Massachusetts, 2020

Tornado and Hail in Massachusetts, October 7, 2020

October 7, 2020 · NWS BOX · 63 events in 11 counties and zones

A squall line formed in New York State then raced eastward in the late afternoon and early evening, gathering strength as it raced across Massachusetts, northeast Connecticut, and northern Rhode Island. Hundreds of thousands of people were left without power in southern New England, as there was widespread tree and power line damage from winds generally gusting to between 50 and 80 mph.

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
5
Property damage
$153,000
Crop damage
None recorded
Events
63

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 BOX wrote it up.

A squall line formed in New York State then raced eastward in the late afternoon and early evening, gathering strength as it raced across Massachusetts, northeast Connecticut, and northern Rhode Island. Hundreds of thousands of people were left without power in southern New England, as there was widespread tree and power line damage from winds generally gusting to between 50 and 80 mph. The Storm Prediction Center officially classified it as a derecho. Along the line, an isolated brief tornado touched down in Millis, Massachusetts. Prior to the derecho, strong southwest winds gusted to 40-50 mph in the early afternoon.

What forecasters said that day

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 Oct 7, 1:06 PM EST, 9 minutes earlier.

Area forecast discussion, Oct 7, 1:06 PM EST, 9 minutes before
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Hazardous weather outlook, Oct 7, 3:22 AM EST, 9 hours 53 minutes before
Hazardous Weather Outlook
National Weather Service Boston/Norton MA
422 AM EDT Wed Oct 7 2020

MAZ002>006-008>014-026-080830-
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 Middlesex MA-
422 AM EDT Wed Oct 7 2020

...HIGH WIND WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 2 AM EDT
THURSDAY...

This Hazardous Weather Outlook is for central Massachusetts,
eastern Massachusetts, northeastern Massachusetts and western
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.

   High Wind Warning.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

CTZ002>004-MAZ017-018-020-021-RIZ001>007-080830-
Hartford CT-Tolland CT-Windham CT-Northern Bristol MA-
Western Plymouth MA-Southern Bristol MA-Southern Plymouth MA-
Northwest Providence RI-Southeast Providence RI-Western Kent RI-
Eastern Kent RI-Bristol RI-Washington RI-Newport RI-
422 AM EDT Wed Oct 7 2020

...WIND ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 2 AM EDT
THURSDAY...

This Hazardous Weather Outlook is for northern Connecticut,
southeastern 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...Thursday through Tuesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

MAZ007-015-016-080830-
Eastern Essex MA-Suffolk MA-Eastern Norfolk MA-
422 AM EDT Wed Oct 7 2020

...HIGH WIND WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 2 AM EDT
THURSDAY...

This Hazardous Weather Outlook is for eastern Massachusetts and
northeastern 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.

   High Wind Warning.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

MAZ022>024-080830-
Barnstable MA-Dukes MA-Nantucket MA-
422 AM EDT Wed Oct 7 2020

...HIGH WIND WARNING IN EFFECT FROM NOON TODAY TO 2 AM EDT
THURSDAY...

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.

   High Wind Warning.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

MAZ019-RIZ008-080830-
Eastern Plymouth MA-Block Island RI-
422 AM EDT Wed Oct 7 2020

...WIND ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 2 AM EDT
THURSDAY...

This Hazardous Weather Outlook is for southeastern Massachusetts
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...Thursday through Tuesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

ANZ231>235-237-250-254>256-080830-
Cape Cod Bay-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-
422 AM EDT Wed Oct 7 2020

...GALE WARNING IN EFFECT FROM 11 AM THIS MORNING TO NOON EDT
THURSDAY...

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...Thursday through Tuesday.

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.

ANZ230-251-080830-
Boston Harbor-Massachusetts Bay and Ipswich Bay-
422 AM EDT Wed Oct 7 2020

...GALE WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 8 AM EDT
THURSDAY...

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...Thursday through Tuesday.

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.

