Alert archive / Iowa / Tornado Warnings in 2008

Tornado Warning 4, NWS Des Moines, IA

April 10, 2008Appanoose County, Wayne County, Iowa

NWS Des Moines, IA issued this tornado warning at Apr 10, 2008, 4:52 PM CDT for Appanoose County, Wayne County, Iowa. It was in force for 23 min. 7 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
Apr 10, 2008, 4:52 PM CDT (21:52 UTC)
Expired
Apr 10, 2008, 5:15 PM CDT
In force
23 min
Issued by
NWS Des Moines, IA
Area
Storm-based polygon

Counties Appanoose County, IA, Wayne County, IA

The radar

The Des Moines radar (KDMX), 127 km from the middle of the area, began a volume at 21:53 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
Apr 10, 4:52 PM CDTTSTM WND DMG5 S Seymour, IAMETAL BUILDING DAMAGED.
Apr 10, 4:53 PM CDTTSTM WND DMG3 Sse Seymour, IAPOWER POLES DOWN.
Apr 10, 4:57 PM CDTTORNADO2 Ese Seymour, IADAMAGE TO HOUSE AND POWER POLES.
Apr 10, 5:01 PM CDTTORNADONuma, IALAW ENFORCEMENT REPORTS A TORNADO ON THE GROUND NEAR NUMA MOVING NORTHWEST.
Apr 10, 5:10 PM CDTTORNADO11 Nw Centerville, IANUMEROUS MOBILE HOMES DAMAGED AT ANTLER ACRES SUBDIVISION.
Apr 10, 5:15 PM CDTTSTM WND DMG2 Wsw Moravia, IARELAYED REPORT FROM PUBLIC OF WIND DAMAGE TO RESIDENCES WEST AND SOUTH OF ICONIUM. NO INJURIES REPORTED.
Apr 10, 5:20 PM CDTTORNADOMoravia, IALAW ENFORCEMENT REPORTS TORNADO IN MORAVIA MOVING NORTHEASTWARD WITH DAMAGE TO A GARAGE AND A HOUSE.

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.

IssuedProductOfficeLasted
Apr 10, 2:28 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 9.9 hours before the alert went out and 236 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 2008-04-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2008-04-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 305 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
475 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
305 m²/s²
0-3 km storm-relative helicity
419 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 102152
TORDMX
IAC007-185-102215-
/O.NEW.KDMX.TO.W.0004.080410T2152Z-080410T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
452 PM CDT THU APR 10 2008

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN APPANOOSE COUNTY IN SOUTH CENTRAL IOWA...
  EASTERN WAYNE COUNTY IN SOUTH CENTRAL IOWA...

* UNTIL 515 PM CDT.

* AT 449 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 10 MILES SOUTH
  OF SEYMOUR...OR 8 MILES NORTHWEST OF UNIONVILLE...MOVING NORTHEAST
  AT 61 MPH.

* THE TORNADO WILL BE NEAR...
  SEYMOUR BY 500 PM CDT...
  7 MILES NORTHWEST OF CENTERVILLE BY 505 PM CDT...

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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM CDT
THURSDAY EVENING FOR SOUTHERN IOWA.

LAT...LON 4058 9325 4090 9312 4090 9265 4058 9297
TIME...MOT...LOC 2152Z 204DEG 53KT 4058 9310

$$

KINNEY
3 follow-up statements
000 
WWUS53 KDMX 102157
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
457 PM CDT THU APR 10 2008

IAC007-185-102215-
/O.CON.KDMX.TO.W.0004.000000T0000Z-080410T2215Z/
APPANOOSE IA-WAYNE IA-
457 PM CDT THU APR 10 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CDT FOR EASTERN
WAYNE AND NORTHWESTERN APPANOOSE COUNTIES...

AT 453 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED 6 MILES SOUTH OF
SEYMOUR...OR 9 MILES NORTHWEST OF UNIONVILLE...MOVING NORTHEAST AT 61
MPH.

