Alert archive / Minnesota / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 223, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 8, 1997, 4:35 PM CDT for Martin County, Watonwan County, Minnesota. It was in force for 40 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
- Sep 8, 1997, 4:35 PM CDT (21:35 UTC)
- Expired
- Sep 8, 1997, 5:15 PM CDT
- In force
- 40 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
Counties Martin County, MN, Watonwan County, MN
The radar
The Minneapolis radar (KMPX), 140 km from the middle of the area, began a volume at 21:39 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 |
|---|---|---|---|
| Sep 8, 4:45 PM CDT | Hail 0.75 | Odin, 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 12:00Z, 9.6 hours before the alert went out and 138 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
- 300 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 514 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 38 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
331
WUUS1 KMSP 082136 RRA
SVRMSP
MNC091-165-082215-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
435 PM CDT MON SEP 8 1997
* SEVERE THUNDERSTORM WARNING FOR
NORTHERN MARTIN COUNTY - SOUTH CENTRAL MINNESOTA
SOUTHERN WATONWAN COUNTY - SOUTH CENTRAL MINNESOTA
* UNTIL 515 PM CDT
* SOME LOCATIONS AFFECTED
BUTTERFIELD
ODIN
ORNSBY
TRIMONT
* AT 435PM CDT DOPPLER RADAR INDICATED A SEVERE STORM WITH LARGE
HAIL NEAR BUTTERFIELD OR 25 MILES NORTHWEST OF FAIRMONT. THE
STORM WAS MOVING SOUTHEAST 25 MPH.
THIS IS A DANGEROUS STORM...WITH LARGE HAIL. STAY INDOORS AWAY
FROM WINDOWS.
BAPWhat forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Local storm report, Sep 8, 3:44 PM CDT, 51 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MINNESOTA
344 PM CDT MON SEP 08 1997
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0147 PM 10 N CANBY MN .75 INCH HAIL
09/08/97 LAC QUI PARLE
JPRLocal storm report, Sep 8, 3:47 PM CDT, 48 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MINNESOTA
344 PM CDT MON SEP 08 1997
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0147 PM 10 N CANBY MN .75 INCH HAIL
09/08/97 LAC QUI PARLE
JPRThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 8, 1:36 PM CDT | Severe Thunderstorm Warning | MPX | Lac qui Parle, Yellow Medicine | 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.