Alert archive / Minnesota / Tornado Warnings in 1997
Tornado Warning 24, NWS La Crosse, WI
NWS La Crosse, WI issued this tornado warning at Aug 23, 1997, 7:03 PM CDT for Winona County, Minnesota. It was in force for 37 min. 3 reports 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
- Aug 23, 1997, 7:03 PM CDT (00:03 UTC)
- Expired
- Aug 23, 1997, 7:40 PM CDT
- In force
- 37 min
- Issued by
- NWS La Crosse, WI
- Area
- Whole counties
County Winona County, MN
The radar
The La Crosse radar (KARX), 51 km from the middle of the area, began a volume at 00:02 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 |
|---|---|---|---|
| Aug 23, 7:30 PM CDT | Thunderstorm Wind 55 | Goodview, MN | |
| Aug 23, 7:35 PM CDT | Hail 0.75 | Winona, MN | |
| Aug 23, 7:36 PM CDT | Hail 1 | Winona, MN |
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 |
|---|---|---|---|
| Aug 23, 5:30 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 0.1 hours before the alert went out and 174 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
- 3368 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 1119 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 122 m²/s²
- 0-3 km storm-relative helicity
- 207 m²/s²
- Significant tornado parameter
- 2.0
- Supercell composite
- 12.4
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KLSE 240004 RRA
TORLSE
MNC169-240040-
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
703 PM CDT SAT AUG 23 1997
* TORNADO WARNING FOR
EASTERN WINONA COUNTY - SOUTHEASTERN MINNESOTA
* UNTIL 740 PM CDT
* SOME LOCATIONS AFFECTED
NODINE
RIDGEWAY
* AT 700 PM NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
DEVELOPING TORNADO 10 MILES EAST OF WINONA...25 MILES NORTHWEST
OF LA CROSSE. THE STORM WAS MOVING SOUTH SOUTHEAST AT 20 MPH.
* THE STORM WILL BE NEAR NODINE AT 715 PM.
IF YOU ARE NEAR THIS DANGEROUS STORM...TAKE COVER IMMEDIATELY IN
THE LOWEST FLOOR AND INNER MOST ROOM OF A BUILDING.
RIECK/SWERMANThe office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 23, 7:34 PM CDT | Tornado Warning | ARX | Winona | 46 min |
| Aug 23, 8:06 PM CDT | Flash Flood Warning | ARX | Winona | 3 hr |
| Aug 23, 8:18 PM CDT | Severe Thunderstorm Warning | ARX | Houston | 62 min |
| Aug 23, 8:20 PM CDT | Tornado Warning | ARX | Winona | 60 min |
| Aug 23, 8:58 PM CDT | Severe Thunderstorm Warning | ARX | Fillmore | 47 min |
| Aug 23, 9:06 PM CDT | Tornado Warning | ARX | Houston | 34 min |
| Aug 23, 9:59 PM CDT | Severe Thunderstorm Warning | ARX | Fillmore | 46 min |
Nearby
Tornado Warnings in Minnesota, 1997Every tornado warning in 1997Tornadoes in 1997
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.