Damage Survey PNS (Max: EF1) from KDMX

[akr...@iastate.edu]

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Text Permalink: IEM Website (202605202133-KDMX-NOUS43-PNSDMX)

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Max EF Rating Below: (EF1)

Count by Rating:

EF-0 ⇒ 5

EF-1 ⇒ 9

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264 
NOUS43 KDMX 202133
PNSDMX
IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075-
081>086-092>097-210945-

Public Information Statement
National Weather Service Des Moines IA
433 PM CDT Wed May 20 2026

...NWS Damage Survey for May 16 through May 18 Tornado Events...

.Overview...
A multi-day severe weather episode produced at least 15 tornadoes
across portions of northern and southern Iowa from May 16 through
May 18. The most active day was on Sunday, May 16th, where at 
least 13 tornadoes were observed across northern Iowa. The
number of tornadoes, tornado track locations, and timing will be 
refined as additional information is assessed over the coming 
days. 

Additionally, the following website has more information and will
be updated as new information is received.
 
weather.gov/desmoines/2026-05-15-18-Central-Iowa-MultiDay-Severe


.Gravity Tornado - Saturday...

Rating:                 EFU
Estimated Peak Wind: 	Unknown
Path Length /statute/: 	0.80 miles 
Path Width /maximum/: 	20 yards 
Fatalities: 			0 
Injuries: 				0

Start Date:             05/16/2026
Start Time:             05:51 PM CDT
Start Location:         3 SW Gravity / Taylor County / IA
Start Lat/Lon:          40.7295 / -94.7897

End Date:               05/16/2026
End Time:               05:57 PM CDT
End Location:           2 SW Gravity / Taylor County / IA
End Lat/Lon:            40.7312 / -94.775

Survey Summary:
Intermittent touchdowns throughout the path.


.Knoke Tornado - Sunday...

Rating:                 EF1
Estimated Peak Wind:    110 mph
Path Length /statute/:  4.16 miles
Path Width /maximum/:   30 yards
Fatalities:             0
Injuries:               0

Start Date:             05/17/2026
Start Time:             09:01 PM CDT
Start Location:         3 NW Jolley / Calhoun County / IA
Start Lat/Lon:          42.5098 / -94.7648

End Date:               05/17/2026
End Time:               09:05 PM CDT
End Location:           2 SSW Pomeroy / Calhoun County / IA
End Lat/Lon:            42.5285 / -94.6877


.Plover Tornado - Sunday...

Rating:                 EF1
Estimated Peak Wind:    95 mph
Path Length /statute/:  1.09 miles
Path Width /maximum/:   30 yards
Fatalities:             0
Injuries:               0

Start Date:             05/17/2026
Start Time:             09:05 PM CDT
Start Location:         1 SW Plover / Pocahontas County / IA
Start Lat/Lon:          42.8684 / -94.6369

End Date:               05/17/2026
End Time:               09:06 PM CDT
End Location:           Plover / Pocahontas County / IA
End Lat/Lon:            42.8758 / -94.618

Survey Summary:
Damage in Plover. Tornado reported in the area.


.Mallard Tornado - Sunday...

Rating:                 EF1
Estimated Peak Wind:    0 mph
Path Length /statute/:  2.76 miles
Path Width /maximum/:   25 yards
Fatalities:             0
Injuries:               0

Start Date:             05/17/2026
Start Time:             09:09 PM CDT
Start Location:         2 SW Mallard / Palo Alto County / IA
Start Lat/Lon:          42.921 / -94.7058

End Date:               05/17/2026
End Time:               09:12 PM CDT
End Location:           1 NNE Mallard / Palo Alto County / IA
End Lat/Lon:            42.9551 / -94.6777


.Rockwell City Tornado - Sunday...

Rating:                 EF1
Estimated Peak Wind:    105 mph
Path Length /statute/:  0.18 miles
Path Width /maximum/:   30 yards
Fatalities:             0
Injuries:               0

Start Date:             05/17/2026
Start Time:             09:10 PM CDT
Start Location:         Rockwell City / Calhoun County / IA
Start Lat/Lon:          42.3953 / -94.6301

End Date:               05/17/2026
End Time:               09:10 PM CDT
End Location:           Rockwell City / Calhoun County / IA
End Lat/Lon:            42.3957 / -94.6266


.Emmetsburg Tornado - Sunday...

Rating:                 EF0
Estimated Peak Wind:    0 mph
Path Length /statute/:  0.79 miles
Path Width /maximum/:   25 yards
Fatalities:             0
Injuries:               0

Start Date:             05/17/2026
Start Time:             09:12 PM CDT
Start Location:         1 S Emmetsburg / Palo Alto County / IA
Start Lat/Lon:          43.0941 / -94.686

End Date:               05/17/2026
End Time:               09:14 PM CDT
End Location:           1 SSE Emmetsburg / Palo Alto County / IA
End Lat/Lon:            43.1027 / -94.6767


.Graettinger Tornado - Sunday...

Rating:                 EF0
Estimated Peak Wind:    75 mph
Path Length /statute/:  1.06 miles
Path Width /maximum/:   20 yards
Fatalities:             0
Injuries:               0

Start Date:             05/17/2026
Start Time:             09:13 PM CDT
Start Location:         1 S Graettinger / Palo Alto County / IA
Start Lat/Lon:          43.2274 / -94.7494

End Date:               05/17/2026
End Time:               09:14 PM CDT
End Location:           Graettinger / Palo Alto County / IA
End Lat/Lon:            43.2423 / -94.7447

Survey Summary:
Drone footage and photos shows narrow damage track across the
eastern side of Graettinger.


