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Hurricane Ida tornado outbreak

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Hurricane Ida tornado outbreak
The remnants of Ida producing severe weather and flash flooding in the Northeastern United States on September 1, 2021
TypeTornado outbreak
DurationAugust 29–September 2, 2021
Highest winds
Tornadoes
confirmed		36
Max. rating1EF3 tornado
Duration of
tornado outbreak2		79 hours, 15 minutes
Fatalities1 death, 7 injuries
Damage>$13.098 million (2021 USD)[1]
Areas affectedSoutheastern United States and Northeastern United States

1Most severe tornado damage; see Enhanced Fujita scale
2Time from first tornado to last tornado

Hurricane Ida generated a tornado outbreak as it traversed the Southeastern, Mid-Atlantic, and Northeastern United States. Thirty-six confirmed tornadoes touched down from Mississippi to Massachusetts; one person was killed in Upper Dublin Township, Pennsylvania, and several people were injured in Alabama, New Jersey, and Pennsylvania. The most active and destructive part of the outbreak occurred during the afternoon of September 1, when several strong tornadoes struck Maryland, New Jersey, and Pennsylvania, including an EF3 tornado which impacted Mullica Hill, New Jersey. The same storm later dropped an EF1 tornado that prompted a tornado emergency for Burlington, New Jersey and Croydon, and Bristol, Pennsylvania, the first of its kind in the Northeast, as well as the first such alert associated with a tropical cyclone or its remnants.[2] This outbreak severely impacted New Jersey and the Philadelphia Metropolitan Area, a region which had been significantly impacted by strong tornadoes from another outbreak that occurred just over a month prior, as well as several weak tornadoes from the remnants of Tropical Storm Fred two weeks earlier. Overall, the 36 tornadoes killed one person and injured seven others.

Meteorological synopsis

[edit]
Map plotting the storm's track and intensity, according to the Saffir–Simpson scale
Map key
Saffir–Simpson scale
  Tropical depression (≤38 mph, ≤62 km/h)
  Tropical storm (39–73 mph, 63–118 km/h)
  Category 1 (74–95 mph, 119–153 km/h)
  Category 2 (96–110 mph, 154–177 km/h)
  Category 3 (111–129 mph, 178–208 km/h)
  Category 4 (130–156 mph, 209–251 km/h)
  Category 5 (≥157 mph, ≥252 km/h)
  Unknown
Storm type
triangle Extratropical cyclone, remnant low, tropical disturbance, or monsoon depression

At 16:55 UTC on August 29, Hurricane Ida made landfall near Port Fourchon, Louisiana, with sustained winds of 150 mph (240 km/h) and a central pressure of 930 mbar (27 inHg).[3] Strong low-level shear, daytime boundary heating, and weak inland buoyancy led to an increasing risk for tornadoes across the Southeastern United States. The Storm Prediction Center (SPC) issued a slight risk for severe weather for the Central Gulf Coast for three straight days between August 29-31.[4][5][6] Numerous weak tornadoes touched down in Mississippi, Louisiana, and Alabama during this time. One EF1 tornado caused considerable damage in Saraland, Alabama on August 30, injuring three people.[7] A small slight risk was also issued in the Mid-Atlantic for the Southern Delmarva Peninsula on August 31, where a confluence zone was expected to have an increasing westerly mid-level flow in response to Ida, although it was not the only influence in this area.[6] Two weak tornadoes occurred in Southwest Virginia that afternoon.[8]

As Ida became extratropical and moved into the Northeastern United States on September 1, a strengthening low-level jet (LLJ) along and south of a warm front coupled with a very moist atmosphere and sufficient surface heating led to a more substantial risk for tornadoes between Washington, D.C., and New York City and the SPC issued a tornado-driven enhanced risk for severe weather for this region. This included a 10% tornado risk with a 30% damaging wind risk added later on.[9] That afternoon, several supercells formed across the D.C. metropolitan area and quickly became tornadic as they moved northeast. An EF2 tornado struck Annapolis, Maryland, causing significant structural and tree damage throughout the city.[10] Another EF2 tornado caused severe damage in a residential neighborhood in Oxford, Pennsylvania.[11] Later, a large EF2 tornado struck Upper Dublin Township, Pennsylvania, severely damaging buildings, homes, and trees, killing one person and causing a few minor injuries.[11] An intense EF3 wedge tornado destroyed several homes and a dairy farm in Mullica Hill, New Jersey as well, injuring two people.[11] An EF1 tornado produced by the same storm prompted the issuance of the first ever tornado emergency the Northeast, as well as the first such alert associated with a tropical cyclone. A few other weak tornadoes also touched down later that evening and into September 2 before the remnants of Ida moved offshore, ending the outbreak.

