Alert archive / Minnesota / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 146, NWS Twin Cities, MN

July 27, 1996Martin County, Watonwan County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 27, 1996, 6:50 PM CDT for Martin County, Watonwan County, Minnesota. It was in force for 70 min. 3 reports 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 27, 1996, 6:50 PM CDT (23:50 UTC)
Expired
Jul 27, 1996, 8:00 PM CDT
In force
70 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

Counties Martin County, MN, Watonwan County, MN

The radar

The Minneapolis radar (KMPX), 140 km from the middle of the area, began a volume at 23:52 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
Jul 27, 6:55 PM CDTHail 1Ormsby, MN
Jul 27, 7:12 PM CDTHail 1.75Truman, MN
Jul 27, 7:54 PM CDTTornado F0Fairmont, 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 12:00Z, 11.8 hours before the alert went out and 138 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 12:00Z on 1996-07-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 18 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 12:00Z on 1996-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 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
18 J/kg
Mixed-layer CIN
-79 J/kg
Mixed-layer LCL
1417 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
57 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 272352
SVRMSP
MNC091-165-280100-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
650 PM CDT SAT JUL 27 1996

* SEVERE THUNDERSTORM WARNING FOR
  MARTIN COUNTY - SOUTH CENTRAL MINNESOTA
  WATONWAN COUNTY - SOUTH CENTRAL MINNESOTA

* UNTIL 8 PM CDT
 
* SOME LOCATIONS AFFECTED
    LEWISVILLE
    FAIRMONT
    TRUMAN

* AT 650 PM CDT DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM 5
  MILES SOUTHEAST OF ST JAMES OR 25 MILES NORTH OF FAIRMONT MOVING
  SOUTHEAST AT 25 MPH.

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

HAMEN

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.