Preliminari audros suvestinė 2022 m. gegužės 12 d., Derecho rytinėje Pietų Dakotos dalyje rodo 7 tornadus

Preliminari audros suvestinė 2022 m. gegužės 12 d., Derecho rytinėje Pietų Dakotos dalyje rodo 7 tornadus

Ketvirtadienio, 2022 m. gegužės 12 d., vėlyvą popietę ir ankstyvą vakarą per Šiaurės lygumas slinko reta ir ypač pavojinga audrų sistema, žinoma kaip derecho, įskaitant rytinę Pietų Dakotą ir vakarinę centrinę Minesotą. Derechos pasižymi neįprastai plačiai paplitusia vėjo žala, ir tai buvo vienas ekstremaliausių užfiksuotų pavyzdžių. Jis skriejo šiaurės-šiaurės rytų kryptimi 50–70+ mylių per valandą greičiu ir sukėlė išmatuotų tiesių vėjų greitį nuo 60 iki 100 mylių per valandą. Tai yra maždaug tas pats, kas 1 kategorijos uraganas (74–95 mylių per valandą) ir EF0–EF1 tornadas (65–110 mylių per valandą) dideliame plote. Taip pat buvo pranešta apie pučiamas dulkes, ypač pietryčių Pietų Dakotoje. Be to, buvo pranešta ir patvirtinta keletas tornadų. Didžiausia žala buvo padaryta Hamlino ir Deuelio apskrityse. EF2 tornadas, kurio vėjo greitis siekė 120 mylių per valandą, praskriejo per Castlewood miestą, SD. Dėl to daug smarkiai apgadintų ar sunaikintų konstrukcijų. Kitą sodybą į pietus nuo Gary, SD, taip pat nusiaubė viesulas. Apskaičiuota, kad šioje vietoje vėjo greitis yra 135 mylių per valandą, todėl tai yra aukščiausios klasės EF2 tornadas.

Nacionalinė orų tarnyba Aberdyne dislokavo tris žalos tyrimo įgulas, kad dokumentuotų ir įvertintų tornadų žalą. Buvo užfiksuoti septyni tornadai. Rezultatai yra preliminarūs ir gali keistis, tačiau pirminę ataskaitą galite rasti žemiau.

Public Information Statement National Weather Service Aberdeen SD 754 PM CDT Fri May 13 2022 /654 PM MDT Fri May 13 2022/
...NWS Damage Survey for 05/12/22 Tornado Event...

Tornado #1...
Rating:                 EF2
Estimated Peak Wind:    120 mph
Path Length /statute/:  1.9756 miles
Path Width /maximum/:   80.0 yards
Fatalities:             0
Injuries:               1
Start Date:             05/12/2022
Start Time:             05:45 PM CDT
Start Location:         Castlewood / Hamlin County / SD
Start Lat/Lon:          44.717 / -97.0279
End Date:               05/12/2022
End Time:               05:49 PM CDT
End Location:           1 N Castlewood / Hamlin County / SD
End Lat/Lon:            44.7454 / -97.0286
Survey Summary:
Several eyewitnesses reported a small funnel/tornado descending, widening and developing very rapidly at the edge of Castlewood, SD. Damage was evident as soon as it reached the southern edge of town. A majority of the damage occurred between 3rd Avenue and 4th Avenue. On Market Street, a small funeral home visitation center
was completely blown off its foundation. Debris from the funeral home was tossed to the north, including the air conditioning unit which was tossed into a yard one block to the north. A garage was destroyed and completely blown from its foundation on Allen St.
The next block to the north, a manufactured home lost a roof and sustained significant damage to external walls. Another garage on this street was completely blown off the foundation and destroyed. Similar damage was noted a block north on Main Street. Another manufactured home lost an entire roof and its external walls
collapsed. Yet another garage was destroyed as it slid off the foundation. The next block north, on Alice St, significant roof damage was noted to several homes and another garage was completely shifted off of the foundation. One particular residence had a roof that appeared to be slightly rotated and was sagging.
The Castlewood Elementary school, situated between Harry St and Pear St, sustained significant damage to the school and gymnasium roof. Damage was also sustained to sections of the brick external walls. The school bus shed was completely destroyed with loss of the roof and external walls. North of the school, on Prairie St, a
residence sustained significant damage. At this property, a garage was completely destroyed, and a shed was tossed in the air landing upside down. The home itself lost the entire roof and the south facing external walls collapsed. The tornado would continue to track north across an open field and across US HWY 22. 
Additional debris and tree damage was noted a mile north of US HWY 22 before the tornado lifted. Throughout the entire path of the tornado there were uprooted and snapped trees and significant siding and roof damage to homes.

