Alert archive / Iowa / Tornado Warnings in 2017
Tornado Warning 7, NWS Quad Cities, IA
NWS Quad Cities, IA issued this tornado warning at Mar 6, 2017, 8:40 PM CST for Buchanan County, Delaware County, Iowa. It was in force for 38 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 6, 2017, 8:40 PM CST (02:40 UTC)
- Expired
- Mar 6, 2017, 9:18 PM CST
- In force
- 38 min
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Buchanan County, IA, Delaware County, IA
The radar
The Quad Cities radar (KDVN), 123 km from the middle of the area, began a volume at 02:42 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 6, 1:54 PM CST | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 2.7 hours before the alert went out and 127 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
- 39 J/kg
- Mixed-layer CIN
- -343 J/kg
- Mixed-layer LCL
- 1016 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 407 m²/s²
- 0-3 km storm-relative helicity
- 489 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
341
WFUS53 KDVN 070240
TORDVN
IAC019-055-070330-
/O.NEW.KDVN.TO.W.0007.170307T0240Z-170307T0330Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Quad Cities IA/IL
840 PM CST MON MAR 6 2017
The National Weather Service in the Quad Cities has issued a
* Tornado Warning for...
Southern Buchanan County in northeastern Iowa...
Southwestern Delaware County in northeastern Iowa...
* Until 930 PM CST
* At 840 PM CST, a severe thunderstorm capable of producing a tornado
was located over Brandon, or 10 miles north of Vinton, moving east
at 35 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...
Rowley around 850 PM CST.
Quasqueton around 900 PM CST.
Masonville around 915 PM CST.
Ryan around 920 PM CST.
Other locations impacted by this tornadic thunderstorm include Lime
Creek County Park, Monti and Robinson.
This includes Interstate 380 between mile markers 49 and 53.
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.
Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!
&&
LAT...LON 4231 9139 4229 9172 4230 9181 4230 9202
4236 9203 4249 9155
TIME...MOT...LOC 0240Z 259DEG 32KT 4232 9197
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
MCCLURE4 follow-up statements
496
WWUS53 KDVN 070247
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
847 PM CST MON MAR 6 2017
IAC019-055-070330-
/O.CON.KDVN.TO.W.0007.000000T0000Z-170307T0330Z/
Buchanan IA-Delaware IA-
847 PM CST MON MAR 6 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 930 PM CST FOR
SOUTHEASTERN BUCHANAN AND SOUTHWESTERN DELAWARE COUNTIES...
At 847 PM CST, a severe thunderstorm capable of producing a tornado
was located near Rowley, or 9 miles south of Independence, moving
east at 35 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
Rowley around 850 PM CST.
Quasqueton around 900 PM CST.
Masonville around 915 PM CST.
Ryan around 920 PM CST.
Other locations impacted by this tornadic thunderstorm include Monti
and Robinson.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!
&&
LAT...LON 4231 9139 4229 9172 4230 9181 4230 9192
4238 9197 4249 9155
TIME...MOT...LOC 0247Z 259DEG 32KT 4233 9188
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
MCCLURE523
WWUS53 KDVN 070252 CCA
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
852 PM CST MON MAR 6 2017
IAC019-055-070330-
/O.COR.KDVN.TO.W.0007.000000T0000Z-170307T0330Z/
Buchanan IA-Delaware IA-
852 PM CST MON MAR 6 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 930 PM CST FOR
SOUTHEASTERN BUCHANAN AND SOUTHWESTERN DELAWARE COUNTIES...
At 852 PM CST, a severe thunderstorm capable of producing a tornado
was located near Rowley, or 9 miles southeast of Independence, moving
east at 45 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...
Masonville around 910 PM CST.
Ryan around 915 PM CST.
Other locations impacted by this tornadic thunderstorm include Monti
and Robinson.
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.
Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!
&&
LAT...LON 4231 9139 4229 9172 4230 9181 4230 9192
4238 9197 4249 9155
TIME...MOT...LOC 0247Z 257DEG 38KT 4233 9188
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
MCCLURE872
WWUS53 KDVN 070308 RRA
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
908 PM CST MON MAR 6 2017
IAC019-055-070330-
/O.CON.KDVN.TO.W.0007.000000T0000Z-170307T0330Z/
Buchanan IA-Delaware IA-
908 PM CST MON MAR 6 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 930 PM CST FOR
SOUTHEASTERN BUCHANAN AND SOUTHWESTERN DELAWARE COUNTIES...
