Alert archive / Iowa / Tornado Warnings in 2024
Tornado Warning 2, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this tornado warning at Apr 16, 2024, 1:36 PM CDT for Dakota County, Nebraska; Plymouth County, Woodbury County, Iowa; Union County, South Dakota. It was in force for 24 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Apr 16, 2024, 1:36 PM CDT (18:36 UTC)
- Expired
- Apr 16, 2024, 2:00 PM CDT
- In force
- 24 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Plymouth County, IA, Woodbury County, IA, Dakota County, NE, Union County, SD
The radar
The Sioux Falls radar (KFSD), 121 km from the middle of the area, began a volume at 18:36 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 16, 1:49 PM CDT | TSTM WND DMG | 6 Nnw Sioux City, IA | Horse lean-to destroyed and horse injured. Broken tree branches. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 16, 12:23 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 6.6 hours before the alert went out and 133 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 852 J/kg
- Mixed-layer CIN
- -86 J/kg
- Mixed-layer LCL
- 1959 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 70 m²/s²
- 0-3 km storm-relative helicity
- 211 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.0
The text
As transmitted.
179
WFUS53 KFSD 161836
TORFSD
IAC149-193-NEC043-SDC127-161900-
/O.NEW.KFSD.TO.W.0002.240416T1836Z-240416T1900Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Sioux Falls SD
136 PM CDT Tue Apr 16 2024
The National Weather Service in Sioux Falls has issued a
* Tornado Warning for...
Northwestern Woodbury County in west central Iowa...
Southwestern Plymouth County in northwestern Iowa...
Northwestern Dakota County in northeastern Nebraska...
Southeastern Union County in southeastern South Dakota...
* Until 200 PM CDT.
* At 136 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Jackson In Dakota County, or 8 miles west of Sioux
City, moving north at 25 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* This dangerous storm will be near...
Sioux City, North Sioux City, and Jefferson around 140 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4244 9667 4263 9660 4263 9638 4240 9649
TIME...MOT...LOC 1836Z 198DEG 22KT 4246 9655
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
SG1 follow-up statement
542
WWUS53 KFSD 161849
SVSFSD
Severe Weather Statement
National Weather Service Sioux Falls SD
149 PM CDT Tue Apr 16 2024
NEC043-161858-
/O.CAN.KFSD.TO.W.0002.000000T0000Z-240416T1900Z/
Dakota NE-
149 PM CDT Tue Apr 16 2024
...THE TORNADO WARNING FOR NORTHWESTERN DAKOTA COUNTY IS CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 700 PM CDT for northwestern
and west central Iowa...northeastern Nebraska...and southeastern
South Dakota.
&&
LAT...LON 4252 9654 4252 9657 4251 9659 4253 9664
4263 9660 4263 9638 4249 9645 4248 9650
TIME...MOT...LOC 1848Z 202DEG 24KT 4254 9651
$$
IAC149-193-SDC127-161900-
/O.CON.KFSD.TO.W.0002.000000T0000Z-240416T1900Z/
Woodbury IA-Plymouth IA-Union SD-
149 PM CDT Tue Apr 16 2024
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 200 PM CDT FOR
NORTHWESTERN WOODBURY...SOUTHWESTERN PLYMOUTH AND SOUTHEASTERN UNION
COUNTIES...
At 148 PM CDT, a severe thunderstorm capable of producing a tornado
was located over North Sioux City, or near Sioux City, moving
northeast at 30 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
Sioux City and Jefferson around 155 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4252 9654 4252 9657 4251 9659 4253 9664
4263 9660 4263 9638 4249 9645 4248 9650
TIME...MOT...LOC 1848Z 202DEG 24KT 4254 9651
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
SGThe office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 16, 2:56 AM CDT | Wind Advisory | FSD | Dakota | 16 hr |
| Apr 16, 1:46 PM CDT | Tornado Warning | FSD | Dakota | 29 min |
| Apr 16, 1:58 PM CDT | Tornado Warning | FSD | Plymouth, Sioux | 32 min |
| Apr 16, 2:15 PM CDT | Tornado Warning | FSD | Plymouth, Sioux | 30 min |
| Apr 16, 2:22 PM CDT | Tornado Warning | FSD | Sioux | 23 min |
| Apr 16, 2:38 PM CDT | Tornado Warning | FSD | Lyon, Sioux | 22 min |
| Apr 16, 2:49 PM CDT | Tornado Warning | FSD | Lyon, Sioux | 11 min |
| Apr 16, 2:59 PM CDT | Tornado Warning | FSD | Lyon, Osceola, Sioux | 31 min |
| Apr 16, 3:10 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 35 min |
| Apr 16, 4:07 PM CDT | Tornado Warning | FSD | Clay, Dickinson | 23 min |
| Apr 16, 3:46 AM CDT | High Wind Warning | FSD | Beadle | 74 min |
| Apr 16, 9:50 AM CDT | Severe Thunderstorm Warning | FSD | Clay, Turner, Yankton | 25 min |
Nearby
Tornado Warnings in Iowa, 2024Tornado Warnings in Nebraska, 2024Tornado Warnings in South Dakota, 2024Every tornado warning in 2024Tornadoes in 2024
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.