Tornado #2...
Rating:                 EF2
Estimated Peak Wind:    135 mph
Path Length /statute/:  0.4344 miles
Path Width /maximum/:   60.0 yards
Fatalities:             0
Injuries:               1
Start Date:             05/12/2022
Start Time:             05:58 PM CDT
Start Location:         1 S Gary / Deuel County / SD
Start Lat/Lon:          44.7733 / -96.4598
End Date:               05/12/2022
End Time:               06:00 PM CDT
End Location:           1 S Gary / Deuel County / SD
End Lat/Lon:            44.7777 / -96.4536
Survey Summary:
1 Mile south of Gary, SD a farm sustained significant tornado damage. The home on the property lost the entire roof, along with most of the external walls on the main floor of the house. Only a portion of the internal walls remained standing. The resident home at the time was able to make it to the basement, however did sustain minor injuries when a refrigerator from the main floor fell down through the ceiling. The attached garage was completely blown off the foundation, and the pickup in the garage was pushed at least 6 feet from where it was originally parked. Nearby outbuildings sustained roof damage, including a hole in one roof that was likely caused from flying debris. The tornado continued to track north northeast of the farm into an open corn stubble field. Rotation was noted in the stubble. The debris track was spread across the field with large pieces of wood and other construction materials pierced vertically into the ground. Further to the north northeast a semi was turned 180 degrees and flipped on its side. The debris path continued across 180th street and was last noted in a tree grove approximately 0.3 miles from the residence. The resident also noted that the family dog was seen 
being swept out of the house during the tornado, but was later found safe with only minor injuries after walking to a neighbor's farm about one mile away.

Tornado #3...
Rating:                 EF1
Estimated Peak Wind:    110 mph
Path Length /statute/:  0.1656 miles
Path Width /maximum/:   35.0 yards
Fatalities:             0
Injuries:               0
Start Date:             05/12/2022
Start Time:             06:02 PM CDT
Start Location:         6 WNW Rauville / Codington County / SD
Start Lat/Lon:          45.0049 / -97.1903
End Date:               05/12/2022
End Time:               06:03 PM CDT
End Location:           6 WNW Rauville / Codington County / SD
End Lat/Lon:            45.0069 / -97.192
Survey Summary:
A tornado occurred 4 miles north of Lake Kampeska. The tornado hit the northeast side of a house and removed the garage from the house along with part of the roof. The garage was tossed to the north and northeast. An outbuilding to the north of the house was also destroyed and thrown to the north and northwest. The debris 
was scattered at least a half mile north and northwest of the location of the house. 

Tornado #4..
Rating:                 EF1
Estimated Peak Wind:    100 mph
Path Length /statute/:  3.338 miles
Path Width /maximum/:   10.0 yards
Fatalities:             0
Injuries:               0
Start Date:             05/12/2022
Start Time:             06:51 PM CDT
Start Location:         5 E Dumont / Traverse County / MN
Start Lat/Lon:          45.7058 / -96.3115
End Date:               05/12/2022
End Time:               06:54 PM CDT
End Location:           6 ENE Dumont / Traverse County / MN
End Lat/Lon:            45.7519 / -96.2904
Survey Summary:
A tornado developed 6 miles east of Dumont on the leading edge of a line of severe thunderstorms, and then traveled quickly northeast. An outbuilding took heavy damage, with debris strewn northeast a quarter mile. The majority of the 2x4 planks were deposited directly to the east of the shed, while another single 2x4 was lodged into the ground at an angle not consistent with straight-line winds. The tornado then destroyed several large well-anchored, mostly empty grain bins. Some tin from the property was thrown due west into the trees. 

