Alert archive / Iowa / Tornado Warnings in 2019
Tornado Warning 21, NWS Quad Cities, IA
NWS Quad Cities, IA issued this tornado warning at May 29, 2019, 7:11 PM CDT for 4 counties in Iowa. It was in force for 49 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
- May 29, 2019, 7:11 PM CDT (00:11 UTC)
- Expired
- May 29, 2019, 8:00 PM CDT
- In force
- 49 min
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.0 in
Counties Benton County, IA, Iowa County, IA, Johnson County, IA, Linn County, IA
The radar
The Quad Cities radar (KDVN), 115 km from the middle of the area, began a volume at 00:12 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 |
|---|---|---|---|
| May 29, 7:20 PM CDT | FUNNEL CLOUD | 2 E Marengo, IA | A FUNNEL IS DISSIPATING AND REFORMING. |
| May 29, 7:24 PM CDT | HAIL 0.88 | 2 Wnw West Amana, IA | PEA TO NICKEL HAIL. |
| May 29, 7:43 PM CDT | TORNADO | 2 N Middle Amana, IA | POSSIBLE TORNADO TOUCH DOWN. TIME ESTIMATED USING RADAR. |
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 00:00Z, 0.2 hours before the alert went out and 122 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
- 614 J/kg
- Mixed-layer CIN
- -13 J/kg
- Mixed-layer LCL
- 778 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 56 m²/s²
- 0-3 km storm-relative helicity
- 167 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 3.3
The text
As transmitted.
525
WFUS53 KDVN 300011
TORDVN
IAC011-095-103-113-300100-
/O.NEW.KDVN.TO.W.0021.190530T0011Z-190530T0100Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Quad Cities IA/IL
711 PM CDT Wed May 29 2019
The National Weather Service in the Quad Cities has issued a
* Tornado Warning for...
Northwestern Johnson County in east central Iowa...
Southeastern Benton County in east central Iowa...
Southwestern Linn County in east central Iowa...
Northeastern Iowa County in east central Iowa...
* Until 800 PM CDT.
* At 711 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Marengo, moving northeast 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...
Amana around 735 PM CDT.
Norway around 740 PM CDT.
Walford around 745 PM CDT.
Atkins around 755 PM CDT.
Cedar Rapids, Fairfax, Swisher and Shueyville around 800 PM CDT.
Other locations impacted by this tornadic thunderstorm include East
Amana, Middle Amana, South Amana, Watkins, Homestead, West Amana,
High Amana, Cou Falls, Iowa County Fairgrounds and Cedar Rapids
Municipal Airport.
This includes the following highways...
Interstate 80 in Iowa between mile markers 218 and 219.
Interstate 380 between mile markers 8 and 12.
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.
&&
LAT...LON 4168 9204 4180 9220 4204 9184 4182 9161
TIME...MOT...LOC 0011Z 234DEG 20KT 4178 9205
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
121 follow-up statement
882
WWUS53 KDVN 300026
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
726 PM CDT Wed May 29 2019
IAC011-095-103-113-300100-
/O.CON.KDVN.TO.W.0021.000000T0000Z-190530T0100Z/
Johnson IA-Benton IA-Linn IA-Iowa IA-
726 PM CDT Wed May 29 2019
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 PM CDT FOR
NORTHWESTERN JOHNSON...SOUTHEASTERN BENTON...SOUTHWESTERN LINN AND
NORTHEASTERN IOWA COUNTIES...
At 725 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Amana, or near Marengo, moving northeast at 15 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Weather spotters reported a funnel cloud near Marengo at
723 PM.
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...
Amana around 735 PM CDT.
Norway around 740 PM CDT.
Walford around 745 PM CDT.
Atkins and Swisher around 755 PM CDT.
Cedar Rapids, Fairfax and Shueyville around 800 PM CDT.
Other locations impacted by this tornadic thunderstorm include East
Amana, Middle Amana, South Amana, Watkins, Homestead, West Amana,
High Amana, Cou Falls, Iowa County Fairgrounds and Cedar Rapids
Municipal Airport.
This includes the following highways...
Interstate 80 in Iowa between mile markers 218 and 219.
Interstate 380 between mile markers 8 and 12.
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 4168 9204 4180 9220 4204 9184 4182 9161
TIME...MOT...LOC 0025Z 234DEG 20KT 4183 9196
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
12The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 29, 7:08 PM CDT | Special Weather Statement | DVN | Benton | 37 min |
| May 29, 7:18 PM CDT | Tornado Warning | DVN | Iowa | 42 min |
| May 29, 7:53 PM CDT | Tornado Warning | DVN | Iowa, Johnson, Linn | 52 min |
| May 29, 8:04 PM CDT | Tornado Warning | DVN | Iowa | 22 min |
| May 29, 8:08 PM CDT | Tornado Warning | DVN | Iowa, Johnson, Washington | 52 min |
| May 29, 8:18 PM CDT | Flash Flood Warning | DVN | Benton, Iowa, Johnson, Linn | 6 hr |
| May 29, 8:31 PM CDT | Tornado Warning | DVN | Johnson, Linn | 32 min |
| May 29, 8:50 PM CDT | Flash Flood Warning | DVN | Des Moines, Lee | 6 hr |
| May 29, 9:00 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Johnson, Jones, Linn | 75 min |
| May 29, 9:48 PM CDT | Flash Flood Warning | DVN | Des Moines, Henry, Johnson, Lee, Louisa | 5 hr |
| May 29, 10:09 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton, Jones | 66 min |
| May 29, 10:15 PM CDT | Flash Flood Warning | DVN | Cedar, Clinton, Jackson, Jones, Scott | 6 hr |
| May 29, 10:31 PM CDT | Flash Flood Warning | DVN | Muscatine, Scott | 4 hr |
| May 29, 10:37 PM CDT | Severe Thunderstorm Warning | DVN | Clinton | 53 min |
| May 30, 3:04 AM CDT | Areal Flood Warning | DVN | Des Moines, Henry, Jefferson, Lee, Louisa, Van Buren and 1 more | 33 hr |
Nearby
Tornado Warnings in Iowa, 2019Every tornado warning in 2019Tornadoes in 2019
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.