Alert archive / Iowa / Tornado Warnings in 2007

Tornado Warning 17, NWS Quad Cities, IA

June 7, 2007Jones County, Iowa

NWS Quad Cities, IA issued this tornado warning at Jun 7, 2007, 3:42 PM CDT for Jones County, Iowa. It was in force for 48 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, 3:42 PM CDT (20:42 UTC)
Expired
Jun 7, 2007, 4:30 PM CDT
In force
48 min
Issued by
NWS Quad Cities, IA
Area
Counties, with a storm outline in the text

County Jones County, IA

The radar

The Quad Cities radar (KDVN), 72 km from the middle of the area, began a volume at 20:42 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.

IssuedProductOfficeLasted
Jun 7, 11:34 AM CDTTornado Watch PDSSPC10 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 8.7 hours before the alert went out and 76 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.

Skew-T log-pSkew-T log-p diagram, Davenport, at 12:00Z on 2007-06-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 44 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 12:00Z on 2007-06-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 372 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
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

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WFUS53 KDVN 072043
TORDVN
IAC105-072130-
/O.NEW.KDVN.TO.W.0017.070607T2042Z-070607T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
342 PM CDT THU JUN 7 2007

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  JONES COUNTY IN EAST CENTRAL IOWA...

* UNTIL 430 PM CDT.

* AT 338 PM CDT...TRAINED SPOTTERS REPORTED A FUNNEL CLOUD NEAR      
  LISBON...OR ABOUT 14 MILES EAST OF CEDAR RAPIDS...                 
  MOVING NORTHEAST AT 55 MPH.

* THE TORNADO WILL BE NEAR...
  MORLEY AROUND 350 PM CDT...
  OLIN AROUND 355 PM CDT...
  CENTER JUNCTION AND WYOMING AROUND 400 PM CDT...
  ONSLOW AROUND 405 PM CDT...

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 4203 9136 4194 9137 4197 9097 4222 9093
      4226 9109

$$

ERVIN
1 follow-up statement
000 
WWUS53 KDVN 072103
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
402 PM CDT THU JUN 7 2007

IAC105-072130-
/O.CON.KDVN.TO.W.0017.000000T0000Z-070607T2130Z/
JONES IA-
402 PM CDT THU JUN 7 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 430 PM CDT FOR JONES
COUNTY...

AT 359 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED APPROXIMATELY NEAR
MORLEY...OR ABOUT 8 MILES SOUTH OF ANAMOSA...MOVING NORTHEAST AT 55
MPH.

THE TORNADO WILL BE NEAR...
  ONSLOW...WYOMING...SCOTCH GROVE AND 9 MILES SOUTHEAST OF PICTURED
  ROCKS WMA AROUND 410 PM CDT...
  6 MILES SOUTHEAST OF TEMPLE HILL AROUND 415 PM CDT...

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 4203 9136 4194 9137 4201 9090 4224 9091
      4226 9109

$$

ERVIN

The office that day

Everything else NWS Quad Cities, IA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 7, 2:19 PM CDTSevere Thunderstorm WarningDVNIowa, Keokuk41 min
Jun 7, 2:41 PM CDTTornado WarningDVNIowa32 min
Jun 7, 2:48 PM CDTTornado WarningDVNJohnson, Linn57 min
Jun 7, 4:32 PM CDTSevere Thunderstorm WarningDVNCedar, Johnson43 min
Jun 7, 4:45 PM CDTTornado WarningDVNCedar, Johnson30 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.