Confirmed tornadoes

[edit]
Confirmed tornadoes by Enhanced Fujita rating
EFU EF0 EF1 EF2 EF3 EF4 EF5 Total
0 22 10 3 1 0 0 36

August 29 event

[edit]
List of confirmed tornadoes – Sunday, August 29, 2021[note 1]
EF# Location County / parish State Start coord. Time (UTC) Path length Max. width Summary
EF1 WSW of Pass Christian to SW of Diamondhead Harrison, Hancock MS 30°18′56″N 89°15′30″W / 30.3156°N 89.2582°W / 30.3156; -89.2582 (Pass Christian (August 29, EF1)) 11:23–11:28 3.8 mi (6.1 km) 150 yd (140 m) A waterspout moved onshore from the Gulf of Mexico damaging several homes, with one sustaining extensive roof damage. It continued to damage homes as it tracked northwest into the Bay of St. Louis. The tornado tracked near Diamondhead as it moved onshore from the bay. Shingles were removed from the roof of a nursing center as the tornado crossed I-10 before dissipating shortly thereafter. Trees were snapped or uprooted along the path as well.[12][13]
EF0 Gulfport Harrison MS 30°22′40″N 89°03′53″W / 30.3777°N 89.0646°W / 30.3777; -89.0646 (Gulfport (August 29, EF0)) 22:15–22:19 0.74 mi (1.19 km) 50 yd (46 m) Numerous trees and tree limbs were downed, including one large tree that was uprooted onto two houses. A house, a strip mall, and another building sustained roof damage as well.[14]
EF1 Eden Isle (1st tornado) St. Tammany LA 30°12′40″N 89°46′22″W / 30.2112°N 89.7729°W / 30.2112; -89.7729 (Eden Isle #1 (August 29, EF1)) 23:33–23:38 4.92 mi (7.92 km) 175 yd (160 m) Two buildings at a condominium complex had their roofs partially torn off. Numerous houses were damaged and trees were downed.[15]
EF0 SE to NW of Pearlington Hancock MS 30°12′22″N 89°30′27″W / 30.2061°N 89.5074°W / 30.2061; -89.5074 (Pearlington (August 29, EF0)) 23:59–00:09 10.55 mi (16.98 km) 75 yd (69 m) A waterspout moved onshore, blowing down road signs and posts. Trees and roofs of homes were damaged.[16]
EF0 Eden Isle (2nd tornado) St. Tammany LA 30°13′11″N 89°47′39″W / 30.2197°N 89.7942°W / 30.2197; -89.7942 (Eden Isle #2(August 29, EF0)) 01:56–01:57 0.88 mi (1.42 km) 100 yd (91 m) A brief tornado damage roofs and fences and uprooted trees.[17]
EF0 ESE of Waveland to Shoreline Park Hancock MS 30°15′59″N 89°23′11″W / 30.2664°N 89.3864°W / 30.2664; -89.3864 (Waveland 1 (August 29, EF0)) 03:11–03:14 3.34 mi (5.38 km) 200 yd (180 m) A waterspout moved onshore and caused minor damage to the roofs of several homes and an apartment complex. Several trees were also snapped or uprooted.[18]
EF0 NE of Waveland to NE of Shoreline Park Hancock MS 30°17′44″N 89°21′57″W / 30.2955°N 89.3658°W / 30.2955; -89.3658 (Waveland 2 (August 29, EF0)) 03:15–03:18 2.88 mi (4.63 km) 200 yd (180 m) A waterspout moved onshore, where the roofs of several homes sustained minor damage. Several trees were snapped or uprooted as well.[19]
EF0 Henderson Point Harrison MS 30°18′29″N 89°16′56″W / 30.3081°N 89.2822°W / 30.3081; -89.2822 (Henderson Point (August 29, EF0)) 03:37–03:38 0.51 mi (0.82 km) 75 yd (69 m) A waterspout formed over the Mississippi Sound and moved inland. Several homes and a detached garage were damaged, trees were snapped or uprooted, and power lines were snapped.[20]