At 908 PM CST, a severe thunderstorm capable of producing a tornado
was located near Ryan, or 9 miles southwest of Manchester, moving
east at 45 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This tornadic thunderstorm will remain over mainly rural areas of
southeastern Buchanan and southwestern Delaware Counties, including
the following locations: Monti and Robinson.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!
&&
LAT...LON 4229 9167 4245 9165 4249 9155 4231 9139
TIME...MOT...LOC 0308Z 257DEG 38KT 4238 9158
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
MCCLURE063
WWUS53 KDVN 070318
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
918 PM CST MON MAR 6 2017
IAC019-055-070328-
/O.CAN.KDVN.TO.W.0007.000000T0000Z-170307T0330Z/
Buchanan IA-Delaware IA-
918 PM CST MON MAR 6 2017
...THE TORNADO WARNING FOR SOUTHEASTERN BUCHANAN AND SOUTHWESTERN
DELAWARE COUNTIES IS CANCELLED...
The tornadic thunderstorm which prompted the warning has weakened.
Therefore the warning has been cancelled.
A tornado watch remains in effect until 1000 PM CST for northeastern
and east central Iowa.
LAT...LON 4229 9167 4245 9165 4249 9155 4231 9139
TIME...MOT...LOC 0317Z 257DEG 38KT 4240 9144
$$
MCCLUREThe office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 6, 8:02 PM CST | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Iowa | 58 min |
| Mar 6, 8:04 PM CST | Severe Thunderstorm Warning | DVN | Keokuk | 56 min |
| Mar 6, 8:29 PM CST | Severe Thunderstorm Warning | DVN | Delaware, Johnson, Linn | 61 min |
| Mar 6, 8:46 PM CST | Severe Thunderstorm Warning | DVN | Keokuk, Washington | 74 min |
| Mar 6, 8:46 PM CST | Tornado Warning | DVN | Benton, Iowa, Johnson, Linn | 22 min |
| Mar 6, 8:54 PM CST | Severe Thunderstorm Warning | DVN | Jefferson, Van Buren | 81 min |
| Mar 6, 9:05 PM CST | Severe Thunderstorm Warning | DVN | Cedar, Jones | 55 min |
| Mar 6, 9:07 PM CST | Tornado Warning | DVN | Jones, Linn | 26 min |
| Mar 6, 9:19 PM CST | Severe Thunderstorm Warning | DVN | Dubuque | 56 min |
| Mar 6, 9:28 PM CST | Severe Thunderstorm Warning | DVN | Johnson | 47 min |
| Mar 6, 9:31 PM CST | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Lee, Louisa, Muscatine | 74 min |
| Mar 6, 9:31 PM CST | Tornado Warning | DVN | Dubuque, Jackson, Jones | 44 min |
| Mar 6, 9:42 PM CST | Severe Thunderstorm Warning | DVN | Jackson | 63 min |
| Mar 6, 9:49 PM CST | Severe Thunderstorm Warning | DVN | Clinton | 71 min |
| Mar 6, 9:52 PM CST | Severe Thunderstorm Warning | DVN | Clinton, Scott | 83 min |
| Mar 6, 9:55 PM CST | Tornado Warning | DVN | Jackson | 38 min |
| Mar 6, 10:04 PM CST | Severe Thunderstorm Warning | DVN | Cedar | 44 min |
| Mar 6, 10:10 PM CST | Tornado Warning | DVN | Muscatine, Scott | 24 min |
| Mar 6, 10:17 PM CST | Tornado Warning | DVN | Cedar, Clinton, Scott | 31 min |
| Mar 6, 10:23 PM CST | Tornado Warning | DVN | Clinton, Scott | 26 min |
| Mar 6, 10:26 PM CST | Severe Thunderstorm Warning | DVN | Clinton, Scott | 49 min |
| Mar 6, 10:46 PM CST | Tornado Warning | DVN | Clinton, Jackson | 20 min |
| Mar 7, 3:32 AM CST | Red Flag Warning | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 14 hr |
| Mar 7, 3:37 AM CST | Wind Advisory | DVN | Benton, Buchanan, Delaware, Dubuque, Jackson, Jones and 1 more | 12 hr |
Nearby
Tornado Warnings in Iowa, 2017Every tornado warning in 2017Tornadoes in 2017
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.