Tornadoes · United States · Pennsylvania · 1996

F2 tornado, Punxsutawney to Loretto, Pennsylvania, July 19, 1996

From Punxsutawney to Loretto, this F2 tornado ran 27.4 miles across Jefferson, Indiana, Clearfield and Cambria counties on July 19, 1996, touching down at 10:45 AM EDT and reaching 200 yards wide. It killed nobody and injured 6, and did $200,000 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 mph

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

  3. F2113 to 157 mphthis tornado

    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
F2
Date
July 19, 1996
Touchdown
10:45 AM EDT (14:45 UTC)
Path length
27.4 miles (44.1 km)
Path width
200 yards (183 m)
Deaths
0
Injuries
6
Property damage
$200,000
Counties
Jefferson, Indiana, Clearfield and Cambria counties
Touchdown point
40.930, -78.950
Lift-off point
40.650, -78.470
Record number
1156

What the Weather Service recorded

A tornado touched down in Jefferson County and traveled southeast into northeast Indiana County, the tornado continued into the State Game Lands and exited Indiana County 4 miles north-north east of Glen Campbell and then entered Clearfield County. The tornado's path was 200 feet wide at its greatest width in Indiana County.Just some tree damage occurred in Jefferson County. The tornado strengthened and caused greater damage in Indiana County. Just east of Rossiter, the tornado tore the roof off of a barn. A child, playing outside, sought shelter in the barn. The roof lifted off and three of the four walls collapsed. The child was not injured. A horse that was inside the barn was sucked out and carried approximately 75 feet in the air into a field. The tornado traveled then traveled up a hill and significantly damaged one mobile home and destroyed a second. The second mobile home was carried at least 75 yards across a road and smashed against a row of trees. Three people were inside the mobile home and were injured, one critically. The tornado at this time was at it's strongest, at the upper end of F2. A nearby wood frame house was destroyed and dense areas of trees were felled or snapped. About a dozen homes sustained damage along the path, 5 were damaged extensively. Thirty pound cinder blocks from a garage were thrown approximately 300 yards up a nearby hill where a stronger suction vortex was noted. The tornado tracked into the State Game Lands and a 50 yard path of downed and twisted 100 to 150 foot trees was noted into the densely forested region.

An F1 to weak F2 tornado touched down in Clearfield County near New Washington around 10:15 a.m. EST. The tornado moved southeast approximately 19 miles along a curved path crossing Five Points into Cambria County across Glendale Lake before ending 2 miles east of Frugality. This storm damaged several mobile homes and farms in Five Points, picked a boat out of the water on Glendale Lake and felled many trees along its path. A herringbone tree pattern was apparent along with suction vortex damage to crops.

An F2 tornado touched down around 11:10 a.m. EST 2 miles east of Colver and tracked 6 miles southeast before ending 1 mile west of Loretto. The path width was 100 yards. Two homes and a barn were destroyed by this storm. Several roofs and a second barn were also damaged. A central suction vortex was visible in crop damage.

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
07:22 UTC10:30 UTCFlash Flood WarningPBZ
09:08 UTC10:30 UTCSevere Thunderstorm WarningPBZ
09:08 UTC10:30 UTCFlash Flood WarningPBZ
10:04 UTC14:00 UTCFlash Flood WarningPBZ
13:59 UTC20:00 UTCFlash Flood WarningPBZ
19:53 UTC02:00 UTCFlash Flood WarningPBZ
01:59 UTC14:00 UTCFlash Flood WarningPBZ

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 06:17 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.

Pittsburgh, PA (KPIT), 12:00Z

2.8 hours before the tornado, 125 km from the path. July 19, 1996.

Skew-T log-pSkew-T log-p diagram, Pittsburgh, PA at 12:00Z on 1996-07-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 1573 joules per kilogram, CIN -15, lifted condensation level 639 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, Pittsburgh, PA at 12:00Z on 1996-07-19The 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 259 square meters per square second, 0 to 6 km bulk shear 41 knots.19395878Sfc1 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
1573 J/kg
Mixed-layer CIN
-15 J/kg
Surface CAPE
1350 J/kg
Mixed-layer LCL
639 m above ground
0-6 km bulk shear
41 kt
0-1 km bulk shear
39 kt
0-1 km storm-relative helicity
259 m²/s²
0-3 km storm-relative helicity
257 m²/s²
Significant tornado parameter
2.1
Supercell composite
10.5
0-3 km lapse rate
5.1 K/km

Open this sounding in Storm Lab

Pittsburgh, PA (KPIT), 00:00Z

9.2 hours after it, 125 km from the path. July 20, 1996.

Skew-T log-pSkew-T log-p diagram, Pittsburgh, PA at 00:00Z on 1996-07-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 1 joules per kilogram, CIN -10, lifted condensation level 1047 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, Pittsburgh, PA at 00:00Z on 1996-07-20The 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 42 knots.19395878Sfc1 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
1 J/kg
Mixed-layer CIN
-10 J/kg
Surface CAPE
54 J/kg
Mixed-layer LCL
1047 m above ground
0-6 km bulk shear
42 kt
0-1 km bulk shear
17 kt
0-1 km storm-relative helicity
44 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
4.2 K/km

Open this sounding in Storm Lab

The surface observations

Du Bois (Awos) (DUJ), 46 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
13:16 UTC66.262.6180° 8 kt151006.8
13:36 UTC69.862.6190° 7 kt161006.4
13:56 UTC6862.6190° 8 kt1006.1
14:16 UTC6862.6190° 7 kt1005.4
14:56 UTC69.864.4200° 6 kt1005.1
15:15 UTC69.866.2230° 9 kt1005.1
15:36 UTC73.466.2270° 14 kt201004.4
15:55 UTC75.266.2300° 16 kt281005.1
16:15 UTC73.462.6290° 18 kt321005.4
16:35 UTC75.260.8310° 20 kt331005.4

From the Iowa Environmental Mesonet's archive of airport observations.

This ground now

The live radar over the trackEvery 1996 tornado in PennsylvaniaEvery tornado in Pennsylvania since 1950Warnings in force in Pennsylvania nowThe forecast where you are

The other tornadoes of July 19, 1996

19 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
July 1910:20 AM EDTF2Clarion, PA10.0100$50,000
July 1912:10 PM EDTF1Blair, PA1.5880
July 1912:10 PM EDTF2Cambria, PA6.0100
July 191:30 PM EDTF0Bedford, PA5.050
July 192:00 PM EDTF0Fulton, PA2.050
July 192:30 PM EDTF1Franklin, PA3.050
July 192:35 PM EDTF1Adams, PA1.0150
July 193:02 PM EDTF0Washington, MD2.075$10,000
July 193:12 PM EDTF2Washington, MD2.0125$400,000
July 192:20 PM CDTF1Frederick, MD to VA6.2200$130,000
July 193:25 PM EDTF1Preston, WV0.250$10,000
July 193:36 PM EDTF1Montgomery, MD0.5150
July 193:42 PM EDTF3Carroll, MD2.23503$5.0 million
July 192:48 PM CDTF0Montgomery, MD to VA2.050$10,000
July 193:55 PM EDTF1Baltimore, MD1.250$70,000
July 194:30 PM EDTF0City of Baltimore, MD0.125
July 193:04 PM MDTF0Sherman, KS0.210
July 196:00 PM EDTF1Russell, VA3.650$200,000
July 197:40 PM CDTF0Franklin, MO0.150

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.