Alert archive / Iowa / Tornado Warnings in 2008

Tornado Warning 39, NWS Des Moines, IA

June 4, 20084 counties in Iowa

NWS Des Moines, IA issued this tornado warning at Jun 4, 2008, 6:56 PM CDT for 4 counties in Iowa. It was in force for 34 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 4, 2008, 6:56 PM CDT (23:56 UTC)
Expired
Jun 4, 2008, 7:30 PM CDT
In force
34 min
Issued by
NWS Des Moines, IA
Area
Storm-based polygon

Counties Adams County, IA, Ringgold County, IA, Taylor County, IA, Union County, IA

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 4, 5:40 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 11.9 hours before the alert went out and 166 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, Omaha, NE at 12:00Z on 2008-06-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 167 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, Omaha, NE at 12:00Z on 2008-06-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 51 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
167 J/kg
Mixed-layer CIN
-157 J/kg
Mixed-layer LCL
739 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
51 m²/s²
0-3 km storm-relative helicity
142 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 042355
TORDMX
IAC003-159-173-175-050030-
/O.NEW.KDMX.TO.W.0039.080604T2356Z-080605T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
656 PM CDT WED JUN 4 2008

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN RINGGOLD COUNTY IN SOUTH CENTRAL IOWA...
  SOUTHWESTERN UNION COUNTY IN SOUTH CENTRAL IOWA...
  SOUTHEASTERN ADAMS COUNTY IN SOUTHWEST IOWA...
  NORTHEASTERN TAYLOR COUNTY IN SOUTHWEST IOWA...

* UNTIL 730 PM CDT.

* AT 653 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR
  CLEARFIELD...OR 69 MILES SOUTHWEST OF DES MOINES...MOVING NORTH AT
  18 MPH.

* THE TORNADO WILL BE NEAR...
  KENT BY 725 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 TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT THURSDAY MORNING
FOR SOUTHERN IOWA.

LAT...LON 4098 9455 4098 9430 4079 9444 4079 9452
TIME...MOT...LOC 2356Z 184DEG 16KT 4082 9447

$$

SMALL
1 follow-up statement
000 
WWUS53 KDMX 050008
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
708 PM CDT WED JUN 4 2008

IAC003-173-050018-
/O.CAN.KDMX.TO.W.0039.000000T0000Z-080605T0030Z/
TAYLOR IA-ADAMS IA-
708 PM CDT WED JUN 4 2008

...THE TORNADO WARNING FOR SOUTHEASTERN ADAMS AND NORTHEASTERN TAYLOR
COUNTIES IS CANCELLED...

AT 706 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE
THUNDERSTORMS WHICH PROMPTED THE WARNING HAVE EITHER WEAKENED OR
MOVED OUT OF THE AREA...AND NO LONGER POSE AN IMMEDIATE THREAT TO
LIFE OR PROPERTY. THEREFORE...THE TORNADO WARNING HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT THURSDAY MORNING
FOR SOUTHERN IOWA.

LAT...LON 4098 9448 4098 9430 4092 9434 4092 9435
      4091 9435 4091 9436 4090 9435 4086 9439
      4085 9448
TIME...MOT...LOC 0008Z 189DEG 18KT 4088 9445

$$

IAC159-175-050030-
/O.CON.KDMX.TO.W.0039.000000T0000Z-080605T0030Z/
RINGGOLD IA-UNION IA-
708 PM CDT WED JUN 4 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR
SOUTHWESTERN UNION AND NORTHWESTERN RINGGOLD COUNTIES...

AT 706 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED 6 MILES SOUTH OF
KENT...OR 66 MILES SOUTHWEST OF DES MOINES...MOVING NORTH AT 21 MPH.

THE TORNADO WILL BE NEAR...
  KENT BY 725 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.

LAT...LON 4098 9448 4098 9430 4092 9434 4092 9435
      4091 9435 4091 9436 4090 9435 4086 9439
      4085 9448
TIME...MOT...LOC 0008Z 189DEG 18KT 4088 9445

$$

SMALL

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 4, 4:16 AM CDTFlash Flood WatchDMXAdair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more27 hr
Jun 4, 9:19 AM CDTRiver Flood WarningDMXPolk, Story69 hr
Jun 4, 5:25 PM CDTSevere Thunderstorm WarningDMXAdams, Taylor50 min
Jun 4, 6:16 PM CDTSevere Thunderstorm WarningDMXAdams33 min
Jun 4, 6:30 PM CDTSevere Thunderstorm WarningDMXAdair, Adams, Madison, Union45 min
Jun 4, 6:38 PM CDTTornado WarningDMXAdams, Union37 min
Jun 4, 6:53 PM CDTTornado WarningDMXMadison, Union37 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; the sounding from the Mesonet's radiosonde archive.