Alert archive / Minnesota / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 71, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 28, 1997, 10:18 PM CDT for Lac qui Parle County, Yellow Medicine County, Minnesota. It was in force for 57 min. 2 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
- Jun 28, 1997, 10:18 PM CDT (03:18 UTC)
- Expired
- Jun 28, 1997, 11:15 PM CDT
- In force
- 57 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
Counties Lac qui Parle County, MN, Yellow Medicine County, MN
The radar
The Sioux Falls radar (KFSD), 152 km from the middle of the area, began a volume at 03:21 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 28, 10:30 PM CDT | Thunderstorm Wind 50 | Canby, MN | Trees down. |
| Jun 28, 10:45 PM CDT | Hail 0.75 | Madison, 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 nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 3.3 hours before the alert went out and 188 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
- 2683 J/kg
- Mixed-layer CIN
- -66 J/kg
- Mixed-layer LCL
- 1089 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 43 m²/s²
- 0-3 km storm-relative helicity
- 82 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.3
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KMSP 290318 RRA
SVRMSP
MNC073-173-290415-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1018 PM CDT SAT JUN 28 1997
* SEVERE THUNDERSTORM WARNING FOR
SOUTHERN LAC QUI PARLE COUNTY - WEST CENTRAL MINNESOTA
YELLOW MEDICINE COUNTY - SOUTHWESTERN MINNESOTA
* UNTIL 1115 PM CDT
* SOME LOCATIONS AFFECTED
CANBY
ST LEO
PROVIDENCE
BOYD
* AT 1015 PM CDT DOPPLER RADAR INDICATEfD A SEVERE STORM ON THE
MINNESOTA/SOUTH DAKOTA BORDER OR 30 MILES WEST OF MONTEVIDEO.
THE STORM WAS MOVING EAST AT 25 MPH.
THIS IS A DANGEROUS STORM...WITH LARGE HAIL. STAY INDOORS AWAY
FROM WINDOWS.
MCBEATH PETERSThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 28, 7:13 PM CDT | Severe Thunderstorm Warning | MPX | McLeod, Renville | 47 min |
| Jun 28, 8:22 PM CDT | Severe Thunderstorm Warning | MPX | Renville, Sibley | 38 min |
| Jun 28, 9:17 PM CDT | Severe Thunderstorm Warning | MPX | Nicollet | 58 min |
| Jun 28, 9:39 PM CDT | Severe Thunderstorm Warning | MPX | Renville | 51 min |
| Jun 28, 10:23 PM CDT | Severe Thunderstorm Warning | MPX | McLeod, Sibley | 52 min |
| Jun 28, 11:54 PM CDT | Flash Flood Warning | MPX | McLeod | 3 hr |
| Jun 29, 12:16 AM CDT | Severe Thunderstorm Warning | MPX | McLeod | 44 min |
| Jun 29, 1:14 AM CDT | Severe Thunderstorm Warning | MPX | Meeker, Stearns | 61 min |
| Jun 29, 2:47 AM CDT | Flash Flood Warning | MPX | McLeod | 2 hr |
| Jun 29, 3:06 AM CDT | Severe Thunderstorm Warning | MPX | McLeod, Renville, Sibley | 54 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 1997Every severe thunderstorm warning 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.