Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 135, NWS Twin Cities, MN

August 12, 1995Dunn County, Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 12, 1995, 9:17 PM CDT for Dunn County, Wisconsin. It was in force for 43 min.

The area

The counties it named.

The facts

Issued
Aug 12, 1995, 9:17 PM CDT (02:17 UTC)
Expired
Aug 12, 1995, 10:00 PM CDT
In force
43 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

County Dunn County, WI

The radar

The Minneapolis radar (KMPX), 132 km from the middle of the area, began a volume at 02:17 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

Minneapolis, MN (KMPX), launched 00:00Z, 2.3 hours before the alert went out and 135 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 00:00Z on 1995-08-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3775 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, Minneapolis, MN at 00:00Z on 1995-08-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 48 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
3775 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
779 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
48 m²/s²
0-3 km storm-relative helicity
70 m²/s²
Significant tornado parameter
0.9
Supercell composite
5.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMSP 130218 RRA
SVRMSP
WIC033-130300-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
917 PM CDT SAT AUG 12 1995
 
THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1000 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN WEST CENTRAL WISCONSIN
 
   ...DUNN COUNTY
 
AT 915 PM... DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM IN EASTERN
ST. CROIX COUNTY ABOUT 15 MILES WEST OF MENOMONIE. THIS STORM WAS MOVING
TOWARD MENOMONIE AND WHEELER AND IS CAPABLE OF PRODUCING DAMAGING WINDS
AND LARGE HAIL. TREES HAVE BEEN REPORTED DOWN WITH THIS STORM IN ST.
CROIX COUNTY.
 
 
SEVERE THUNtDERSTORMS 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.
 
FRANZEN

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 12, 8:44 PM CDTTornado WarningMPXSaint Croix46 min
Aug 12, 9:28 PM CDTSevere Thunderstorm WarningMPXPierce47 min
Aug 13, 12:16 AM CDTFlash Flood WarningMPXDunn, Pepin, Pierce3 hr
Aug 13, 5:59 PM CDTSevere Thunderstorm WarningMPXPolk, Saint Croix46 min
Aug 13, 6:45 PM CDTSevere Thunderstorm WarningMPXBarron, Dunn45 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 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.