Alert archive / Minnesota / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 117, NWS Twin Cities, MN

July 1, 1996Morrison County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 1, 1996, 7:43 PM CDT for Morrison County, Minnesota. It was in force for 62 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
Jul 1, 1996, 7:43 PM CDT (00:43 UTC)
Expired
Jul 1, 1996, 8:45 PM CDT
In force
62 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

County Morrison County, MN

What was reported inside it

TimeReportWhereRemark
Jul 1, 8:05 PM CDTHail 1.5Swanville, 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

Minneapolis, MN (KMPX), launched 00:00Z, 0.7 hours before the alert went out and 139 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 1996-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1996-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 23 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1619 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
23 m²/s²
0-3 km storm-relative helicity
105 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 KMSP 020045
SVRMSP
MNC097-020145-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
743 PM CDT MON JUL 1 1996

* SEVERE THUNDERSTORM WARNING FOR
  SOUTHWESTERN MORRISON COUNTY - CENTRAL MINNESOTA

* UNTIL 845 PM CDT
 
* SOME LOCATIONS AFFECTED
    SWANVILLE
    FLENSBURG
    SOBLESKI
    ELMDALE

* AT 740 PM CDT DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM JUST
  EAST OF LONG PRAIRIE...35 MILES NORTHWEST OF ST CLOUD MOVING
  SOUTHEAST AT 15 MPH.  FUNNEL CLOUDS HAVE BEEN REPORTED WITH THIS
  STORM AND REMAIN A POSSIBILITY.

DAMAGING WINDS AND LARGE HAIL ARE LIKELY.  GO INSIDE A STURDY
BUILDING AND STAY AWAY FROM WINDOWS!

MCBEATH PETERS

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, Jul 1, 7:25 PM CDT, 18 minutes before
MNZ074-080>082-089-090-020045-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
722 PM CDT MON JUL 1 1996

...TORNADO WATCH CANCELLED FOR PORTIONS OF SOUTHWEST MINNESOTA...

THE TORNADO WATCH ISSUED LATE THIS AFTERNOON HAS BEEN CANCELLED
ACROSS PORTIONS OF SOUTHWEST MINNESOTA.  THE COUNTIES NO LONGER IN
THE WATCH INCLUDE... BROWN...COTTONWOOD...JACKSON...MURRAY...
NOBLES...AND WANTONWAN.

THE SEVERE WEATHER THREAT HAS MOVED TO THE EAST AND SOUTH OF THIS
AREA.

MARGRAF!

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 1, 7:18 PM CDTSevere Thunderstorm WarningMPXTodd57 min
Jul 1, 10:54 PM CDTSevere Thunderstorm WarningMPXMower36 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.