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831 NOUS41 KPHI 031922 PNSPHI DEZ001>004-MDZ012-015-019-020-NJZ001-007>010-012>027-PAZ054-055- 060>062-070-071-101>106-040730- Public Information Statement National Weather Service Mount Holly NJ 322 PM EDT Fri Sep 3 2021 ...SEPTEMBER 1 2021 TORNADOES... The National Weather Service office in Mount Holly, NJ has conducted several storm surveys for damage from storms on Wednesday, September 1. Update...Due to additional information, upgraded the rating for the Oxford, PA tornado. More details on this tornado should be available this evening via this Public Information Statement. *Oxford, PA (Chester County): Confirmed EF-2 tornado with estimated peak winds up to 115 mph. The storm survey information will also be available on our website at http://www.weather.gov/phi .Harrisonville-Mullica Hill-Deptford, NJ Tornado... Rating: EF-3 Estimated Peak Wind: 150 mph Path Length /statute/: 12.6 miles Path Width /maximum/: 400 yards Fatalities: None. Injuries: 2 injuries Start Date: Sep 01 2021 Start Time: 610 PM EDT Start Location: 1 SE Harrisonville, NJ Start Lat/Lon: 39.6769/-75.2500 End Date: Sep 01 2021 End Time: 630 PM EDT End Location: 1 SE of Deptford, NJ End Lat/Lon: 39.82/-75.11 The tornado touched down near Harrisonville, NJ doing mostly damage to trees and limbs before strengthening and moving northeast. As it moved to the northeast, it crossed into the Cedar Grove area producing more significant damage to trees with many trees uprooted. The tornado moved into the Willow Oaks subdivision strengthening further and producing significant damage to trees, as well as serious structural damage to a number of homes. Several homes had exterior walls completely collapsed, a number of homes lost roofs and upper story walls, and one home had only a few interior walls remaining. Vehicles were tossed around and moved, and damage from flying debris was observed in several spots. The tornado continued to move to the northeast to Bridgeton Pike where multiple trees had trunks snapped and most of the barns and storage buildings at a large commercial farm were completely destroyed. The tornado also reached its maximum width at this location and was estimated to be around 400 yards wide. The tornado then continued northeast through the woods with multiple trees snapped before entering the subdivision at Salvatore Drive. Here the tornado's most significant damage was observed with one home completely destroyed with no interior or exterior walls standing. Other homes in the subdivision had exterior walls collapsed along with garage collapses and vehicles being tossed around by the tornadic winds. The consistency of the damage along the path of the tornado in this area was EF-3 in the middle of the circulation, with EF-2 along the edge of the circulation. In addition, the tree damage was not as extensive behind the completely destroyed house. Based on the consistency of the damage along Salvatore Drive, a rating of EF-3 (150 mph) was determined. The tornado continued to the northeast damaging trees and structures along its path before reaching a large commercial dairy farm where extensive damage occurred. Barns were destroyed and two large grain silos were toppled. The tornado then crossed Jefferson Road and crossed Eachus Road snapping multiple trees. Thereafter, the tornado moved into the Breakneck Road area producing complete deforestation with nearly 100 percent of the trees in a thickly wooded area snapped. The tornado path crossed Main St, just south of Chestnut Branch Park in Mantua Township snapping and uprooting a number of trees before reaching the Delaware Valley Florist commercial greenhouse mostly destroying the structure. The tornado damage path then continued to the northeast reaching Wenonah, snapping and uprooting a number of trees, a few homes lost roofs and one structure collapsed. Less severe tree damage persisted to the northeast along the tornado's path toward Deptford where the tornado lifted. The National Weather Service in Mount Holly would also like to thank local enforcement and emergency management for their assistance in the storm survey. .Fort Washington-Upper Dublin-Horsham, PA Tornado... Rating: EF-2 Estimated Peak Wind: 130 mph Path Length /statute/: 8.0 miles Path Width /maximum/: 400 yards Fatalities: 1 Injuries: At least a few minor Start Date: Sep 01 2021 Start Time: 5:35 PM EDT Start Location: Fort Washington / Montgomery / PA Start Lat/Lon: 40.107/-75.238 End Date: Sep 01 2021 End Time: 5:49 PM EDT End Location: Horsham / Montgomery / PA End Lat/Lon: 40.210/-75.172 A semi-discrete supercell thunderstorm began to exhibit rotation over Delaware County, PA around 5:15 PM on September 1. The rotation continued north-northeast into Montgomery County, and eventually strengthened enough to produce a tornado. Minor tree damage was first observed along Stenton Ave in Fort Washington in the area of the Philadelphia Cricket Club. A path of tree damage was observed heading northeast along Joshua Rd and through Fort Washington State Park. Some minor shingle and siding damage to houses was also seen. Damage became more severe after the tornado crossed the Pennsylvania Turnpike. At this time the tornado also moved into a more residential