ANZ236-080830-
Narragansett Bay-
422 AM EDT Wed Oct 7 2020

...GALE WARNING IN EFFECT FROM 11 AM THIS MORNING TO 5 AM EDT
THURSDAY...

This Hazardous Weather Outlook is for 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...Thursday through Tuesday.

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

The radar

The Boston radar (KBOX), 78 km away, was scanning. The volume nearest the first event began at 20:27 UTC.

Open the radar archive at this moment

Event by event

59 thunderstorm wind, 2 hail, 1 strong wind, 1 tornado. Local standard time, as filed.

Strong Wind, Barnstable

When
October 7, 1:15 PM EST
Where
Barnstable forecast zone
Measured
43 kt (49 mph) estimated gust
Property damage
$1,000
Reported by
Amateur Radio
Coordinates
41.684, -70.274 (the zone’s center; the record gives no point)

Southwest winds gusted to 40-50 mph ahead of an approaching front. In Falmouth, a large tree was down on Gifford Street at AmVets Avenue.

Thunderstorm Wind, Franklin

When
October 7, 3:29 PM EST
Where
Franklin County, 0.52 mi NNW of Rowe
Measured
55 kt (63 mph) estimated gust
Property damage
$3,000
Reported by
Amateur Radio
Coordinates
42.706, -72.906

In Rowe, multiple small trees were down on Ford Hill Road. Also, several 3 to 4 inch branches were down, with power outages.

Thunderstorm Wind, Hampshire

When
October 7, 3:42 PM EST
Where
Hampshire County, 0.63 mi NW of Worthington Corners to 0.2 mi ENE of Ringville
Measured
55 kt (63 mph) estimated gust
Property damage
$2,000
Reported by
Amateur Radio
Coordinates
42.426, -72.939

Im Worthington, a tree and wires were reported down on Sawyer Road, Thayer Hill Road, and Old Main Road.

Thunderstorm Wind, Franklin

When
October 7, 3:45 PM EST
Where
Franklin County, 0.28 mi SW of Lyonsville
Measured
60 kt (69 mph) estimated gust
Property damage
$10,000
Reported by
Amateur Radio
Coordinates
42.668, -72.725

In Colrain, multiple trees, utility poles, and wires were down on Adamsville Road and Foundry Village Road.

Thunderstorm Wind, Hampshire

When
October 7, 3:47 PM EST
Where
Hampshire County, 0.51 mi ESE of Plainfield
Measured
55 kt (63 mph) estimated gust
Property damage
$500
Reported by
Amateur Radio
Coordinates
42.517, -72.911

In Plainfield, a tree was down on Route 116.

Thunderstorm Wind, Franklin

When
October 7, 3:48 PM EST
Where
Franklin County, 0.65 mi S of Burkville
Measured
55 kt (63 mph) estimated gust
Property damage
$500
Reported by
Amateur Radio
Coordinates
42.511, -72.699

In Conway, a tree was down on Baptist Hill Road.

Thunderstorm Wind, Franklin

When
October 7, 3:48 PM EST
Where
Franklin County, 0.44 mi NE of Bernardston
Measured
55 kt (63 mph) estimated gust
Property damage
$500
Reported by
Amateur Radio
Coordinates
42.674, -72.543

In Bernardston, a tree was down, blocking the southbound offramp to Interstate 91 (Exit 28).

Thunderstorm Wind, Franklin

When
October 7, 3:49 PM EST
Where
Franklin County, 2.06 mi SW of Buckland Four Corner
Measured
55 kt (63 mph) estimated gust
Property damage
$2,000
Reported by
Amateur Radio
Coordinates
42.546, -72.825

In Ashfield, trees were down on Hawley Road.

Thunderstorm Wind, Hampshire

When
October 7, 3:52 PM EST
Where
Hampshire County, 1.56 mi WNW of Ringville
Measured
55 kt (63 mph) estimated gust
Property damage
$800
Reported by
Amateur Radio
Coordinates
42.381, -72.947

In Worthington, a tree and wires were down on West Street.

