Alert archive / Iowa / Tornado Warnings in 2004
Tornado Warning 8, NWS Des Moines, IA
NWS Des Moines, IA issued this tornado warning at May 8, 2004, 7:29 PM CDT for Dallas County, Madison County, Iowa. It was in force for 31 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 8, 2004, 7:29 PM CDT (00:29 UTC)
- Expired
- May 8, 2004, 8:00 PM CDT
- In force
- 31 min
- Issued by
- NWS Des Moines, IA
- Area
- Counties, with a storm outline in the text
Counties Dallas County, IA, Madison County, IA
The radar
The Des Moines radar (KDMX), 40 km from the middle of the area, began a volume at 00:31 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 8, 3:45 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Omaha, NE (KOAX), launched 00:00Z, 0.5 hours before the alert went out and 194 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.
- Mixed-layer CAPE
- 2163 J/kg
- Mixed-layer CIN
- -22 J/kg
- Mixed-layer LCL
- 2150 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 20 m²/s²
- 0-3 km storm-relative helicity
- 104 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS53 KDMX 090029 TORDMX IAC049-121-090100- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE DES MOINES IA 727 PM CDT SAT MAY 8 2004 THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A * TORNADO WARNING FOR... SOUTHERN DALLAS COUNTY IN CENTRAL IOWA NORTHERN MADISON COUNTY IN SOUTH CENTRAL IOWA * UNTIL 800 PM CDT * AT 726 PM...RADAR INDICATED A THUNDERSTORM WITH A HISTORY OF TORNADOES 3 MILES NORTH OF EARLHAM...OR ABOUT 26 MILES WEST OF DES MOINES...MOVING SOUTHEAST AT 25 MPH. * THE STORM WILL BE... NEAR EARLHAM AROUND 735 PM... 7 MILES SOUTHWEST OF VAN METER AROUND 740 PM... NEAR WINTERSET MADISON COUNTY AIRPORT AROUND 755 PM AND 3 MILES NORTHEAST OF WINTERSET AROUND 800 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. AT 728 PM...QUARTER TO HALF DOLLAR SIZED HAIL WAS REPORTED BY LAW ENFORCEMENT JUST WEST OF ADEL A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM SATURDAY EVENING FOR NORTHERN IOWA. LAT...LON 4158 9401 4157 9425 4123 9418 4136 9380 $$ FORSTER
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 8, 7:03 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Wright | 42 min |
| May 8, 7:05 PM CDT | Severe Thunderstorm Warning | DMX | Guthrie | 25 min |
| May 8, 7:14 PM CDT | Severe Thunderstorm Warning | DMX | Polk | 31 min |
| May 8, 7:16 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Franklin | 59 min |
| May 8, 7:32 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Guthrie | 28 min |
| May 8, 7:57 PM CDT | Flash Flood Warning | DMX | Greene, Guthrie, Kossuth | 129 days |
| May 8, 7:59 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Madison, Warren | 46 min |
| May 8, 8:05 PM CDT | Severe Thunderstorm Warning | DMX | Guthrie | 40 min |
| May 8, 8:43 PM CDT | Severe Thunderstorm Warning | DMX | Madison | 47 min |
| May 8, 8:46 PM CDT | Severe Thunderstorm Warning | DMX | Adair | 44 min |
| May 8, 8:56 PM CDT | Flash Flood Warning | DMX | Audubon, Emmet, Palo Alto | 129 days |
| May 8, 9:01 PM CDT | Flash Flood Warning | DMX | Adair, Madison, Winnebago | 129 days |
| May 8, 9:13 PM CDT | Severe Thunderstorm Warning | DMX | Cass | 47 min |
| May 8, 9:29 PM CDT | Severe Thunderstorm Warning | DMX | Madison | 31 min |
| May 8, 9:41 PM CDT | Severe Thunderstorm Warning | DMX | Adair | 49 min |
| May 8, 10:01 PM CDT | Severe Thunderstorm Warning | DMX | Madison | 44 min |
| May 8, 10:29 PM CDT | Severe Thunderstorm Warning | DMX | Union | 46 min |
Nearby
Tornado Warnings in Iowa, 2004Every tornado warning in 2004Tornadoes 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.