Alert archive / Iowa / Tornado Warnings in 2021
Tornado Warning 2, NWS Quad Cities, IA
NWS Quad Cities, IA issued this tornado warning at Mar 23, 2021, 7:40 PM CDT for Washington County, Iowa. It was in force for 15 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
- Mar 23, 2021, 7:40 PM CDT (00:40 UTC)
- Expired
- Mar 23, 2021, 7:55 PM CDT
- In force
- 15 min
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
County Washington County, IA
The radar
The Quad Cities radar (KDVN), 94 km from the middle of the area, began a volume at 00:38 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, 0.7 hours before the alert went out and 101 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
- 24 J/kg
- Mixed-layer CIN
- -24 J/kg
- Mixed-layer LCL
- 518 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 195 m²/s²
- 0-3 km storm-relative helicity
- 200 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
101
WFUS53 KDVN 240040
TORDVN
IAC183-240130-
/O.NEW.KDVN.TO.W.0002.210324T0040Z-210324T0130Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Quad Cities IA/IL
740 PM CDT Tue Mar 23 2021
The National Weather Service in the Quad Cities has issued a
* Tornado Warning for...
North central Washington County in southeastern Iowa...
* Until 830 PM CDT.
* At 740 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Richmond, or near Washington, moving north at 25
mph.
HAZARD...Tornado.
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...
Richmond around 750 PM CDT.
Kalona and Riverside around 755 PM CDT.
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 4134 9165 4134 9174 4149 9180 4150 9156
TIME...MOT...LOC 0040Z 182DEG 24KT 4139 9169
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
DC1 follow-up statement
393
WWUS53 KDVN 240055
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
755 PM CDT Tue Mar 23 2021
IAC183-240105-
/O.CAN.KDVN.TO.W.0002.000000T0000Z-210324T0130Z/
Washington IA-
755 PM CDT Tue Mar 23 2021
...THE TORNADO WARNING FOR NORTH CENTRAL WASHINGTON COUNTY IS
CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been cancelled.
LAT...LON 4134 9165 4134 9174 4149 9180 4150 9156
TIME...MOT...LOC 0054Z 182DEG 24KT 4149 9169
$$
DCThe office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 23, 7:11 PM CDT | Tornado Warning | DVN | Des Moines, Lee | 19 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.