Thunderstorm Wind, Franklin

When
October 7, 3:53 PM EST
Where
Franklin County, 1.25 mi SW of Greenfield
Measured
55 kt (63 mph) estimated gust
Property damage
$5,000
Reported by
Amateur Radio
Coordinates
42.590, -72.620

In Greenfield, a tree was down on a car on Interstate 91 southbound. No injuries reported.

Thunderstorm Wind, Hampshire

When
October 7, 3:54 PM EST
Where
Hampshire County, 0.78 mi SW of Leeds
Measured
55 kt (63 mph) estimated gust
Property damage
$500
Reported by
Amateur Radio
Coordinates
42.342, -72.711

In the Leeds section of Northampton, a tree was down on Chesterfield Road.

Thunderstorm Wind, Franklin

When
October 7, 3:58 PM EST
Where
Franklin County, East Whately to 0.98 mi WSW of South Deerfield
Measured
60 kt (69 mph) estimated gust
Property damage
$5,000
Reported by
Amateur Radio
Coordinates
42.450, -72.620

In both Deerfield and Whately, multiple trees were down in Interstate 91, with the highway blocked.

Thunderstorm Wind, Hampden

When
October 7, 4:00 PM EST
Where
Hampden County, 0.23 mi SSE of Feeding Hills to 1.97 mi WSW of Agawam Bowles Fld Ar
Measured
55 kt (63 mph) estimated gust
Property damage
$15,000
Reported by
Amateur Radio
Coordinates
42.067, -72.678

In Agawam, a tree was down on three cars on Pine Street at Barry Street. No injuries were reported. Also, trees were down in the Feeding Hills and other sections of town.

Thunderstorm Wind, Hampshire

When
October 7, 4:00 PM EST to 4:14 PM EST
Where
Hampshire County, 1.37 mi NNE of Easthampton to 1.13 mi ESE of Easthampton
Measured
65 kt (75 mph) estimated gust
Property damage
$12,000
Reported by
Amateur Radio
Coordinates
42.289, -72.672

There was a significant amount of damage in Easthampton. A tree was down on a car on Florence Road. A power line was down on a car on Lyman Street. A large tree was down on Route 10 about one-half mile north of Union Street. Numerous trees were down on Route 141.

Thunderstorm Wind, Hampshire

When
October 7, 4:02 PM EST
Where
Hampshire County, 2.55 mi SE of Easthampton
Measured
76 kt (87 mph) measured gust
Reported by
Mesonet
Coordinates
42.242, -72.648

At 502 PM EDT, a Weatherflow mesonet site atop Mount Tom in Holyoke, MA measured a peak wind gust of 88 mph.

Thunderstorm Wind, Hampshire

When
October 7, 4:03 PM EST
Where
Hampshire County, 0.4 mi NNE of Huntington
Measured
55 kt (63 mph) estimated gust
Property damage
$500
Reported by
Amateur Radio
Coordinates
42.235, -72.876

In Huntington, a tree was down on Route 112.

Thunderstorm Wind, Hampshire

When
October 7, 4:09 PM EST to 4:10 PM EST
Where
Hampshire County, 0.27 mi W of Mill Vly to 0.14 mi S of Amherst
Measured
55 kt (63 mph) estimated gust
Property damage
$1,000
Reported by
Amateur Radio
Coordinates
42.370, -72.525

In Amherst, a tree and wires were down on North Pleasant Street and a tree was down on Northampton Road (Route 9) just east of Dana Street.

Hail, Hampshire

When
October 7, 4:11 PM EST
Where
Hampshire County, 0.92 mi ENE of Westhampton
Measured
0.75 in hail
Reported by
Amateur Radio
Coordinates
42.303, -72.753

In Westhampton, dime size hail was reported on Easthampton Road.

