Alert archive / Iowa / Tornado Warnings in 2004
Tornado Warning 102, NWS Des Moines, IA
NWS Des Moines, IA issued this tornado warning at Aug 26, 2004, 6:54 PM CDT for Greene County, Iowa. It was in force for 51 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
- Aug 26, 2004, 6:54 PM CDT (23:54 UTC)
- Expired
- Aug 26, 2004, 7:45 PM CDT
- In force
- 51 min
- Issued by
- NWS Des Moines, IA
- Area
- Counties, with a storm outline in the text
County Greene County, IA
The radar
The Des Moines radar (KDMX), 71 km from the middle of the area, began a volume at 23:54 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 |
|---|---|---|---|
| Aug 26, 4:10 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 11.9 hours before the alert went out and 179 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
- 67 J/kg
- Mixed-layer CIN
- -399 J/kg
- Mixed-layer LCL
- 1850 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 74 m²/s²
- 0-3 km storm-relative helicity
- 52 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 262354 TORDMX IAC073-270045- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE DES MOINES IA 655 PM CDT THU AUG 26 2004 THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A * TORNADO WARNING FOR... GREENE COUNTY IN WEST CENTRAL IOWA * UNTIL 745 PM CDT * AT 650 PM CDT...RADAR INDICATED A THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 7 MILES SOUTH OF SCRANTON...OR ABOUT 45 MILES SOUTHWEST OF FORT DODGE...MOVING NORTHEAST AT 25 MPH. * THE STORM WILL BE... 6 MILES SOUTHEAST OF SCRANTON AROUND 700 PM CDT... NEAR JEFFERSON AROUND 710 PM CDT... NEAR JEFFERSON MUNICIPAL AIRPORT AROUND 715 PM CDT... 9 MILES NORTHWEST OF RIPPEY AROUND 720 PM CDT... NEAR GRAND JUNCTION AROUND 725 PM CDT AND NEAR DANA AROUND 730 PM CDT. THIS WARNING REPLACES THE SEVERE THUNDERSTORM WARNING PREVIOUSLY ISSUED FOR THE WARNED AREA. 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 1000 PM CDT THURSDAY EVENING FOR IOWA. LAT...LON 4220 9464 4186 9463 4187 9418 4220 9419 $$ SMALL
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 26, 3:53 PM CDT | Severe Thunderstorm Warning | DMX | Hancock | 52 min |
| Aug 26, 3:57 PM CDT | Tornado Warning | DMX | Pocahontas | 48 min |
| Aug 26, 4:07 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt | 53 min |
| Aug 26, 4:19 PM CDT | Severe Thunderstorm Warning | DMX | Wright | 41 min |
| Aug 26, 4:46 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Hancock | 59 min |
| Aug 26, 4:48 PM CDT | Tornado Warning | DMX | Humboldt | 42 min |
| Aug 26, 5:04 PM CDT | Tornado Warning | DMX | Wright | 41 min |
| Aug 26, 5:46 PM CDT | Tornado Warning | DMX | Wright | 29 min |
| Aug 26, 6:37 PM CDT | Severe Thunderstorm Warning | DMX | Sac | 53 min |
| Aug 26, 6:41 PM CDT | Tornado Warning | DMX | Crawford | 49 min |
| Aug 26, 6:42 PM CDT | Severe Thunderstorm Warning | DMX | Greene | 48 min |
| Aug 26, 6:52 PM CDT | Tornado Warning | DMX | Taylor | 53 min |
| Aug 26, 6:55 PM CDT | Tornado Warning | DMX | Sac | 50 min |
| Aug 26, 6:56 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Cass | 44 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.