Alert archive / Iowa / Tornado Warnings in 2008

Tornado Warning 57, NWS Des Moines, IA

June 6, 2008Marion County, Warren County, Iowa

NWS Des Moines, IA issued this tornado warning at Jun 6, 2008, 12:02 AM CDT for Marion County, Warren County, Iowa. It was in force for 43 min. 2 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 6, 2008, 12:02 AM CDT (05:02 UTC)
Expired: Jun 6, 2008, 12:45 AM CDT
In force: 43 min
Issued by: NWS Des Moines, IA
Area: Storm-based polygon

Counties Marion County, IA, Warren County, IA

The radar

The Des Moines radar (KDMX), 43 km from the middle of the area, began a volume at 05:03 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

Time	Report	Where	Remark
Jun 6, 12:13 AM CDT	TSTM WND DMG	7 Ssw Milo, IA	SEVERE TREES DOWN WEST OF LIBERTY CENTER
Jun 6, 12:20 AM CDT	TSTM WND DMG	Sandyville, IA	TREES AND POWER LINES DOWN ON HIGHWAY 92. EXTENSIVE DAMAMGE ALSO REPORTED IN THE TOWN.

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.

Issued	Product	Office	Lasted
Jun 5, 5:50 PM CDT	Tornado Watch PDS	SPC	7 hr
Jun 5, 9:14 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 5.0 hours before the alert went out and 244 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: 2054 J/kg
Mixed-layer CIN: -33 J/kg
Mixed-layer LCL: 905 m above ground
0-6 km bulk shear: 72 kt
0-1 km storm-relative helicity: 280 m²/s²
0-3 km storm-relative helicity: 303 m²/s²
Significant tornado parameter: 4.0
Supercell composite: 14.0

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KDMX 060502
TORDMX
IAC125-181-060545-
/O.NEW.KDMX.TO.W.0057.080606T0502Z-080606T0545Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
1202 AM CDT FRI JUN 6 2008

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN MARION COUNTY IN SOUTH CENTRAL IOWA...
  WARREN COUNTY IN SOUTH CENTRAL IOWA...

* UNTIL 1245 AM CDT.

* AT 1159 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 8 MILES
  SOUTHEAST OF NEW VIRGINIA...OR 33 MILES SOUTH OF DES MOINES...
  MOVING NORTHEAST AT 55 MPH.

* THE TORNADO WILL BE NEAR...
  NEW VIRGINIA BY 1205 AM CDT...
  MILO BY 1215 AM CDT...
  ACKWORTH AND INDIANOLA BY 1220 AM CDT...
  SANDYVILLE BY 1225 AM CDT...
  HARTFORD...SWAN AND CARLISLE BY 1230 AM 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.

LAT...LON 4116 9374 4151 9361 4151 9343 4149 9340
      4150 9337 4149 9337 4149 9333 4151 9333
      4151 9318 4116 9343
TIME...MOT...LOC 0502Z 208DEG 48KT 4113 9362

$$

DONAVON

3 follow-up statements

000 
WWUS53 KDMX 060517
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
1218 AM CDT FRI JUN 6 2008

IAC125-181-060545-
/O.CON.KDMX.TO.W.0057.000000T0000Z-080606T0545Z/
MARION IA-WARREN IA-
1218 AM CDT FRI JUN 6 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT FOR EASTERN
WARREN AND NORTHWESTERN MARION COUNTIES...

AT 1213 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR MILO...OR 22 MILES
SOUTH OF DES MOINES...MOVING NORTHEAST AT 50 MPH.

THE TORNADO WILL BE NEAR...
  HARTFORD AND 7 MILES SOUTHEAST OF CARLISLE BY 1225 AM CDT...
  SWAN BY 1230 AM 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 4116 9356 4151 9353 4151 9343 4149 9340
      4150 9337 4149 9336 4149 9333 4151 9333
      4151 9318 4116 9343
TIME...MOT...LOC 0518Z 211DEG 56KT 4134 9345

$$

KINNEY

000 
WWUS53 KDMX 060528
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
1228 AM CDT FRI JUN 6 2008

IAC125-181-060545-
/O.CON.KDMX.TO.W.0057.000000T0000Z-080606T0545Z/
MARION IA-WARREN IA-
1228 AM CDT FRI JUN 6 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT FOR
NORTHEASTERN WARREN AND NORTHWESTERN MARION COUNTIES...

AT 1227 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR SWAN...OR 18 MILES
SOUTHEAST OF DES MOINES...MOVING NORTHEAST AT 55 MPH.

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 4136 9343 4150 9343 4149 9340 4150 9337
      4149 9336 4149 9333 4151 9333 4151 9318
      4133 9331
TIME...MOT...LOC 0528Z 213DEG 62KT 4147 9330

$$

KINNEY

000 
WWUS53 KDMX 060540
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
1239 AM CDT FRI JUN 6 2008

IAC125-181-060549-
/O.EXP.KDMX.TO.W.0057.000000T0000Z-080606T0545Z/
MARION IA-WARREN IA-
1239 AM CDT FRI JUN 6 2008

...THE TORNADO WARNING FOR NORTHEASTERN WARREN AND NORTHWESTERN
MARION COUNTIES WILL EXPIRE AT 1245 AM CDT...