August 30 event

[edit]
List of confirmed tornadoes – Monday, August 30, 2021[note 1]
EF# Location County / parish State Start coord. Time (UTC) Path length Max. width Summary
EF0 Biloxi (1st tornado) Harrison MS 30°23′50″N 88°56′00″W / 30.3973°N 88.9332°W / 30.3973; -88.9332 (Biloxi 1 (August 30, EF0)) 09:18–09:19 0.17 mi (0.27 km) 150 yd (140 m) A very brief tornado caused minor damage to several homes and several apartment buildings.[21]
EF0 Biloxi (2nd tornado) Harrison MS 30°23′48″N 88°52′44″W / 30.3966°N 88.8788°W / 30.3966; -88.8788 (Biloxi 2 (August 30, EF0)) 10:55–10:56 0.53 mi (0.85 km) 100 yd (91 m) A brief tornado inflicted minor damage to several homes and a small office complex. Large tree limbs were snapped.[22]
EF0 NW of Mississippi City Harrison MS 30°23′12″N 89°03′23″W / 30.3868°N 89.0565°W / 30.3868; -89.0565 (Mississippi City (August 30, EF0)) 12:44–12:45 0.52 mi (0.84 km) 100 yd (91 m) A brief tornado damaged the roofs of several homes and snapped numerous trees.[23]
EF0 E of Gulfport to WSW of Biloxi Harrison MS 30°23′28″N 89°00′22″W / 30.391°N 89.0061°W / 30.391; -89.0061 (Gulfport (August 30, EF0)) 12:49–12:51 1.04 mi (1.67 km) 200 yd (180 m) Trees were snapped and uprooted at a golf club. Several homes sustained damage, and a warehouse lost some of its roof panels.[24]
EF0 Biloxi (3rd tornado) Harrison MS 30°23′50″N 88°59′34″W / 30.3971°N 88.9928°W / 30.3971; -88.9928 (Biloxi 3 (August 30, EF0)) 12:50–12:55 3.47 mi (5.58 km) 125 yd (114 m) Trees were downed and several houses sustained roof damage. The tornado crossed Big Lake and caused minor damage more homes.[25]
EF0 Biloxi (4th tornado) Harrison MS 30°23′51″N 88°58′25″W / 30.3974°N 88.9737°W / 30.3974; -88.9737 (Biloxi 4 (August 30, EF0)) 12:56–12:58 1.05 mi (1.69 km) 150 yd (140 m) Several homes sustained minor roof damage. Portions of roofing were torn off at a bank and a restaurant, and trees and fences were damaged along the tornado's path.[26]
EF0 Pascagoula to SE of Helena Jackson MS 30°21′00″N 88°33′30″W / 30.3499°N 88.5583°W / 30.3499; -88.5583 (Pascagoula (August 30, EF0)) 14:37–14:57 10.19 mi (16.40 km) 50 yd (46 m) A waterspout moved ashore, causing light damage to multiple homes. Tree limbs were damaged.[27]
EF1 Saraland to E of Bucks Mobile, Baldwin AL 30°47′42″N 88°04′23″W / 30.7951°N 88.0731°W / 30.7951; -88.0731 (Saraland (August 30, EF1)) 17:20–17:43 16.62 mi (26.75 km) 175 yd (160 m) The roof of a motel was partially removed just west of US 43 in Saraland, and several sections of another motel's roof were removed. The roof of an industrial building was partially removed and an 18-wheeler was overturned. Trees were uprooted or snapped along the path, including some that fell onto a home near I-65. Three people were injured.[28] In November 2023, this tornado was reanalyzed and had its path length adjusted from 9.96 mi (16.03 km) to 16.62 mi (26.75 km) due to a narrow swath of uprooted and snapped trees noted on Planet and Worldview satellite imagery. The ending point was also extended further to the northeast into the Mobile River delta.[29]
EF1 E of Malcolm Clarke, Baldwin AL 31°13′N 87°52′W / 31.21°N 87.86°W / 31.21; -87.86 (Malcolm (Aug. 30, EF1)) 18:05–18:10 3.53 mi (5.68 km) 175 yd (160 m) In November 2023, a new tornado was found along the Alabama River based on a narrow swath of tree damage noted on Planet and Worldview satellite imagery.[29]
EF1 ESE of Rockville to WSW of Alma Clarke AL 31°24′23″N 87°47′32″W / 31.4064°N 87.7922°W / 31.4064; -87.7922 (Rockville (August 30, EF1)) 18:25–18:28 3.5 mi (5.6 km) 150 yd (140 m) A mobile home was rolled and another home lost much of its roof. Trees were snapped or uprooted as the tornado tracked through a heavily wooded area.[30]
EF0 SE of Troy Pike AL 31°43′36″N 85°54′39″W / 31.7266°N 85.9109°W / 31.7266; -85.9109 (Antioch (August 30, EF0)) 19:02–19:09 3.18 mi (5.12 km) 75 yd (69 m) A few trees were downed or had limbs snapped off.[31]
EF0 SE of Tuskegee Macon AL 32°23′52″N 85°35′53″W / 32.3979°N 85.5981°W / 32.3979; -85.5981 (Red Road (August 30, EF0)) 20:45–20:46 0.48 mi (0.77 km) 75 yd (69 m) Trees and tree limbs were blown down, and a home sustained siding damage.[32]

