572
NOUS43 KABR 301946 AAB
PNSABR
SDZ009-310745-

Public Information Statement...UPDATED
National Weather Service Aberdeen SD
246 PM CDT Fri Aug 30 2024

...NWS Damage Survey for 08/28/24 Tornado Event...Update #2.

Track length and wind speed was updated for tornado #1. We
continue to consult experts on wind speeds estimates for collapsed
electric transmission towers.

Track length was updated based on drone video for tornado #2.

Information was added for a fourth tornado southeast of Mound
City, SD.

The following report is preliminary information from the damage survey.
Additional reports/accounts are being investigated.

.Campbell Tornado #1...

Rating:                 EF2
Estimated Peak Wind:    120 mph
Path Length /statute/:  2.44 miles
Path Width /maximum/:   150 yards
Fatalities:             0
Injuries:               0

Start Date:             08/28/2024
Start Time:             07:50 PM CDT
Start Location:         8 WSW Mound City / Campbell County / SD
Start Lat/Lon:          45.6753 / -100.2365

End Date:               08/28/2024
End Time:               08:10 PM CDT
End Location:           7 SW Mound City / Campbell County / SD
End Lat/Lon:            45.6612 / -100.1919

Survey Summary:
The tornado touched down on the west side of SDHWY 1804 and
crossed the road into a soybean field just east of SDHWY 1804 and
north of 119th St. As it tracked east it toppled three electrical
transmission towers. The tornado skipped along in an east-
southeast direction, encountering a farmstead 0.5 miles east on
119th St. At this location multiple trees were broken, snapped
and uprooted. One small shed was lifted, another shed the walls
collapsed and a machine shed had the doors blown out. The main
house lost windows. A tractor lost doors facing east and west but
the front and back windshields were intact. Additionally, a
trailer was rolled on the road and other small farm implements
were destroyed or moved. Hay bales were tossed and the last sign
of a track was noted in a corn field just south of the
intersection of 119th St and 300th Ave. Times are subject to
radar and video review and track is preliminary pending drone
footage.

.Campbell Tornado #2...

Rating:                 EFU
Estimated Peak Wind:    None mph
Path Length /statute/:  0.87 miles
Path Width /maximum/:   50 yards
Fatalities:             0
Injuries:               0

Start Date:             08/28/2024
Start Time:             08:10 PM CDT
Start Location:         6 SW Mound City / Campbell County / SD
Start Lat/Lon:          45.6613 / -100.1707

End Date:               08/28/2024
End Time:               08:15 PM CDT
End Location:           6 SW Mound City / Campbell County / SD
End Lat/Lon:            45.6698 / -100.1584

Survey Summary:
A brief tornado crossed 119th street from southwest to northeast
between 301st and 302nd ave. The track was clearly seen through a
corn crop, but no other damage was evident. Times are subject to
radar and video review and track is preliminary pending drone
footage.

.Campbell Tornado #3...

Rating:                 EF1
Estimated Peak Wind:    87 mph
Path Length /statute/:  0.19 miles
Path Width /maximum/:   20 yards
Fatalities:             0
Injuries:               0

Start Date:             08/28/2024
Start Time:             08:20 PM CDT
Start Location:         6 SW Mound City / Campbell County / SD
Start Lat/Lon:          45.6688 / -100.1643

End Date:               08/28/2024
End Time:               08:25 PM CDT
End Location:           6 SW Mound City / Campbell County / SD
End Lat/Lon:            45.6662 / -100.1653

Survey Summary:
A brief tornado tracked from north northeast to south southwest,
damaging a farmstead. A tree was uprooted, silo dented, two shop
buildings lost roof panels and doors.  Additionally, a house
trailer was rolled 100 feet across 119th St, with debris tossed
into a corn field. Times are subject to radar and video review
and track is preliminary pending drone footage.

.Campbell Tornado #4...

Rating:                 EFU
Estimated Peak Wind:    N/A
Path Length /statute/:  N/A
Path Width /maximum/:   N/A
Fatalities:             0
Injuries:               0

Start Date:             08/28/2024
Start Time:             08:50 PM CDT
Start Location:         3.5 SE Mound City / Campbell County / SD
Start Lat/Lon:          45.71 / -100.00

End Date:               08/28/2024
End Time:               08:52 PM CDT
End Location:           3.5 SE Mound City / Campbell County / SD
End Lat/Lon:            45.71 / -100.00

Survey Summary:
Photo evidence of a tornado touchdown roughly 3.5 miles southeast
of Mound City continues to be investigated.

&&

EF Scale: The Enhanced Fujita Scale classifies tornadoes into the
following categories:

EF0.....65 to 85 mph
EF1.....86 to 110 mph
EF2.....111 to 135 mph
EF3.....136 to 165 mph
EF4.....166 to 200 mph
EF5.....>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.


$$