Thunderstorm Wind, Hampden

When
October 7, 4:11 PM EST
Where
Hampden County, (Cef)westovr Afb Chi
Measured
55 kt (63 mph) measured gust
Reported by
AWOS
Coordinates
42.200, -72.530

In Chicopee at 511 PM EDT, the AWOS at the Westover Air Reserve Base (KCEF) recorded a wind gust to 63 mph.

Thunderstorm Wind, Hampden

When
October 7, 4:13 PM EST
Where
Hampden County, (Baf)barnes Arpt Wst
Measured
64 kt (74 mph) measured gust
Reported by
ASOS
Coordinates
42.170, -72.720

In Westfield at 513 PM EDT, the ASOS at Westfield-Barnes Regional Airport (KBAF) recorded a wind gust to 74 mph.

Thunderstorm Wind, Hampden

When
October 7, 4:15 PM EST to 4:24 PM EST
Where
Hampden County, 1.51 mi SE of East Springfield to 0.27 mi W of Springfield
Measured
56 kt (64 mph) estimated gust
Property damage
$4,000
Reported by
Trained Spotter
Coordinates
42.115, -72.509

In Springfield, a tree was down on Liberty Street. A tree and wires were down on Birchland Avenue. A tree split and landed on a house on Jeffrey Road.

Thunderstorm Wind, Worcester

When
October 7, 4:21 PM EST
Where
Worcester County, 1.13 mi E of Gilbertville
Measured
55 kt (63 mph) estimated gust
Property damage
$800
Reported by
Amateur Radio
Coordinates
42.318, -72.178

In Hardwick a tree was down on wires on River Run Road.

Thunderstorm Wind, Worcester

When
October 7, 4:24 PM EST
Where
Worcester County, 1.02 mi E of Fitchburg Muni Arpt
Measured
52 kt (60 mph) measured gust
Reported by
ASOS
Coordinates
42.550, -71.750

In Fitchburg at 524 PM EDT, the ASOS at the Fitchburg Airport (KFIT) recorded a wind gust to 60 mph.

Thunderstorm Wind, Worcester

When
October 7, 4:27 PM EST
Where
Worcester County, 0.51 mi E of (Orh)worcester Muni
Measured
61 kt (70 mph) measured gust
Reported by
ASOS
Coordinates
42.270, -71.870

In Worcester at 527 PM EDT, the ASOS at the Worcester Regional Airport recorded a wind gust to 70 mph.

Thunderstorm Wind, Middlesex

When
October 7, 4:27 PM EST
Where
Middlesex County, 1.16 mi ESE of North Shirley
Measured
61 kt (70 mph) estimated gust
Injuries
5 direct, 0 indirect
Property damage
$2,000
Reported by
Fire Department/Rescue
Coordinates
42.573, -71.609

The Devens Fire Chief reported five injuries from Fort Devens when a military-grade tent was lifted up and blown down an embankment by thunderstorm winds. It occurred during a training exercise. Five people were taken to the hospital, treated, and released. Four of the injuries were minor, but one trainee, who was holding onto the tent, was also lifted up and blown 40 feet down the embankment, and received a concussion.

Thunderstorm Wind, Hampden

When
October 7, 4:30 PM EST
Where
Hampden County, 2.21 mi SW of Westfield to 0.48 mi ESE of Gillett Corner
Measured
61 kt (70 mph) estimated gust
Property damage
$5,000
Reported by
Amateur Radio
Coordinates
42.096, -72.779

In Southwick, there were multiple reports of trees down...on Ed Holcomb Road, Hillside Road, at the Ranch Golf Club, Miller Road, and at the Southwick Acres Campground.

Thunderstorm Wind, Worcester

When
October 7, 4:30 PM EST
Where
Worcester County, 0.7 mi WSW of Westwood Hills to 0.68 mi NNE of Mt St James
Measured
61 kt (70 mph) estimated gust
Property damage
$5,000
Reported by
Amateur Radio
Coordinates
42.278, -71.843

In Worcester, numerous tree limbs were down across the city. On Beechmont Street, a tree limb fell onto a house. On Pleasant Street, a tree limb also fell onto a house. Other limbs were down on Brantwood Road, Main Street, Varnum Street, June Street, Maxwell Street, and Holly Terrace.

