Alert archive / Iowa / Tornado Warnings in 2004

Tornado Warning 57, NWS Des Moines, IA

May 24, 2004Warren County, Iowa

NWS Des Moines, IA issued this tornado warning at May 24, 2004, 6:45 PM CDT for Warren County, Iowa. It was in force for 30 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: May 24, 2004, 6:45 PM CDT (23:45 UTC)
Expired: May 24, 2004, 7:15 PM CDT
In force: 30 min
Issued by: NWS Des Moines, IA
Area: Counties, with a storm outline in the text

County Warren County, IA

The radar

The Des Moines radar (KDMX), 38 km from the middle of the area, began a volume at 23:48 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
May 24, 11:30 AM CDT	Tornado Watch	SPC	11 hr
May 24, 2:35 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 11.8 hours before the alert went out and 230 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: 731 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 210 m²/s²
0-3 km storm-relative helicity: 289 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KDMX 242345
TORDMX
IAC181-250015-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
645 PM CDT MON MAY 24 2004

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

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

* UNTIL 715 PM CDT

* AT 643 PM...RADAR INDICATED A THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO 4 MILES WEST OF ST. MARYS...OR ABOUT 21 MILES SOUTHWEST OF
  DES MOINES...MOVING NORTHEAST AT 25 MPH.

* THE STORM WILL BE...

  NEAR ST. MARYS AROUND 650 PM...
  3 MILES SOUTHEAST OF MARTENSDALE AROUND 655 PM...
  4 MILES SOUTHEAST OF SPRING HILL AROUND 705 PM...
  NEAR INDIANOLA AROUND 710 PM AND
  4 MILES NORTHWEST OF ACKWORTH AROUND 715 PM.

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 4150 9379 4124 9378 4124 9336 4149 9338

$$

DONAVON

The office that day

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

Issued	Product	Office	Counties	Lasted
May 24, 2:26 PM CDT	Severe Thunderstorm Warning	DMX	Sac	34 min
May 24, 2:34 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Cass, Guthrie	41 min
May 24, 2:47 PM CDT	Severe Thunderstorm Warning	DMX	Crawford	28 min
May 24, 2:49 PM CDT	Severe Thunderstorm Warning	DMX	Sac	11 min
May 24, 2:58 PM CDT	Severe Thunderstorm Warning	DMX	Audubon	32 min
May 24, 3:00 PM CDT	Severe Thunderstorm Warning	DMX	Sac	45 min
May 24, 3:14 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Cass, Guthrie	46 min
May 24, 3:15 PM CDT	Severe Thunderstorm Warning	DMX	Crawford	45 min
May 24, 3:19 PM CDT	Severe Thunderstorm Warning	DMX	Pocahontas	41 min
May 24, 3:51 PM CDT	Severe Thunderstorm Warning	DMX	Carroll	39 min
May 24, 4:04 PM CDT	Severe Thunderstorm Warning	DMX	Pocahontas	26 min
May 24, 4:06 PM CDT	Severe Thunderstorm Warning	DMX	Humboldt, Webster	39 min
May 24, 4:13 PM CDT	Tornado Warning	DMX	Adair	32 min
May 24, 4:42 PM CDT	Severe Thunderstorm Warning	DMX	Audubon	48 min
May 24, 4:45 PM CDT	Tornado Warning	DMX	Madison	45 min
May 24, 4:57 PM CDT	Flash Flood Warning	DMX	Humboldt	4 hr
May 24, 5:02 PM CDT	Flash Flood Warning	DMX	Dallas, Madison	6 hr
May 24, 5:04 PM CDT	Tornado Warning	DMX	Dallas	56 min
May 24, 5:07 PM CDT	Severe Thunderstorm Warning	DMX	Hamilton	38 min
May 24, 5:12 PM CDT	Flash Flood Warning	DMX	Audubon, Carroll, Greene, Guthrie	6 hr
May 24, 5:18 PM CDT	Severe Thunderstorm Warning	DMX	Guthrie	57 min
May 24, 5:19 PM CDT	Tornado Warning	DMX	Polk	56 min
May 24, 5:30 PM CDT	Tornado Warning	DMX	Madison	15 min
May 24, 5:31 PM CDT	Flash Flood Warning	DMX	Boone	6 hr
May 24, 5:36 PM CDT	Tornado Warning	DMX	Warren	24 min
May 24, 5:39 PM CDT	Flash Flood Warning	DMX	Polk	6 hr
May 24, 5:43 PM CDT	Tornado Warning	DMX	Madison	32 min
May 24, 5:59 PM CDT	Tornado Warning	DMX	Warren	46 min
May 24, 6:17 PM CDT	Severe Thunderstorm Warning	DMX	Dallas, Polk	28 min
May 24, 6:21 PM CDT	Severe Thunderstorm Warning	DMX	Taylor	39 min
May 24, 6:26 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Story	64 min
May 24, 6:26 PM CDT	Tornado Warning	DMX	Madison	49 min
May 24, 6:28 PM CDT	Flash Flood Warning	DMX	Taylor	19 hr
May 24, 6:35 PM CDT	Tornado Warning	DMX	Taylor	40 min
May 24, 6:38 PM CDT	Flash Flood Warning	DMX	Marion	18 hr
May 24, 6:41 PM CDT	Tornado Warning	DMX	Marion	49 min
May 24, 6:42 PM CDT	Flash Flood Warning	DMX	Warren	18 hr
May 24, 6:44 PM CDT	Severe Thunderstorm Warning	DMX	Polk	46 min
May 24, 6:47 PM CDT	Tornado Warning	DMX	Monroe	43 min
May 24, 6:52 PM CDT	Flash Flood Warning	DMX	Decatur, Ringgold	18 hr
May 24, 6:52 PM CDT	Tornado Warning	DMX	Ringgold	38 min
May 24, 6:55 PM CDT	Flash Flood Warning	DMX	Mahaska	18 hr

Nearby

Tornado Warnings in Iowa, 2004 Every tornado warning in 2004 Tornadoes in 2004

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.