Alert archive / Minnesota / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 119, NWS Twin Cities, MN

July 13, 1997Redwood County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 13, 1997, 6:01 PM CDT for Redwood County, Minnesota. It was in force for 44 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
Jul 13, 1997, 6:01 PM CDT (23:01 UTC)
Expired
Jul 13, 1997, 6:45 PM CDT
In force
44 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

County Redwood County, MN

The radar

The Minneapolis radar (KMPX), 142 km from the middle of the area, began a volume at 23:04 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
Jul 13, 6:02 PM CDTHail 3Morgan, MNExtensive crop damage. Shattered windows in barn.
Jul 13, 6:03 PM CDTThunderstorm Wind 50Lamberton, MNSeveral trees blown 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 13, 4:00 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 11.0 hours before the alert went out and 255 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, Aberdeen, SD at 12:00Z on 1997-07-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 825 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Aberdeen, SD at 12:00Z on 1997-07-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 68 square meters per square second.193958Sfc1 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
825 J/kg
Mixed-layer CIN
-98 J/kg
Mixed-layer LCL
1060 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
68 m²/s²
0-3 km storm-relative helicity
87 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMSP 132303 RRA
SVRMSP
MNC127-132345-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
601 PM CDT SUN JUL 13 1997

* SEVERE THUNDERSTORM WARNING FOR
  REDWOOD COUNTY - SOUTHWESTERN MINNESOTA

* UNTIL 645 PM CDT
 
* SOME LOCATIONS AFFECTED
    WALNUT GROVE
    LUCAN
    LAMBERTON
    WABASSO

* AT 6 PM CDT DOPPLER RADAR INDICATED A SEVERE STORM WITH LARGE
  HAIL AND DAMAGING WINDS JUST WEST OFB LAMBERTON..OR ABOUT 30 MILES
  SOUTHWEST OF REDWOOD FALLS.  THE STORM WAS MOVING NORTHEAST AT 30
  MPH.

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


MILLER

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 13, 12:36 AM CDTSevere Thunderstorm WarningMPXChisago39 min
Jul 13, 4:27 PM CDTSevere Thunderstorm WarningMPXChippewa, Yellow Medicine33 min
Jul 13, 5:00 PM CDTSevere Thunderstorm WarningMPXChippewa, Yellow Medicine45 min
Jul 13, 5:35 PM CDTSevere Thunderstorm WarningMPXWatonwan40 min
Jul 13, 6:15 PM CDTSevere Thunderstorm WarningMPXBrown45 min
Jul 13, 6:19 PM CDTSevere Thunderstorm WarningMPXKandiyohi56 min
Jul 13, 6:43 PM CDTTornado WarningMPXNicollet47 min
Jul 13, 6:47 PM CDTSevere Thunderstorm WarningMPXMeeker58 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.