Alert archive / Iowa / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 13, NWS Quad Cities, IA
NWS Quad Cities, IA issued this severe thunderstorm warning at Jun 19, 2021, 12:27 AM CDT for Des Moines County, Louisa County, Iowa. It was in force for 27 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
- Jun 19, 2021, 12:27 AM CDT (05:27 UTC)
- Expired
- Jun 19, 2021, 12:54 AM CDT
- In force
- 27 min
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
- Hail
- 1.5 in
- Wind
- 60.0 mph
Counties Des Moines County, IA, Louisa County, IA
The radar
The Quad Cities radar (KDVN), 76 km from the middle of the area, began a volume at 05:28 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 19, 12:45 AM CDT | TSTM WND DMG | 2 Wsw Amber, IA | LARGE TREE BLOCKING THE ROAD AT THE INTERSECTION OF 46TH ST. AND L AVE. TIME ESTIMATED BASED ON RADAR. |
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 |
|---|---|---|---|
| Jun 18, 10:08 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 5.5 hours before the alert went out and 81 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
- 4 J/kg
- Mixed-layer CIN
- -335 J/kg
- Mixed-layer LCL
- 2572 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- -15 m²/s²
- 0-3 km storm-relative helicity
- 55 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
095
WUUS53 KDVN 190527
SVRDVN
IAC057-115-190615-
/O.NEW.KDVN.SV.W.0013.210619T0527Z-210619T0615Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Quad Cities IA/IL
1227 AM CDT Sat Jun 19 2021
The National Weather Service in the Quad Cities has issued a
* Severe Thunderstorm Warning for...
Des Moines County in southeastern Iowa...
Southern Louisa County in southeastern Iowa...
* Until 115 AM CDT.
* At 1226 AM CDT, a severe thunderstorm was located near Mount Union,
or 11 miles northeast of Mount Pleasant, moving east at 30 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.
* This severe thunderstorm will be near...
Morning Sun around 1235 AM CDT.
Mediapolis around 1245 AM CDT.
Other locations in the path of this severe thunderstorm include
Oakville and Oquawka.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
sturdy building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4093 9137 4116 9137 4116 9139 4121 9137
4121 9107 4116 9104 4117 9101 4116 9099
4110 9095 4103 9094 4098 9096 4096 9095
4093 9096 4090 9101 4086 9105
TIME...MOT...LOC 0526Z 279DEG 27KT 4103 9134
HAIL...1.50IN
WIND...60MPH
$$
Ervin4 follow-up statements
787
WWUS53 KDVN 190532
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
1232 AM CDT Sat Jun 19 2021
IAC057-115-190615-
/O.CON.KDVN.SV.W.0013.000000T0000Z-210619T0615Z/
Des Moines IA-Louisa IA-
1232 AM CDT Sat Jun 19 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 AM CDT
FOR NORTHERN DES MOINES AND SOUTHEASTERN LOUISA COUNTIES...
At 1232 AM CDT, a severe thunderstorm was located near Morning Sun,
or 11 miles southwest of Wapello, moving east at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
This severe storm will be near...
Mediapolis around 1245 AM CDT.
Other locations in the path of this severe thunderstorm include
Oakville and Oquawka.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4093 9137 4110 9136 4115 9136 4120 9134
4121 9107 4116 9104 4117 9101 4116 9099
4110 9095 4103 9094 4098 9096 4096 9095
4093 9096 4090 9101 4088 9107
TIME...MOT...LOC 0532Z 279DEG 27KT 4102 9128
HAIL...1.00IN
WIND...60MPH
$$
Ervin955
WWUS53 KDVN 190538
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
1238 AM CDT Sat Jun 19 2021
IAC057-115-190615-
/O.CON.KDVN.SV.W.0013.000000T0000Z-210619T0615Z/
Des Moines IA-Louisa IA-
1238 AM CDT Sat Jun 19 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 AM CDT
FOR NORTHERN DES MOINES AND SOUTHEASTERN LOUISA COUNTIES...
At 1238 AM CDT, a severe thunderstorm was located over Mediapolis, or
11 miles south of Wapello, moving east at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Oakville and Oquawka.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4093 9137 4110 9136 4115 9136 4120 9134
4121 9107 4116 9104 4117 9101 4116 9099
4110 9095 4103 9094 4098 9096 4096 9095
4093 9096 4090 9101 4088 9107
TIME...MOT...LOC 0538Z 279DEG 27KT 4101 9122
HAIL...1.00IN
WIND...60MPH
$$
Ervin091
WWUS53 KDVN 190546
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
1246 AM CDT Sat Jun 19 2021
IAC057-115-190615-
/O.CON.KDVN.SV.W.0013.000000T0000Z-210619T0615Z/
Des Moines IA-Louisa IA-
1246 AM CDT Sat Jun 19 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 AM CDT
FOR NORTHEASTERN DES MOINES AND SOUTHEASTERN LOUISA COUNTIES...
At 1245 AM CDT, a severe thunderstorm was located near Mediapolis, or
8 miles northwest of Oquawka, moving east at 35 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Oquawka.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4091 9120 4110 9136 4115 9136 4120 9134
4121 9107 4116 9104 4117 9101 4116 9099
4110 9095 4103 9094 4098 9096 4096 9095
4093 9096 4090 9101 4088 9107
TIME...MOT...LOC 0545Z 274DEG 32KT 4102 9108
HAIL...1.00IN
WIND...60MPH
$$
Ervin742
WWUS53 KDVN 190554
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
1254 AM CDT Sat Jun 19 2021
IAC057-115-190604-
/O.CAN.KDVN.SV.W.0013.000000T0000Z-210619T0615Z/
Des Moines IA-Louisa IA-
1254 AM CDT Sat Jun 19 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN DES MOINES AND
SOUTHEASTERN LOUISA COUNTIES IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been cancelled. However heavy rain is still possible with this
thunderstorm.
A Severe Thunderstorm Watch remains in effect until 500 AM CDT for
northwestern and west central Illinois...and southeastern Iowa.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
the Quad Cities.
LAT...LON 4091 9120 4110 9136 4115 9136 4120 9134
4121 9107 4116 9104 4117 9101 4116 9099
4110 9095 4103 9094 4098 9096 4096 9095
4093 9096 4090 9101 4088 9107
TIME...MOT...LOC 0552Z 279DEG 27KT 4101 9099
$$
ErvinThe office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 10:17 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Louisa, Washington | 58 min |
| Jun 18, 11:03 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines | 27 min |
| Jun 18, 11:21 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Jefferson | 39 min |
| Jun 18, 11:29 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Louisa | 46 min |
| Jun 18, 11:47 PM CDT | Severe Thunderstorm Warning | DVN | Louisa, Washington | 29 min |
| Jun 19, 12:02 AM CDT | Severe Thunderstorm Warning | DVN | Keokuk, Washington | 43 min |
| Jun 19, 12:12 AM CDT | Severe Thunderstorm Warning | DVN | Jefferson, Keokuk, Van Buren, Washington | 48 min |
| Jun 19, 1:08 AM CDT | Severe Thunderstorm Warning | DVN | Lee, Van Buren | 49 min |
| Jun 19, 1:28 AM CDT | Special Weather Statement | DVN | Louisa | 2 hr |
| Jun 19, 2:01 AM CDT | Special Weather Statement | DVN | Lee, Van Buren | 59 min |
| Jun 19, 4:33 AM CDT | Severe Thunderstorm Warning | DVN | Lee, Van Buren | 57 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.