Alert archive / Iowa / Tornado Warnings in 2001
Tornado Warning 8, NWS La Crosse, WI
NWS La Crosse, WI issued this tornado warning at May 10, 2001, 6:00 PM CDT for Clayton County, Iowa. It was in force for 45 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- May 10, 2001, 6:00 PM CDT (23:00 UTC)
- Expired
- May 10, 2001, 6:45 PM CDT
- In force
- 45 min
- Issued by
- NWS La Crosse, WI
- Area
- Whole counties
County Clayton County, IA
The radar
The La Crosse radar (KARX), 109 km from the middle of the area, began a volume at 23:03 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 |
|---|---|---|---|
| May 10, 6:00 PM CDT | Tornado F0 | Edgewood, 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 nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 11.0 hours before the alert went out and 153 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2104 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 15 m²/s²
- 0-3 km storm-relative helicity
- 102 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 102300 TORLSE IAC043-102345- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE LA CROSSE WI 600 PM CDT THU MAY 10 2001 THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A * TORNADO WARNING FOR... CLAYTON COUNTY IN NORTHEAST IOWA * UNTIL 645 PM CDT * AT 557 PM CDT...EMERGENCY MANAGEMENT OFFICIALS REPORTED A TORNADO 6 MILES SOUTHEAST OF STRAWBERRY POINT...OR ABOUT 13 MILES SOUTH OF ELKADER...MOVING EAST AT 25 MPH. * THE TORNADO IS EXPECTED TO BE... NEAR WOOD AT 605 PM... NEAR OSTERDOCK AROUND 615 PM... NEAR GUTTENBERG AT 620 PM CDT... TAKE COVER IN A BASEMENT OR IN AN INTERIOR ROOM ON THE LOWEST FLOOR $$ BAUMGARDT LAT...LON 4275 9159 4264 9160 4266 9093 4279 9109 &
The office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 10:04 PM CDT | Severe Thunderstorm Warning | ARX | Winneshiek | 56 min |
| May 9, 10:44 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee | 46 min |
| May 10, 4:44 PM CDT | Severe Thunderstorm Warning | ARX | Fayette | 46 min |
| May 10, 5:33 PM CDT | Severe Thunderstorm Warning | ARX | Clayton | 57 min |
Nearby
Tornado Warnings in Iowa, 2001Every tornado warning in 2001Tornadoes in 2001
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; radar from the NEXRAD Level II archive.