Tornadoes · United States · Pennsylvania · 2014

EF0 tornado, Harveyville, Pennsylvania, July 8, 2014

This EF0 tornado ran 0.9 miles across Luzerne County on July 8, 2014, touching down at 7:00 PM EDT and reaching 50 yards wide. It killed nobody, and did $5,000 of property damage.

The rating scale

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

  1. EF065 to 85 mphthis tornado

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

  2. EF186 to 110 mph

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

  3. EF2111 to 135 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. EF3136 to 165 mph

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

  5. EF4166 to 200 mph

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

  6. EF5over 200 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
EF0
Date
July 8, 2014
Touchdown
7:00 PM EDT (23:00 UTC)
Path length
0.9 miles (1.4 km)
Path width
50 yards (46 m)
Deaths
0
Injuries
0
Property damage
$5,000
County
Luzerne County
Touchdown point
41.230, -76.230
Lift-off point
41.230, -76.230
Record number
1407081700-01

What the Weather Service recorded

A strong upper level system moving across the region led to the development of numerous severe thunderstorms across northeast Pennsylvania during the afternoon and evening hours of July 8th. With a tremendous favorable atmospheric wind pattern present, severe thunderstorms resulted in widespread wind damage along with several tornadoes.

An EF0 tornado with maximum wind speeds of 70 MPH was confirmed near this location. The tornado touched down in a rural area along State Route 4041 in Fairmount Township. The tornado destroyed a storage shed, a nearby garden and numerous trees along this road before moving through a wooded area and striking a dairy farm on Ridge Road. A roof was torn off of a barn and a grain silo was shifted off its foundation. The tornado crossed over corn and hay fields before lifting above a narrow valley.

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.

The county was under a severe thunderstorm watch, issued at 17:07 UTC and running to 00:00 UTC.

Issued (UTC)ExpiredProductOffice
17:07 UTC00:00 UTCSevere Thunderstorm WatchBGM
22:45 UTC23:45 UTCSevere Thunderstorm WarningBGM
23:40 UTC00:24 UTCSevere Thunderstorm WarningBGM

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, with a 0.02 chance of a tornado within 25 miles. The outlook in force was issued at 19:36 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.

Phillips Aaf/Abe, MD (KAPG), 12:00Z

11.0 hours before the tornado, 196 km from the path. July 8, 2014.

Skew-T log-pSkew-T log-p diagram, Phillips Aaf/Abe, MD at 12:00Z on 2014-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 132 joules per kilogram, CIN -176, lifted condensation level 1646 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, Phillips Aaf/Abe, MD at 12:00Z on 2014-07-08The 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 77 square meters per square second, 0 to 6 km bulk shear 26 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
132 J/kg
Mixed-layer CIN
-176 J/kg
Surface CAPE
604 J/kg
Mixed-layer LCL
1646 m above ground
0-6 km bulk shear
26 kt
0-1 km bulk shear
13 kt
0-1 km storm-relative helicity
77 m²/s²
0-3 km storm-relative helicity
123 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2
0-3 km lapse rate
5.8 K/km

Open this sounding in Storm Lab

The radar

The Binghamton radar (KBGM), 110 km away, was scanning. The volume nearest the touchdown began at 23:00 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.

What was reported nearby

Local storm reports within 60 km of the path, in the three hours either side.

