Alert archive / Minnesota / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 16, NWS Twin Cities, MN

June 23, 2003Le Sueur County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 23, 2003, 4:12 AM CDT for Le Sueur County, Minnesota. It was in force for 48 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 23, 2003, 4:12 AM CDT (09:12 UTC)
Expired
Jun 23, 2003, 5:00 AM CDT
In force
48 min
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

County Le Sueur County, MN

The radar

The Minneapolis radar (KMPX), 58 km from the middle of the area, began a volume at 09:13 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, 9.2 hours before the alert went out and 58 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 2003-06-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1597 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 2003-06-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 128 square meters per square second.193958Sfc1 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
1597 J/kg
Mixed-layer CIN
-21 J/kg
Mixed-layer LCL
1108 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
128 m²/s²
0-3 km storm-relative helicity
217 m²/s²
Significant tornado parameter
0.9
Supercell composite
5.8

Open this sounding in Storm Lab

The text

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

789 
WUUS53 KMPX 230912
SVRMPX
MNC079-231000-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
412 AM CDT MON JUN 23 2003

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LE SUEUR COUNTY IN SOUTH CENTRAL MINNESOTA

* UNTIL 500 AM CDT

* AT 412 AM CDT...RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE
  HAIL 4 MILES SOUTHWEST OF CLEVELAND...OR ABOUT 6 MILES SOUTHEAST OF
  ST PETER...MOVING NORTHEAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  CLEVELAND.
  HEIDELBERG.
  KASOTA.
  LE CENTER.

LAT...LON 4427 9403 4425 9380 4449 9355 4453 9380

$$
JPR

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 22, 7:23 PM CDTSevere Thunderstorm WarningMPXPope37 min
Jun 22, 9:40 PM CDTSevere Thunderstorm WarningMPXMille Lacs35 min
Jun 22, 10:49 PM CDTSevere Thunderstorm WarningMPXMeeker41 min
Jun 22, 11:21 PM CDTTornado WarningMPXMeeker24 min
Jun 22, 11:23 PM CDTTornado WarningMPXMeeker22 min
Jun 23, 7:18 AM CDTSevere Thunderstorm WarningMPXRedwood42 min
Jun 23, 1:11 PM CDTSevere Thunderstorm WarningMPXDouglas49 min
Jun 23, 1:20 PM CDTSevere Thunderstorm WarningMPXPope40 min
Jun 23, 1:49 PM CDTSevere Thunderstorm WarningMPXTodd41 min
Jun 23, 3:27 PM CDTSevere Thunderstorm WarningMPXKandiyohi33 min
Jun 23, 3:40 PM CDTTornado WarningMPXKandiyohi35 min
Jun 23, 4:07 PM CDTFlash Flood WarningMPXKandiyohi, Stearns113 min
Jun 23, 4:12 PM CDTSevere Thunderstorm WarningMPXMeeker, Stearns63 min
Jun 23, 4:30 PM CDTTornado WarningMPXMeeker30 min
Jun 23, 4:51 PM CDTSevere Thunderstorm WarningMPXRenville24 min
Jun 23, 5:16 PM CDTSevere Thunderstorm WarningMPXRenville14 min
Jun 23, 5:17 PM CDTSevere Thunderstorm WarningMPXKandiyohi, Meeker28 min
Jun 23, 5:29 PM CDTTornado WarningMPXRenville31 min
Jun 23, 5:33 PM CDTFlash Flood WarningMPXDouglas, Todd2 hr
Jun 23, 6:23 PM CDTTornado WarningMPXRenville37 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2003Every severe thunderstorm warning in 2003

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.