Alert archive / Minnesota / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 56, NWS Twin Cities, MN

June 13, 1990Dakota County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 13, 1990, 12:21 AM CDT for Dakota County, Minnesota. It was in force for 69 min.

The area

The counties it named.

The facts

Issued: Jun 13, 1990, 12:21 AM CDT (05:21 UTC)
Expired: Jun 13, 1990, 1:30 AM CDT
In force: 69 min
Issued by: NWS Twin Cities, MN
Area: Whole counties

County Dakota 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 00:00Z, 5.4 hours before the alert went out and 47 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1326 J/kg
Mixed-layer CIN: -36 J/kg
Mixed-layer LCL: 1196 m above ground
0-6 km bulk shear: 71 kt
0-1 km storm-relative helicity: -50 m²/s²
0-3 km storm-relative helicity: 94 m²/s²
Significant tornado parameter: -0.4
Supercell composite: -2.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMSP 130522
SVRMSP
MNC019-085-037-139-130630-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
1221 AM CDT WED JUN 13 1990
 
THE NATIONAL WEATHER SERVICE IN MINNEAPOLIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  115 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN CENTRAL MINNESOTA
          ...CARVER...MCLEOD
IN EAST CENTRAL MINNESOTA
          ...DAKOTA...SCOTT
 
AT 1210 AM CDT WEDNESDAY MORNING SEVERE THUNDERSTORMS WERE LOCATED
OVER SOUTHERN MCCL0UD AND WESTERN SCOTT COUNTIES. THESE SEVERE
THUNDERSTORMS HAVE A HISTORY OF STRONG WINDS..HAIL AND VERY HEAVY
RAINS. THESE SEVERE THUNDERSTORSMS WERE MOVING EAST AT 45 MILES AN
HOUR. PERSONS IN THE CITIES OF GLENCOE..NORWOOD..COLONGE..CHASKA AND
NEW PRAGUE WILL BE IN THE PATH OF THESE STORMS WITHIN THE HALF HOUR.
IN DAKOTA COUNTY THE CITIES OF ROSEMONT AND FARMINGTON WILL BE IN THE
PATH BETWEEN 1255 AND 115AM THIS WEDNESDAY MORNING.
 
 
WHEN THUNDERSTORMS ARE OCCURRING..MOVE INSIDE A STRONG BUILDING
DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES OR ELECTRICAL
APPLIANCES UNLESS IN AN EMERGENCY. REMEMBER SEVERE THUNDERSTORMS
CAN AND OCCASIONALLY DO PRODUCE TORNADOS WITH LITTLE OR NO WARNING.
NAISTAT

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 12, 8:13 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Le Sueur, Nicollet	32 min
Jun 12, 8:51 PM CDT	Severe Thunderstorm Warning	MPX	Le Sueur, Rice	54 min
Jun 12, 9:43 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue	47 min
Jun 12, 11:09 PM CDT	Severe Thunderstorm Warning	MPX	McLeod, Renville, Sibley	51 min
Jun 12, 11:25 PM CDT	Tornado Warning	MPX	Sibley	35 min
Jun 13, 12:21 AM CDT	Severe Thunderstorm Warning	MPX	Carver, McLeod, Scott	69 min
Jun 13, 1:20 AM CDT	Flash Flood Warning	MPX	Dodge, Goodhue, Olmsted, Wabasha	115 min
Jun 13, 2:05 AM CDT	Severe Thunderstorm Warning	MPX	Freeborn	25 min
Jun 13, 2:30 AM CDT	Severe Thunderstorm Warning	MPX	Freeborn, Mower	45 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 1990 Every severe thunderstorm warning in 1990

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.