Alert archive / Minnesota / Tornado Warnings in 1993

Tornado Warning 3, NWS Twin Cities, MN

May 7, 1993Renville County, Minnesota

NWS Twin Cities, MN issued this tornado warning at May 7, 1993, 8:07 PM CDT for Renville County, Minnesota. It was in force for 38 min.

The area

The counties it named.

The facts

Issued
May 7, 1993, 8:07 PM CDT (01:07 UTC)
Expired
May 7, 1993, 8:45 PM CDT
In force
38 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

County Renville County, MN

The nearest sounding before it

Minneapolis, MN (KSTC), launched 00:00Z, 1.1 hours before the alert went out and 107 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 00:00Z on 1993-05-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 449 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 1993-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 144 square meters per square second.19395878Sfc1 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
449 J/kg
Mixed-layer CIN
-114 J/kg
Mixed-layer LCL
975 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
144 m²/s²
0-3 km storm-relative helicity
266 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMSP 080107
TORMSP
MNC129-080145-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING 
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
807 PM CDT FRI MAY 7 1993

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 845 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY

   IN THE CENTRAL PART OF MINNESOTA
      WESTERN RENVILLE

AT 802 PM CDT...WEATHER RADAR WAS INDICATING A POSSIBLE TORNADO
NEAR MINNESOTA FALLS IN THE EXTREME WESTERN PART OF RENVILLE
COUNTY. THIS AREA IS ABOUT 20 MILES WEST OF OLIVIA.

SOME TOWNS THAT ARE IN THE PATH OF THIS STORM ARE MINNESOTA
FALLS...SACRED HEART AND RENVILLE.

MOVEMENT WAS EAST NORTHEAST AT 30 MILES AN HOUR.

THIS IS A DANGEROUS STORM SITUATION.  ACT QUICKLY.  IF YOU ARE IN
THE PATH OF A TORNADO MOVE TO A SHELTER BELOW GROUND IF AVAILABLE.
OTHERWISE..GO TO A SMALL INTERIOR ROOM ON THE LOWEST FLOOR
POSSIBLE.  AVOID WINDOWS.  ABANDON CARS AND MOBILE HOMES FOR A
REINFORCED vBUILDING OR GET INTO A DITCH OR CULVERT.

SWANBERG

The office that day

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

IssuedProductOfficeCountiesLasted
May 7, 7:41 PM CDTSevere Thunderstorm WarningMPXYellow Medicine49 min
May 7, 7:55 PM CDTTornado WarningMPXRedwood35 min
May 7, 8:03 PM CDTSevere Thunderstorm WarningMPXRedwood42 min
May 7, 8:05 PM CDTTornado WarningMPXChippewa40 min
May 7, 8:31 PM CDTTornado WarningMPXYellow Medicine59 min
May 7, 8:58 PM CDTSevere Thunderstorm WarningMPXRedwood, Renville32 min
May 7, 9:25 PM CDTSevere Thunderstorm WarningMPXKandiyohi35 min
May 8, 2:58 AM CDTFlash Flood WarningMPXCarver, Sibley2 hr

Nearby

Tornado Warnings in Minnesota, 1993Every tornado warning in 1993Tornadoes in 1993

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.