Alert archive / Iowa / Tornado Warnings in 2007
Tornado Warning 18, NWS Quad Cities, IA
NWS Quad Cities, IA issued this tornado warning at Jun 7, 2007, 4:45 PM CDT for Cedar County, Johnson County, Iowa. It was in force for 30 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
- Jun 7, 2007, 4:45 PM CDT (21:45 UTC)
- Expired
- Jun 7, 2007, 5:15 PM CDT
- In force
- 30 min
- Issued by
- NWS Quad Cities, IA
- Area
- Counties, with a storm outline in the text
Counties Cedar County, IA, Johnson County, IA
The radar
The Quad Cities radar (KDVN), 59 km from the middle of the area, began a volume at 21:45 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 |
|---|---|---|---|
| Jun 7, 11:34 AM CDT | Tornado Watch | SPC | 10 hr |
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 9.8 hours before the alert went out and 66 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 072145 TORDVN IAC031-103-072215- /O.NEW.KDVN.TO.W.0018.070607T2145Z-070607T2215Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE QUAD CITIES IA IL 445 PM CDT THU JUN 7 2007 THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A * TORNADO WARNING FOR... CEDAR COUNTY IN EAST CENTRAL IOWA... JOHNSON COUNTY IN EAST CENTRAL IOWA... * UNTIL 515 PM CDT. * AT 441 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A TORNADO 17 MILES SOUTHWEST OF TIPTON...OR ABOUT NEAR IOWA CITY... MOVING NORTHEAST AT 50 MPH. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO CLARENCE AND BENNETT THIS INCLUDES INTERSTATE 80 IN IOWA BETWEEN MILE MARKERS 247 AND 265. 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 MIDNIGHT CDT FRIDAY MORNING FOR NORTHWESTERN ILLINOIS. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL 1000 PM CDT THURSDAY EVENING FOR EASTERN IOWA. LAT...LON 4171 9151 4161 9145 4166 9091 4193 9101 $$ ERVIN
2 follow-up statements
000 WWUS53 KDVN 072201 SVSDVN SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 459 PM CDT THU JUN 7 2007 IAC103-072209- /O.CAN.KDVN.TO.W.0018.000000T0000Z-070607T2215Z/ JOHNSON IA- 459 PM CDT THU JUN 7 2007 ...THE TORNADO WARNING FOR JOHNSON COUNTY IS CANCELLED... THE THUNDERSTORM THAT WAS CAPABLE OF PRODUCING A TORNADO HAS MOVED OUT OF THE WARNED AREA. THEREFORE THE TORNADO WARNING HAS BEEN CANCELLED. ADDITIONAL THUNDERSTORMS WILL BE POSSIBLE IN JOHNSON COUNTY THROUGH 6 PM. THERE IS STILL A THREAT OF MORE SEVERE THUNDERSTORMS. A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT FRIDAY MORNING FOR NORTHWESTERN ILLINOIS. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL 1000 PM CDT THURSDAY EVENING FOR EASTERN IOWA. LAT...LON 4178 9134 4168 9128 4173 9092 4193 9101 $$ IAC031-072215- /O.CON.KDVN.TO.W.0018.000000T0000Z-070607T2215Z/ CEDAR IA- 459 PM CDT THU JUN 7 2007 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CDT FOR CEDAR COUNTY... AT 458 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A TORNADO. THIS TORNADO WAS LOCATED APPROXIMATELY NEAR TIPTON MATTHEWS AIRPORT...OR ABOUT NEAR TIPTON...MOVING NORTHEAST AT 50 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WALD... CLARENCE AND BENNETT 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 4178 9134 4168 9128 4173 9092 4193 9101 $$ ERVIN
000 WWUS53 KDVN 072214 SVSDVN SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 513 PM CDT THU JUN 7 2007 IAC031-072223- /O.EXP.KDVN.TO.W.0018.000000T0000Z-070607T2215Z/ CEDAR IA- 513 PM CDT THU JUN 7 2007 ...THE TORNADO WARNING FOR CEDAR COUNTY EXPIRES AT 515 PM CDT... THE SEVERE THUNDERSTORM THAT WAS CAPABLE OF PRODUCING A TORNADO HAS WEAKENED. THEREFORE THE TORNADO WARNING HAS BEEN ALLOWED TO EXPIRE. THUNDERSTORMS ARE STILL EXEPCTED OVER CEDAR COUNTY THROUGH 6 PM...SO THE THREAT OF SEVERE WEATHER WILL CONTINUE. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT THURSDAY EVENING FOR EASTERN IOWA. LAT...LON 4178 9134 4168 9128 4173 9092 4193 9101 $$ ERVIN
The 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, 2:48 PM CDT | Tornado Warning | DVN | Johnson, Linn | 57 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 |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.