Alert archive / Minnesota / Tornado Warnings in 1996

Tornado Warning 3, NWS Duluth, MN

August 6, 1996Aitkin County, Cass County, Minnesota

NWS Duluth, MN issued this tornado warning at Aug 6, 1996, 6:49 PM CDT for Aitkin County, Cass County, Minnesota. It was in force for 41 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 6, 1996, 6:49 PM CDT (23:49 UTC)
Expired
Aug 6, 1996, 7:30 PM CDT
In force
41 min
Issued by
NWS Duluth, MN
Area
Whole counties

Counties Aitkin County, MN, Cass County, MN

The radar

The Duluth radar (KDLH), 127 km from the middle of the area, began a volume at 23:53 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

International Fa, MN (KINL), launched 12:00Z, 11.8 hours before the alert went out and 204 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, International Fa, MN at 12:00Z on 1996-08-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 75 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, International Fa, MN at 12:00Z on 1996-08-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 159 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
75 J/kg
Mixed-layer CIN
-184 J/kg
Mixed-layer LCL
1105 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
159 m²/s²
0-3 km storm-relative helicity
217 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KDLH 062349
TORDLH
MNC001-021-070030-
 
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DULUTH MN
649 PM CDT TUE AUG 6 1996
 
THE NATIONAL WEATHER SERVICE IN DULUTH HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  730 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN EAST CENTRAL MINNESOTA
 
   ...NORTHWESTERN AITKIN COUNTY
 
IN NORTH CENTRAL MINNESOTA
 
   ...EASTERN CASS COUNTY
 
AT 648 PM CDT DOPPLER RADAR INDICATED A TORNADIC THUNDERSTORM LOCATED 30
MILES SOUTHWEST OF GRAND RAPIDS...NEAR OUTING. THE SEVERE THUNDERSTORM
WAS MOVING EAST-NORTHEAST AT 20 MPH.
 
THIS STORM WILL AFFECT SHOVEL LAKE BY 715 PM AND SWATARA BY 725 PM CDT.
 
PERSONS IN THESE AREAS SHOULD TAKE COVER NOW.
 
 
IN A TORNADO...THE SAFEST PLACE IS A BASEMENT.  GET UNDER A WORKBENCH
OR PIECE OF STURDY FURNITURE.  IF NO BASEMENT IS AVAILABLE...SEEK
SHELTER IN AN INTERIOR ROOM SUCH AS A CLOSET ON THE LOWEST FLOOR.
USE BLANKETS...PILLOWS... OR CUSHIONS TO COVER YOUR BODY.  AVOID
WINDOWS.
 
BOLSETH

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 5:39 PM CDTSevere Thunderstorm WarningDLHKoochiching, Saint Louis66 min
Aug 6, 6:26 PM CDTSevere Thunderstorm WarningDLHAitkin, Cass49 min

Nearby

Tornado Warnings in Minnesota, 1996Every tornado warning in 1996Tornadoes in 1996

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.