Alert archive / Minnesota / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 49, NWS Twin Cities, MN

May 30, 1989Faribault County, Freeborn County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 30, 1989, 8:09 AM CDT for Faribault County, Freeborn County, Minnesota. It was in force for 66 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: May 30, 1989, 8:09 AM CDT (13:09 UTC)
Expired: May 30, 1989, 9:15 AM CDT
In force: 66 min
Issued by: NWS Twin Cities, MN
Area: Whole counties

Counties Faribault County, MN, Freeborn County, MN

The radar

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

What was reported inside it

Time	Report	Where	Remark
May 30, 8:25 AM CDT	Hail 1.75	Freeborn, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Minneapolis, MN (KSTC), launched 12:00Z, 1.2 hours before the alert went out and 131 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: NaN m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 121 m²/s²
0-3 km storm-relative helicity: 165 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 KRST 301309
SVRRST
MNC043-047-099-301415-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE ROCHESTER MN
809 AM CDT TUE MAY 30 1989

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 915 AM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE SOUTH CENTRAL PART OF MINNESOTA
      EASTERN FARIBAULT...FREEBORN...

   IN THE SOUTHEAST PART OF MINNESOTA
      WESTERN MOWER...

THIS WARNING INCLUDES THE TOWNS OF ALBERT LEA AND AUSTIN.
AT 9 AM A SEVERE THUNDERSTORM WAS LOCATED 30 MILES WEST OF
ALBERT LEA MINNESOTA BETWEEN WINNEBAGO AND WELLS AND MOVING EAST
AT 40 MPH TOWARD ALBERT LEA AND AUSTIN.

IF YOU ARE IN AN AREA THREATENED BY THE STORM...GO TO A REINFORCED
SHELTER AND PREPARE FOR DAMAGING WIND...LARGE HAIL...VERY HEAVY
RAIN...AND LIGHTNING.

AMANN

The office that day

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

Issued	Product	Office	Counties	Lasted
May 29, 9:35 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue, Wabasha	40 min
May 29, 10:35 PM CDT	Severe Thunderstorm Warning	MPX	Wabasha	40 min
May 30, 7:22 AM CDT	Severe Thunderstorm Warning	MPX	Faribault, Martin	53 min
May 30, 8:09 AM CDT	Severe Thunderstorm Warning	MPX	Mower	66 min
May 30, 8:51 AM CDT	Tornado Warning	MPX	Houston	39 min
May 30, 9:07 AM CDT	Severe Thunderstorm Warning	MPX	Fillmore, Mower	53 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 1989 Every severe thunderstorm warning in 1989

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.