THE TORNADO WILL BE NEAR...
  MYSTIC...PLANO AND 7 MILES NORTHWEST OF CENTERVILLE BY 505 PM
  CDT...
  RATHBUN BY 510 PM CDT...
  MORAVIA BY 515 PM CDT...

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

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT THURSDAY EVENING
FOR SOUTHERN IOWA.

LAT...LON 4058 9325 4090 9312 4090 9265 4058 9297
TIME...MOT...LOC 2157Z 204DEG 53KT 4065 9306

$$

KINNEY
000 
WWUS53 KDMX 102206
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
506 PM CDT THU APR 10 2008

IAC007-185-102215-
/O.CON.KDMX.TO.W.0004.000000T0000Z-080410T2215Z/
APPANOOSE IA-WAYNE IA-
506 PM CDT THU APR 10 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CDT FOR EASTERN
WAYNE AND NORTHWESTERN APPANOOSE COUNTIES...

AT 501 PM CDT...A TORNADO WAS REPORTED.  THIS TORNADO WAS LOCATED
NEAR NUMA...OR 16 MILES NORTH OF UNIONVILLE...MOVING NORTHEAST AT 61
MPH.

THE TORNADO WILL BE NEAR...
  MORAVIA BY 515 PM CDT...

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

AT 501 PM CDT...LAW ENFORCEMENT REPORTED A TORNADO NEAR NUMA MOVING 
NORTHWEST. 

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT THURSDAY EVENING
FOR SOUTHERN IOWA.

A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 900 PM CDT
THURSDAY EVENING FOR SOUTHWESTERN IOWA.

LAT...LON 4058 9325 4090 9312 4090 9265 4058 9297
TIME...MOT...LOC 2206Z 204DEG 53KT 4077 9299

$$
000 
WWUS53 KDMX 102209
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
508 PM CDT THU APR 10 2008

IAC007-185-102215-
/O.CON.KDMX.TO.W.0004.000000T0000Z-080410T2215Z/
APPANOOSE IA-WAYNE IA-
508 PM CDT THU APR 10 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CDT FOR EASTERN
WAYNE AND NORTHWESTERN APPANOOSE COUNTIES...

AT 505 PM CDT...LOCAL LAW ENFORCEMENT REPORTED A TORNADO.  THIS
TORNADO WAS LOCATED NEAR MYSTIC...OR 19 MILES NORTH OF UNIONVILLE...
MOVING NORTHEAST AT 72 MPH.

THE TORNADO WILL BE NEAR...
  NEAR MYSTIC BY 510 PM CDT...
  NEAR RATHBUN BY 513 PM CDT..
  MORAVIA BY 515 PM CDT...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT THURSDAY EVENING 
FOR SOUTHERN IOWA.

LAT...LON 4058 9325 4090 9312 4090 9265 4058 9297
TIME...MOT...LOC 2208Z 219DEG 63KT 4079 9293

$$

KINNEY

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 9, 9:53 PM CDTRiver Flood WarningDMXLucas60 hr
Apr 10, 4:17 AM CDTWind AdvisoryDMXAdair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more17 hr
Apr 10, 4:24 PM CDTTornado WarningDMXClarke, Decatur, Lucas, Wayne51 min
Apr 10, 4:49 PM CDTTornado WarningDMXClarke, Lucas, Warren26 min
Apr 10, 5:11 PM CDTTornado WarningDMXAppanoose, Mahaska, Marion, Monroe, Wapello34 min
Apr 10, 5:25 PM CDTTornado WarningDMXMahaska, Marion20 min
Apr 10, 5:42 PM CDTTornado WarningDMXMahaska, Poweshiek48 min
Apr 10, 6:11 PM CDTSevere Thunderstorm WarningDMXAppanoose, Davis, Monroe35 min
Apr 10, 6:27 PM CDTTornado WarningDMXPoweshiek, Tama48 min

Nearby

Tornado Warnings in Iowa, 2008Every tornado warning in 2008Tornadoes in 2008

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.