Alert archive / Iowa / Tornado Warnings in 2021
Tornado Warning 11, NWS Quad Cities, IA
NWS Quad Cities, IA issued this tornado warning at Jul 14, 2021, 7:43 PM CDT for Buchanan County, Delaware County, Iowa. It was in force for 32 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
- Jul 14, 2021, 7:43 PM CDT (00:43 UTC)
- Expired
- Jul 14, 2021, 8:15 PM CDT
- In force
- 32 min
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.0 in
Counties Buchanan County, IA, Delaware County, IA
The radar
The Quad Cities radar (KDVN), 122 km from the middle of the area, began a volume at 00:45 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 |
|---|---|---|---|
| Jul 14, 7:52 PM CDT | TORNADO | 3 Ssw Manchester Airpor, IA | TORNADO REPORTED ON THE GROUND SOUTH OF HIGHWAY 20 SOUTHWEST OF MANCHESTER. |
| Jul 14, 7:53 PM CDT | TORNADO | 1 Sw Manchester, IA | DELAWARE COUNTY EMA RELAYED LIKELY TORNADO DAMAGE REPORT OF A DAMAGED CONVENIENCE STORE AND POWER LINES DOWN ON SOUTHWEST SIDE OF MANCHESTER. |
| Jul 14, 7:58 PM CDT | TORNADO | Manchester, IA | SPOTTERS REPORTING TWO SEPARATE TORNADOES, ONE ABOUT TO CROSS HIGHWAY 13, NORTH OF HIGHWAY 20 NEAR MANCHESTER AND THE OTHER ABOUT 3 MILES WEST OF MANCHESTER. |
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 |
|---|---|---|---|
| Jul 14, 2:35 PM CDT | Tornado Watch | SPC | 8 hr |
| Jul 14, 6:13 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 0.7 hours before the alert went out and 126 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
- 2569 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 832 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 253 m²/s²
- 0-3 km storm-relative helicity
- 346 m²/s²
- Significant tornado parameter
- 3.2
- Supercell composite
- 23.4
The text
As transmitted.
899
WFUS53 KDVN 150043 RRA
TORDVN
IAC019-055-150115-
/O.NEW.KDVN.TO.W.0011.210715T0043Z-210715T0115Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Quad Cities IA/IL
743 PM CDT Wed Jul 14 2021
The National Weather Service in the Quad Cities has issued a
* Tornado Warning for...
East central Buchanan County in northeastern Iowa...
Northwestern Delaware County in northeastern Iowa...
* Until 815 PM CDT.
* At 743 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Masonville, or 7 miles west of Manchester, moving
east at 25 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* This dangerous storm will be near...
Manchester around 800 PM CDT.
Other locations in the path of this tornadic thunderstorm include
Delhi, Delaware and Oneida.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4239 9166 4253 9167 4261 9130 4241 9127
TIME...MOT...LOC 0043Z 264DEG 22KT 4245 9160
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
DC5 follow-up statements
824
WWUS53 KDVN 150050
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
750 PM CDT Wed Jul 14 2021
IAC019-055-150115-
/O.CON.KDVN.TO.W.0011.000000T0000Z-210715T0115Z/
Buchanan IA-Delaware IA-
750 PM CDT Wed Jul 14 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR EAST
CENTRAL BUCHANAN AND NORTHWESTERN DELAWARE COUNTIES...
At 750 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Masonville, or near Manchester, moving east at 25
mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
Manchester around 800 PM CDT.
Other locations in the path of this tornadic thunderstorm include
Delhi, Delaware and Oneida.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4239 9166 4253 9167 4261 9130 4241 9127
TIME...MOT...LOC 0050Z 264DEG 22KT 4245 9154
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
DC728
WWUS53 KDVN 150054
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
754 PM CDT Wed Jul 14 2021
IAC019-055-150115-
/O.CON.KDVN.TO.W.0011.000000T0000Z-210715T0115Z/
Buchanan IA-Delaware IA-
754 PM CDT Wed Jul 14 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR EAST
CENTRAL BUCHANAN AND NORTHWESTERN DELAWARE COUNTIES...
At 753 PM CDT, a confirmed tornado was located near Manchester,
south of Highway 20 moving east at 25 mph.
HAZARD...Damaging tornado and quarter size hail.
SOURCE...Law enforcement confirmed tornado.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This tornado will be near...
Manchester around 800 PM CDT.
Other locations in the path of this tornadic thunderstorm include
Delhi, Delaware and Oneida.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4239 9166 4253 9167 4261 9130 4241 9127
TIME...MOT...LOC 0053Z 264DEG 22KT 4245 9152
TORNADO...OBSERVED
HAIL...1.00IN
$$
DC724
WWUS53 KDVN 150058
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
758 PM CDT Wed Jul 14 2021
IAC019-150107-
/O.CAN.KDVN.TO.W.0011.000000T0000Z-210715T0115Z/
Buchanan IA-
758 PM CDT Wed Jul 14 2021
...THE TORNADO WARNING FOR EAST CENTRAL BUCHANAN COUNTY IS
CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until midnight CDT for northeastern
Iowa.
