Alert archive / Minnesota / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 235, NWS Twin Cities, MN

October 8, 1997Lac qui Parle County, Yellow Medicine County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Oct 8, 1997, 7:56 PM CDT for Lac qui Parle County, Yellow Medicine County, Minnesota. It was in force for 34 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: Oct 8, 1997, 7:56 PM CDT (00:56 UTC)
Expired: Oct 8, 1997, 8:30 PM CDT
In force: 34 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 00:58 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
Oct 8, 8:00 PM CDT	Thunderstorm Wind 55	Haydenville, MN	Hog barn collapse resulted in one injury. Damage estimate for entire county.
Oct 8, 8:03 PM CDT	Thunderstorm Wind 55	Bellingham, MN	Sheds and bins destroyed. 30 trees blown over. Estimated windspeed.
Oct 8, 8:10 PM CDT	Thunderstorm Wind 55	Bellingham, MN	Hog feeding building destroyed.

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
Oct 8, 7:30 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 0.9 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 536 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: -33 m²/s²
0-3 km storm-relative helicity: 9 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KMSP 090057 RRA
SVRMSP
MNC073-173-090130-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
756 PM CDT WED OCT 8 1997


* SEVERE THUNDERSTORM WARNING FOR
  LAC QUI PARLE COUNTY - WEST CENTRAL MINNESOTA
  YELLOW MEDICINE COUNTY - SOUTHWESTERN MINNESOTA

* UNTIL 830 PM CDT

* SOME LOCATIONS AFFECTED
    CANBY
    MADISON
    GRANITE FALLS
    BELLINGHAM

* AT 755 PM CDT DOPPLER RADAR INDICATED A LINE OF SEVERE STORMS WITH
  LARGE HAIL AND DAMAGING WINDS 45 MILES SOUTHWEST OF MONTEVIDEO.
  THE STORMS WERE MOVING NORTHEAST AT 50 MPH.

DAMAGING WINDS AND LARGE HAIL ARE LIKELY.  GO INSIDE A STURDY
BUILDING AND STAY AWAY FROM WINDOWS.


MCBEATH PETERS

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 8, 8:25 PM CDT	Severe Thunderstorm Warning	MPX	Stevens, Swift	50 min
Oct 8, 8:25 PM CDT	Severe Thunderstorm Warning	MPX	Redwood, Renville	50 min
Oct 8, 8:25 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa	50 min
Oct 8, 9:07 PM CDT	Severe Thunderstorm Warning	MPX	Redwood, Renville	53 min
Oct 8, 9:07 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi	53 min
Oct 8, 11:15 PM CDT	Severe Thunderstorm Warning	MPX	Kanabec, Mille Lacs	60 min
Oct 8, 11:43 PM CDT	Severe Thunderstorm Warning	MPX	Nicollet, Sibley	47 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 1997 Every 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.