area. Damage was observed along Montgomery Ave, Spring Ave, and Prospect Ave and numerous crossing streets of those. This mainly consisted of numerous snapped and uprooted trees with minor to moderate roofing and siding damage to a number of homes. The worst damage was observed slightly farther northeast in the area of Stuart Creek in Upper Dublin. A number of homes suffered partial to near total loss of roofing with many damaged to the point of being uninhabitable. At least one home experienced partial collapse of exterior walls consistent with EF2 tornado damage. Nearly all trees were snapped or heavily damaged in this area as well. Damage continued along Route 309 to the area of Upper Dublin High School. The high school itself suffered roofing damage, and significant roofing loss occurred to an Upper Dublin Township building adjacent to the high school. A number of residences along Loch Alsh Ave and several surrounding streets were also damaged. A woman was killed when a tree fell on her home on Kenyon Dr, the only known tornado-related fatality from this tornado or any tornado during this regional outbreak. Further northeast, damage occurred on and around the Temple University Ambler Campus, again consisting of considerable tree damage and partial roofing loss on a number of homes and university buildings. The tornado then moved into Maple Glen, crossing a heavily developed area near Norristown Rd at Limerick Pike. Snapped trees and mostly minor roofing and siding damage to several commercial buildings was observed in this area. The tornado remained continuous but did begin to lose some intensity as it moved into Horsham Twp, traveling east of Limerick Pike. A number of trees were snapped along Babylon Rd. Near Horsham Rd, roofing damage occurred to a veterinary hospital, along with additional large trees snapped. Damage appeared to end not long after that point. The tornado crossed Horsham Rd, but little to no damage was observed in a couple of parks across the road, approaching the Bucks County line. The tornado is believed to have lifted in that area. The National Weather Service in Mount Holly would like to thank the Montgomery County Department of Public Safety and the Upper Dublin Township Police and Fire Departments for their assistance in this survey. .Doylestown-Buckingham Township, PA Tornado... Rating: EF-1 Estimated Peak Wind: 100 mph Path Length /statute/: 4.4 miles Path Width /maximum/: 300 yards Fatalities: 0 Injuries: 0 Start Date: Sep 01 2021 Start Time: 5:59 PM EDT Start Location: Doylestown / Bucks / PA Start Lat/Lon: 40.271/-75.112 End Date: Sep 01 2021 End Time: 6:06 PM EDT End Location: Buckingham Twp / Bucks / PA End Lat/Lon: 40.327/-75.077 The storm which produced a strong tornado in Montgomery County, PA, cycled and produced another tornado in Bucks County, PA. Damage began near in the area of Neshaminy Creek between Valley Rd and Pebble Hill Rd in Doylestown. The tornado tracked north- northeast from there, producing a consistent path of damage. Damage was mainly confined to trees and was fairly extensive at times, with much of the path length being heavily wooded. Numerous hardwood and softwood trees were snapped and uprooted along the path. Damage was strongly suggestive of tornadic winds, and a tornado debris signature was also evident on radar. The heaviest damage occurred near and along a stretch of Edison- Furlong Rd. Extensive tree damage occurred along that road and a number of its cross streets. Several utility poles were snapped in this area. Tree damage along nearby Swamp Rd was also significant. The tornado continued but began to lose intensity as it approached Route 202, with sporadic tree damage observed on Mill Rd. Gradual weakening continued and the tornado appeared to lift entirely in the area of Burnt House Hill Rd. The extent of tree damage suggested maximum winds of around 100 mph. No injuries were reported as a result of this tornado. .Upper Makefield Township, PA Tornado... Rating: EF-1 Estimated Peak Wind: 90 mph Path Length /statute/: 1.7 miles Path Width /maximum/: 250 yards Fatalities: 0 Injuries: 0 Start Date: Sep 01 2021 Start Time: 6:30 PM EDT Start Location: Upper Makefield Twp / Bucks / PA Start Lat/Lon: 40.298/-74.938 End Date: Sep 01 2021 End Time: 6:35 PM EDT End Location: Upper Makefield Twp / Bucks / PA End Lat/Lon: 40.316/-74.918 A tornado embedded within a squall line developed several miles southeast of the storm which produced a tornado in Buckingham Township. Tornadic damage was first observed in the vicinity of Stoneybrook Rd at Eagle Rd, near Jericho Creek. The tornado tracked northeastward from there. It passed over the Jericho National Golf Club, and sporadic tree damage mainly consisting of uproots and large limbs snapped was observed in a path throughout the golf course. It then moved over the adjacent Brownsburg Park, where additional tree damage was observed and several soccer goals were observed flipped in various directions. The tornado then began to approach the Delaware River. Some minor tree damage was observed along River Rd. However, the tornado appeared to lift just slightly before reaching the Delaware River, with no apparent damage on Pebbletown Rd just prior to the river. Throughout its path, the