Thunderstorm Wind, Hampden

When
October 7, 4:35 PM EST
Where
Hampden County, 0.89 mi SE of East Longmeadow
Measured
55 kt (63 mph) estimated gust
Property damage
$8,000
Reported by
Public
Coordinates
42.060, -72.509

In East Longmeadow, a tree fell onto a garage and a truck at Westernview Circle.

Thunderstorm Wind, Middlesex

When
October 7, 4:37 PM EST
Where
Middlesex County, 0.86 mi SE of Hudson
Measured
52 kt (60 mph) measured gust
Reported by
Amateur Radio
Coordinates
42.390, -71.560

In Hudson at 537 PM EDT, an amateur radio operator reported a wind gust to 60 mph.

Thunderstorm Wind, Hampden

When
October 7, 4:40 PM EST
Where
Hampden County, 0.16 mi E of Ludlow Center
Measured
55 kt (63 mph) estimated gust
Property damage
$1,000
Reported by
Amateur Radio
Coordinates
42.200, -72.467

In Ludlow, trees were down on Colonial Drive.

Thunderstorm Wind, Worcester

When
October 7, 4:40 PM EST
Where
Worcester County, 1.85 mi ENE of Boylston Center
Measured
61 kt (70 mph) estimated gust
Property damage
$2,000
Reported by
Public
Coordinates
42.356, -71.695

In Boylston, trees were snapped on Green Street.

Thunderstorm Wind, Worcester

When
October 7, 4:40 PM EST
Where
Worcester County, 1.94 mi WNW of Pratts Jct to 1.77 mi NNE of Sterling Arpt
Measured
56 kt (64 mph) estimated gust
Property damage
$3,000
Reported by
Amateur Radio
Coordinates
42.480, -71.766

In Sterling, multiple trees and wires were down on Kilburn Road, Tuttle Road, and North Row Road.

Thunderstorm Wind, Norfolk

When
October 7, 4:45 PM EST
Where
Norfolk County, 0.62 mi SW of Plimptonville
Measured
61 kt (70 mph) estimated gust
Property damage
$10,000
Reported by
Public
Coordinates
42.163, -71.238

In Walpole, a teacher from the Norfolk County Agricultural High School reported that nearly 100 trees were blown down across town.

Thunderstorm Wind, Worcester

When
October 7, 4:45 PM EST
Where
Worcester County, 3.19 mi ESE of Webster to 0.64 mi SSE of Webster
Measured
65 kt (75 mph) estimated gust
Property damage
$5,000
Reported by
Amateur Radio
Coordinates
42.029, -71.825

In Webster, a tree was on 3rd Street, on Loveland Street, and a tree was down on a house on Anthony Street.

Thunderstorm Wind, Worcester

When
October 7, 4:45 PM EST
Where
Worcester County, 0.37 mi SE of Oxford
Measured
52 kt (60 mph) estimated gust
Property damage
$4,000
Reported by
Amateur Radio
Coordinates
42.116, -71.865

In Oxford, multiple trees and wires were down across town.

Thunderstorm Wind, Worcester

When
October 7, 4:45 PM EST
Where
Worcester County, 0.32 mi SSW of Maplewood
Measured
55 kt (63 mph) estimated gust
Property damage
$500
Reported by
Amateur Radio
Coordinates
42.226, -71.722

In North Grafton, a tree was down at the intersection of Jay Street and Francis Street.

Thunderstorm Wind, Worcester

When
October 7, 4:45 PM EST
Where
Worcester County, 1.31 mi WSW of Wachusett
Measured
55 kt (63 mph) estimated gust
Property damage
$3,000
Reported by
Public
Coordinates
42.520, -71.892

In Westminster, multiple trees were down on Worcester Road (Route 140).

