Alert archive / Minnesota / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 7, NWS Twin Cities, MN

May 27, 1993Winona County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 27, 1993, 5:48 PM CDT for Winona County, Minnesota. It was in force for 42 min.

The area

The counties it named.

The facts

Issued
May 27, 1993, 5:48 PM CDT (22:48 UTC)
Expired
May 27, 1993, 6:30 PM CDT
In force
42 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

County Winona County, MN

The nearest sounding before it

Minneapolis, MN (KSTC), launched 12:00Z, 10.8 hours before the alert went out and 174 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 1993-05-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 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 1993-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 344 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
559 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
344 m²/s²
0-3 km storm-relative helicity
488 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 KRST 272248 RRA
SVRRST
MNC169-272330-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ROCHESTER MN
548 PM CDT THU MAY 27 1993
 
THE NATIONAL WEATHER SERVICE IN ROCHESTER MN HAS ISSUED A
SEVERE THUNDERSTORM WARNING     EFFECTIVE UNTIL  630 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHEAST MINNESOTA
 
   ...NORTHERN WINONA COUNTY
 
THIS WARNING INCLUDES THE TOWNS OF ALTURA...MINNESOTA CITY...
ELBA...ROLLINGSTONE...AND WINONA.
 
AT 540PM CDT RADAR INDICATED A SEVERE THUNDERSTORM 17 MILES
SOUTHWEST OF WABASHA NEAR THE TOWN OF PLAINVIEW.  THIS STORM
WAS MOVING EAST AT 40 MPH TOWARD THE TOWNS OF ALTURA...
MINNESOTA CITY...ELBA...ROLLINGSTONE...AND WINONA.
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND...LARGE HAIL...
DEADLY LIGHTNING...AND VERY HEAVY RAIN.  FOR YOUR PROTECTION
MOVE TO AN INTERIOR ROOM.  PEOPLE IN MOBILE HOMES SHOULD GO
TO A STORM SHELTER.

The office that day

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

IssuedProductOfficeCountiesLasted
May 27, 5:36 PM CDTSevere Thunderstorm WarningMPXWabasha39 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 1993Every severe thunderstorm warning 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.