Alert archive / Iowa / Tornado Warnings in 2024
Tornado Warning 4, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this tornado warning at Apr 16, 2024, 1:58 PM CDT for Plymouth County, Sioux County, Iowa. It was in force for 32 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, 1:58 PM CDT (18:58 UTC)
- Expired
- Apr 16, 2024, 2:30 PM CDT
- In force
- 32 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Tornado
- Observed
- Hail
- 0.75 in
Counties Plymouth County, IA, Sioux County, IA
The radar
The Sioux Falls radar (KFSD), 93 km from the middle of the area, began a volume at 19:03 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, 2:11 PM CDT | TORNADO | 2 N Struble, IA | Location estimated as viewed by emergency manager. |
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, 7.0 hours before the alert went out and 171 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.
351
WFUS53 KFSD 161858
TORFSD
IAC149-167-161930-
/O.NEW.KFSD.TO.W.0004.240416T1858Z-240416T1930Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Sioux Falls SD
158 PM CDT Tue Apr 16 2024
The National Weather Service in Sioux Falls has issued a
* Tornado Warning for...
South central Sioux County in northwestern Iowa...
North central Plymouth County in northwestern Iowa...
* Until 230 PM CDT.
* At 158 PM CDT, a confirmed tornado was located near Le Mars, moving
north at 25 mph.
HAZARD...Damaging tornado.
SOURCE...Weather spotters confirmed tornado.
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.
* The tornado will be near...
Maurice and Struble around 205 PM CDT.
Other locations impacted by this tornadic thunderstorm include
Brunsville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. 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 4276 9614 4278 9632 4298 9628 4298 9607
TIME...MOT...LOC 1858Z 197DEG 22KT 4281 9625
TORNADO...OBSERVED
MAX HAIL SIZE...<.75 IN
$$
SG2 follow-up statements
461
WWUS53 KFSD 161904
SVSFSD
Severe Weather Statement
National Weather Service Sioux Falls SD
204 PM CDT Tue Apr 16 2024
IAC149-167-161930-
/O.CON.KFSD.TO.W.0004.000000T0000Z-240416T1930Z/
Sioux IA-Plymouth IA-
204 PM CDT Tue Apr 16 2024
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 230 PM CDT FOR SOUTH
CENTRAL SIOUX AND NORTH CENTRAL PLYMOUTH COUNTIES...
At 204 PM CDT, a confirmed tornado was located over Struble, or near
Le Mars, moving north at 30 mph.
HAZARD...Damaging tornado.
SOURCE...Weather spotters confirmed tornado.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This tornado will be near...
Maurice around 210 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
&&
LAT...LON 4280 9613 4283 9631 4298 9628 4298 9607
TIME...MOT...LOC 1904Z 199DEG 28KT 4288 9622
TORNADO...OBSERVED
MAX HAIL SIZE...<.75 IN
$$
SG865
WWUS53 KFSD 161910
SVSFSD
Severe Weather Statement
National Weather Service Sioux Falls SD
210 PM CDT Tue Apr 16 2024
IAC149-167-161930-
/O.CON.KFSD.TO.W.0004.000000T0000Z-240416T1930Z/
Sioux IA-Plymouth IA-
210 PM CDT Tue Apr 16 2024
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 230 PM CDT FOR SOUTH
CENTRAL SIOUX AND NORTH CENTRAL PLYMOUTH COUNTIES...
At 210 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Struble, or 9 miles southwest of Orange 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...
Maurice around 215 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 4283 9613 4289 9630 4298 9628 4298 9607
TIME...MOT...LOC 1910Z 206DEG 25KT 4292 9620
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 | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 16 hr |
| Apr 16, 1:36 PM CDT | Tornado Warning | FSD | Plymouth, Woodbury | 24 min |
| Apr 16, 1:46 PM CDT | Tornado Warning | FSD | Plymouth, Woodbury | 29 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 |
Nearby
Tornado Warnings in Iowa, 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.