Alert archive / Minnesota / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 53, NWS Sioux Falls, SD

June 19, 1996Rock County, Minnesota

NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 19, 1996, 6:00 PM CDT for Rock County, Minnesota. It was in force for 35 min. 1 report 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
Jun 19, 1996, 6:00 PM CDT (23:00 UTC)
Expired
Jun 19, 1996, 6:35 PM CDT
In force
35 min
Issued by
NWS Sioux Falls, SD
Area
Whole counties

County Rock County, MN

The radar

The Sioux Falls radar (KFSD), 40 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
Jun 19, 6:10 PM CDTHail 0.75Magnolia, MN

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 nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 11.0 hours before the alert went out and 219 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 1996-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 32 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 12:00Z on 1996-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -1 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
32 J/kg
Mixed-layer CIN
-542 J/kg
Mixed-layer LCL
710 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
-1 m²/s²
0-3 km storm-relative helicity
5 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 KFSD 192301
SVRFSD
MNC133-192335-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
600 PM CDT WED JUN 19 1996

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS SD HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 635 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN SOUTHWEST MINNESOTA

   ...SOUTHERN ROCK COUNTY
 
AT 558 PM CDT...A SEVERE THUNDERSTORM WAS INDICATED BY SIOUX FALLS
DOPPLER RADAR 10 MILES EAST OF SIOUX FALLS  OR 8 MILES WEST OF
BEAVER CREEK MOVING EAST AT 30 MPH.

THIS STORM CAN BE EXPECTED IN THE VICINITY OF...
BRUCE                    AROUND 610 PM CDT
HILLS                    AROUND 615 PM CDT
BEAVER CREEK             AROUND 615 PM CDT
STEEN                    AROUND 625 PM CDT
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...
DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.  FOR YOUR
PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS.

REMEMBER...SEVERE THUNDERSTORM CAN AND OFTEN PRODUCE TORNADOES WITH
LITTLE OR NO ADVANCE WARNING. A TORNADO WATCH IS IN EFFECT UNTIL
10PM CDT.

CHAPMAN

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jun 19, 5:57 PM CDT, 3 minutes before
SDZ039-040-053>056-059>062-063>071-192350-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
600 PM CDT WED JUN 19 1996

...SEVERE THUNDERSTORM WATCH 640 CANCELED...

THE SEVERE THUNDERSTORM WATCH FOR A LARGE PART OF EAST CENTRAL AND
SOUTHEAST SOUTH DAKOTA HAS BEEN CANCELED AT 6 PM CDT. ALL SEVERE
WEATHER HAS MOVED TO THE EAST OF SOUTH DAKOTA BUT A FEW THUNDERSTORMS
MAY STILL LINGER UNTIL ABOUT 7 PM.

KOSCIELSKI

The office that day

Everything else NWS Sioux Falls, SD issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 19, 3:49 PM CDTTornado WarningFSDPipestone46 min
Jun 19, 4:30 PM CDTTornado WarningFSDNobles, Rock30 min
Jun 19, 5:05 PM CDTSevere Thunderstorm WarningFSDNobles, Rock30 min
Jun 19, 5:36 PM CDTSevere Thunderstorm WarningFSDNobles34 min
Jun 19, 6:37 PM CDTSevere Thunderstorm WarningFSDRock33 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 1996Every severe thunderstorm warning 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.