tree damage produced by this tornado was fairly sporadic, and it may have been discontinuous. Noticeable wind damage was also observed for at least a mile east of the tornado track, especially near its endpoint close to the Delaware River. This is believed to be straight line wind damage, which is corroborated by radar data, occurring around the rear flank downdraft region of the tornadic circulation. However, the exact length and width of the tornadic circulation is somewhat uncertain due to the surrounding areas of straight line wind damage. .Burlington, NJ to Bristol, PA Tornado... Rating: EF-1 Estimated Peak Wind: 90 mph Path Length /statute/: 2.8 miles Path Width /maximum/: 200 yards Fatalities: None Injuries: None Start Date: Sep 01 2021 Start Time: 6:59 PM EDT Start Location: 2 SW Burlington / Burlington / NJ Start Lat/Lon: 40.06/-74.89 End Date: Sep 01 2021 End Time: 7:04 PM EDT End Location: Bristol / Bucks / PA End Lat/Lon: 40.09/-74.86 After cycling from an earlier tornado near Mullica Hill, NJ, a supercell thunderstorm produced an additional tornado in Burlington Township, NJ near the township line with Edgewater Park, NJ. Some evidence of RFD winds was prevalent southward through the Capitol Hill neighborhood of Edgewater Park with one pine tree being uprooted and several small branches being brought down all the way south to Pennington Park in Delanco Township, NJ,but damage was too sparse to be noted as tornadic. As the tornado touched down, numerous hard and softwood trees were uprooted along Jennifer Lane in a neighborhood just off of Beverly Road in Burlington Township. A large branch was also brought down on a vehicle at the intersection of Jennifer Lane and Squire Way. Nearby, a pine tree was brought down, breaking a window to a residence further west on Jennifer Lane with a small Sycamore tree also being snapped at the base a few houses down the road. As the tornado crossed Shive Place and Handler Drive, several trees were snapped and large branches brought down. Soffit damage was also observed to a couple of homes nearby. Perhaps the most impressive damage was observed along Beverly Road near the intersection with Handler Drive where resident noted that nearly thirty trees were either uprooted or snapped. Observations seemed to agree with that statement with crews working to repair downed power lines as well. The tornado then proceeded towards the Delaware River as it took a slight turn towards the north. With only a steel and power plant lying beneath it-these two structurally sound facilities did not appear to sustain any visible damage despite a rather impressive viral Tweet with a video of the tornado passing across the Burlington-Bristol Bridge. Driving across the bridge for this very survey, no damage was noted given the structural integrity of the feature. As the tornado passed through a wooded floodplain along the banks of the Delaware River, no visible damage was noted either. The tornado then lifted just before reaching downtown Bristol, PA, with several trees being snapped along the Bristol Wharf. .West Windsor Twp, NJ Tornado... Rating: EF-0 Estimated Peak Wind: 75 mph Path Length /statute/: 2.73 miles Path Width /maximum/: 100 yards Fatalities: None Injuries: None Start Date: Sep 01 2021 Start Time: 7:32 PM EDT Start Location: 2.7 SE Princeton / Mercer / NJ Start Lat/Lon: 40.31/-74.67 End Date: Sep 01 2021 End Time: 7:35 PM EDT End Location: 1 E Princeton / Mercer / NJ End Lat/Lon: 40.34/-74.64 A tornado touched down along Emmons Drive along Route 1 in Princeton, NJ as a remnant supercell moved northward after producing the Mullica Hill and Burlington, NJ tornadoes earlier Wednesday afternoon as Ida's remnants moved through the region. Damage first occurred as several small branches were brought down along the Whole Foods and Wendy's parking lots along Route 1 in far eastern Princeton Township, with a continued path of minor branch damage extending northward along Farber Road, Meadow Drive, and Canal Pointe Boulevard adjacent to Route 1. Several medium-size trees were also uprooted with numerous small branches having been brought down along the western periphery of the Marketfair shopping parking lot. From there, the tornado continued northward with minor tree damage having occurred along Carnegie Center Boulevard as the tornado moved northward. Several small branches were also brought down in a residential area along Heritage Boulevard with one pine tree even having been snapped. An additional pine tree was also uprooted along Alexander Road near Glenview. The tornado then snapped several small hardwood trees, knocking down several utility poles and power lines along Washington Road. A tree was also uprooted along Lower Harrison Street along Carnegie Lake before the tornado lifted somewhere over the lake. && EF Scale: The Enhanced Fujita Scale classifies tornadoes into the following categories: EF0...Weak......65 to 85 mph EF1...Weak......86 to 110 mph EF2...Strong....111 to 135 mph EF3...Strong....136 to 165 mph EF4...Violent...166 to 200 mph EF5...Violent...>200 mph NOTE: The information in this statement is preliminary and subject to change pending final review of the event and publication in NWS Storm Data. $$ Gorse/Manning/Haines/SFJ/O'Brien/Davis