Alert archive / Minnesota / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 32, NWS Twin Cities, MN

April 19, 1998McLeod County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Apr 19, 1998, 3:23 PM CDT for McLeod 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
Apr 19, 1998, 3:23 PM CDT (20:23 UTC)
Expired
Apr 19, 1998, 4:10 PM CDT
In force
47 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

County McLeod County, MN

The radar

The Minneapolis radar (KMPX), 56 km from the middle of the area, began a volume at 20:26 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 12:00Z, 8.4 hours before the alert went out and 53 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 12:00Z on 1998-04-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 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 12:00Z on 1998-04-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 square meters per square second.1939Sfc1 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
2 J/kg
Mixed-layer CIN
-68 J/kg
Mixed-layer LCL
1065 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
77 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.

546 
WUUS1 KMSP 192026 RRA
SVRMSP
MNC085-192110-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
323 PM CDT SUN APR 19 1998


* SEVERE THUNDERSTORM WARNING FOR
  MCLEOD COUNTY - CENTRAL MINNESOTA

* UNTIL 410 PM CDT

* SOME LOCATIONS AFFECTED
    HUTCHINSON
    STEWART
    BISCAY

* AT 325 PM CDT DOPPLER RADAR INDICATED A SEVERE STORM WITH LARGE
  HAIL 5 SOUTHWEST OF HUTCHINSON.  THE STORM WAS MOVING NORTH 10
MPH.


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


GAT/BAP

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.