Tornadoes · United States · Massachusetts · 2001

F0 tornado, Bellingham, Massachusetts, June 30, 2001

This F0 tornado ran 0.1 miles across Norfolk County on June 30, 2001, touching down at 7:25 PM EDT and reaching 80 yards wide. It killed nobody.

The rating scale

Tracks are drawn in the color of the rating. The Fujita scale rates the damage rather than measuring the wind: the speeds are what that damage is taken to imply.

  1. F040 to 72 mphthis tornado

    Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.

  2. F173 to 112 mph

    Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.

  3. F2113 to 157 mph

    Considerable damage. Roofs torn off well-built houses, frame homes shifted on their foundations, mobile homes destroyed, large trees snapped or uprooted, cars lifted off the ground.

  4. F3158 to 206 mph

    Severe damage. Whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, trees debarked, heavy cars lifted and thrown.

  5. F4207 to 260 mph

    Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.

  6. F5261 to 318 mph

    Incredible damage. Strong frame houses swept off their foundations, car-sized missiles thrown more than 100 meters, steel-reinforced concrete badly damaged, high-rise buildings deformed.

  7. Unrated

    The survey recorded a tornado but could not put a number on it, most often because it crossed open country and damaged nothing a rating can be read from.

The record

Rating
F0
Date
June 30, 2001
Touchdown
7:25 PM EDT (23:25 UTC)
Path length
0.1 miles (0.2 km)
Path width
80 yards (73 m)
Deaths
0
Injuries
0
County
Norfolk County
Touchdown point
42.080, -71.470
Lift-off point
42.080, -71.470
Record number
190

What the Weather Service recorded

The most widespread severe weather event of the season struck most of the Bay State, with countless reports of downed trees, branches, and large hail from the east slopes of the Berkshires into metro Boston and the North Shore.The storms began in Franklin, Hampshire, and Hampden Counties around mid afternoon, and downed trees in Turners Falls, Worthington, and Chester. Dime to nickel sized hail was also reported. Severe weather reports became more numerous by late afternoon as the storms reached central and northeast Massachusetts. There many reports of large trees down from Littleton, Wilmington, Southborough, Shrewsbury and Sterling, where a spotter recorded a gust to 62 mph. In Essex County, severe thunderstorms downed trees and dropped dime sized hail in Lynnfield, Peabody, Beverly, and Marblehead. More severe thunderstorms erupted in Worcester County during the evening, dropping quarter sized hail in Mendon. These storms tracked into southern Middlesex County near Holliston, where large limbs were downed, then reached Norfolk County where more considerable storm damage occurred. A microburst downed many large trees and wires in Bellingham, Millis, and Medway. A survey of the debris and an eyewitness account also confirmed that a small F0 tornado touched down in Bellingham around 725 pm EDT. The tornado was estimated to have a path length of 150 yards and a width of 80 yards. Wind speeds were estimated near 70 mph. There were no injuries. Spotters reported hail as large as a half dollar prior to the wind damage. As the storms progressed across Norfolk County, trees and power lines were downed in Sharon, Walpole, and Norwood. Another severe thunderstorm later in the evening downed trees onto a road in Walpole and another on a house.The storms also contained frequent cloud-to-ground lightning. Tens of thousands were left without power. In Auburn, lightning caused two house fires when a nearby transformer was struck. In Whitman, a house fire started by a lightning strike on the second floor. Police and fire communications were temporarily disrupted when lightning struck an antenna in Norwood.

Brief F0 touchdown

From NOAA NCEI's Storm Events Database, the narrative the local forecast office wrote for Storm Data.

The warnings

No tornado warning for this county appears in the archive as in force at the moment the tornado touched down.

Issued (UTC)ExpiredProductOffice
22:42 UTC23:30 UTCSevere Thunderstorm WarningBOX
23:28 UTC00:15 UTCSevere Thunderstorm WarningBOX
01:00 UTC01:45 UTCSevere Thunderstorm WarningBOX

Every warning and watch covering the touchdown point that day, from the Iowa Environmental Mesonet's archive of National Weather Service products. Lead time is measured from the issue of the warning in force to the touchdown time in the database, both of which were recorded to the minute by different people.

