Alert archive / Minnesota / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 71, NWS Twin Cities, MN

July 4, 2003Brown County, Redwood County, Watonwan County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 4, 2003, 1:00 AM CDT for Brown County, Redwood County, Watonwan County, Minnesota. It was in force for 60 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 4, 2003, 1:00 AM CDT (06:00 UTC)
Expired
Jul 4, 2003, 2:00 AM CDT
In force
60 min
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

Counties Brown County, MN, Redwood County, MN, Watonwan County, MN

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

Minneapolis, MN (KMPX), launched 00:00Z, 6.0 hours before the alert went out and 137 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 2003-07-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 151 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 2003-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -47 square meters per square second.1939587897Sfc1 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
151 J/kg
Mixed-layer CIN
-708 J/kg
Mixed-layer LCL
1300 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
-47 m²/s²
0-3 km storm-relative helicity
45 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.5

Open this sounding in Storm Lab

The text

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

102 
WUUS53 KMPX 040600
SVRMPX
MNC015-127-165-040700-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
100 AM CDT FRI JUL 4 2003

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  REDWOOD COUNTY IN SOUTHWEST MINNESOTA
  BROWN COUNTY IN SOUTH CENTRAL MINNESOTA
  WATONWAN COUNTY IN SOUTH CENTRAL MINNESOTA

* UNTIL 200 AM CDT

* AT 100 AM CDT...RADAR INDICATED A SEVERE THUNDERSTORM WITH DAMAGING
  WINDS IN EXCESS OF 75 MPH LOCATED 12 MILES SOUTH OF SANBORN...OR
  ABOUT 14 MILES NORTH OF WINDOM...MOVING NORTHEAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  SLEEPY EYE.
  ST JAMES.
  REDWOOD FALLS.
  NEW ULM.
  HANSKA.

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

LAT...LON 4409 9535 4396 9518 4389 9442 4423 9448
          4460 9530

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 3, 11:58 PM CDTSevere Thunderstorm WarningMPXChippewa, Lac qui Parle, Stevens, Swift62 min
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, 1:10 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.