Alert archive / Minnesota / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 121, NWS Twin Cities, MN

August 11, 1995Lac qui Parle County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 11, 1995, 4:40 AM CDT for Lac qui Parle County, Minnesota. It was in force for 33 min.

The area

The counties it named.

The facts

Issued
Aug 11, 1995, 4:40 AM CDT (09:40 UTC)
Expired
Aug 11, 1995, 5:13 AM CDT
In force
33 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

County Lac qui Parle County, MN

The radar

The Sioux Falls radar (KFSD), 163 km from the middle of the area, began a volume at 09:41 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.

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 9.7 hours before the alert went out and 176 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 00:00Z on 1995-08-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 131 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, Aberdeen, SD at 00:00Z on 1995-08-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 square meters per square second.1939587897Sfc1 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
131 J/kg
Mixed-layer CIN
-342 J/kg
Mixed-layer LCL
1884 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
240 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 KMSP 110941 RRA
SVRMSP
MNC073-111045-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
440 AM CDT FRI AUG 11 1995
 
THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  545 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN WEST CENTRAL MINNESOTA
 
   ...LAC QUI PARLE COUNTY
 
AT 440 AM CDT...DOPPLER RADAR INDICATED A LINE OF SEVERE TUNDERSTORMS
LOCATED FROM ORTONVILLE TO 15 MILES SOUTH OF ORTONVILLE. THESE STORMS
ARE MOVING EAST AT 45 MPH...AND WILL MOVE THROUGH THE COMMUNITIES OF
ROSER...MARIETTA...BELLINGHAM AND MADISON. THIS LINE OF STORMS HAS
PRODUCED DAMAGING WINDS AS IT MOVED THROUGH EASTERN SOUTH DAKOTA.
 
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.
 
MARGRAF!

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 11, 4:49 AM CDTSevere Thunderstorm WarningMPXStevens, Swift41 min
Aug 11, 5:18 AM CDTSevere Thunderstorm WarningMPXPope42 min
Aug 11, 5:29 AM CDTSevere Thunderstorm WarningMPXSwift31 min
Aug 11, 5:45 AM CDTSevere Thunderstorm WarningMPXKandiyohi, Stearns45 min
Aug 11, 6:01 AM CDTSevere Thunderstorm WarningMPXMeeker, Stearns44 min
Aug 11, 6:33 AM CDTSevere Thunderstorm WarningMPXMeeker, Wright57 min
Aug 11, 6:33 AM CDTSevere Thunderstorm WarningMPXBenton, Sherburne35 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 1995Every severe thunderstorm warning in 1995

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; radar from the NEXRAD Level II archive.