Английская Википедия:Hurricane Ida tornado outbreak

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Шаблон:Short description Шаблон:Infobox storm Hurricane Ida generated a tornado outbreak as it traversed the Southeastern, Mid-Atlantic, and Northeastern United States. Thirty-five 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 it's remnants.[1] 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

Шаблон:Storm path At 16:55 UTC on August 29, Hurricane Ida made landfall near Port Fourchon, Louisiana, with sustained winds of Шаблон:Convert and a central pressure of Шаблон:Convert.[2] 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.[3][4][5] 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.[6] 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.[5] Two weak tornadoes occurred in Southwest Virginia that afternoon.[7]

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.[8] 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.[9] Another EF2 tornado caused severe damage in a residential neighborhood in Oxford, Pennsylvania.[10] 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.[10] An intense EF3 wedge tornado destroyed several homes and a dairy farm in Mullica Hill, New Jersey as well, injuring two people.[10] 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

Шаблон:Tornado chart

August 29 event

List of confirmed tornadoes – Sunday, August 29, 2021Шаблон:Efn
EF# Location County / Parish State Start Coord. Time (UTC) Path length Max width Summary
bgcolor="Шаблон:Storm colour" | EF1 WSW of Pass Christian to SW of Diamondhead Harrison, Hancock MS Шаблон:Coord 11:23–11:28 Шаблон:Convert Шаблон:Convert 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.[11][12]
bgcolor="Шаблон:Storm colour" | EF0 Gulfport Harrison MS Шаблон:Coord 22:15–22:19 Шаблон:Convert Шаблон:Convert 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.[13]
bgcolor="Шаблон:Storm colour" | EF1 Eden Isle (1st tornado) St. Tammany LA Шаблон:Coord 23:33–23:38 Шаблон:Convert Шаблон:Convert Two buildings at a condominium complex had their roofs partially torn off. Numerous houses were damaged and trees were downed.[14]
bgcolor="Шаблон:Storm colour" | EF0 SE to NW of Pearlington Hancock MS Шаблон:Coord 23:59–00:09 Шаблон:Convert Шаблон:Convert A waterspout moved onshore, blowing down road signs and posts. Trees and roofs of homes were damaged.[15]
bgcolor="Шаблон:Storm colour" | EF0 Eden Isle (2nd tornado) St. Tammany LA Шаблон:Coord 01:56–01:57 Шаблон:Convert Шаблон:Convert A brief tornado damage roofs and fences and uprooted trees.[16]
bgcolor="Шаблон:Storm colour" | EF0 ESE of Waveland to Shoreline Park Hancock MS Шаблон:Coord 03:11–03:14 Шаблон:Convert Шаблон:Convert 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.[17]
bgcolor="Шаблон:Storm colour" | EF0 NE of Waveland to NE of Shoreline Park Hancock MS Шаблон:Coord 03:15–03:18 Шаблон:Convert Шаблон:Convert A waterspout moved onshore, where the roofs of several homes sustained minor damage. Several trees were snapped or uprooted as well.[18]
bgcolor="Шаблон:Storm colour" | EF0 Henderson Point Harrison MS Шаблон:Coord 03:37–03:38 Шаблон:Convert Шаблон:Convert 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.[19]

August 30 event

List of confirmed tornadoes – Monday, August 30, 2021Шаблон:Efn
EF# Location County / Parish State Start Coord. Time (UTC) Path length Max width Summary
bgcolor="Шаблон:Storm colour" | EF0 Biloxi (1st tornado) Harrison MS Шаблон:Coord 09:18–09:19 Шаблон:Convert Шаблон:Convert A very brief tornado caused minor damage to several homes and several apartment buildings.[20]
bgcolor="Шаблон:Storm colour" | EF0 Biloxi (2nd tornado) Harrison MS Шаблон:Coord 10:55–10:56 Шаблон:Convert Шаблон:Convert A brief tornado inflicted minor damage to several homes and a small office complex. Large tree limbs were snapped.[21]
bgcolor="Шаблон:Storm colour" | EF0 NW of Mississippi City Harrison MS Шаблон:Coord 12:44–12:45 Шаблон:Convert Шаблон:Convert A brief tornado damaged the roofs of several homes and snapped numerous trees.[22]
bgcolor="Шаблон:Storm colour" | EF0 E of Gulfport to WSW of Biloxi Harrison MS Шаблон:Coord 12:49–12:51 Шаблон:Convert Шаблон:Convert Trees were snapped and uprooted at a golf club. Several homes sustained damage, and a warehouse lost some of its roof panels.[23]
bgcolor="Шаблон:Storm colour" | EF0 Biloxi (3rd tornado) Harrison MS Шаблон:Coord 12:50–12:55 Шаблон:Convert Шаблон:Convert Trees were downed and several houses sustained roof damage. The tornado crossed Big Lake and caused minor damage more homes.[24]
bgcolor="Шаблон:Storm colour" | EF0 Biloxi (4th tornado) Harrison MS Шаблон:Coord 12:56–12:58 Шаблон:Convert Шаблон:Convert 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.[25]
bgcolor="Шаблон:Storm colour" | EF0 Pascagoula to SE of Helena Jackson MS Шаблон:Coord 14:37–14:57 Шаблон:Convert Шаблон:Convert A waterspout moved ashore, causing light damage to multiple homes. Tree limbs were damaged.[26]
bgcolor="Шаблон:Storm colour" | EF1 Saraland to E of Bucks Mobile, Baldwin AL Шаблон:Coord 17:20–17:43 Шаблон:Convert Шаблон:Convert 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.[27] In November 2023, this tornado was reanalyzed and had its path length adjusted from Шаблон:Convert to Шаблон:Convert 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.[28]
bgcolor=#Шаблон:Storm colour | EF1 E of Malcolm Clarke, Baldwin AL Шаблон:Coord 18:05–18:10 Шаблон:Convert Шаблон:Convert 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]
bgcolor="Шаблон:Storm colour" | EF1 ESE of Rockville to WSW of Alma Clarke AL Шаблон:Coord 18:25–18:28 Шаблон:Convert Шаблон:Convert 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]
bgcolor="Шаблон:Storm colour" | EF0 SE of Troy Pike AL Шаблон:Coord 19:02–19:09 Шаблон:Convert Шаблон:Convert A few trees were downed or had limbs snapped off.[31]
bgcolor="Шаблон:Storm colour" | EF0 SE of Tuskegee Macon AL Шаблон:Coord 20:45–20:46 Шаблон:Convert Шаблон:Convert Trees and tree limbs were blown down, and a home sustained siding damage.[32]