Thunderstorm Wind, Worcester

When
October 7, 4:45 PM EST
Where
Worcester County, 0.23 mi SSW of Fitchburg
Measured
50 kt (58 mph) estimated gust
Property damage
$1,000
Reported by
Trained Spotter
Coordinates
42.577, -71.802

In Fitchburg, a tree and wires were down on Ash Street and a one foot diameter branch was down on Milk Street, with wires down.

Thunderstorm Wind, Worcester

When
October 7, 4:46 PM EST
Where
Worcester County, 0.94 mi ENE of Pratts Jct
Measured
55 kt (63 mph) estimated gust
Property damage
$500
Reported by
Public
Coordinates
42.474, -71.712

In Lancaster, a small tree was down on Brockelman Road.

Tornado, Norfolk

When
October 7, 4:50 PM EST to 4:51 PM EST
Where
Norfolk County, 1.54 mi NW of Millis to 1.06 mi NW of Millis
Rating
EF0
Path length
0.53 mi
Path width
50 yd
Property damage
$6,000
Reported by
NWS Storm Survey
Coordinates
42.184, -71.373

Based on information received from emergency management officials and based on Doppler radar imagery, the National Weather Service conducted a survey on Oct. 15 and was able to determine that a weak tornado circulation occurred in a small portion of the town of Millis, MA on October 7. It was embedded within the larger area of derecho/straight-line wind damages that occurred. It was on the ground for less than a minute, traveled about one-half mile, had a path width of only 50 yards, and estimated maximum wind speeds of 75 to 80 mph.

The tornado began near Orchard Street, just to the west of Ridge Street, and traveled east-southeastward to the Oak Grove Playground/Millis Historical Commission on Exchange Street. On Orchard Street, the tops of a few large trees were sheared off. According to one resident, she had two trees down from west to east in her back yard, but she observed the wind change directions and the aforementioned tree tops were blown northward, landing in her yard. At the Oak Grove Playground, a large tree was downed from west to east but a metal lamp post was blown northwestward toward that tree. Other trees were observed down from as far west as Tupello Road to as far south as Causeway Street and Island Road. Damage reportedly went as far east as Environmental Drive, Larch Road, and Dwight Street, but that had since been cleaned up. Those damage areas likely were associated with the broader straight-line winds of the large-scale derecho that impacted much of Massachusetts, northeast Connecticut, and northern Rhode Island on October 7th.

Thunderstorm Wind, Worcester

When
October 7, 4:50 PM EST
Where
Worcester County, 0.49 mi E of Northbridge
Measured
55 kt (63 mph) estimated gust
Property damage
$500
Reported by
Amateur Radio
Coordinates
42.150, -71.641

In Northbridge, a tree was down on School Street.

Hail, Worcester

When
October 7, 4:51 PM EST
Where
Worcester County, 1.38 mi S of Rutland
Measured
0.75 in hail
Reported by
Public
Coordinates
42.360, -71.950

Dime size hail was reported in Rutland.

Thunderstorm Wind, Worcester

When
October 7, 4:53 PM EST
Where
Worcester County, 1.24 mi SW of Mendon
Measured
50 kt (58 mph) measured gust
Reported by
Mesonet
Coordinates
42.090, -71.570

In Mendon at 553 PM EDT, a mesonet site recorded a wind gust to 58 mph.

Thunderstorm Wind, Norfolk

When
October 7, 4:55 PM EST
Where
Norfolk County, 0.84 mi S of Medfield
Measured
55 kt (63 mph) estimated gust
Property damage
$2,000
Reported by
Broadcast Media
Coordinates
42.168, -71.299

In Medfield, multiple trees were down around South Street.

Thunderstorm Wind, Worcester

When
October 7, 4:55 PM EST
Where
Worcester County, 1.33 mi E of Leominster
Measured
55 kt (63 mph) estimated gust
Property damage
$500
Reported by
Amateur Radio
Coordinates
42.529, -71.724

In Leominster, a tree was down on Mountain View Road.

