Tornadoes · United States · Massachusetts · 1997

F1 tornado, Florida, Massachusetts, July 3, 1997

This F1 tornado ran 1.3 miles across Berkshire County on July 3, 1997, touching down at 5:36 PM EDT and reaching 73 yards wide. It killed nobody, and did $10,000 of property damage.

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 mph

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

  2. F173 to 112 mphthis tornado

    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
F1
Date
July 3, 1997
Touchdown
5:36 PM EDT (21:36 UTC)
Path length
1.3 miles (2.1 km)
Path width
73 yards (67 m)
Deaths
0
Injuries
0
Property damage
$10,000
County
Berkshire County
Touchdown point
42.670, -73.050
Lift-off point
42.670, -73.020
Record number
904

What the Weather Service recorded

On July 3, a fast moving cold front crossed Berkshire County during the afternoon and evening hours. The front initiated four tornadoes. The Richmond F1 tornado is a continuation of the F2 tornado which occurred in Columbia County. This tornado downed trees and produced minor damage to one house as it diminished in the Richmond area. The tornado in the Town of Florida began at the intersection of South County Road and Savoy Road. The F1 tornado tracked eastward and terminated just south of Florida near state route 2. The tornado removed all the shingles off the roof of a residence and a prefabricated steeple was blown off a church. Many trees were also downed along its path. The F2 tornado which began in the Monterey area started at the intersection of Wellman Road and New Marlborough Road. The tornado tracked northeast across state route 23 and Lake Garfield to Hayes Pond where it merged with the second tornado. At the north end of Hayes Pond the tornado diminished. This tornado downed hundreds of trees, damaged ten to twenty homes and destroyed two vehicles. The damage was most extensive along the north shore of Lake Garfield at Elephant Rock Road, Hopi Road, Mt. Hunger Road and Norwalk Acres Road. The second F2 tornado began near the intersection of Tyringham Road and West Center Road. It then tracked across Hayes Pond where it momentarily merged with the other tornado. The tornado then proceeded northeast where it ended near the intersection of state route 8 and Merrit Road. This tornado produced extensive tree damage, destroyed one vehicle and damaged fifteen to twenty homes. The most extensive damage occurred along West Center Road near Hayes Pond. Baseball size hail was also observed at Hayes Pond with this storm. Two people were struck by lightning at the Great Barrington Fairgrouds. They were both hospitalized and released.

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

The warnings

21 minutes of warning. NWS ALY issued a tornado warning for this county at 21:15 UTC, 21 minutes before the tornado touched down, in force until 22:15 UTC.

Issued (UTC)ExpiredProductOffice
21:05 UTC22:15 UTCSevere Thunderstorm WarningALY
21:15 UTC22:15 UTCTornado WarningALY
22:14 UTC23:15 UTCTornado WarningALY
23:08 UTC00:15 UTCSevere Thunderstorm WarningALY
23:16 UTC00:15 UTCTornado WarningALY
00:17 UTC01:00 UTCTornado WarningALY

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 Slight Risk. The outlook in force was issued at 10:25 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.

Albany, NY (KALY), 12:00Z

9.6 hours before the tornado, 65 km from the path. July 3, 1997.

Skew-T log-pSkew-T log-p diagram, Albany, NY at 12:00Z on 1997-07-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 901 joules per kilogram, CIN -44, lifted condensation level 598 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, Albany, NY at 12:00Z on 1997-07-03The 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 94 square meters per square second, 0 to 6 km bulk shear 32 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
901 J/kg
Mixed-layer CIN
-44 J/kg
Surface CAPE
897 J/kg
Mixed-layer LCL
598 m above ground
0-6 km bulk shear
32 kt
0-1 km bulk shear
22 kt
0-1 km storm-relative helicity
94 m²/s²
0-3 km storm-relative helicity
101 m²/s²
Significant tornado parameter
0.3
Supercell composite
1.4
0-3 km lapse rate
5.6 K/km

Open this sounding in Storm Lab

Albany, NY (KALY), 00:00Z

2.4 hours after it, 65 km from the path. July 4, 1997.

Skew-T log-pSkew-T log-p diagram, Albany, NY at 00:00Z on 1997-07-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 373 joules per kilogram, CIN -29, lifted condensation level 896 meters above ground. Wind barbs in knots down the right edge.LCLLFCEL10008507005003002001001 km2 km3 km6 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, Albany, NY at 00:00Z on 1997-07-04The 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 44 square meters per square second, 0 to 6 km bulk shear 60 knots.19395878Sfc1 km3 km6 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
373 J/kg
Mixed-layer CIN
-29 J/kg
Surface CAPE
390 J/kg
Mixed-layer LCL
896 m above ground
0-6 km bulk shear
60 kt
0-1 km bulk shear
34 kt
0-1 km storm-relative helicity
44 m²/s²
0-3 km storm-relative helicity
64 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.5
0-3 km lapse rate
5.9 K/km

Open this sounding in Storm Lab

This ground now

The live radar over the trackEvery 1997 tornado in MassachusettsEvery tornado in Massachusetts since 1950Warnings in force in Massachusetts nowThe forecast where you are

The other tornadoes of July 3, 1997

9 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
July 35:23 PM EDTF1Columbia, NY5.3100$60,000
July 35:58 PM EDTF1Franklin, MA4.5100$50,000
July 36:05 PM EDTF2Berkshire, MA4.5600$1.5 million
July 36:11 PM EDTF2Berkshire, MA3.7600$1.5 million
July 36:58 PM EDTF1Franklin, MA8.5100$50,000
July 37:13 PM EDTF1Cheshire, NH2.01001$500,000
July 37:17 PM EDTF1Columbia, NY1.2200$150,000
July 36:20 PM CDTF2Berkshire, NY to MA1.5100$600,000
July 37:55 PM EDTF2Hillsborough, NH2.0250$250,000

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.