August 31 event

List of confirmed tornadoes – Tuesday, August 31, 2021Шаблон:Efn
EF# Location County / Parish State Start Coord. Time (UTC) Path length Max width Summary
bgcolor="Шаблон:Storm colour" | EF0 SW of Peterman to Jones Crossroads Houston AL Шаблон:Coord 20:59–21:08 Шаблон:Convert Шаблон:Convert 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]
bgcolor="Шаблон:Storm colour" | EF1 SE of Radford Montgomery VA Шаблон:Coord 22:34–22:38 Шаблон:Convert Шаблон:Convert A barn was damaged and several trees were snapped or uprooted.[34]
bgcolor="Шаблон:Storm colour" | EF1 NW of Merrimac Montgomery VA Шаблон:Coord 22:59–23:00 Шаблон:Convert Шаблон:Convert Several trees were uprooted and snapped, and a swing was destroyed.[35]
bgcolor="Шаблон:Storm colour" | EF0 Midland City Dale AL Шаблон:Coord 23:14–23:17 Шаблон:Convert Шаблон:Convert 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]
bgcolor="Шаблон:Storm colour" | EF0 N of Bailey Crossroad Geneva, Houston AL Шаблон:Coord 23:34–23:40 Шаблон:Convert Шаблон:Convert This tornado moved through open fields before damaging a barn near the end of its path.[37][38]

September 1 event

List of confirmed tornadoes – Wednesday, September 1, 2021Шаблон:Efn
EF# Location County / Parish State Start Coord. Time (UTC) Path length Max width Summary
bgcolor="Шаблон:Storm colour" | EF2 Owensville to western Annapolis Anne Arundel MD Шаблон:Coord 18:01–18:23 Шаблон:Convert Шаблон:Convert 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]
bgcolor="Шаблон:Storm colour" | EF0 E of Edgemere Baltimore MD Шаблон:Coord 18:48–19:00 Шаблон:Convert Шаблон:Convert 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]
bgcolor="Шаблон:Storm colour" | EF2 Eastern Oxford to NE of Russellville Chester PA Шаблон:Coord 20:15–20:22 Шаблон:Convert Шаблон:Convert 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]
bgcolor="Шаблон:Storm colour" | EF0 W of Hurlock Dorchester MD Шаблон:Coord 20:45–20:58 Шаблон:Convert Шаблон:Convert A Шаблон:Convert 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]
bgcolor="Шаблон:Storm colour" | EF2 Fort Washington to Horsham Montgomery PA Шаблон:Coord 21:35–21:49 Шаблон:Convert Шаблон:Convert 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]
bgcolor="Шаблон:Storm colour" | EF1 S of Doylestown to Buckingham Township Bucks PA Шаблон:Coord 21:59–22:06 Шаблон:Convert Шаблон:Convert 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]
bgcolor="Шаблон:Storm colour" | EF3 E of Harrisonville to Mullica Hill to Deptford Gloucester NJ Шаблон:Coord 22:10–22:30 Шаблон:Convert Шаблон:Convert See section for this tornado – Two people were injured.
bgcolor="Шаблон:Storm colour" | EF1 Upper Makefield Township Bucks PA Шаблон:Coord 22:30–22:35 Шаблон:Convert Шаблон:Convert 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]
bgcolor="Шаблон:Storm colour" | EF1 Edgewater Park, NJ to Bristol, PA Burlington (NJ), Bucks (PA) NJ, PA Шаблон:Coord 22:59–23:04 Шаблон:Convert Шаблон:Convert This tornado came from the same storm that produced the Mullica Hill EF3 tornado and several pictures and videos were taken of it. Trees and power lines were damaged along the path and a few homes sustained minor damage. A tornado emergency was issued for this tornado, this first of its kind to be issued in the Northeast.[46][47]
bgcolor="Шаблон:Storm colour" | EF0 Princeton Mercer NJ Шаблон:Coord 23:32–23:35 Шаблон:Convert Шаблон:Convert 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

List of confirmed tornadoes – Thursday, September 2, 2021Шаблон:Efn
EF# Location County / Parish State Start Coord. Time (UTC) Path length Max width Summary
bgcolor="Шаблон:Storm colour" | EF0 Dennis Barnstable MA Шаблон:Coord 05:30–05:31 Шаблон:Convert Шаблон:Convert 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

Шаблон:Infobox storm 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 Шаблон:Convert and reached a maximum path width of Шаблон:Convert. 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.[9][50] Damages exceeded $64 million, although the official estimate from the National Centers for Environmental Information is $5 million.[51][50][52]

See also

Шаблон:Portal

Notes

Шаблон:Reflist

References

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External links

Шаблон:2021 tornado outbreaks Шаблон:Alabama tornado events Шаблон:Maryland tornado events

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