Alert archive / Minnesota / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 93, NWS Twin Cities, MN

May 28, 1998Carver County, Scott County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 28, 1998, 12:46 AM CDT for Carver County, Scott County, Minnesota. It was in force for 64 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 28, 1998, 12:46 AM CDT (05:46 UTC)
Expired: May 28, 1998, 1:50 AM CDT
In force: 64 min
Issued by: NWS Twin Cities, MN
Area: Whole counties

Counties Carver County, MN, Scott County, MN

The radar

The Minneapolis radar (KMPX), 15 km from the middle of the area, began a volume at 05:47 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 28, 12:00 AM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 5.8 hours before the alert went out and 14 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: 181 J/kg
Mixed-layer CIN: -103 J/kg
Mixed-layer LCL: 1846 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 66 m²/s²
0-3 km storm-relative helicity: 193 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

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

535 
WUUS1 KMSP 280545 RRA
SVRMSP
MNC019-139-280650-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1246 AM CDT THU MAY 28 1998

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES/CHANHASSEN HAS
ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CARVER COUNTY IN EAST CENTRAL MINNESOTA
  SCOTT COUNTY IN EAST CENTRAL MINNESOTA

* UNTIL 150 AM CDT

* AT 1245 AM CDT...DOPPLER RADAR INDICATED A SEVERE STORM NEAR
  COLOGNE OR ABOUT 25 MILES SOUTHWEST OF MINNEAPOLIS.  THE STORMS
  WERE MOVING EAST AT 25 MPH.

* SOME LOCATIONS AFFECTED
    YOUNG AMERICA
    CHASKA
    CHANHASSEN
    SHAKOPEE
    BELLE PLAINE

THIS IS A DANGEROUS STORM...WITH LARGE HAIL.  STAY INDOORS AWAY
FROM WINDOWS.


CWS

The office that day

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

Issued	Product	Office	Counties	Lasted
May 27, 11:38 PM CDT	Severe Thunderstorm Warning	MPX	Renville	32 min
May 27, 11:47 PM CDT	Severe Thunderstorm Warning	MPX	McLeod	48 min
May 27, 11:59 PM CDT	Severe Thunderstorm Warning	MPX	Carver	46 min
May 28, 12:36 AM CDT	Severe Thunderstorm Warning	MPX	McLeod	34 min
May 28, 12:50 AM CDT	Severe Thunderstorm Warning	MPX	Sibley	30 min
May 28, 12:56 AM CDT	Severe Thunderstorm Warning	MPX	Le Sueur, Rice	64 min
May 28, 1:19 AM CDT	Severe Thunderstorm Warning	MPX	Dakota	46 min
May 28, 1:56 AM CDT	Severe Thunderstorm Warning	MPX	Goodhue, Rice	64 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 1998 Every severe thunderstorm warning in 1998

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; radar from the NEXRAD Level II archive.