Alert archive / Iowa / Tornado Warnings in 2004
Tornado Warning 77, NWS Des Moines, IA
NWS Des Moines, IA issued this tornado warning at Jun 11, 2004, 6:56 PM CDT for Webster County, Iowa. It was in force for 34 min. 11 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 11, 2004, 6:56 PM CDT (23:56 UTC)
- Expired
- Jun 11, 2004, 7:30 PM CDT
- In force
- 34 min
- Issued by
- NWS Des Moines, IA
- Area
- Counties, with a storm outline in the text
County Webster County, IA
The radar
The Des Moines radar (KDMX), 100 km from the middle of the area, began a volume at 23:59 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 11, 6:57 PM CDT | HAIL 1 | 4 S Badger, IA | |
| Jun 11, 7:00 PM CDT | TSTM WND DMG | 2 E Badger, IA | SEVERAL TREES DOWNED. 70 MPH WINDS. PENNY SIZED HAIL. |
| Jun 11, 7:00 PM CDT | HAIL 1 | Fort Dodge, IA | |
| Jun 11, 7:02 PM CDT | HAIL 0.75 | Fort Dodge, IA | |
| Jun 11, 7:05 PM CDT | HAIL 1.25 | Ne Fort Dodge, IA | |
| Jun 11, 7:07 PM CDT | HAIL 1.25 | 1 Sse Fort Dodge, IA | |
| Jun 11, 7:09 PM CDT | HAIL 1.75 | Fort Dodge, IA | |
| Jun 11, 7:11 PM CDT | HAIL 1 | Fort Dodge, IA | |
| Jun 11, 7:12 PM CDT | HAIL 0.88 | Fort Dodge, IA | |
| Jun 11, 7:20 PM CDT | HAIL 1.75 | 2 Ne Otho, IA | |
| Jun 11, 7:25 PM CDT | HAIL 1 | 3 Nw Duncombe, IA |
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 11, 1:45 PM CDT | Tornado Watch | SPC | 5 hr |
| Jun 11, 5:00 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 223 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
- 1910 J/kg
- Mixed-layer CIN
- -24 J/kg
- Mixed-layer LCL
- 636 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 136 m²/s²
- 0-3 km storm-relative helicity
- 161 m²/s²
- Significant tornado parameter
- 1.5
- Supercell composite
- 6.5
The text
As transmitted, in the capitals the NWS used until 2016.
361 WFUS53 KDMX 112356 TORDMX IAC187-120030- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE DES MOINES IA 656 PM CDT FRI JUN 11 2004 THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A * TORNADO WARNING FOR... NORTHERN WEBSTER COUNTY IN CENTRAL IOWA THIS INCLUDES THE CITY OF FORT DODGE * UNTIL 730 PM CDT * AT 655 PM...RADAR INDICATED A THUNDERSTORM WITH A HISTORY OF TORNADOES 3 MILES SOUTHWEST OF FORT DODGE...MOVING EAST AT 20 MPH. * THE STORM WILL BE... NEAR FORT DODGE AROUND 700 PM... 5 MILES SOUTH OF FORT DODGE REGIONAL AIRPORT AROUND 705 PM... 8 MILES SOUTH OF BADGER AROUND 715 PM... 3 MILES NORTH OF DUNCOMBE AROUND 725 PM AND 5 MILES SOUTH OF VINCENT AROUND 730 PM. THIS REPLACES THE PREVIOUS TORNADO WARNING. 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 4263 9444 4238 9435 4245 9397 4264 9399 $$ COGIL
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 3:44 AM CDT | Severe Thunderstorm Warning | DMX | Sac | 46 min |
| Jun 11, 2:28 PM CDT | Tornado Warning | DMX | Palo Alto | 57 min |
| Jun 11, 3:24 PM CDT | Tornado Warning | DMX | Emmet, Palo Alto | 56 min |
| Jun 11, 4:01 PM CDT | Tornado Warning | DMX | Kossuth | 44 min |
| Jun 11, 4:20 PM CDT | Severe Thunderstorm Warning | DMX | Emmet | 25 min |
| Jun 11, 4:39 PM CDT | Severe Thunderstorm Warning | DMX | Palo Alto | 51 min |
| Jun 11, 4:45 PM CDT | Tornado Warning | DMX | Palo Alto | 45 min |
| Jun 11, 4:47 PM CDT | Severe Thunderstorm Warning | DMX | Emmet, Kossuth | 58 min |
| Jun 11, 5:22 PM CDT | Severe Thunderstorm Warning | DMX | Kossuth | 53 min |
| Jun 11, 6:00 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Pocahontas, Webster | 45 min |
| Jun 11, 6:09 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt | 51 min |
| Jun 11, 6:14 PM CDT | Flash Flood Warning | DMX | Kossuth | 3 hr |
| Jun 11, 6:17 PM CDT | Severe Thunderstorm Warning | DMX | Kossuth | 43 min |
| Jun 11, 6:24 PM CDT | Severe Thunderstorm Warning | DMX | Hancock | 56 min |
| Jun 11, 6:28 PM CDT | Severe Thunderstorm Warning | DMX | Taylor | 47 min |
| Jun 11, 6:36 PM CDT | Tornado Warning | DMX | Webster | 24 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.