August 31 event

[edit]
List of confirmed tornadoes – Tuesday, August 31, 2021[note 1]
EF# Location County / parish State Start coord. Time (UTC) Path length Max. width Summary
EF0 SW of Peterman to Jones Crossroads Houston AL 31°12′00″N 85°29′22″W / 31.1999°N 85.4894°W / 31.1999; -85.4894 (Houston County (August 31, EF0)) 20:59–21:08 0.89 mi (1.43 km) 20 yd (18 m) Trees were downed onto a mobile home. Farther along the path, the doors and siding of a warehouse were damaged and the roof of a shed was peeled off.[33]
EF1 SE of Radford Montgomery VA 37°04′51″N 80°31′08″W / 37.0808°N 80.5188°W / 37.0808; -80.5188 (Radford (August 31, EF1)) 22:34–22:38 1.9 mi (3.1 km) 75 yd (69 m) A barn was damaged and several trees were snapped or uprooted.[34]
EF1 NW of Merrimac Montgomery VA 37°11′51″N 80°26′15″W / 37.1974°N 80.4376°W / 37.1974; -80.4376 (Merrimac (August 31, EF1)) 22:59–23:00 0.22 mi (0.35 km) 75 yd (69 m) Several trees were uprooted and snapped, and a swing was destroyed.[35]
EF0 Midland City Dale AL 31°19′10″N 85°30′16″W / 31.3194°N 85.5045°W / 31.3194; -85.5045 (Midland City (August 31, EF0)) 23:14–23:17 0.65 mi (1.05 km) 125 yd (114 m) Bleachers and a dugout at the Dale City High School were damaged. Numerous homes in Midland City sustained minor roof damage, and trampolines were lofted into the air. Several trees were also blown down, some of which fell onto and damaged a home.[36]
EF0 N of Bailey Crossroad Geneva, Houston AL 31°11′18″N 85°36′50″W / 31.1884°N 85.614°W / 31.1884; -85.614 (Bailey Crossroad (August 31, EF0)) 23:34–23:40 2.29 mi (3.69 km) 25 yd (23 m) This tornado moved through open fields before damaging a barn near the end of its path.[37][38]

