Alert archive / Iowa / Tornado Warnings in 2014
Tornado Warning 21, NWS Quad Cities, IA
NWS Quad Cities, IA issued this tornado warning at Jul 6, 2014, 8:36 PM CDT for Benton County, Iowa. It was in force for 39 min. 1 report 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 6, 2014, 8:36 PM CDT (01:36 UTC)
- Expired
- Jul 6, 2014, 9:15 PM CDT
- In force
- 39 min
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
- Tornado
- Observed
- Hail
- 0.0 in
County Benton County, IA
The radar
The Quad Cities radar (KDVN), 138 km from the middle of the area, began a volume at 01:37 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 6, 8:56 PM CDT | TORNADO | 7 Nnw Keystone, IA | BRIEF TOUCHDOWN RELAYED BY EMERGENCY MANAGEMENT. |
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, 1.6 hours before the alert went out and 143 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
- 1325 J/kg
- Mixed-layer CIN
- -174 J/kg
- Mixed-layer LCL
- 1280 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 76 m²/s²
- 0-3 km storm-relative helicity
- 195 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.9
The text
As transmitted, in the capitals the NWS used until 2016.
936
WFUS53 KDVN 070136
TORDVN
IAC011-070215-
/O.NEW.KDVN.TO.W.0021.140707T0136Z-140707T0215Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
836 PM CDT SUN JUL 6 2014
THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A
* TORNADO WARNING FOR...
WESTERN BENTON COUNTY IN EAST CENTRAL IOWA...
* UNTIL 915 PM CDT
* AT 834 PM CDT...A CONFIRMED TORNADO WAS LOCATED JUST NORTHEAST OF
TRAER AND WAS MOVING SOUTHEAST AT 30 MPH.
HAZARD...DAMAGING TORNADO.
SOURCE...WEATHER SPOTTERS 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.
* THE TORNADO WILL BE NEAR...
GARRISON AROUND 900 PM CDT.
KEYSTONE AROUND 905 PM CDT.
VAN HORNE AROUND 910 PM CDT.
OTHER LOCATIONS AFFECTED INCLUDE BENTON COUNTY FAIRGROUNDS AND
HOEFLE-DULIN AREA PARK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TO REPEAT...A TORNADO IS ON THE GROUND. TAKE COVER NOW. MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID
WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE
CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4216 9196 4191 9204 4203 9230 4222 9229
TIME...MOT...LOC 0135Z 299DEG 26KT 4218 9238
TORNADO...OBSERVED
HAIL...0.00IN
$$2 follow-up statements
229
WWUS53 KDVN 070151
SVSDVN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
851 PM CDT SUN JUL 6 2014
IAC011-070215-
/O.CON.KDVN.TO.W.0021.000000T0000Z-140707T0215Z/
BENTON IA-
851 PM CDT SUN JUL 6 2014
...A TORNADO WARNING REMAINS IN EFFECT FOR WESTERN BENTON COUNTY
UNTIL 915 PM CDT...
AT 849 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR DYSART...AND MOVING SOUTHEAST AT 20 MPH.
HAZARD...TORNADO.
SOURCE...RADAR INDICATED ROTATION.
IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE
TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREE DAMAGE IS
LIKELY.
LOCATIONS IMPACTED INCLUDE...
GARRISON...KEYSTONE AND VAN HORNE.
OTHER LOCATIONS AFFECTED INCLUDE BENTON COUNTY FAIRGROUNDS AND
HOEFLE-DULIN AREA PARK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. TAKE COVER NOW.
&&
LAT...LON 4216 9196 4191 9204 4203 9230 4222 9229
TIME...MOT...LOC 0151Z 301DEG 23KT 4213 9228
TORNADO...RADAR INDICATED
HAIL...0.00IN
$$
WOLF116 WWUS53 KDVN 070216 SVSDVN SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 916 PM CDT SUN JUL 6 2014 IAC011-070226- /O.EXP.KDVN.TO.W.0021.000000T0000Z-140707T0215Z/ BENTON IA- 916 PM CDT SUN JUL 6 2014 ...THE TORNADO WARNING FOR WESTERN BENTON COUNTY HAS EXPIRED... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY. LAT...LON 4216 9196 4191 9204 4203 9230 4222 9229 TIME...MOT...LOC 0151Z 301DEG 23KT 4213 9228 $$ WOLF
The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 6, 7:31 PM CDT | Special Weather Statement | DVN | Benton, Buchanan, Delaware, Dubuque, Linn | 59 min |
| Jul 6, 11:05 PM CDT | Severe Thunderstorm Warning | DVN | Jefferson, Van Buren | 55 min |
Nearby
Tornado Warnings in Iowa, 2014Every tornado warning in 2014Tornadoes in 2014
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.