Alert archive / Minnesota / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 67, NWS Twin Cities, MN

July 3, 20034 counties in Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 3, 2003, 11:58 PM CDT for 4 counties in Minnesota. It was in force for 62 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
Jul 3, 2003, 11:58 PM CDT (04:58 UTC)
Expired
Jul 4, 2003, 1:00 AM CDT
In force
62 min
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

Counties Chippewa County, MN, Lac qui Parle County, MN, Stevens County, MN, Swift County, MN

The radar

The Aberdeen radar (KABR), 159 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 watch it was issued in

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

IssuedProductOfficeLasted
Jul 3, 9:40 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 5.0 hours before the alert went out and 170 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 2003-07-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1927 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, Aberdeen, SD at 00:00Z on 2003-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 33 square meters per square second.1939587897117Sfc1 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
1927 J/kg
Mixed-layer CIN
-22 J/kg
Mixed-layer LCL
1633 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
33 m²/s²
0-3 km storm-relative helicity
201 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.8

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KMPX 040458
SVRMPX
MNC023-073-149-151-040600-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1157 PM CDT THU JUL 3 2003

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

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

* UNTIL 100 AM CDT

* AT 1157 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM WITH
  DAMAGING WINDS IN EXCESS OF 75 MPH LOCATED 27 MILES WEST OF
  CHOKIO...OR ABOUT 15 MILES EAST OF SISSETON...MOVING SOUTHEAST AT
  50 MPH.

* LOCATIONS IMPACTED INCLUDE...
  APPLETON.
  MADISON.
  MORRIS.
  DAWSON.
  MILAN.

THIS IS A DANGEROUS STORM WITH DAMAGING WINDS...STAY INDOORS AWAY
FROM WINDOWS.

LAT...LON 4571 9690 4558 9671 4484 9640 4490 9622
          4501 9558 4563 9589 4614 9638

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 4, 12:33 AM CDTSevere Thunderstorm WarningMPXDouglas, Pope42 min
Jul 4, 12:37 AM CDTSevere Thunderstorm WarningMPXMartin53 min
Jul 4, 12:54 AM CDTSevere Thunderstorm WarningMPXChippewa, Lac qui Parle, Stevens, Swift51 min
Jul 4, 1:00 AM CDTSevere Thunderstorm WarningMPXBrown, Redwood, Watonwan60 min
Jul 4, 1:10 AM CDTSevere Thunderstorm WarningMPXDouglas, Pope, Stearns, Todd50 min
Jul 4, 1:16 AM CDTSevere Thunderstorm WarningMPXKandiyohi, Lac qui Parle, Pope, Renville, Yellow Medicine59 min
Jul 4, 1:18 AM CDTSevere Thunderstorm WarningMPXKandiyohi, Renville, Yellow Medicine57 min
Jul 4, 1:28 AM CDTSevere Thunderstorm WarningMPXBlue Earth, Faribault, Martin, Nicollet47 min
Jul 4, 1:55 AM CDTSevere Thunderstorm WarningMPXLe Sueur, McLeod, Sibley50 min
Jul 4, 2:00 AM CDTSevere Thunderstorm WarningMPXBrown, Redwood30 min
Jul 4, 2:09 AM CDTTornado WarningMPXNicollet36 min
Jul 4, 2:24 AM CDTSevere Thunderstorm WarningMPXFreeborn, Rice, Scott, Steele, Waseca51 min
Jul 4, 2:28 AM CDTSevere Thunderstorm WarningMPXKanabec, Mille Lacs47 min
Jul 4, 2:34 AM CDTSevere Thunderstorm WarningMPXBenton, Sherburne, Wright41 min
Jul 4, 2:48 AM CDTSevere Thunderstorm WarningMPXAnoka, Carver, Hennepin, McLeod, Sibley57 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.