Alert archive / Iowa / Tornado Warnings in 2007

Tornado Warning 8, NWS Quad Cities, IA

June 1, 2007Louisa County, Muscatine County, Iowa

NWS Quad Cities, IA issued this tornado warning at Jun 1, 2007, 12:09 PM CDT for Louisa County, Muscatine County, Iowa. It was in force for 51 min. 5 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 1, 2007, 12:09 PM CDT (17:09 UTC)
Expired
Jun 1, 2007, 1:00 PM CDT
In force
51 min
Issued by
NWS Quad Cities, IA
Area
Counties, with a storm outline in the text

Counties Louisa County, IA, Muscatine County, IA

The radar

The Quad Cities radar (KDVN), 59 km from the middle of the area, began a volume at 17:09 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

TimeReportWhereRemark
Jun 1, 12:15 PM CDTTORNADOGrandview, IASEVERE DAMAGE TO HOMES. CITY OF GRANDVIEW CORDONED OFF BY POLICE DUE TO THE DAMAGE. DELAYED REPORT.
Jun 1, 12:19 PM CDTTORNADO3 W Muscatine, IATRAINED SPOTTER REPORTS TORNADO AT BURLINGTON ROAD NEAR THE AIRPORT.
Jun 1, 12:25 PM CDTTORNADOMuscatine, IASEMI TRAILER TRUCKS OVERTURNED AT THE INDUSTRIAL CENTER IN MUSCATINE. DELAYED REPORT.
Jun 1, 12:26 PM CDTTORNADOMuscatine, IATORNADO ON THE GROUND NEAR THE BYPASS IN MUSCATINE. DEBRIS IN THE AIR. POSSIBLE DAMAGE.
Jun 1, 12:32 PM CDTTORNADO1 N Muscatine, IATORNADO ON THE GROUND NORTH SIDE OF MUSCATINE. DEBRIS FLYING INTO THE AIR.

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 12:00Z, 5.2 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.

Skew-T log-pSkew-T log-p diagram, Davenport, at 12:00Z on 2007-06-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 259 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 2007-06-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 47 square meters per square second.193958Sfc1 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
259 J/kg
Mixed-layer CIN
-43 J/kg
Mixed-layer LCL
871 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
47 m²/s²
0-3 km storm-relative helicity
77 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 011709
TORDVN
IAC115-139-011800-
/O.NEW.KDVN.TO.W.0008.070601T1709Z-070601T1800Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1209 PM CDT FRI JUN 1 2007

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  MUSCATINE COUNTY IN EAST CENTRAL IOWA...
  LOUISA COUNTY IN SOUTHEAST IOWA...

* UNTIL 100 PM CDT.

* AT 1205 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO NEAR GRANDVIEW...OR ABOUT 7 MILES NORTH OF WAPELLO...MOVING
  NORTHEAST AT 40 MPH.

* THE TORNADO WILL BE NEAR...
  FRUITLAND AROUND 1215 PM CDT...
  MUSCATINE AROUND 1220 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.

LAT...LON 4127 9135 4122 9118 4157 9096 4156 9125

$$

12
4 follow-up statements
000 
WWUS53 KDVN 011720
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1220 PM CDT FRI JUN 1 2007

IAC115-139-011800-
/O.CON.KDVN.TO.W.0008.000000T0000Z-070601T1800Z/
MUSCATINE IA-LOUISA IA-
1220 PM CDT FRI JUN 1 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 100 PM CDT FOR LOUISA
AND MUSCATINE COUNTIES...

AT 1217 PM CDT...A TORNADO WAS REPORTED.  THIS TORNADO WAS LOCATED 
APPROXIMATELY NEAR FRUITLAND...OR SOUTHWEST OF MUSCATINE...MOVING 
NORTHEAST AT 35 MPH.

THE TORNADO WILL BE NEAR...
  MUSCATINE AROUND 1225 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.