LAT...LON 4243 9153 4252 9156 4261 9130 4245 9128
TIME...MOT...LOC 0057Z 248DEG 26KT 4248 9146
$$
IAC055-150115-
/O.CON.KDVN.TO.W.0011.000000T0000Z-210715T0115Z/
Delaware IA-
758 PM CDT Wed Jul 14 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR CENTRAL
DELAWARE COUNTY...
At 757 PM CDT, a confirmed tornado was located over Manchester,
moving east at 30 mph. A second tornado was also on the ground near
the Manchester Airport.
HAZARD...Damaging tornado and quarter size hail.
SOURCE...Law enforcement confirmed tornado.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This tornado will be near...
Delaware and Oneida around 810 PM CDT.
Other locations in the path of this tornadic thunderstorm include
Greeley.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4243 9153 4252 9156 4261 9130 4245 9128
TIME...MOT...LOC 0057Z 248DEG 26KT 4248 9146
TORNADO...OBSERVED
HAIL...1.00IN
$$
DC340
WWUS53 KDVN 150103
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
803 PM CDT Wed Jul 14 2021
IAC055-150115-
/O.CON.KDVN.TO.W.0011.000000T0000Z-210715T0115Z/
Delaware IA-
803 PM CDT Wed Jul 14 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR CENTRAL
DELAWARE COUNTY...
At 803 PM CDT, a confirmed tornado was located over Manchester,
moving northeast at 20 mph.
HAZARD...Damaging tornado and quarter size hail.
SOURCE...Law enforcement confirmed tornado.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This tornado will be near...
Delaware around 810 PM CDT.
Oneida around 815 PM CDT.
Other locations in the path of this tornadic thunderstorm include
Greeley.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4243 9153 4252 9156 4261 9130 4245 9128
TIME...MOT...LOC 0103Z 246DEG 19KT 4250 9142
TORNADO...OBSERVED
HAIL...1.00IN
$$
DC798
WWUS53 KDVN 150112
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
812 PM CDT Wed Jul 14 2021
IAC055-150121-
/O.EXP.KDVN.TO.W.0011.000000T0000Z-210715T0115Z/
Delaware IA-
812 PM CDT Wed Jul 14 2021
...THE TORNADO WARNING FOR CENTRAL DELAWARE COUNTY WILL EXPIRE AT 815
PM CDT...
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.
A Tornado Watch remains in effect until midnight CDT for northeastern
Iowa.
Remember, a Severe Thunderstorm Warning is in effect for northern
Delaware County until 845 PM CDT.
LAT...LON 4243 9153 4252 9156 4261 9130 4245 9128
TIME...MOT...LOC 0111Z 264DEG 22KT 4250 9136
$$
DCThe office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 14, 7:28 PM CDT | Tornado Warning | DVN | Buchanan, Delaware | 17 min |
| Jul 14, 7:37 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Linn | 38 min |
| Jul 14, 7:40 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan, Delaware | 35 min |
| Jul 14, 7:43 PM CDT | Tornado Warning | DVN | Benton | 32 min |
| Jul 14, 7:53 PM CDT | Tornado Warning | DVN | Benton | 27 min |
| Jul 14, 8:11 PM CDT | Severe Thunderstorm Warning | DVN | Delaware, Dubuque | 19 min |
| Jul 14, 8:14 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Linn | 46 min |
| Jul 14, 8:19 PM CDT | Tornado Warning | DVN | Benton, Linn | 22 min |
| Jul 14, 8:31 PM CDT | Tornado Warning | DVN | Benton, Linn | 29 min |
| Jul 14, 8:56 PM CDT | Tornado Warning | DVN | Delaware, Linn | 49 min |
| Jul 14, 9:08 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Iowa | 32 min |
| Jul 14, 9:29 PM CDT | Tornado Warning | DVN | Delaware, Jones | 46 min |
| Jul 14, 10:02 PM CDT | Tornado Warning | DVN | Jones | 43 min |
| Jul 14, 10:14 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Johnson, Jones, Linn | 46 min |
| Jul 14, 10:34 PM CDT | Tornado Warning | DVN | Cedar | 26 min |
| Jul 14, 10:41 PM CDT | Severe Thunderstorm Warning | DVN | Jackson | 49 min |
| Jul 14, 10:52 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton, Jones, Scott | 38 min |
| Jul 14, 11:10 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Jackson | 50 min |
| Jul 15, 8:58 AM CDT | Special Weather Statement | DVN | Henry, Jefferson | 47 min |
| Jul 15, 5:23 PM CDT | Special Weather Statement | DVN | Clinton | 37 min |
Nearby
Tornado Warnings in Iowa, 2021Every tornado warning in 2021Tornadoes 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.