Alert archive / Minnesota / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 198, NWS Twin Cities, MN

August 25, 1996Le Sueur County, Rice County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 25, 1996, 11:06 PM CDT for Le Sueur County, Rice County, Minnesota. It was in force for 34 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 25, 1996, 11:06 PM CDT (04:06 UTC)
Expired
Aug 25, 1996, 11:40 PM CDT
In force
34 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

Counties Le Sueur County, MN, Rice County, MN

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 4.1 hours before the alert went out and 55 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 1996-08-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3008 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 1996-08-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 53 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
3008 J/kg
Mixed-layer CIN
-54 J/kg
Mixed-layer LCL
1140 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
53 m²/s²
0-3 km storm-relative helicity
95 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMSP 260407
SVRMSP
MNC079-131-260440-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1106 PM CDT SUN AUG 25 1996

* SEVERE THUNDERSTORM WARNING FOR
  SOUTHEASTERN LE SUEUR COUNTY - SOUTH CENTRAL MINNESOTA
  SOUTHWESTERN RICE COUNTY - SOUTHEAST MINNESOTA

* UNTIL 1140 PM CDT
 
* SOME LOCATIONS AFFECTED
    MORRISTOWN
    WARSAW
    WATERVILLE

* AT 1105 PM CDT DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM 20
  MILES EAST OF MANKATO NEAR MORRISTOWN MOVING SOUTH AT 15 MPH.

THIS IS A DANGEROUS STORM...WITH LARGE HAIL. STAY INDOORS AWAY FROM
WINDOWS.

HOWIESON

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, Aug 25, 9:24 PM CDT, 1 hour 42 minutes before
MNZ059>063-066>070-075>079-083>088-092>096-260500-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
915 PM CDT SUN AUG 25 1996

THE FOLLOWING MINNESOTA COUNTIES ARE REMOVED FROM SEVERE
THUNDERSTORM WATCH 983...

ANOKA...RAMSEY...CARVER...SCOTT...DAKOTA...WASHINGTON...HENNEPIN...
WRIGHT...MCLEOD AND SIBLEY.  THEREFORE...THE TWIN CITIES AND
SURROUNDING SUBURBS ARE NO LONGER INCLUDED IN THE SEVERE
THUNDERSTORM WATCH.

THE SEVERE THUNDERSTORM WATCH REMAINS VALID UNTIL 11 PM TO THE SOUTH
OF A LINE FROM REDWING TO ST. PETER TO NEW ULM.  THE COMMUNITIES OF
ROCHESTER...OWATONNA...AUSTIN AND ALBERT LEA ARE STILL INCLUDED IN
THIS SEVERE THUNDERSTORM WATCH.
 WET

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 25, 7:39 PM CDTSevere Thunderstorm WarningMPXDakota61 min
Aug 25, 7:55 PM CDTSevere Thunderstorm WarningMPXGoodhue60 min
Aug 25, 8:00 PM CDTSevere Thunderstorm WarningMPXScott45 min
Aug 25, 8:31 PM CDTSevere Thunderstorm WarningMPXLe Sueur, Rice44 min
Aug 25, 8:51 PM CDTSevere Thunderstorm WarningMPXGoodhue69 min
Aug 25, 9:10 PM CDTSevere Thunderstorm WarningMPXRice50 min
Aug 25, 10:03 PM CDTSevere Thunderstorm WarningMPXRice57 min
Aug 26, 12:09 AM CDTSevere Thunderstorm WarningMPXDakota31 min
Aug 26, 12:48 AM CDTFlash Flood WarningMPXLe Sueur, Rice, Steele, Waseca3 hr
Aug 26, 12:48 AM CDTFlash Flood WarningMPXBlue Earth, Nicollet3 hr

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; the sounding from the Mesonet's radiosonde archive.