Alert archive / Iowa / Tornado Warnings in 2006

Tornado Warning 22, NWS Des Moines, IA

April 15, 2006Appanoose County, Iowa

NWS Des Moines, IA issued this tornado warning at Apr 15, 2006, 10:06 PM CDT for Appanoose County, Iowa. It was in force for 39 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: Apr 15, 2006, 10:06 PM CDT (03:06 UTC)
Expired: Apr 15, 2006, 10:45 PM CDT
In force: 39 min
Issued by: NWS Des Moines, IA
Area: Counties, with a storm outline in the text

County Appanoose County, IA

The radar

The Des Moines radar (KDMX), 132 km from the middle of the area, began a volume at 03:07 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
Apr 15, 5:28 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 3.1 hours before the alert went out and 225 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2772 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 190 m²/s²
0-3 km storm-relative helicity: 191 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 KDMX 160306
TORDMX
IAC007-160345-
/O.NEW.KDMX.TO.W.0022.060416T0306Z-060416T0345Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
1006 PM CDT SAT APR 15 2006

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* TORNADO WARNING FOR...
  APPANOOSE COUNTY IN SOUTH CENTRAL IOWA.

* UNTIL 1045 PM CDT.

* AT 1003 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 8 MILES NORTHWEST OF UNIONVILLE...AND MOVING
  NORTHEAST AT 45 MPH.

* THIS STORM WILL BE...
  NEAR CINCINNATI BY 1015 PM CDT.
  NEAR EXLINE BY 1020 PM CDT.
  NEAR CENTERVILLE BY 1025 PM CDT.
  NEAR UDELL BY 1035 PM CDT.

THE LOCATIONS OF NUMA...RATHBUN AND UNIONVILLE ARE ALSO IN THE PATH.

IN ADDITION TO THE TORNADO...THIS STORM IS ALSO EXPECTED TO PRODUCE 
PENNY SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

THIS IS A HAZARDOUS SITUATION. SEEK SHELTER IN A BASEMENT...OR IN AN
INTERIOR ROOM. STAY AWAY FROM WINDOWS. IF YOU ARE OUTSIDE OR IN A
CAR...SEEK SHELTER IN A REINFORCED BUILDING.

LAT...LON 4059 9309 4060 9264 4089 9265 4090 9308

$$

KINNEY

2 follow-up statements

000 
WWUS53 KDMX 160324
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
1024 PM CDT SAT APR 15 2006

IAC007-160345-
/O.CON.KDMX.TO.W.0022.000000T0000Z-060416T0345Z/
APPANOOSE IA-
1024 PM CDT SAT APR 15 2006

...A TORNADO WARNING REMAINS IN EFFECT FOR APPANOOSE COUNTY UNTIL
1045 PM CDT...

AT 1020 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR CENTERVILLE...OR 17 MILES NORTH OF
UNIONVILLE...AND MOVING NORTHEAST AT 50 MPH.

THIS TORNADIC STORM WILL BE...
  NEAR UDELL BY 1030 PM CDT.
  NEAR UNIONVILLE BY 1035 PM CDT.

THE LOCATIONS OF MYSTIC...RATHBUN AND MORAVIA ARE ALSO IN THE PATH OF
THIS TORNADO.

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
PENNY SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS OF 60 TO 70 MPH.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT SUNDAY MORNING
FOR SOUTHWESTERN IOWA.

LAT...LON 4059 9309 4060 9264 4089 9265 4090 9308

$$

KINNEY

000 
WWUS53 KDMX 160345
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
1046 PM CDT SAT APR 15 2006

IAC007-160356-
/O.EXP.KDMX.TO.W.0022.000000T0000Z-060416T0345Z/
APPANOOSE IA-
1046 PM CDT SAT APR 15 2006

...THE TORNADO WARNING FOR APPANOOSE COUNTY HAS BEEN ALLOWED TO
EXPIRE...

AT 1041 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE
THUNDERSTORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE AREA.
THEREFORE...THE TORNADO WARNING HAS BEEN ALLOWED TO EXPIRE.

IF SEVERE WEATHER WAS OBSERVED...CONTACT THE NATIONAL WEATHER SERVICE
OFFICE IN DES MOINES AT 1-800-759-9276.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT SUNDAY MORNING
FOR SOUTHWESTERN IOWA.

LAT...LON 4059 9309 4060 9264 4089 9265 4090 9308

$$

KINNEY

The office that day

Everything else NWS Des Moines, IA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 15, 7:13 PM CDT	Severe Thunderstorm Warning	DMX	Audubon	47 min
Apr 15, 7:19 PM CDT	Severe Thunderstorm Warning	DMX	Cass	41 min
Apr 15, 7:25 PM CDT	Severe Thunderstorm Warning	DMX	Crawford	50 min
Apr 15, 7:25 PM CDT	Severe Thunderstorm Warning	DMX	Adams	35 min
Apr 15, 8:01 PM CDT	Severe Thunderstorm Warning	DMX	Cass	44 min
Apr 15, 8:07 PM CDT	Tornado Warning	DMX	Audubon	23 min
Apr 15, 8:14 PM CDT	Severe Thunderstorm Warning	DMX	Crawford	21 min
Apr 15, 8:30 PM CDT	Severe Thunderstorm Warning	DMX	Audubon	45 min
Apr 15, 8:44 PM CDT	Severe Thunderstorm Warning	DMX	Cass	21 min
Apr 15, 8:53 PM CDT	Severe Thunderstorm Warning	DMX	Dallas, Guthrie	52 min
Apr 15, 8:54 PM CDT	Severe Thunderstorm Warning	DMX	Carroll	66 min
Apr 15, 8:58 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Madison, Union	47 min
Apr 15, 9:06 PM CDT	Tornado Warning	DMX	Carroll	22 min
Apr 15, 9:29 PM CDT	Severe Thunderstorm Warning	DMX	Decatur	31 min
Apr 15, 10:36 PM CDT	Severe Thunderstorm Warning	DMX	Davis, Wapello	39 min
Apr 15, 10:39 PM CDT	Severe Thunderstorm Warning	DMX	Monroe	51 min
Apr 15, 11:06 PM CDT	Severe Thunderstorm Warning	DMX	Mahaska	39 min

Nearby

Tornado Warnings in Iowa, 2006 Every tornado warning in 2006 Tornadoes in 2006

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.