Alert archive / Minnesota / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 15, NWS Twin Cities, MN

June 22, 1997McLeod County, Meeker County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 22, 1997, 4:21 PM CDT for McLeod County, Meeker County, Minnesota. It was in force for 54 min. 2 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
Jun 22, 1997, 4:21 PM CDT (21:21 UTC)
Expired
Jun 22, 1997, 5:15 PM CDT
In force
54 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

Counties McLeod County, MN, Meeker County, MN

The radar

The Minneapolis radar (KMPX), 67 km from the middle of the area, began a volume at 21:24 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

TimeReportWhereRemark
Jun 22, 4:25 PM CDTHail 0.75Cosmos, MN5000 acres with varying degrees of crop damage. Some soybean fields a total loss.
Jun 22, 4:30 PM CDTThunderstorm Wind 50Cosmos, MNTrees down. Estimated windspeed.

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, 9.4 hours before the alert went out and 64 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-pSkew-T log-p diagram, Minneapolis, MN at 12:00Z on 1997-06-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 1997-06-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 7 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
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
1642 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
7 m²/s²
0-3 km storm-relative helicity
94 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.

545 
WUUS1 KMSP 222122
SVRMSP
MNC085-093-222220-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
421 PM CDT SUN JUN 22 1997

* SEVERE THUNDERSTORM WARNING FOR
  NORTHERN MCLEOD COUNTY - CENTRAL MINNESOTA
  MEEKER COUNTY - CENTRAL MINNESOTA

* UNTIL 515 PM CDT
 
* SOME LOCATIONS AFFECTED
    COSMOS   SILVER LAKE
    CEDAR MILLS
    HUTCHINSON

* AT 415 PM DOPPLER RADAR INDICATED A SEVERE STORM WITH LARGE HAIL
  NEAR LAKE LILLIAN OR 20 MILES SOUTHEAST OF WILLMAR.  THE STORM WAS
  MOVING EAST 25 MPH.

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


JPR

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 22, 4:49 PM CDTSevere Thunderstorm WarningMPXMcLeod, Meeker, Renville61 min
Jun 22, 6:41 PM CDTSevere Thunderstorm WarningMPXRedwood64 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.