The forecast that day

The Storm Prediction Center had this point in a General Thunderstorms Risk. The outlook in force was issued at 20:07 UTC.

SPC's Day 1 convective outlook as it stood when the tornado began, read at the touchdown point. The same archive is on the radar archive.

The air that afternoon

The radiosonde launches on either side of the tornado, from the nearest station that was launching then, drawn and analyzed the way Storm Lab does: the same diagram, the same parcel and shear definitions SPC's mesoanalysis uses.

Chatham, MA (KCHH), 12:00Z

11.4 hours before the tornado, 132 km from the path. June 30, 2001.

Skew-T log-pSkew-T log-p diagram, Chatham, MA at 12:00Z on 2001-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 428 joules per kilogram, CIN -106, lifted condensation level 914 meters above ground. Wind barbs in knots down the right edge.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed. The warm shading is its CAPE, the cool shading the inhibition it has to break through.
HodographHodograph, Chatham, MA at 12:00Z on 2001-06-30The wind through the lowest 10 kilometers as a curve, rings every 10 meters per second labeled in knots. Zero to 1 km storm-relative helicity 126 square meters per square second, 0 to 6 km bulk shear 17 knots.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km. RM and LM are the right and left moving storms Bunkers' method gives; the shaded area is the 0 to 1 km storm-relative helicity.
Mixed-layer CAPE
428 J/kg
Mixed-layer CIN
-106 J/kg
Surface CAPE
97 J/kg
Mixed-layer LCL
914 m above ground
0-6 km bulk shear
17 kt
0-1 km bulk shear
16 kt
0-1 km storm-relative helicity
126 m²/s²
0-3 km storm-relative helicity
129 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
4.4 K/km

Open this sounding in Storm Lab

Chatham, MA (KCHH), 00:00Z

0.6 hours after it, 132 km from the path. July 1, 2001.

Skew-T log-pSkew-T log-p diagram, Chatham, MA at 00:00Z on 2001-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 676 joules per kilogram, CIN -146, lifted condensation level 1230 meters above ground. Wind barbs in knots down the right edge.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed. The warm shading is its CAPE, the cool shading the inhibition it has to break through.
HodographHodograph, Chatham, MA at 00:00Z on 2001-07-01The wind through the lowest 10 kilometers as a curve, rings every 10 meters per second labeled in knots. Zero to 1 km storm-relative helicity 53 square meters per square second, 0 to 6 km bulk shear 18 knots.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km. RM and LM are the right and left moving storms Bunkers' method gives; the shaded area is the 0 to 1 km storm-relative helicity.
Mixed-layer CAPE
676 J/kg
Mixed-layer CIN
-146 J/kg
Surface CAPE
57 J/kg
Mixed-layer LCL
1230 m above ground
0-6 km bulk shear
18 kt
0-1 km bulk shear
11 kt
0-1 km storm-relative helicity
53 m²/s²
0-3 km storm-relative helicity
70 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
4.5 K/km

Open this sounding in Storm Lab

The radar

The Boston radar (KBOX), 31 km away, was scanning. The volume nearest the touchdown began at 23:25 UTC.

Open the radar archive at this moment, over the track

Reflectivity and velocity, decoded from the Level II archive in the browser. Volumes take a few seconds to open the first time.

This ground now

The live radar over the trackEvery 2001 tornado in MassachusettsEvery tornado in Massachusetts since 1950Warnings in force in Massachusetts nowThe forecast where you are

The other tornadoes of June 30, 2001

2 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
June 301:30 AM EDTF0Suffolk, NY0.150
June 301:35 AM EDTF0Suffolk, NY0.140

What this means

Ratings are the survey's, read off the damage rather than measured; the rating scale is above. Tornado counts rise through the record as reporting improved, so a year in the 1950s is not comparable with one today except for the strongest tornadoes, which were always noticed.

Sources

NOAA Storm Prediction Center tornado database, 1950-2025, the official record kept by NOAA's Storm Prediction Center.