Alert archive / Minnesota / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 27, NWS Sioux Falls, SD

July 14, 1995Rock County, Minnesota

NWS Sioux Falls, SD issued this severe thunderstorm warning at Jul 14, 1995, 6:34 PM CDT for Rock County, Minnesota. It was in force for 46 min.

The area

The counties it named.

The facts

Issued
Jul 14, 1995, 6:34 PM CDT (23:34 UTC)
Expired
Jul 14, 1995, 7:20 PM CDT
In force
46 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 23:33 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 12:00Z, 11.6 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 1995-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 76 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 1995-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -61 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
76 J/kg
Mixed-layer CIN
-244 J/kg
Mixed-layer LCL
695 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
-61 m²/s²
0-3 km storm-relative helicity
-4 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 KFSD 142336 RRA
SVRFSD
MNC133-150020-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
634 PM CDT FRI JUL 14 1995

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 720 PM CDT (620 PM MDT)
FOR PEOPLE IN THE FOLLOWING COUNTY...

IN SOUTHWEST MINNESOTA

   ...ROCK COUNTY MN
 
AT 630 PM CDT...A SEVERE THUNDERSTORM WAS DETECTED BY SIOUX FALLS
DOPPLER RADAR 20 MILES EAST OF SIOUX FALLS  OR 3 MILES SOUTHEAST OF
BEAVER CREEK MOVING NORTHEAST AT 25 MPH.

THIS STORM CAN BE EXPECTED IN THE VICINITY OF...
LUVERNE                  BY 645 PM CDT
HARDWICK                 BY 710 PM CDT
KENNETH                  BY 715 PM CDT
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DO NOT USE TELEPHONES OR
ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS
PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.

RUBY

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

Local storm report, Jul 14, 4:00 PM CDT, 2 hours 34 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE HURON SD
400 PM CDT FRI JUL 14 1995

STORM DATA FOR THU JUL 13 1995

TIME            COUNTY...LOCATION          CHARACTER OF STORM...DAMAGE

1100 PM CDT      HUGHES CO...BLUNT            TREE DAMAGE...THREE INCH
                                              BRANCHES BROKEN

BETWEEN 1130 PM  HAND CO...ST. LAWRENCE       LARGE TREES UPROOTED...
AND MIDNIGHT               12 N               GARAGE BLOWN DOWN

ABOUT 10 PM CDT  JONES CO...OKATON            SMALL BRANCHES DOWN...
                                              HAIL DAMAGE TO CROPS.

SPRINGER
Local storm report, Jul 14, 4:05 PM CDT, 2 hours 29 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE HURON SD
400 PM CDT FRI JUL 14 1995

STORM DATA FOR THU JUL 13 1995

TIME            COUNTY...LOCATION          CHARACTER OF STORM...DAMAGE

1100 PM CDT      HUGHES CO...BLUNT            TREE DAMAGE...THREE INCH
                                              BRANCHES BROKEN

BETWEEN 1130 PM  HAND CO...ST. LAWRENCE       LARGE TREES UPROOTED...
AND MIDNIGHT               12 N               GARAGE BLOWN DOWN

ABOUT 10 PM CDT  JONES CO...OKATON            SMALL BRANCHES DOWN...
                                              HAIL DAMAGE TO CROPS.

SPRINGER

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 14, 5:08 PM CDTSevere Thunderstorm WarningFSDMurray47 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.