Alert archive / Iowa / Tornado Warnings in 2007
Tornado Warning 16, NWS Quad Cities, IA
NWS Quad Cities, IA issued this tornado warning at Jun 7, 2007, 2:48 PM CDT for Johnson County, Linn County, Iowa. It was in force for 57 min. 2 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
- Jun 7, 2007, 2:48 PM CDT (19:48 UTC)
- Expired
- Jun 7, 2007, 3:45 PM CDT
- In force
- 57 min
- Issued by
- NWS Quad Cities, IA
- Area
- Counties, with a storm outline in the text
Counties Johnson County, IA, Linn County, IA
The radar
The Quad Cities radar (KDVN), 88 km from the middle of the area, began a volume at 19:48 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 |
|---|---|---|---|
| Jun 7, 2:50 PM CDT | TSTM WND DMG | Lisbon, IA | TREES DOWN ON POWER LINES IN TOWN. DELAYED REPORT. |
| Jun 7, 3:40 PM CDT | FUNNEL CLOUD | Lisbon, IA |
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 |
|---|---|---|---|
| Jun 7, 11:34 AM CDT | Tornado Watch | SPC | 10 hr |
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 7.8 hours before the alert went out and 94 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
- 44 J/kg
- Mixed-layer CIN
- -791 J/kg
- Mixed-layer LCL
- 1362 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 372 m²/s²
- 0-3 km storm-relative helicity
- 374 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WFUS53 KDVN 071948
TORDVN
IAC103-113-072045-
/O.NEW.KDVN.TO.W.0016.070607T1948Z-070607T2045Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
248 PM CDT THU JUN 7 2007
THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A
* TORNADO WARNING FOR...
JOHNSON COUNTY IN EAST CENTRAL IOWA...
LINN COUNTY IN EAST CENTRAL IOWA...
* UNTIL 345 PM CDT.
* AT 243 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
TORNADO 21 MILES SOUTHWEST OF OXFORD...OR ABOUT 15 MILES NORTH OF
SIGOURNEY...MOVING NORTHEAST AT 60 MPH.
* THE TORNADO WILL BE NEAR...
OXFORD AROUND 305 PM CDT...
TIFFIN AND NORTH LIBERTY AROUND 310 PM CDT...
SHUEYVILLE AND SWISHER AROUND 315 PM CDT...
ELY AND SOLON AROUND 320 PM CDT...
MOUNT VERNON AND 6 MILES SOUTHEAST OF BERTRAM AROUND 325 PM CDT...
LISBON AROUND 330 PM CDT...
THIS INCLUDES INTERSTATE 80 IN IOWA BETWEEN MILE MARKERS 229 AND 248.
THIS INCLUDES INTERSTATE 380 IN IOWA BETWEEN MILE MARKERS 1 AND 17.
THE SAFEST PLACE TO BE IN A TORNADO IS IN A BASEMENT OR INTERIOR ROOM
OR HALLWAY ON THE LOWEST FLOOR OF A BUILDING.
THIS STORM IS ALSO CAPABLE OF PRODUCING LARGE HAIL THE SIZE OF
GOLFBALLS.
LAT...LON 4161 9183 4183 9182 4212 9138 4174 9139
4172 9140 4159 9154 4155 9182
$$
ERVIN2 follow-up statements
000
WWUS53 KDVN 072020
SVSDVN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
318 PM CDT THU JUN 7 2007
IAC103-113-072045-
/O.CON.KDVN.TO.W.0016.000000T0000Z-070607T2045Z/
LINN IA-JOHNSON IA-
318 PM CDT THU JUN 7 2007
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 345 PM CDT FOR JOHNSON
AND LINN COUNTIES...
AT 313 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED APPROXIMATELY NEAR KENT
COUNTY PARK...OR ABOUT 11 MILES WEST OF IOWA CITY...MOVING NORTHEAST
AT 50 MPH.
THE TORNADO WILL BE NEAR...
TWIN VIEW HEIGHTS...LAKE MACBRIDE STATE PARK...COU FALLS AND
SHUEYVILLE AROUND 325 PM CDT...
SOLON AND ELY AROUND 330 PM CDT...
PALISADES-KEPLER SP AND 6 MILES SOUTHEAST OF BERTRAM AROUND 335 PM
CDT...
LISBON AND MOUNT VERNON AROUND 340 PM CDT...
THIS INCLUDES INTERSTATE 80 IN IOWA BETWEEN MILE MARKERS 230 AND 249.
THIS INCLUDES INTERSTATE 380 BETWEEN MILE MARKERS 1 AND 16.
ANOTHER STORM STORM NEAR COGGON WAS SHOWING SIGNS OF STRENGTHENING.
THIS STORM WAS ALSO MOVING NORTHEAST AT 50 MPH AND WILL MOVING
THROUGH SOUTHEASTERN DELAWARE COUNTY BY 5 PM.
THE SAFEST PLACE TO BE IN A TORNADO IS IN A BASEMENT OR INTERIOR ROOM
OR HALLWAY ON THE LOWEST FLOOR OF A BUILDING.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT THURSDAY EVENING
FOR EASTERN IOWA.
LAT...LON 4161 9183 4183 9182 4212 9138 4174 9139
4172 9140 4159 9154 4155 9182
$$
ERVIN000
WWUS53 KDVN 072047
SVSDVN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
346 PM CDT THU JUN 7 2007
IAC103-113-072056-
/O.EXP.KDVN.TO.W.0016.000000T0000Z-070607T2045Z/
LINN IA-JOHNSON IA-
346 PM CDT THU JUN 7 2007
...THE TORNADO WARNING FOR JOHNSON AND LINN COUNTIES EXPIRES AT 345
PM CDT...
THE SEVERE THUNDERSTORM THAT WAS CAPABLE OF PRODUCING A TORNADO HAS
MOVED OUT OF THE WARNED AREA. THEREFORE THE TORNADO WARNING HAS BEEN
ALLOWED TO EXPIRE. A ROTATING FUNNEL CLOUD WAS REPORTED NEAR LISBON
AT
340 PM...THIS FUNNEL IS NOW MOVING INTO JONES COUNTY.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT THURSDAY EVENING
FOR EASTERN IOWA.
LAT...LON 4161 9183 4183 9182 4212 9138 4174 9139
4172 9140 4159 9154 4155 9182
$$
ERVINThe office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 7, 2:19 PM CDT | Severe Thunderstorm Warning | DVN | Iowa, Keokuk | 41 min |
| Jun 7, 2:41 PM CDT | Tornado Warning | DVN | Iowa | 32 min |
| Jun 7, 3:42 PM CDT | Tornado Warning | DVN | Jones | 48 min |
| Jun 7, 4:32 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Johnson | 43 min |
| Jun 7, 4:45 PM CDT | Tornado Warning | DVN | Cedar, Johnson | 30 min |
Nearby
Tornado Warnings in Iowa, 2007Every tornado warning in 2007Tornadoes in 2007
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.