Alert archive / Minnesota / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 202, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 15, 1997, 6:04 PM CDT for Scott County, Minnesota. It was in force for 66 min. 6 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 15, 1997, 6:04 PM CDT (23:04 UTC)
- Expired
- Aug 15, 1997, 7:10 PM CDT
- In force
- 66 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
County Scott County, MN
The radar
The Minneapolis radar (KMPX), 22 km from the middle of the area, began a volume at 23:05 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 15, 6:10 PM CDT | Hail 1.75 | Lydia, MN | |
| Aug 15, 6:12 PM CDT | Hail 1.75 | Jordan, MN | |
| Aug 15, 6:15 PM CDT | Thunderstorm Wind 55 | Jordan, MN | Mobile home damaged. |
| Aug 15, 6:30 PM CDT | Thunderstorm Wind 55 | Prior Lake, MN | Trees blown down. Estimated windspeed. |
| Aug 15, 6:35 PM CDT | Hail 1.75 | Spring Lake, MN | |
| Aug 15, 6:35 PM CDT | Thunderstorm Wind 52 | Spring Lake, 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 15, 4:15 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 11.1 hours before the alert went out and 23 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
- 738 J/kg
- Mixed-layer CIN
- -34 J/kg
- Mixed-layer LCL
- 698 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 58 m²/s²
- 0-3 km storm-relative helicity
- 66 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.0
The text
As transmitted, in the capitals the NWS used until 2016.
281
WUUS1 KMSP 152306 RRA
SVRMSP
MNC139-160005-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
604 PM CDT FRI AUG 15 1997
* SEVERE THUNDERSTORM WARNING FOR
SCOTT COUNTY - EAST CENTRAL MINNESOTA
* UNTIL 710 PM CDT
* SOME LOCATIONS AFFECTED
BELLE PLAINE
JORDON
LYDIA
NEW MARKET
* AT 601 PM SEVERE WEATHER SPOTTERS REPORTED A SEVERE STORM WITH
LARGE HAIL NEAR BELLE PLAINE OR 40 MILES SOUTHWEST OF
MINNEAPOLIS. THE STORMS WERE MOVING EAST AT 35 MPH.
THIS IS A DANGEROUS STORM...WITH LARGE HAIL. STAY INDOORS AWAY
FROM WINDOWS.
A TORNADO WATCH IS IN EFFECT. SEVERE THUNDERSTORMS CAN PRODUCE
TORNADOES.
SCOTT
&The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 7:14 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Rice | 46 min |
| Aug 14, 7:50 PM CDT | Tornado Warning | MPX | Le Sueur, Rice | 100 min |
| Aug 14, 7:50 PM CDT | Tornado Warning | MPX | Le Sueur, Rice | 40 min |
| Aug 15, 4:33 PM CDT | Severe Thunderstorm Warning | MPX | McLeod, Meeker, Renville | 42 min |
| Aug 15, 4:58 PM CDT | Severe Thunderstorm Warning | MPX | Wright | 32 min |
| Aug 15, 5:02 PM CDT | Severe Thunderstorm Warning | MPX | McLeod | 58 min |
| Aug 15, 5:26 PM CDT | Severe Thunderstorm Warning | MPX | Carver | 64 min |
| Aug 15, 5:41 PM CDT | Severe Thunderstorm Warning | MPX | Mille Lacs, Sherburne | 34 min |
| Aug 15, 5:44 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Isanti | 61 min |
| Aug 15, 6:10 PM CDT | Severe Thunderstorm Warning | MPX | Chisago | 30 min |
| Aug 15, 6:27 PM CDT | Severe Thunderstorm Warning | MPX | Dakota | 63 min |
| Aug 15, 6:40 PM CDT | Severe Thunderstorm Warning | MPX | Le Sueur | 50 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.