) August 23, 2020
Drivers navigated through drenched roadways on Route 1 in Saugus Sunday afternoon as rain battered the town.
Flooding Route One Saugus. @PeteNBCBoston @KevinBoston25 @jreineron7 @ericfisher @MetMikeWCVB @kellyannwx @WxManAJB @JBrewerBoston25 @VickiGrafWX @CecyTelemundo @joshwurster_ @JackieLayerOn7 @JaisolWX @ChrisGNBCBoston @MichaelPageWx pic.twitter.com/OrRHU3PUVa
— Bryce Russo (Bubba) (@BrussoBryce) August 23, 2020
Pea-sized hail and flash flooding was reported to hit Hobson Street in Saugus as the storm moved through.
Pea size Hail, damaging wind, heavy rain flooding my street in Saugus, MA... @WX1BOX @NWSBoston pic.twitter.com/UaJxCkNCex
— Meteorologist David J Bagley🌎 (@DavidBagleyWX) August 23, 2020
In Westwood, officials rescued several people from flooded vehicles, Westwood firefighters tweeted. Trees and power lines also fell down there during the storm.
Rainwater flooded South Spencer Road near a railroad bridge in Spencer, officials tweeted at 6:50 p.m.
Flooded underpass on South Spencer Road @ the railroad bridge. Please avoid the area. pic.twitter.com/k0YrBC9Xet
— Spencer Police (@SpencerMAPolice) August 23, 2020
A video from Wakefield showed treetops blowing in the wind, and subsequent photos showed tree roots ripped from the ground.
.@ericfisher I don’t know Wakefield, MA is on your radar but I’m pretty sure that the storm is right over us. pic.twitter.com/Zj0eXMwLIG
— Stephanie St. Martin (@StephStMartin) August 23, 2020
Some Wakefield streets had apparently flooded Sunday afternoon, and photos showed branches dangling from power lines.
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Wakefield pic.twitter.com/ATKhZO6TRp
— NW (@nkwest828) August 23, 2020
At 4:25 p.m., lightning was seen striking the ocean off of Folly Cove in Rockport.

Dark clouds were also seen rolling in over the ocean at Wingaersheek Beach in Gloucester.
Crazy sky in Gloucester with a storm rolling in. #WingaersheekBeach pic.twitter.com/sBpID0LKsV
— Dan Cote (@dancote) August 23, 2020
A video from Hull shows wind and rain lashing a pool deck and flinging a chair into the water.
There goes the chair pic.twitter.com/ddI5nPNV7y
— Patrick J Curtis (@PatrickJCurtis) August 23, 2020
Photos from Spencer police show cars partially submerged in water on flooded roads.
Flooded underpass on South Spencer Road @ the railroad bridge. Please avoid the area. pic.twitter.com/k0YrBC9Xet
— Spencer Police (@SpencerMAPolice) August 23, 2020
Alyssa Lukpat can be reached at alyssa.lukpat@globe.com. Follow her on Twitter @AlyssaLukpat.