September 1 event

[edit]
List of confirmed tornadoes – Wednesday, September 1, 2021[note 1]
EF# Location County / parish State Start coord. Time (UTC) Path length Max. width Summary
EF2 Owensville to western Annapolis Anne Arundel MD 38°51′00″N 76°35′46″W / 38.85°N 76.596°W / 38.85; -76.596 (Owensville (Sept. 1, EF2)) 18:01–18:23 11.43 mi (18.39 km) 200 yd (180 m) This damaging tornado first touched down in Owensville before moving north-northeastward, downing trees and tree branches. As it entered the south side of Edgewater, it strengthened and struck a subdivision, where multiple homes had large sections of their roofs torn off, and one was unroofed entirely. The Center of Applied Technology South and South River High School both sustained roof damage, while the concession stand and football field grandstands were also damaged. Many homes suffered considerable roof, siding, and porch damage as the tornado moved farther north-northeast through residential areas. After crossing the South River, the tornado reached peak strength and struck several neighborhoods in Annapolis. Numerous homes, apartment buildings, businesses, warehouses, and restaurants had their roofs ripped off or sustained significant roof and siding damage, including a warehouse that sustained some collapse of exterior walls. Numerous windows were also shattered, signs were destroyed, and many power lines and trees were downed, some of which landed on homes. The tornado weakened and caused additional tree and roof damage as it approached US 301/US 50 before lifting just after crossing it.[39]
EF0 E of Edgemere Baltimore MD 39°11′49″N 76°26′31″W / 39.197°N 76.442°W / 39.197; -76.442 (Edgemere (Sept. 1, EF0)) 18:48–19:00 6.73 mi (10.83 km) 75 yd (69 m) A high-end EF0 tornado developed at the confluence of the Patapsco River and Chesapeake Bay and moved north-northeastward, crossing the Shallow Creek, Back River, and Browns Creek. Trees and branches were snapped along the path before it dissipated near the Middle River.[40]
EF2 Eastern Oxford to NE of Russellville Chester PA 39°46′N 75°58′W / 39.77°N 75.97°W / 39.77; -75.97 (Oxford (Sept. 1, EF2)) 20:15–20:22 5.92 mi (9.53 km) 350 yd (320 m) This low-end EF2 tornado first caused significant damage in the Wiltshire subdivision at the east edge of Oxford. A home lost an exterior wall, another home lost a large part of its roof and much of its siding, and several other homes were damaged to a lesser degree. An outbuilding was damaged and an RV was flipped at a business near the subdivision as well. The tornado weakened as it continued to the north, damaging a metal storage building, turkey pens, outbuildings, power poles, trees, and crops before dissipating. Damage totaled $500,000.[41]
EF0 W of Hurlock Dorchester MD 38°40′N 75°52′W / 38.67°N 75.86°W / 38.67; -75.86 (Hurlock (Sept. 1, EF0)) 20:45–20:58 3.82 mi (6.15 km) 50 yd (46 m) A 40 ft (12 m) section of roofing was torn off of a metal building. Several large irrigation systems were flipped, and damage to soybean and corn crops also occurred.[42]
EF2 Fort Washington to Horsham Montgomery PA 40°06′25″N 75°14′17″W / 40.107°N 75.238°W / 40.107; -75.238 (Fort Washington (Sept. 1, EF2)) 21:35–21:49 8.28 mi (13.33 km) 400 yd (370 m) 1 death – This rain-wrapped, strong tornado touched down near the Philadelphia Cricket Club southwest of Whitemarsh, where minor low-end EF1 tree damage occurred. Additional minor damage occurred to homes and trees in and around Fort Washington State Park. The tornado strengthened to high-end EF1 intensity as it moved through Whitemarsh, crossed the Pennsylvania Turnpike, and moved into a more residential area as it entered Fort Washington, where many trees were snapped, and numerous homes sustained minor to moderate roof and siding damage. The tornado then rapidly intensified and reached its peak intensity of high-end EF2 as it crossed PA 309 in Upper Dublin. Numerous homes and apartment buildings sustained partial to total loss of their roofs, and one sustained collapse of some exterior walls. Almost all trees in this area were uprooted or snapped, and cars were flipped or damaged by flying debris. Upper Dublin High School sustained roof damage, a large building adjacent to the school lost a significant portion of its roof, and power poles were snapped. Homes near the school were damaged, and one woman was killed when a large tree fell onto her house on Kenyon Drive. The tornado weakened to high-end EF1 strength as it continued to move to the northeast, flattening a wide swath of trees in a wooded area and causing severe roof damage to buildings on the campus of Temple University Ambler. Homes were damaged in a nearby neighborhood as well, a few of which also had large sections of roofing torn off. Many additional trees were downed, and mostly minor roof damage to homes, commercial buildings, and a veterinary hospital occurred in Maple Glen before the tornado quickly dissipated near the Bucks County line. Damage totaled $5 million and two people were injured.[43]
EF1 S of Doylestown to Buckingham Township Bucks PA 40°16′N 75°07′W / 40.27°N 75.11°W / 40.27; -75.11 (Doylestown (Sept. 1, EF1)) 21:59–22:06 4.31 mi (6.94 km) 300 yd (270 m) This tornado came from the same storm that produced the previous tornado above. It moved through a forested area, damaging and knocking down trees, some of which blocked roads.[44]
EF3 E of Harrisonville to Mullica Hill to Deptford Gloucester NJ 39°40′37″N 75°15′00″W / 39.6769°N 75.2500°W / 39.6769; -75.2500 (Mullica Hill (Sept. 1, EF3)) 22:10–22:30 12.37 mi (19.91 km) 400 yd (370 m) See section for this tornado – Two people were injured.
EF1 Upper Makefield Township Bucks PA 40°17′53″N 74°56′17″W / 40.298°N 74.938°W / 40.298; -74.938 (Upper Makefield Township (Sept. 1, EF1)) 22:30–22:35 1.6 mi (2.6 km) 250 yd (230 m) Some trees were uprooted at the Jericho National Golf Club. Additional tree damage was found along with several flipped soccer goals at Brownsburg Park. The tornado dissipated just before crossing the Delaware River.[45]
EF1 Edgewater Park, NJ to Bristol, PA Burlington (NJ), Bucks (PA) NJ, PA 40°04′N 74°53′W / 40.06°N 74.89°W / 40.06; -74.89 (Edgewater Park (Sept. 1, EF1)) 22:59–23:04 2.98 mi (4.80 km) 200 yd (180 m) This tornado came from the same storm that produced the Mullica Hill EF3 tornado. Trees and power lines were damaged along the path and a few homes sustained minor damage. Several pictures and videos were taken, particularly as the tornado crossed the Delaware River between Burlington and Bristol. A tornado emergency was issued for this tornado, the first of its kind to be issued in the Northeast.[46][47]
EF0 Princeton Mercer NJ 40°19′N 74°40′W / 40.31°N 74.67°W / 40.31; -74.67 (Princeton (Sept. 1, EF0)) 23:32–23:35 2.61 mi (4.20 km) 100 yd (91 m) This tornado was the last produced by the Mullica Hill supercell. Trees and branches were snapped and uprooted in town, but no structural damage occurred.[48]