Thunderstorm Wind, Middlesex

When
October 7, 5:00 PM EST
Where
Middlesex County, 1 mi NE of West Concord to 0.75 mi NE of West Concord
Measured
61 kt (70 mph) estimated gust
Property damage
$4,000
Reported by
Public
Coordinates
42.462, -71.408

In West Concord, a tree was uprooted and a tree was split in half on Wright Road and a telephone pole was down on Laws Brook Road.

Thunderstorm Wind, Norfolk

When
October 7, 5:00 PM EST
Where
Norfolk County, 0.18 mi NW of Needham Jct
Measured
55 kt (63 mph) estimated gust
Property damage
$2,000
Reported by
Public
Coordinates
42.272, -71.233

In Needham, multiple trees were down on Laurel Drive.

Thunderstorm Wind, Suffolk

When
October 7, 5:00 PM EST
Where
Suffolk County, 0.86 mi SW of (Bos)logan Intl Arpt
Measured
57 kt (66 mph) measured gust
Reported by
ASOS
Coordinates
42.360, -71.010

At 6 PM EDT in Boston, the ASOS at Logan International Airport (KBOS) recorded a wind gust to 66 mph.

Thunderstorm Wind, Norfolk

When
October 7, 5:01 PM EST
Where
Norfolk County, 1.47 mi NNE of West Wrentham
Measured
50 kt (58 mph) measured gust
Reported by
Mesonet
Coordinates
42.040, -71.410

In Wrentham at 601 PM EDT, a mesonet site measured a wind gust to 58 mph.

Thunderstorm Wind, Norfolk

When
October 7, 5:01 PM EST
Where
Norfolk County, (Owd)norwood Mem Arp
Measured
50 kt (58 mph) measured gust
Reported by
ASOS
Coordinates
42.180, -71.170

In Norwood at 601 PM EDT, the ASOS at Norwood Airport (KOWD) recorded a wind gust to 58 mph.

Thunderstorm Wind, Norfolk

When
October 7, 5:02 PM EST
Where
Norfolk County, 2.14 mi NNE of Ponkapog
Measured
59 kt (68 mph) measured gust
Reported by
ASOS
Coordinates
42.210, -71.110

In Milton, atop the Blue Hill, the ASOS at the Blue Hill Observatory (KMQE) recorded a wind gust to 68 mph.

Thunderstorm Wind, Norfolk

When
October 7, 5:05 PM EST
Where
Norfolk County, 1.55 mi ESE of Medfield to 1.63 mi ESE of Medfield
Measured
61 kt (70 mph) estimated gust
Property damage
$18,000
Reported by
Broadcast Media
Coordinates
42.172, -71.272

In Walpole, multiple trees were down, snapped, or uprooted from Mill Brook Avenue to Pine Hill Drive. Four trees were downed onto houses.

Thunderstorm Wind, Norfolk

When
October 7, 5:05 PM EST
Where
Norfolk County, South Braintree
Measured
56 kt (64 mph) measured gust
Property damage
$1,000
Reported by
Public
Coordinates
42.200, -71.000

In Braintree at 605 PM EDT, a resident reported a 64 mph wind gust on their home anemometer. Damage in the immediate area was mostly downed tree limbs.

Thunderstorm Wind, Plymouth

When
October 7, 5:12 PM EST
Where
Plymouth County, 0.86 mi NW of Hingham
Measured
56 kt (64 mph) measured gust
Reported by
Amateur Radio
Coordinates
42.240, -70.890

In Hingham at 612 PM EDT, an amateur radio operator reported a wind gust to 65 mph.

Thunderstorm Wind, Middlesex

When
October 7, 5:15 PM EST
Where
Middlesex County, 0.58 mi NNW of North Sommerville
Measured
56 kt (64 mph) estimated gust
Property damage
$500
Reported by
NWS Employee
Coordinates
42.388, -71.124

In Cambridge, a tree was down on Cambridge Terrace.

