Alert archive / Minnesota / Severe Thunderstorm Warnings in 1988

Severe Thunderstorm Warning 18, NWS Twin Cities, MN

June 19, 1988Le Sueur County, Nicollet County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 19, 1988, 5:11 PM CDT for Le Sueur County, Nicollet County, Minnesota. It was in force for 64 min.

The area

The counties it named.

The facts

Issued
Jun 19, 1988, 5:11 PM CDT (22:11 UTC)
Expired
Jun 19, 1988, 6:15 PM CDT
In force
64 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

Counties Le Sueur County, MN, Nicollet County, MN

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Minneapolis, MN (KSTC), launched 12:00Z, 10.2 hours before the alert went out and 63 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 1988-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1394 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 1988-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 135 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
1394 J/kg
Mixed-layer CIN
-219 J/kg
Mixed-layer LCL
1516 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
135 m²/s²
0-3 km storm-relative helicity
110 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMSP 192212
SVRRST
MNC079-103-192315-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ROCHESTER MINNESOTA
ISSUED BY MINNEAPOLIS MN
511 PM CDT SUN JUN 19 1988
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  615 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN SOUTH CENTRAL MINNESOTA
          ...LESUEUR...EASTERN NICOLLET
 
AT 500 PM GOLF BALL SIZE HAIL WAS REPORTED NEAR LEXINGTON MINNESOTA
ABOUT 22 MILES NORTHEAST OF MANKATO MINNESOTA. RADAR ALSO INDICATED A
SEVERE THUNDERSTORM NEAR NEW SWEDEN MINNESOTA..ABOUT 16 MILES
NORTHWEST OF MANKATO AND AT ST THOMAS MINNESOTA ABOUT 24 MILES
NORTHEAST OF MANKATO MINNESOTA. CITIES IN THE PATH OF THESE STORMS ARE
ST PETER AND LECENTER MINNESOTA.
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM 3ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
DOMBROWSKI

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, Jun 19, 3:05 PM CDT, 2 hours 6 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST CLOUD MN
300 PM CDT SUN JUN 19 1988

AN ISOLATED THUNDERSTORM CONTINUES TO DEVELOP OVER SOUTH CENTRAL
SHERBURNE COUNTY...ABOUT 25 MILES SOUTH SOUTHESAST OF ST
CLOUD MINNESOTA.

AT 255 PM CDT THE SHERBURNE COUNTY SHERIFF OFFICE REPORTED HEAVY RAIN

AND SMALL HAIL AT ORROCK...WHICH IS 21 MILES SOUTHEAST OF ST CLOUD
MINNEOSTA. THIS THUNDERSTORM WAS MOVING EAST 25 TO 30 MPH.

RUBIN

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 6:05 PM CDTSevere Thunderstorm WarningMPXAnoka, Washington55 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 1988Every severe thunderstorm warning in 1988

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.