Tornado #5...

Rating:                 EF0
Estimated Peak Wind:    80 mph
Path Length /statute/:  5.6682 miles
Path Width /maximum/:   10.0 yards
Fatalities:             0
Injuries:               0
Start Date:             05/12/2022
Start Time:             06:58 PM CDT
Start Location:         4 SW Norcross / Traverse County / MN
Start Lat/Lon:          45.8249 / -96.2695
End Date:               05/12/2022
End Time:               07:03 PM CDT
End Location:           3 SSE Charlesville / Traverse County / MN
End Lat/Lon:            45.9063 / -96.2542
Survey Summary:
A tornado developed 11 miles east of Wheaton along the leading edge of a line of severe thunderstorms. This tornado traveled rapidly north-northeastward and impacted three farmsteads. Several trees were uprooted and fell in different directions, outbuildings were severely damaged, and both homes were damaged as well including the partial removal of a garage roof. The tornado continued northeast to along the Grant County line, and impacted another farmstead. Silo damage, trees felled in different directions, and a small outbuilding was moved 10 yards to the northwest. 
Tornado #6...

Rating:                 EF1
Estimated Peak Wind:    100 mph
Path Length /statute/:  0.2527 miles
Path Width /maximum/:   50.0 yards
Fatalities:             0
Injuries:               0
Start Date:             05/13/2022
Start Time:             06:05 PM CDT
Start Location:         1 ESE Tunerville / Deuel County / SD
Start Lat/Lon:          44.8841 / -96.652
End Date:               05/13/2022
End Time:               06:07 PM CDT
End Location:           1 E Tunerville / Deuel County / SD
End Lat/Lon:            44.8875 / -96.6527
Survey Summary:
A tornado touched down on the northeast side of Lake Alice causing damage to a hunting lodge property. Evidence was first noted in a corn stubble field where stubble was broken and flattened. North of the corn field, several trees were uprooted or snapped at the base. North from there, the main lodge house lost half the roof covering and several roof panels on the west side of the house. This resulted in rain damage inside the lodge. On the west side of the property a family was in a camper when they received warnings and decided to leave for a sturdier
shelter nearby. Minutes after they left the camper, it was picked up and dropped on its roof. The family was not injured.

Tornado #7...
Rating:                 EF1
Estimated Peak Wind:    100 mph
Path Length /statute/:  0.1199 miles
Path Width /maximum/:   20.0 yards
Fatalities:             0
Injuries:               0
Start Date:             05/13/2022
Start Time:             06:13 PM CDT
Start Location:         7 S Webster / Day County / SD
Start Lat/Lon:          45.2348 / -97.4948
End Date:               05/13/2022
End Time:               06:14 PM CDT
End Location:           7 S Webster / Day County / SD
End Lat/Lon:            45.2364 / -97.4959
Survey Summary:
A tornado 6 miles to the south-southeast of Webster hit an outbuilding, pulling the roof off and knocking over the interior wall. The debris from the building was carried to the northwest for over 250 yards and spread out to the west. A calving shed was rolled to the north and then northwest. An animal trailer was tipped over and a metal windmill was knocked over and twisted. 
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 events and publication in NWS Storm Data.



Papildomos informacijos ir nuotraukų taip pat galite rasti apsilankę santraukos puslapyje NWS svetainėje: https://www.weather.gov/abr/StormsummaryMay122022.

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