Thunderstorm Wind, Norfolk

When
October 7, 5:19 PM EST
Where
Norfolk County, 0.14 mi NW of Norfolk Downs to 0.48 mi S of Wollaston
Measured
55 kt (63 mph) estimated gust
Property damage
$1,000
Reported by
Trained Spotter
Coordinates
42.281, -71.032

In Quincy, the top half of a tree was down on Marion Street. A 10-inch diameter branch was down on Prospect Street.

Thunderstorm Wind, Norfolk

When
October 7, 5:31 PM EST
Where
Norfolk County, 0.99 mi SSW of Foxborough to 1.28 mi W of Foxvale
Measured
56 kt (64 mph) estimated gust
Property damage
$3,000
Reported by
Amateur Radio
Coordinates
42.056, -71.254

In Foxboro, multiple trees were down on South Street between Foxboro High School and the Taylor School.

Thunderstorm Wind, Bristol

When
October 7, 5:32 PM EST
Where
Bristol County, 1 mi WNW of Prattville
Measured
55 kt (63 mph) estimated gust
Property damage
$800
Reported by
Amateur Radio
Coordinates
41.935, -71.098

In Taunton, a tree was down on wires on Redwood Drive, with the wires smoking.

Thunderstorm Wind, Plymouth

When
October 7, 5:33 PM EST
Where
Plymouth County, 1.03 mi E of East Carver
Measured
52 kt (60 mph) measured gust
Reported by
ASOS
Coordinates
41.920, -70.730

In Plymouth at 633 PM EDT, the ASOS at the Plymouth Airport (KPYM) recorded a wind gust to 60 mph.

Thunderstorm Wind, Barnstable

When
October 7, 5:45 PM EST
Where
Barnstable County, 0.68 mi NW of Provincetown
Measured
55 kt (63 mph) measured gust
Reported by
Unknown
Coordinates
42.056, -70.190

In Provincetown at 645 PM EDT, the office received a report of a wind gust to 63 mph, but the source was unable to be identified.

Thunderstorm Wind, Bristol

When
October 7, 5:52 PM EST
Where
Bristol County, 0.32 mi N of West Is
Measured
52 kt (60 mph) measured gust
Reported by
Amateur Radio
Coordinates
41.605, -70.831

In the West Island portion of Fairhaven, an amateur radio operator recorded a wind gust to 60 mph.

Thunderstorm Wind, Barnstable

When
October 7, 6:13 PM EST
Where
Barnstable County, 1.24 mi NW of Dennis
Measured
56 kt (64 mph) measured gust
Reported by
Mesonet
Coordinates
41.740, -70.220

In Dennis at 713 PM EDT, a mesonet station recorded a wind gust to 64 mph.

Thunderstorm Wind, Nantucket

When
October 7, 6:41 PM EST
Where
Nantucket County, (Ack)nantucket Mem A
Measured
52 kt (60 mph) measured gust
Reported by
ASOS
Coordinates
41.250, -70.070

In Nantucket at 741 PM EDT, the ASOS at the Nantucket Airport (KACK) recorded a wind gust to 60 mph.

What these are

Strong Wind
Non-thunderstorm winds below high wind criteria that nonetheless caused damage or casualties.
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.
Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
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.

The same day elsewhere

More

Every storm in Massachusetts in 2020Every state in 2020This day in weather historyThe tornado archive for Massachusetts, 2020Warnings in Massachusetts, October 2020

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 2026-10-01. Each event’s entry at NCEI: 918247, 918224, 918225, 918228, 918229, 918232, 918233, 918234, 918235, 918236, 918237, 918238, 918239, 918240, 918256, 918241, 918244, 918222, 918258, 918259, 918245, 918246, 918261, 918262, 918274, 918279, 918294, 918300, 918415, 918302, 918304, 918306, 918308, 918310, 918311, 918312, 918313, 918315, 918378, 918091, and more.