Alert archive / Minnesota / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 69, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 28, 1997, 9:17 PM CDT for Nicollet County, Minnesota. It was in force for 58 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
- Jun 28, 1997, 9:17 PM CDT (02:17 UTC)
- Expired
- Jun 28, 1997, 10:15 PM CDT
- In force
- 58 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
County Nicollet County, MN
The radar
The Minneapolis radar (KMPX), 77 km from the middle of the area, began a volume at 02:17 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, 9:30 PM CDT | Hail 1.75 | Lafayette, 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
Minneapolis, MN (KMPX), launched 00:00Z, 2.3 hours before the alert went out and 76 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
- 947 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 42 m²/s²
- 0-3 km storm-relative helicity
- 318 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.2
The text
As transmitted, in the capitals the NWS used until 2016.
889
WUUS1 KMSP 290218 RRA
SVRMSP
MNC103-290315-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
917 PM CDT SAT JUN 28 1997
* SEVERE THUNDERSTORM WARNING FOR
NICOLLET COUNTY - SOUTH CENTRAL MINNESOTA
* UNTIL 1015 PM CDT
* SOME LOCATIONS AFFECTED
ST. GEORGE
LAFAYETTE
NICOLLET
ST. PETER
* AT 915 PM CDT DOPPLER RADAR INDICATED A SEVERE STORM WITH LARGE
HAIL JUST NORTH OF ST. GEORGE OR 10 MILES NORTH OF NEW ULM.. THE
STORM WAS MOVING EAST AT 25 MPH.
THIS IS A DANGEROUS STORM...WITH LARGE HAIL. STAY INDOORS AWAY
FROM WINDOWS.
CWS/JPRThe 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, 9:39 PM CDT | Severe Thunderstorm Warning | MPX | Renville | 51 min |
| Jun 28, 10:18 PM CDT | Severe Thunderstorm Warning | MPX | Lac qui Parle, Yellow Medicine | 57 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.