Alert archive / Iowa / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 29, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 22, 2021, 6:09 PM CDT for 4 counties in Iowa. It was in force for 36 min. 7 reports 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
- Jun 22, 2021, 6:09 PM CDT (23:09 UTC)
- Expired
- Jun 22, 2021, 6:45 PM CDT
- In force
- 36 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
Counties Cherokee County, IA, Ida County, IA, Plymouth County, IA, Woodbury County, IA
The radar
The Sioux Falls radar (KFSD), 116 km from the middle of the area, began a volume at 23:10 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 |
|---|---|---|---|
| Jun 22, 6:20 PM CDT | TSTM WND DMG | 8 S Oyens, IA | LARGE PLAYSET DISPLACED AND SIDING TO HOUSE DAMAGED BY WIND DRIVEN HAIL. WINDS ESTIMATED 60 MPH. |
| Jun 22, 6:23 PM CDT | TSTM WND DMG | 7 Nnw Kingsley, IA | 1 FOOT DIAMETER TREE SNAPPED. |
| Jun 22, 6:34 PM CDT | FUNNEL CLOUD | 7 N Kingsley, IA | PUBLIC REPORT OF A FUNNEL CLOUD. |
| Jun 22, 6:34 PM CDT | HAIL 1 | 3 Nne Kingsley, IA | HAIL OF AT LEAST QUARTER SIZE REPORTED. CROPS SEVERELY DAMAGED BY HAIL. |
| Jun 22, 6:38 PM CDT | HAIL 1 | 4 N Pierson, IA | SIGNIFICANT HAIL DAMAGE TO CROPS. |
| Jun 22, 6:48 PM CDT | HAIL 1.75 | Pierson, IA | TRAINED SPOTTER REPORT OF GOLF BALL SIZE HAIL. |
| Jun 22, 6:55 PM CDT | HAIL 1.25 | 4 N Correctionville, IA | PUBLIC REPORT OF HALF DOLLAR SIZE HAIL. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 11.2 hours before the alert went out and 156 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1910 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 259 m²/s²
- 0-3 km storm-relative helicity
- 324 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
730
WUUS53 KFSD 222309
SVRFSD
IAC035-093-149-193-222345-
/O.NEW.KFSD.SV.W.0029.210622T2309Z-210622T2345Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Sioux Falls SD
609 PM CDT Tue Jun 22 2021
The National Weather Service in Sioux Falls has issued a
* Severe Thunderstorm Warning for...
Southwestern Cherokee County in northwestern Iowa...
Northeastern Woodbury County in west central Iowa...
Eastern Plymouth County in northwestern Iowa...
Northwestern Ida County in west central Iowa...
* Until 645 PM CDT.
* At 609 PM CDT, a severe thunderstorm was located near Remsen, or 8
miles southeast of Le Mars, moving southeast at 30 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* This severe thunderstorm will be near...
Kingsley around 625 PM CDT.
Pierson around 635 PM CDT.
Correctionville, Quimby and Washta around 645 PM CDT.
Other locations impacted by this severe thunderstorm include Oyens.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.
&&
LAT...LON 4273 9618 4276 9618 4284 9604 4268 9559
4245 9579
TIME...MOT...LOC 2309Z 303DEG 28KT 4273 9602
HAIL...1.25IN
WIND...60MPH
$$
BP1 follow-up statement
066
WWUS53 KFSD 222340
SVSFSD
Severe Weather Statement
National Weather Service Sioux Falls SD
640 PM CDT Tue Jun 22 2021
IAC035-093-149-193-222349-
/O.EXP.KFSD.SV.W.0029.000000T0000Z-210622T2345Z/
Cherokee IA-Woodbury IA-Plymouth IA-Ida IA-
640 PM CDT Tue Jun 22 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN CHEROKEE...
NORTHEASTERN WOODBURY...EASTERN PLYMOUTH AND NORTHWESTERN IDA
COUNTIES WILL EXPIRE AT 645 PM CDT...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire. However small hail
is still possible with this thunderstorm.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Sioux Falls.
Remember, a Severe Thunderstorm Warning still remains in effect for
portions of northwest Iowa.
LAT...LON 4273 9618 4276 9618 4284 9604 4268 9559
4245 9579
TIME...MOT...LOC 2339Z 303DEG 28KT 4261 9576
$$
BPThe office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 22, 6:24 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Ida, Plymouth, Woodbury | 36 min |
| Jun 22, 6:52 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Ida, Plymouth, Woodbury | 24 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 2021Every severe thunderstorm warning in 2021
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.