Alert archive / Minnesota / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 42, NWS Twin Cities, MN

May 15, 1998Lac qui Parle County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 15, 1998, 4:48 AM CDT for Lac qui Parle County, Minnesota. It was in force for 47 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 15, 1998, 4:48 AM CDT (09:48 UTC)
Expired
May 15, 1998, 5:35 AM CDT
In force
47 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

County Lac qui Parle County, MN

The radar

The Sioux Falls radar (KFSD), 163 km from the middle of the area, began a volume at 09:50 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

Aberdeen, SD (KABR), launched 00:00Z, 9.8 hours before the alert went out and 176 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, Aberdeen, SD at 00:00Z on 1998-05-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2296 joules per kilogram.LCLEL10008507005003002001001 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, Aberdeen, SD at 00:00Z on 1998-05-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 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
2296 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
1504 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
116 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 150948 RRA
SVRMSP
MNC073-151035-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
448 AM CDT FRI MAY 15 1998

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

* SEVERE THUNDERSTORM WARNING FOR...
  LAC QUI PARLE COUNTY IN WEST CENTRAL MINNESOTA

* UNTIL 535 AM CDT

* AT AT 446 AM CDT...DOPPLER RADAR INDICATED A SEVERE STORM WITH
  LARGE HAIL NEAR ROSEN...ABOUT 40 MIL"ES NORTHWEST OF MONTEVIDEO.
  THE STORM WAS MOVING NORTHEAST AT 40 MPH.

* SOME LOCATIONS AFFECTED
    ROSEN
    BELLINGHAM
    LOUISBURG
    MADISON

THIS IS A DANGEROUS STORM.  STAY INDOORS AWAY FROM WINDOWS.
DWE

The office that day

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

IssuedProductOfficeCountiesLasted
May 15, 2:31 AM CDTSevere Thunderstorm WarningMPXFaribault12 hr
May 15, 2:42 AM CDTTornado WarningMPXFaribault, Martin48 min
May 15, 3:02 AM CDTSevere Thunderstorm WarningMPXNicollet13 hr
May 15, 1:08 PM CDTSevere Thunderstorm WarningMPXPope, Stearns32 min
May 15, 1:23 PM CDTSevere Thunderstorm WarningMPXBenton, Stearns37 min
May 15, 1:50 PM CDTSevere Thunderstorm WarningMPXMorrison40 min
May 15, 2:09 PM CDTSevere Thunderstorm WarningMPXMartin51 min
May 15, 3:27 PM CDTSevere Thunderstorm WarningMPXLe Sueur, Sibley63 min
May 15, 3:55 PM CDTSevere Thunderstorm WarningMPXRice, Scott50 min
May 15, 4:09 PM CDTSevere Thunderstorm WarningMPXCarver51 min
May 15, 4:12 PM CDTSevere Thunderstorm WarningMPXAnoka, Dakota, Hennepin, Ramsey, Wright63 min
May 15, 4:14 PM CDTSevere Thunderstorm WarningMPXMeeker31 min
May 15, 4:34 PM CDTSevere Thunderstorm WarningMPXSherburne, Stearns56 min
May 15, 4:34 PM CDTSevere Thunderstorm WarningMPXWashington56 min
May 15, 4:47 PM CDTSevere Thunderstorm WarningMPXBenton, Isanti, Mille Lacs58 min
May 15, 4:47 PM CDTSevere Thunderstorm WarningMPXChisago58 min
May 15, 4:51 PM CDTTornado WarningMPXAnoka, Ramsey, Washington29 min
May 15, 4:56 PM CDTSevere Thunderstorm WarningMPXMorrison, Todd64 min
May 15, 5:18 PM CDTSevere Thunderstorm WarningMPXKanabec57 min
May 15, 5:46 PM CDTSevere Thunderstorm WarningMPXMille Lacs29 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.