Time (UTC)ReportWhereCountyRemark
22:00 UTCTSTM WND DMGLincoln FallsSullivan, PATREES DOWN AND BLOCKING ROADS IN FOX AND ELKLAND TWPS.
22:02 UTCTSTM WND DMGMillviewSullivan, PATREES AND WIRES DOWN. A PORTION OF ROUTE 87 IS CLOSED.
22:15 UTCTORNADO3 Nw DushoreSullivan, PAEF2 TORNADO WITH MAX WINDS 120 MPH...PATH WIDTH 400 YDS AND PATH LENGTH OF JUST OVER 2 MILES BEFORE ENTERING BRADFORD COUNTY. NUMEROUS TREES KNOCKED DOWN WITH BARN ROOF DEBRIS THROWN OVER 100 YDS. A TRAILER WAS THROWN 30
22:19 UTCTSTM WND DMG3 Wnw DushoreSullivan, PATREES DOWN AND STRUCTURES DAMAGED.
22:20 UTCTORNADONew AlbanyBradford, PAEF1 TORNADO WITH MAXIMUM WIND SPEEDS OF 100 MPH...A PATH WIDTH OF 500 YARDS AND A PATH LENGTH OF 4.5 MILES. NUMEROUS TREES KNOCKED DOWN WITH A BARN COLLAPSE AND A TRAILER BLOWN OFF ITS FOUNDATION AND TURNED 90 DEGREES ON
22:45 UTCTSTM WND DMGMeshoppenWyoming, PAMANY TREES AND WIRES DOWN. ROADS BLOCKED.
22:50 UTCTSTM WND DMGAuburn CenterSusquehanna, PABARN AND GARAGE DESTROYED... MANY DOWNED TREES AND POWER LINES. TIME ESTIMATED FROM RADAR.
22:56 UTCTSTM WND DMGAsburyColumbia, PATREES DOWN ACROSS ROADS.
23:00 UTCTSTM WND DMGHuntington MillsLuzerne, PAMANY TREES DOWN... POWER OUT. RADAR ESTIMATED TIME. VIA WNEP-TV FACEBOOK.
23:00 UTCTORNADO3 N Huntington MillsLuzerne, PAAN EF-0 TORNADO WITH MAXIMUM WIND SPEEDS OF 70 MPH WAS CONFIRMED NEAR THIS LOCATION. THE TORNADO TOUCHED DOWN IN A RURAL AREA ALONG STATE ROUTE 4041 IN FAIRMOUNT TOWNSHIP. THE TORNADO DESTROYED A STORAGE SHED...GARDEN AN
23:15 UTCTSTM WND DMGFallsWyoming, PAMANY TREES DOWN BLOCKING ROADS.
23:18 UTCTSTM WND DMGDallasLuzerne, PAMANY TREES DOWN... SOME ON HOUSES AND CARS. POSSIBLE ENTRAPMENTS. SEVERAL ROADS BLOCKED. ALSO IN LEHMAN TOWNSHIP.
23:30 UTCDOWNBURST 702 Sw Upper ExeterLuzerne, PADOWNBURST WINDS AFFECTED APPROXIMATELY A 2 MILE LONG...AND 1 MILE WIDE PATH OVER PORTIONS OF EXETER AND FRANKLIN TOWNSHIPS. SCATTERED TREE DAMAGE OCCURRED AT SEVERAL RESIDENCES...A CEMETARY AND DENSELY WOODED AREAS. ONE
23:30 UTCTSTM WND DMG2 Sw Upper ExeterLuzerne, PADOWNBURST WINDS AFFECTED APPROXIMATELY A 2 MILE LONG...AND 1 MILE WIDE PATH OVER PORTIONS OF EXETER AND FRANKLIN TOWNSHIPS. SCATTERED TREE DAMAGE OCCURRED AT SEVERAL RESIDENCES...A CEMETARY AND DENSELY WOODED AREAS. ON L
23:35 UTCTSTM WND GST 65MoosicLackawanna, PAPEAK GUST FROM WNEP-TV STUDIO. RADAR ESTIMATED TIME.
23:37 UTCTSTM WND DMGScrantonLackawanna, PATREE ON WIRES... LEANING ON HOUSE. OTHER TREES AND WIRES DOWN IN AREA.
00:20 UTCTSTM WND DMGMantzvilleSchuylkill, PATREES AND WIRES DOWN.
00:45 UTCTSTM WND DMGMeshoppenWyoming, PAMANY TREES AND WIRES DOWN. ROADS BLOCKED.
01:15 UTCTSTM WND DMGFallsWyoming, PAMANY TREES DOWN BLOCKING ROADS.

From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.

This ground now

The live radar over the trackEvery 2014 tornado in PennsylvaniaEvery tornado in Pennsylvania since 1950Warnings in force in Pennsylvania nowThe forecast where you are

The other tornadoes of July 8, 2014

13 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
July 81:33 PM EDTEF1Medina, OH8.3200$78,000
July 81:43 PM EDTEF1Medina, OH1.6200$20,000
July 82:15 PM EDTEF1Mahoning, OH5.4200$225,000
July 82:48 PM EDTEF1Mercer, PA2.5150$75,000
July 83:25 PM EDTEF1Monongalia, WV2.050$50,000
July 83:55 PM EDTEF1Taylor, WV4.4150$50,000
July 86:15 PM EDTEF2Sullivan, PA6.7500$105,000
July 86:33 PM EDTEF1Oneida, NY1.0600$30,000
July 86:48 PM EDTEF1Lewis, NY12.3300$250,000
July 87:02 PM EDTEF2Madison, NY2.52354$600,000
July 87:05 PM EDTEF1Susquehanna, PA1.4150$100,000
July 87:25 PM EDTEF1Oneida, NY1.365$110,000
July 88:40 PM EDTEF0Warren, NY1.1100

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.