Alert archive / Iowa / Tornado Warnings in 2004
Tornado Warning 20, NWS La Crosse, WI
NWS La Crosse, WI issued this tornado warning at Jul 5, 2004, 5:52 PM CDT for Howard County, Iowa. It was in force for 38 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
- Jul 5, 2004, 5:52 PM CDT (22:52 UTC)
- Expired
- Jul 5, 2004, 6:30 PM CDT
- In force
- 38 min
- Issued by
- NWS La Crosse, WI
- Area
- Counties, with a storm outline in the text
County Howard County, IA
The radar
The La Crosse radar (KARX), 94 km from the middle of the area, began a volume at 22:53 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 |
|---|---|---|---|
| Jul 5, 4:20 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 10.9 hours before the alert went out and 203 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
- 12 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 548 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 44 m²/s²
- 0-3 km storm-relative helicity
- 85 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 KARX 052252 TORARX IAC089-052330- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE LA CROSSE WI 551 PM CDT MON JUL 5 2004 THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A * TORNADO WARNING FOR... EASTERN HOWARD COUNTY IN NORTHEAST IOWA * UNTIL 630 PM CDT * AT 551 PM CDT...NATIONAL WEATHER SERVICE RADAR DETECTED A TORNADO OVER COUNTY ROADS V 58 AND A 46...OR ABOUT 4 MILES SOUTH OF CRESCO. THE TORNADO WAS MOVING NORTH AT 15 MPH. * THE TORNADO WILL BE NEAR... CRESCO AROUND 605 PM CDT... BONAIR AROUND 625 PM CDT... A TORNADO IS BEING DETECTED BY RADAR. THIS MEANS THAT A TORNADO MAY NOT BE OCCURRING WHEN THE WARNING IS ISSUED...BUT ONE IS EXPECTED TO DEVELOP. TAKE COVER IN A BASEMENT OR IN AN INTERIOR ROOM ON THE LOWEST FLOOR AND STAY AWAY FROM WINDOWS CARS AND MOBILE HOMES SHOULD BE ABANDONED FOR A STURDY BUILDING. AS A LAST RESORT...LAY FLAT IN A DITCH AND COVER YOUR HEAD. LAT...LON 4324 9220 4325 9209 4349 9208 4349 9221 $$ THOMPSON
The office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 5, 4:39 PM CDT | Flash Flood Warning | ARX | Fayette | 4 hr |
| Jul 5, 5:13 PM CDT | Tornado Warning | ARX | Fayette | 32 min |
| Jul 5, 6:33 PM CDT | Tornado Warning | ARX | Fayette | 27 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.