Alert archive / Minnesota / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 73, NWS Twin Cities, MN

June 29, 1997McLeod County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 29, 1997, 12:16 AM CDT for McLeod County, Minnesota. It was in force for 44 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 29, 1997, 12:16 AM CDT (05:16 UTC)
Expired: Jun 29, 1997, 1:00 AM CDT
In force: 44 min
Issued by: NWS Twin Cities, MN
Area: Whole counties

County McLeod County, MN

The radar

The Minneapolis radar (KMPX), 56 km from the middle of the area, began a volume at 05:18 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 29, 12:30 AM CDT	Hail 1	Glencoe, MN	Hail damaged paint and shutters.

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, 5.3 hours before the alert went out and 53 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: 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

Open this sounding in Storm Lab

The text

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

699 
WUUS1 KMSP 290515 RRA
SVRMSP
MNC085-290600-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1216 AM CDT SUN JUN 29 1997

* SEVERE THUNDERSTORM WARNING FOR
  MCLEOD COUNTY - CENTRAL MINNESOTA

* UNTIL 100 AM CDT
 
* SOME LOCATIONS AFFECTED
    STEWART
    HUTCHINSON
    BROWNTON
    GLENCOE

* AT 1210 AM CDT DOPPLER RADAR INDICATED A SEVERE STORM JUST
  NORTHWEST OF HUTCHINSON.  THE STORM WAS MOVING EAST-SOUTHEAST AT
  20 MPH.

THIS IS A DANGEROUS STORM WITH LARGE HAIL LIKELY.  STAY INDOORS AWAY
FROM WINDOWS.

REMEMBER...SEVERE THUNDERSTORMS CAN AND OCCASSIONALY DO PRODUCE
TORNADOES WITH LITTLE OR NO WARNING.

MCBEATH PETERS

The 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, 10:18 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, 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, 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.