Alert archive / Minnesota / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 91, NWS Twin Cities, MN

May 27, 1998Carver County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 27, 1998, 11:59 PM CDT for Carver County, Minnesota. It was in force for 46 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 27, 1998, 11:59 PM CDT (04:59 UTC)
Expired
May 28, 1998, 12:45 AM CDT
In force
46 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

County Carver County, MN

The radar

The Minneapolis radar (KMPX), 19 km from the middle of the area, began a volume at 05:01 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 nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 5.0 hours before the alert went out and 16 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 00:00Z on 1998-05-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 181 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 00:00Z on 1998-05-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 66 square meters per square second.19395878Sfc1 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
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.

339 
WUUS1 KMSP 280500 RRA
SVRMSP
MNC019-280545-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1159 PM CDT WED MAY 27 1998

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

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

* UNTIL 1245 AM CDT

* AT 1200 AM CDT...DOPPLER RADAR INDICATED A SEVERE STORM NEAR YOUNG
  AMERICA OR ABOUT 20 MILES WEST OF MINNEAPOLIS.  THE STORM WAS
  MOVING EAST AT 25 MPH.

* SOME LOCATIONS AFFECTED
    COLOGNE
    NORWOOD
    CHASKA
    WACONIA

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


JVM

The office that day

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

IssuedProductOfficeCountiesLasted
May 27, 11:38 PM CDTSevere Thunderstorm WarningMPXRenville32 min
May 27, 11:47 PM CDTSevere Thunderstorm WarningMPXMcLeod48 min
May 28, 12:36 AM CDTSevere Thunderstorm WarningMPXMcLeod34 min
May 28, 12:46 AM CDTSevere Thunderstorm WarningMPXCarver, Scott64 min
May 28, 12:50 AM CDTSevere Thunderstorm WarningMPXSibley30 min
May 28, 12:56 AM CDTSevere Thunderstorm WarningMPXLe Sueur, Rice64 min
May 28, 1:19 AM CDTSevere Thunderstorm WarningMPXDakota46 min
May 28, 1:56 AM CDTSevere Thunderstorm WarningMPXGoodhue, Rice64 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 1998Every 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.