Alert archive / Iowa / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 55, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Jun 24, 2021, 7:03 PM CDT for Wapello County, Iowa. It was in force for 42 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 24, 2021, 7:03 PM CDT (00:03 UTC)
- Expired
- Jun 24, 2021, 7:45 PM CDT
- In force
- 42 min
- Issued by
- NWS Des Moines, IA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Wapello County, IA
The radar
The Des Moines radar (KDMX), 143 km from the middle of the area, began a volume at 00:03 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 24, 6:33 PM CDT | Tornado Watch | SPC | 3 hr |
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 0.1 hours before the alert went out and 167 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
- 112 J/kg
- Mixed-layer CIN
- -93 J/kg
- Mixed-layer LCL
- 817 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 151 m²/s²
- 0-3 km storm-relative helicity
- 230 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.4
The text
As transmitted.
173
WUUS53 KDMX 250003
SVRDMX
IAC179-250045-
/O.NEW.KDMX.SV.W.0055.210625T0003Z-210625T0045Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Des Moines IA
703 PM CDT Thu Jun 24 2021
The National Weather Service in Des Moines has issued a
* Severe Thunderstorm Warning for...
Wapello County in southeastern Iowa...
* Until 745 PM CDT.
* At 702 PM CDT, a severe thunderstorm was located near Ottumwa
Industrial Airport, or near Ottumwa, moving east at 25 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated. At 700pm at 58 mph wind gust reported at
the Ottumwa Airport.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* This severe thunderstorm will remain over mainly rural areas of
Wapello County, including the following locations... Eldon, Agency
and Kirkville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1000 PM CDT for southeastern
Iowa.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4090 9224 4096 9255 4116 9250 4116 9218
4090 9218
TIME...MOT...LOC 0002Z 270DEG 23KT 4107 9240
HAIL...1.00IN
WIND...60MPH
$$
Fowle3 follow-up statements
295
WWUS53 KDMX 250013
SVSDMX
Severe Weather Statement
National Weather Service Des Moines IA
713 PM CDT Thu Jun 24 2021
IAC179-250045-
/O.CON.KDMX.SV.W.0055.000000T0000Z-210625T0045Z/
Wapello IA-
713 PM CDT Thu Jun 24 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR EASTERN WAPELLO COUNTY...
At 712 PM CDT, a severe thunderstorm was located near Ottumwa, moving
east at 35 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Ottumwa, Eldon and Agency.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1000 PM CDT for southeastern
Iowa.
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4094 9246 4104 9240 4116 9240 4116 9218
4090 9218 4090 9224
TIME...MOT...LOC 0012Z 279DEG 28KT 4104 9230
HAIL...0.75IN
WIND...60MPH
$$
Fowle307
WWUS53 KDMX 250029
SVSDMX
Severe Weather Statement
National Weather Service Des Moines IA
729 PM CDT Thu Jun 24 2021
IAC179-250045-
/O.CON.KDMX.SV.W.0055.000000T0000Z-210625T0045Z/
Wapello IA-
729 PM CDT Thu Jun 24 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR EASTERN WAPELLO COUNTY...
At 729 PM CDT, a severe thunderstorm was located over Batavia, or 11
miles west of Fairfield, moving east at 45 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Eldon and Agency.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1000 PM CDT for southeastern
Iowa.
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4094 9246 4105 9224 4116 9223 4116 9218
4090 9218 4090 9224
TIME...MOT...LOC 0029Z 274DEG 41KT 4098 9218
HAIL...0.75IN
WIND...60MPH
$$
Fowle052
WWUS53 KDMX 250039
SVSDMX
Severe Weather Statement
National Weather Service Des Moines IA
739 PM CDT Thu Jun 24 2021
IAC179-250049-
/O.EXP.KDMX.SV.W.0055.000000T0000Z-210625T0045Z/
Wapello IA-
739 PM CDT Thu Jun 24 2021
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN WAPELLO COUNTY WILL
EXPIRE AT 745 PM CDT...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire. However heavy rain is still possible with this
thunderstorm.
A Tornado Watch remains in effect until 1000 PM CDT for southeastern
Iowa.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Des Moines .
LAT...LON 4094 9246 4105 9224 4116 9223 4116 9218
4090 9218 4090 9224
TIME...MOT...LOC 0039Z 270DEG 23KT 4098 9211
$$
FowleThe office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 24, 8:15 PM CDT | Flash Flood Warning | DMX | Davis, Wapello | 6 hr |
| Jun 24, 9:21 PM CDT | Flash Flood Warning | DMX | Appanoose, Lucas, Monroe, Wayne | 5 hr |
| Jun 24, 11:20 PM CDT | Severe Thunderstorm Warning | DMX | Davis | 25 min |
| Jun 25, 2:08 AM CDT | Areal Flood Warning | DMX | Davis, Wapello | 12 hr |
| Jun 25, 2:15 AM CDT | Areal Flood Warning | DMX | Appanoose, Lucas, Monroe, Wayne | 12 hr |
| Jun 25, 2:24 PM CDT | Flash Flood Watch | DMX | Appanoose, Davis, Decatur, Lucas, Monroe, Ringgold and 3 more | 17 hr |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.