AT 1236 AM 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.

THIS STORM PRODUCED SIGNIFICANT TREE AND POWER LINE DAMAGE IN AND 
NEAR SANDYVILLE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM CDT FRIDAY MORNING FOR
EASTERN IOWA.

LAT...LON 4136 9343 4150 9343 4149 9340 4150 9337
      4149 9336 4149 9333 4151 9333 4151 9318
      4133 9331
TIME...MOT...LOC 0539Z 213DEG 62KT 4163 9316

$$

KINNEY

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 5, 7:40 PM CDT	Flash Flood Warning	DMX	Adams, Cass	6 hr
Jun 5, 8:00 PM CDT	Tornado Warning	DMX	Adair, Adams, Cass	34 min
Jun 5, 8:25 PM CDT	Tornado Warning	DMX	Adair, Audubon, Cass, Guthrie	36 min
Jun 5, 8:27 PM CDT	Tornado Warning	DMX	Taylor	48 min
Jun 5, 8:30 PM CDT	Flash Flood Warning	DMX	Adair, Adams, Taylor	6 hr
Jun 5, 9:05 PM CDT	Tornado Warning	DMX	Adams, Ringgold, Union	40 min
Jun 5, 9:09 PM CDT	Severe Thunderstorm Warning	DMX	Ringgold, Union	51 min
Jun 5, 9:15 PM CDT	Flash Flood Warning	DMX	Ringgold, Union	6 hr
Jun 5, 9:17 PM CDT	High Wind Warning	DMX	Calhoun, Emmet, Palo Alto, Pocahontas, Sac	4 hr
Jun 5, 9:37 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Clarke, Madison, Union	38 min
Jun 5, 10:01 PM CDT	Severe Thunderstorm Warning	DMX	Clarke, Decatur, Ringgold, Union	44 min
Jun 5, 10:12 PM CDT	Tornado Warning	DMX	Dallas, Polk	21 min
Jun 5, 10:13 PM CDT	River Flood Warning	DMX	Appanoose, Wayne	19 hr
Jun 5, 11:00 PM CDT	Flash Flood Warning	DMX	Adair, Clarke, Madison, Warren	5 hr
Jun 5, 11:14 PM CDT	Flash Flood Warning	DMX	Boone, Dallas, Polk, Story	6 hr
Jun 5, 11:22 PM CDT	Tornado Warning	DMX	Decatur, Ringgold	23 min
Jun 5, 11:30 PM CDT	Flash Flood Warning	DMX	Decatur	4 hr
Jun 5, 11:42 PM CDT	Tornado Warning	DMX	Clarke	33 min
Jun 5, 11:44 PM CDT	Severe Thunderstorm Warning	DMX	Decatur	31 min
Jun 5, 11:55 PM CDT	River Flood Warning	DMX	Polk	9 hr
Jun 5, 11:57 PM CDT	Severe Thunderstorm Warning	DMX	Lucas, Wayne	48 min
Jun 6, 12:20 AM CDT	Severe Thunderstorm Warning	DMX	Marion, Warren	40 min
Jun 6, 12:32 AM CDT	Tornado Warning	DMX	Jasper	28 min
Jun 6, 12:46 AM CDT	River Flood Warning	DMX	Polk	28 hr
Jun 6, 12:47 AM CDT	Severe Thunderstorm Warning	DMX	Marshall	43 min
Jun 6, 12:50 AM CDT	Severe Thunderstorm Warning	DMX	Mahaska, Poweshiek	40 min
Jun 6, 12:55 AM CDT	Flash Flood Warning	DMX	Warren	3 hr
Jun 6, 12:59 AM CDT	Tornado Warning	DMX	Jasper, Marshall, Poweshiek, Tama	46 min
Jun 6, 1:08 AM CDT	Severe Thunderstorm Warning	DMX	Butler, Grundy, Tama	52 min
Jun 6, 1:21 AM CDT	River Flood Warning	DMX	Taylor	5 hr
Jun 6, 1:21 AM CDT	Tornado Warning	DMX	Poweshiek, Tama	24 min
Jun 6, 1:26 AM CDT	Tornado Warning	DMX	Black Hawk, Tama	34 min
Jun 6, 1:36 AM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Bremer	39 min
Jun 6, 3:50 AM CDT	Wind Advisory	DMX	Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more	12 hr
Jun 6, 3:56 AM CDT	Areal Flood Warning	DMX	Madison	20 hr
Jun 6, 4:13 AM CDT	Areal Flood Warning	DMX	Warren	15 hr
Jun 6, 5:03 AM CDT	Areal Flood Warning	DMX	Polk	6 hr
Jun 6, 5:08 AM CDT	Areal Flood Warning	DMX	Story	6 hr
Jun 6, 11:08 AM CDT	Areal Flood Warning	DMX	Polk	6 hr
Jun 6, 11:13 AM CDT	Areal Flood Warning	DMX	Story	24 hr

Nearby

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