.Whittemore Tornado - Sunday...

Rating:                 EF0
Estimated Peak Wind:    85 mph
Path Length /statute/:  1.61 miles
Path Width /maximum/:   25 yards
Fatalities:             0
Injuries:               0

Start Date:             05/17/2026
Start Time:             09:17 PM CDT
Start Location:         Whittemore / Kossuth County / IA
Start Lat/Lon:          43.0681 / -94.4241

End Date:               05/17/2026
End Time:               09:18 PM CDT
End Location:           2 NE Whittemore / Kossuth County / IA
End Lat/Lon:            43.0838 / -94.4006


.Lone Rock Tornado - Sunday...

Rating:                 EF1
Estimated Peak Wind:    100 mph
Path Length /statute/:  0.74 miles
Path Width /maximum/:   30 yards
Fatalities:             0
Injuries:               0

Start Date:             05/17/2026
Start Time:             09:29 PM CDT
Start Location:         1 SSW Lone Rock / Kossuth County / IA
Start Lat/Lon:          43.2114 / -94.3315

End Date:               05/17/2026
End Time:               09:30 PM CDT
End Location:           Lone Rock / Kossuth County / IA
End Lat/Lon:            43.2207 / -94.3242


.Moorland Tornado - Sunday...

Rating:                 EF0
Estimated Peak Wind:    0 mph
Path Length /statute/:  4.68 miles
Path Width /maximum/:   50 yards
Fatalities:             0
Injuries:               0

Start Date:             05/17/2026
Start Time:             09:29 PM CDT
Start Location:         2 W Moorland / Webster County / IA
Start Lat/Lon:          42.4348 / -94.3454

End Date:               05/17/2026
End Time:               09:33 PM CDT
End Location:           2 ENE Moorland / Webster County / IA
End Lat/Lon:            42.4501 / -94.2563

Survey Summary:
Estimated tornado path via video, radar, damage, and tower
camera.


.Woden Tornado - Sunday...

Rating:                 EF1
Estimated Peak Wind:    95 mph
Path Length /statute/:  10.20 miles
Path Width /maximum/:   25 yards
Fatalities:             0
Injuries:               0

Start Date:             05/17/2026
Start Time:             09:44 PM CDT
Start Location:         3 N Wesley / Kossuth County / IA
Start Lat/Lon:          43.1427 / -93.9901

End Date:               05/17/2026
End Time:               09:51 PM CDT
End Location:           3 WNW Crystal Lake / Hancock County / IA
End Lat/Lon:            43.2425 / -93.8435


.Ventura Tornado - Sunday...

Rating:                 EF1
Estimated Peak Wind:    105 mph
Path Length /statute/:  0.24 miles
Path Width /maximum/:   25 yards
Fatalities:             0
Injuries:               0

Start Date:             05/17/2026
Start Time:             10:07 PM CDT
Start Location:         Ventura / Cerro Gordo County / IA
Start Lat/Lon:          43.1259 / -93.4621

End Date:               05/17/2026
End Time:               10:08 PM CDT
End Location:           Ventura / Cerro Gordo County / IA
End Lat/Lon:            43.1272 / -93.4576


.Joice Tornado - Sunday...

Rating:                 EF1
Estimated Peak Wind:    110 mph
Path Length /statute/:  9.25 miles
Path Width /maximum/:   25 yards
Fatalities:             0
Injuries:               0

Start Date:             05/17/2026
Start Time:             10:10 PM CDT
Start Location:         1 S Joice / Worth County / IA
Start Lat/Lon:          43.3441 / -93.4595

End Date:               05/17/2026
End Time:               10:21 PM CDT
End Location:           5 SW Northwood / Worth County / IA
End Lat/Lon:            43.4011 / -93.2977


.Plymouth Tornado - Sunday...

Rating:                 EF1
Estimated Peak Wind:    105 mph
Path Length /statute/:  6.97 miles
Path Width /maximum/:   40 yards
Fatalities:             0
Injuries:               0

Start Date:             05/17/2026
Start Time:             10:23 PM CDT
Start Location:         2 WSW Plymouth / Cerro Gordo County / IA
Start Lat/Lon:          43.232 / -93.1663

End Date:               05/17/2026
End Time:               10:29 PM CDT
End Location:           4 ENE Plymouth / Worth County / IA
End Lat/Lon:            43.2625 / -93.0351

Survey Summary:
Damage to trees and outbuildings.

..Mt Ayr Tornado - Monday...

Rating:                 EF0
Estimated Peak Wind:    80 mph
Path Length /statute/:  6.06 miles
Path Width /maximum/:   30 yards
Fatalities:             0
Injuries:               0

Start Date:             05/18/2026
Start Time:             06:54 PM CDT
Start Location:         1 ENE Maloy / Ringgold County / IA
Start Lat/Lon:          40.6812 / -94.3955

End Date:               05/18/2026
End Time:               07:01 PM CDT
End Location:           3 W Mount Ayr / Ringgold County / IA
End Lat/Lon:            40.7147 / -94.2992

Survey Summary:
Damage along path consistent of weak tornado. SRV Rotational
couplet evident at this time. Photo evidence of tornado provided
by Ringgold County Emergency Management.

&&

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.

$$