September 2 event

[edit]
List of confirmed tornadoes – Thursday, September 2, 2021[note 1]
EF# Location County / parish State Start coord. Time (UTC) Path length Max. width Summary
EF0 Dennis Barnstable MA 41°44′29″N 70°12′49″W / 41.7413°N 70.2135°W / 41.7413; -70.2135 (Oxford (Sept. 2, EF0)) 05:30–05:31 0.1 mi (0.16 km) 15 yd (14 m) A weak tornado caused minor damage to two homes in town, and knocked down three large oak trees.[49]

Cedar Grove–Mullica Hill–Wenonah–Deptford, New Jersey

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Cedar Grove–Mullica Hill–Mantua-Wenonah–Deptford, New Jersey
A home that was completely leveled at EF3 intensity on the east side of Mullica Hill, New Jersey
Meteorological history
FormedSeptember 1, 2021, 6:10 p.m. EDT (UTC−04:00)
DissipatedSeptember 1, 2021, 6:30 p.m. EDT (UTC−04:00)
Duration20 minutes
EF3 tornado
on the Enhanced Fujita scale
Highest winds150 mph (240 km/h)
Overall effects
Injuries2
Damage>$2 million (2023 USD)[50]

This intense wedge tornado caused major damage as it paralleled Route 45 to its west in Gloucester County. It first touched down at 6:10 p.m. EDT (22:10 UTC), east-southeast of Harrisonville, initially causing minor tree damage. Tree damage became more significant as it moved northeast into the eastern side of Cedar Grove, and dozens of trees were downed at EF1 intensity in the small community. The tornado became strong and destructive as it struck the Willow Oaks subdivision at the northeast edge of Cedar Grove, where multiple homes sustained significant structural damage on Marvin Lane. Roofs were ripped off, exterior walls were collapsed, vehicles were moved and damaged, and one home was left with only a few walls left standing, with the damage in this area being rated EF3. The tornado then weakened momentarily as it struck a commercial farm along Route 77 at the south edge of Mullica Hill, destroying barns and storage buildings at EF1 to EF2 intensity before strengthening again and moving through a subdivision in the eastern part of town.

The large tornado reached its peak intensity of mid-range EF3 at this location as it moved over Salvatore Lane and Clems Run. Several two-story homes sustained total roof and exterior wall loss in this area, and cars were tossed around. One house was completely leveled, though it was not well-anchored and nearby trees did not sustain damage consistent with a tornado stronger than EF3 strength. Crossing US 322 past Mullica Hill, the tornado maintained its strength as it destroyed barns and silos at a large dairy farm, and completely mowed down a wide swath of large trees as it moved through a wooded area. In the worst affected area, every tree in the direct path was snapped near the base. The tornado then briefly weakened to EF1 intensity before regaining EF2 intensity as it moved into Mantua Township and passed west of Barnsboro, where many trees were downed, homes sustained roof damage, and a large commercial greenhouse was partially destroyed. Continuing to the northeast, it remained at EF2 strength as it impacted Wenonah, where garages were destroyed, a fire station was damaged, and some homes had roofs and exterior walls ripped off.

