Alert archive / Iowa / Tornado Warnings in 2000
Tornado Warning 9, NWS La Crosse, WI
NWS La Crosse, WI issued this tornado warning at Jul 2, 2000, 4:05 PM CDT for Allamakee County, Winneshiek County, Iowa. It was in force for 55 min. 2 reports came from inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.
The facts
- Issued
- Jul 2, 2000, 4:05 PM CDT (21:05 UTC)
- Expired
- Jul 2, 2000, 5:00 PM CDT
- In force
- 55 min
- Issued by
- NWS La Crosse, WI
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Allamakee County, IA, Winneshiek County, IA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 2, 4:15 PM CDT | Thunderstorm Wind 55 E | Decorah, IA | |
| Jul 2, 4:35 PM CDT | Tornado F0 | Hanover, IA |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
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 2, 3:30 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 9.1 hours before the alert went out and 210 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
- 1145 J/kg
- Mixed-layer CIN
- -52 J/kg
- Mixed-layer LCL
- 890 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 63 m²/s²
- 0-3 km storm-relative helicity
- 25 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.4
The text
As transmitted, in the capitals the NWS used until 2016.
535 WFUS53 KARX 022106 TORLSE IAC005-191-022200- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE LA CROSSE WI 405 PM CDT SUN JUL 2 2000 THE NATIONAL WEATHER SERVICE IN IN LA CROSSE HAS ISSUED A * TORNADO WARNING FOR... ALLAMAKEE COUNTY IN NORTHEAST IOWA EASTERN WINNESHIEK COUNTY IN NORTHEAST IOWA * UNTIL 500 PM CDT * AT 405 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A DEVELOPING TORNADO 13 MILES NORTHWEST OF WAUKON...OR ABOUT 9 MILES NORTHEAST OF DECORAH...MOVING EAST AT 20 MPH. * THE DEVELOPING TORNADO IS EXPECTED TO BE... NEAR WAUKON AT 430 PM CDT NEAR LANSING AT 455 PM CDT TAKE COVER IN A BASEMENT OR IN AN INTERIOR ROOM ON THE LOWEST FLOOR NELSON LAT...LON 4350 9179 4311 9179 4308 9117 4350 9123
The office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 2, 3:18 PM CDT | Severe Thunderstorm Warning | ARX | Howard, Mitchell | 57 min |
| Jul 2, 3:51 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw | 54 min |
| Jul 2, 4:11 PM CDT | Severe Thunderstorm Warning | ARX | Floyd | 64 min |
| Jul 2, 4:45 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw | 60 min |
| Jul 2, 5:00 PM CDT | Flash Flood Warning | ARX | Chickasaw | 3 hr |
| Jul 2, 5:08 PM CDT | Flash Flood Warning | ARX | Allamakee | 3 hr |
| Jul 2, 5:20 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee | 55 min |
Nearby
Tornado Warnings in Iowa, 2000Every tornado warning in 2000Tornadoes in 2000
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.