Alert archive / Iowa / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 52, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Jun 22, 2021, 6:30 PM CDT for Lucas County, Marion County, Warren County, Iowa. It was in force for 45 min. 3 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, 6:30 PM CDT (23:30 UTC)
- Expired
- Jun 22, 2021, 7:15 PM CDT
- In force
- 45 min
- Issued by
- NWS Des Moines, IA
- Area
- Storm-based polygon
- Hail
- 1.5 in
- Wind
- 60.0 mph
Counties Lucas County, IA, Marion County, IA, Warren County, IA
The radar
The Des Moines radar (KDMX), 73 km from the middle of the area, began a volume at 23:32 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, 6:30 PM CDT | HAIL 0.75 | Milo, IA | REPORT FROM MPING: DIME (0.75 IN.). |
| Jun 22, 6:30 PM CDT | HAIL 1 | 3 Ese Indianola, IA | REPORT FROM MPING: QUARTER (1.00 IN.). |
| Jun 22, 6:31 PM CDT | HAIL 1.5 | 3 Ese Indianola, IA | REPORT FROM MPING: PING PONG BALL (1.50 IN.). |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 11.5 hours before the alert went out and 245 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2027 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- -11 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
729
WUUS53 KDMX 222330
SVRDMX
IAC117-125-181-230015-
/O.NEW.KDMX.SV.W.0052.210622T2330Z-210623T0015Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Des Moines IA
630 PM CDT Tue Jun 22 2021
The National Weather Service in Des Moines has issued a
* Severe Thunderstorm Warning for...
Lucas County in south central Iowa...
Southwestern Marion County in south central Iowa...
Southeastern Warren County in south central Iowa...
* Until 715 PM CDT.
* At 629 PM CDT, a severe thunderstorm was located 9 miles southeast
of Indianola, moving southeast at 45 mph.
HAZARD...Ping pong ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect
wind damage to roofs, siding, and trees.
* Locations impacted include...
Chariton.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4115 9356 4132 9360 4140 9337 4124 9315
4098 9310 4090 9310 4090 9351
TIME...MOT...LOC 2329Z 332DEG 39KT 4123 9349
HAIL...1.50IN
WIND...60MPH
$$
Krull2 follow-up statements
902
WWUS53 KDMX 222352
SVSDMX
Severe Weather Statement
National Weather Service Des Moines IA
652 PM CDT Tue Jun 22 2021
IAC117-125-181-230015-
/O.CON.KDMX.SV.W.0052.000000T0000Z-210623T0015Z/
Lucas IA-Marion IA-Warren IA-
652 PM CDT Tue Jun 22 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT
FOR CENTRAL LUCAS...SOUTHWESTERN MARION AND SOUTHEASTERN WARREN
COUNTIES...
At 652 PM CDT, a severe thunderstorm was located 8 miles southwest of
Melcher-Dallas, or 10 miles north of Chariton, moving southeast at 35
mph.
HAZARD...Ping pong ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
Locations impacted include...
Chariton, Melcher-Dallas, Russell, Lacona, Williamson, Red Haw Lake
State Park and Chariton Municipal Airport.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4125 9344 4132 9331 4121 9315 4098 9310
4096 9313 4090 9338
TIME...MOT...LOC 2352Z 324DEG 29KT 4116 9337
HAIL...1.50IN
WIND...60MPH
$$
Krull866
WWUS53 KDMX 230011
SVSDMX
Severe Weather Statement
National Weather Service Des Moines IA
711 PM CDT Tue Jun 22 2021
IAC117-125-181-230021-
/O.EXP.KDMX.SV.W.0052.000000T0000Z-210623T0015Z/
Lucas IA-Marion IA-Warren IA-
711 PM CDT Tue Jun 22 2021
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL LUCAS...SOUTHWESTERN
MARION AND SOUTHEASTERN WARREN COUNTIES WILL EXPIRE AT 715 PM CDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However half inch
hail, gusty winds and heavy rain are still possible with this
thunderstorm.
LAT...LON 4125 9344 4132 9331 4121 9315 4098 9310
4096 9313 4090 9338
TIME...MOT...LOC 0011Z 324DEG 33KT 4113 9323
$$
KrullThe office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 22, 4:59 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Polk | 46 min |
| Jun 22, 5:22 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Sac | 38 min |
| Jun 22, 5:30 PM CDT | Severe Thunderstorm Warning | DMX | Polk | 45 min |
| Jun 22, 5:50 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun | 40 min |
| Jun 22, 5:52 PM CDT | Special Weather Statement | DMX | Poweshiek | 23 min |
| Jun 22, 5:58 PM CDT | Severe Thunderstorm Warning | DMX | Polk, Warren | 47 min |
| Jun 22, 6:09 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Calhoun, Carroll, Greene, Webster | 51 min |
| Jun 22, 6:33 PM CDT | Severe Thunderstorm Warning | DMX | Carroll, Greene | 42 min |
| Jun 22, 6:42 PM CDT | Special Weather Statement | DMX | Tama | 63 min |
| Jun 22, 6:49 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Guthrie | 41 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.