Alert archive / Iowa / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 29, NWS Quad Cities, IA
NWS Quad Cities, IA issued this severe thunderstorm warning at Jun 24, 2021, 11:34 PM CDT for Van Buren County, Iowa. It was in force for 41 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, 11:34 PM CDT (04:34 UTC)
- Expired
- Jun 25, 2021, 12:15 AM CDT
- In force
- 41 min
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Van Buren County, IA
The radar
The Quad Cities radar (KDVN), 154 km from the middle of the area, began a volume at 04:37 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 nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 4.6 hours before the alert went out and 160 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.
544 WUUS53 KDVN 250434 SVRDVN IAC177-250515- /O.NEW.KDVN.SV.W.0029.210625T0434Z-210625T0515Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Quad Cities IA/IL 1134 PM CDT Thu Jun 24 2021 The National Weather Service in the Quad Cities has issued a * Severe Thunderstorm Warning for... Van Buren County in southeastern Iowa... * Until 1215 AM CDT. * At 1133 PM CDT, severe thunderstorms were located along a line extending from 8 miles west of Leando to near Cantril, moving northeast at 20 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Keosauqua, Birmingham, Milton, Cantril, Douds, Leando, Mount Sterling, Van Buren County Fairgrounds, Keosauqua Airport, Mount Zion, Selma, Lebanon, Lake Sugema Campground, Lacey Keosauqua State Park and Kilbourn. PRECAUTIONARY/PREPAREDNESS ACTIONS... Intense thunderstorm lines can produce brief tornadoes and widespread significant wind damage. Although a tornado is not immediately likely, it is best to move to an interior room on the lowest floor of a building. These storms may cause serious injury and significant property damage. Torrential rainfall is occurring with these storms, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4090 9218 4090 9185 4061 9188 4060 9218 TIME...MOT...LOC 0433Z 224DEG 17KT 4081 9224 4060 9210 TORNADO...POSSIBLE HAIL...0.75IN WIND...60MPH $$ McClure
3 follow-up statements
095 WWUS53 KDVN 250446 SVSDVN Severe Weather Statement National Weather Service Quad Cities IA/IL 1146 PM CDT Thu Jun 24 2021 IAC177-250515- /O.CON.KDVN.SV.W.0029.000000T0000Z-210625T0515Z/ Van Buren IA- 1146 PM CDT Thu Jun 24 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 AM CDT FOR VAN BUREN COUNTY... At 1146 PM CDT, severe thunderstorms were located along a line extending from near Douds to Cantril, moving east at 20 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Keosauqua, Birmingham, Milton, Cantril, Douds, Leando, Mount Sterling, Van Buren County Fairgrounds, Keosauqua Airport, Mount Zion, Selma, Lebanon, Lake Sugema Campground, Lacey Keosauqua State Park and Kilbourn. PRECAUTIONARY/PREPAREDNESS ACTIONS... Intense thunderstorm lines can produce brief tornadoes and widespread significant wind damage. Although a tornado is not immediately likely, it is best to move to an interior room on the lowest floor of a building. These storms may cause serious injury and significant property damage. Torrential rainfall is occurring with these storms, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4090 9218 4090 9185 4061 9188 4060 9218 TIME...MOT...LOC 0446Z 270DEG 17KT 4085 9218 4064 9204 TORNADO...POSSIBLE HAIL...0.75IN WIND...60MPH $$ McClure
590 WWUS53 KDVN 250459 SVSDVN Severe Weather Statement National Weather Service Quad Cities IA/IL 1159 PM CDT Thu Jun 24 2021 IAC177-250515- /O.CON.KDVN.SV.W.0029.000000T0000Z-210625T0515Z/ Van Buren IA- 1159 PM CDT Thu Jun 24 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 AM CDT FOR CENTRAL VAN BUREN COUNTY... At 1158 PM CDT, severe thunderstorms were located along a line extending from near Libertyville to near Bentonsport/Vernon, moving northeast at 25 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Keosauqua, Birmingham, Douds, Leando, Lebanon, Van Buren County Fairgrounds, Lake Sugema Campground, Keosauqua Airport, Lacey Keosauqua State Park, Mount Zion, Kilbourn and Selma. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a sturdy building. Torrential rainfall is occurring with these storms, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4090 9218 4090 9185 4061 9188 4072 9208 TIME...MOT...LOC 0458Z 240DEG 21KT 4092 9210 4067 9188 TORNADO...POSSIBLE HAIL...<.75IN WIND...60MPH $$ McClure
978
WWUS53 KDVN 250507
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
1207 AM CDT Fri Jun 25 2021
IAC177-250516-
/O.EXP.KDVN.SV.W.0029.000000T0000Z-210625T0515Z/
Van Buren IA-
1207 AM CDT Fri Jun 25 2021
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL VAN BUREN COUNTY WILL
EXPIRE AT 1215 AM CDT...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds and heavy rain are still possible with these thunderstorms.
LAT...LON 4090 9218 4090 9185 4061 9188 4072 9208
TIME...MOT...LOC 0506Z 270DEG 17KT 4095 9207 4070 9185
$$
McClureThe office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 24, 7:23 PM CDT | Severe Thunderstorm Warning | DVN | Jefferson, Van Buren | 40 min |
| Jun 24, 8:13 PM CDT | Special Weather Statement | DVN | Jefferson | 47 min |
| Jun 24, 8:42 PM CDT | Flash Flood Warning | DVN | Jefferson, Van Buren | 6 hr |
| Jun 24, 11:44 PM CDT | Severe Thunderstorm Warning | DVN | Lee | 46 min |
| Jun 25, 2:49 AM CDT | Areal Flood Warning | DVN | Jefferson, Van Buren | 17 hr |
| Jun 25, 4:07 AM CDT | River Flood Warning | DVN | Van Buren | 10 hr |
| Jun 25, 4:07 AM CDT | River Flood Warning | DVN | Lee | 62 hr |
| Jun 25, 5:05 AM CDT | Special Weather Statement | DVN | Cedar | 40 min |
| Jun 25, 8:07 AM CDT | Areal Flood Warning | DVN | Van Buren | 26 hr |
| Jun 25, 2:12 PM CDT | Special Weather Statement | DVN | Dubuque | 33 min |
| Jun 25, 2:48 PM CDT | Special Weather Statement | DVN | Delaware, Dubuque | 57 min |
| Jun 25, 4:26 PM CDT | Special Weather Statement | DVN | Delaware, Dubuque | 49 min |
| Jun 25, 6:18 PM CDT | Special Weather Statement | DVN | Benton, Jackson, Jones, Linn | 42 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.