LAT...LON 4127 9135 4122 9118 4157 9096 4156 9125

$$

12
000 
WWUS53 KDVN 011727
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1226 PM CDT FRI JUN 1 2007

IAC115-139-011800-
/O.CON.KDVN.TO.W.0008.000000T0000Z-070601T1800Z/
MUSCATINE IA-LOUISA IA-
1226 PM CDT FRI JUN 1 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 100 PM CDT FOR LOUISA
AND MUSCATINE COUNTIES...

AT 1221 PM CDT...TRAINED SPOTTERS REPORTED A TORNADO WITH POSSIBLE 
DAMAGE.  THIS TORNADO WAS LOCATED ON THE SOUTHWEST SIDE OF 
MUSCATINE...MOVING NORTHEAST AT 35 MPH.  IF YOU ARE IN OR NEAR THE 
CITY OF MUSCATINE...SEEK SHELTER NOW

THE TORNADO WILL BE NEAR...
  RURAL MUSCATINE COUNTY THROUGH 1240 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.

THIS STORM HAS ALREADY PRODUCED A TORNADO AND REMAINS A THREAT.

LAT...LON 4127 9135 4122 9118 4157 9096 4156 9125

$$
000 
WWUS53 KDVN 011740
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1240 PM CDT FRI JUN 1 2007

IAC115-011750-
/O.CAN.KDVN.TO.W.0008.000000T0000Z-070601T1800Z/
LOUISA IA-
1240 PM CDT FRI JUN 1 2007

...THE TORNADO WARNING FOR LOUISA COUNTY IS CANCELLED...

THE SEVERE THUNDERSTORM THAT WAS CAPABLE OF PRODUCING A TORNADO HAS 
MOVED OUT OF THE WARNED AREA. THEREFORE THE TORNADO WARNING HAS BEEN 
CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 PM CDT FRIDAY EVENING FOR
EASTERN IOWA.

LAT...LON 4137 9135 4135 9112 4157 9096 4156 9125

$$

IAC139-011800-
/O.CON.KDVN.TO.W.0008.000000T0000Z-070601T1800Z/
MUSCATINE IA-
1240 PM CDT FRI JUN 1 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 100 PM CDT FOR MUSCATINE
COUNTY...

AT 1238 PM CDT...TRAINED SPOTTERS REPORTED A TORNADO.  THIS TORNADO
WAS LOCATED APPROXIMATELY 8 MILES NORTHEAST OF MUSCATINE...MOVING
NORTHEAST AT 35 MPH.

THIS STORM HAS ALREADY PRODUCED A TORNADO AND REMAINS A THREAT.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 PM CDT FRIDAY EVENING FOR
EASTERN IOWA.

LAT...LON 4137 9135 4135 9112 4157 9096 4156 9125

$$
000 
WWUS53 KDVN 011807
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
107 PM CDT FRI JUN 1 2007

IAC139-011817-
/O.EXP.KDVN.TO.W.0008.000000T0000Z-070601T1800Z/
MUSCATINE IA-
107 PM CDT FRI JUN 1 2007

...THE TORNADO WARNING FOR MUSCATINE COUNTY EXPIRED AT 100 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 TORNADO WATCH REMAINS IN EFFECT UNTIL 700 PM CDT FRIDAY EVENING FOR
EASTERN IOWA.

LAT...LON 4137 9135 4135 9112 4157 9096 4156 9125

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 1, 4:03 AM CDTDense Fog AdvisoryDVNClinton, Des Moines, Henry, Lee, Louisa, Muscatine and 1 more5 hr
Jun 1, 12:47 PM CDTSevere Thunderstorm WarningDVNCedar, Scott43 min
Jun 1, 12:53 PM CDTTornado WarningDVNCedar, Scott52 min
Jun 1, 1:44 PM CDTSevere Thunderstorm WarningDVNScott47 min
Jun 1, 1:50 PM CDTSevere Thunderstorm WarningDVNClinton55 min
Jun 1, 1:58 PM CDTTornado WarningDVNJackson47 min
Jun 1, 2:34 PM CDTFlash Flood WatchDVNBenton, Henry, Iowa, Jefferson, Johnson, Keokuk and 4 more16 hr

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.