The tornado then narrowed and gradually weakened, causing mostly minor damage to trees, fences, roofs and siding occurred in Woodbury Heights and Deptford before dissipating at 6:30 p.m. EDT (22:30 UTC). It traveled 12.37 miles (19.91 km) and reached a maximum path width of 400 yards (370 m). Two people were injured. This was the first F3/EF3 rated tornado in the state of New Jersey since 1990, and one of only four ever confirmed in the state.[10][51] Damages exceeded $64 million, although the official estimate from the National Centers for Environmental Information is $5 million.[52][51][53]

See also

[edit]

Notes

[edit]
  1. ^ a b c d e All dates are based on the local time zone where the tornado touched down; however, all times are in Coordinated Universal Time for consistency.

References

[edit]
  1. ^ Tornado Reports: August 28-September 2, 2021, NCEI
  2. ^ "2021 [KPHI] MOUNT_HOLLY Tornado (TO) Warning (W) Number 49". Iowa Environmental Mesonet. NWS Mount Holly. September 1, 2021. Retrieved September 6, 2021.
  3. ^ Brown, Daniel P.; Brennan, Michael J. (August 29, 2021). Hurricane Ida Tropical Cyclone Update (Report). Miami, Florida: National Hurricane Center. Archived from the original on August 29, 2021. Retrieved August 30, 2021.
  4. ^ SPC Severe Weather Event Review for Sunday August 29, 2021. www.spc.noaa.gov (Report). Storm Prediction Center. August 29, 2021. Retrieved September 3, 2021.
  5. ^ SPC Severe Weather Event Review for Monday August 30, 2021. www.spc.noaa.gov (Report). Storm Prediction Center. August 30, 2021. Retrieved September 2, 2021.
  6. ^ a b SPC Severe Weather Event Review for Tuesday August 31, 2021. www.spc.noaa.gov (Report). Storm Prediction Center. August 31, 2021. Retrieved September 3, 2021.
  7. ^ National Weather Service Weather Forecast Office in Mobile, Alabama (August 31, 2021). NWS Damage Survey for Hurricane Ida Tornado Event (Report). Iowa Environmental Mesonet. Retrieved August 31, 2021.
  8. ^ National Weather Service Weather Forecast Office in Blacksburg, Virginia (September 1, 2021). NWS Damage Survey for August 31 2021 Tornadoes in Montgomery County Virginia (Report). Iowa Environmental Mesonet. Retrieved September 2, 2021.
  9. ^ SPC Severe Weather Event Review for Wednesday September 01, 2021. www.spc.noaa.gov (Report). Storm Prediction Center. September 1, 2021. Retrieved September 3, 2021.
  10. ^ a b "ArcGIS Web Application". apps.dat.noaa.gov. Retrieved July 9, 2021.
  11. ^ a b c National Weather Service Weather Forecast Office in Mount Holly, New Jersey (September 3, 2021). September 1 2021 Tornadoes (Report). Iowa Environmental Mesonet. Retrieved September 3, 2021.
  12. ^ National Weather Service in New Orleans, Louisiana (2021). Mississippi Event Report: EF1 Tornado (Report). National Centers for Environmental Information. Retrieved March 31, 2022.
  13. ^ National Weather Service in New Orleans, Louisiana (2021). Mississippi Event Report: EF1 Tornado (Report). National Centers for Environmental Information. Retrieved March 31, 2022.
  14. ^ National Weather Service in New Orleans, Louisiana (2021). Mississippi Event Report: EF1 Tornado (Report). National Centers for Environmental Information. Retrieved March 31, 2022.
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  39. ^ National Weather Service Weather Forecast Office in Baltimore/Washington DC (2021). Maryland Event Report: EF2 Tornado (Report). National Centers for Environmental Information. Retrieved December 18, 2021.
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  50. ^ "Storm Events Database - Event Details | National Centers for Environmental Information".
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  52. ^ Costs exceed $64M for mega tornado that ripped through N.J. county during Ida, NJ.com, October 29, 2021
  53. ^ Tucker, Nelson (20 January 2022). "Chapter III: Mt Royal Road-Aerial Drive (Mullica Hill Part III) EF3 Tornado – September 1, 2021". Tornado Talk. Archived from the original on 26 November 2022. Retrieved 26 November 2022.
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