Alert archive / Minnesota / Tornado Warnings in 2003

Tornado Warning 58, NWS Twin Cities, MN

July 14, 2003Brown County, Minnesota

NWS Twin Cities, MN issued this tornado warning at Jul 14, 2003, 7:12 PM CDT for Brown County, Minnesota. It was in force for 33 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 14, 2003, 7:12 PM CDT (00:12 UTC)
Expired
Jul 14, 2003, 7:45 PM CDT
In force
33 min
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

County Brown County, MN

The radar

The Minneapolis radar (KMPX), 103 km from the middle of the area, began a volume at 00:13 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 watch it was issued in

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

IssuedProductOfficeLasted
Jul 14, 5:25 PM CDTTornado WatchSPC5 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 0.2 hours before the alert went out and 101 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 2003-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 438 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 2003-07-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 357 square meters per square second.19395878Sfc1 km3 km6 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
438 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
837 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
357 m²/s²
0-3 km storm-relative helicity
466 m²/s²
Significant tornado parameter
1.1
Supercell composite
5.1

Open this sounding in Storm Lab

The text

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

289 
WFUS53 KMPX 150012
TORMPX
MNC015-150045-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
711 PM CDT MON JUL 14 2003

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  BROWN COUNTY IN SOUTH CENTRAL MINNESOTA

* UNTIL 745 PM CDT

* AT 711 PM CDT...RADAR INDICATED A DEVELOPING TORNADO OVER SLEEPY
  EYE...OR ABOUT 12 MILES WEST OF NEW ULM...MOVING EAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  NEW ULM.
  SLEEPY EYE.

GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR

LAT...LON 4441 9471 4425 9481 4412 9439 4433 9446

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 14, 7:09 PM CDTTornado WarningMPXWashington36 min
Jul 14, 7:20 PM CDTSevere Thunderstorm WarningMPXSibley25 min
Jul 14, 7:37 PM CDTTornado WarningMPXBlue Earth38 min
Jul 14, 7:54 PM CDTSevere Thunderstorm WarningMPXDakota, Scott51 min
Jul 14, 7:59 PM CDTTornado WarningMPXLe Sueur31 min
Jul 14, 8:05 PM CDTTornado WarningMPXNicollet25 min
Jul 14, 8:13 PM CDTTornado WarningMPXBlue Earth32 min
Jul 14, 8:27 PM CDTTornado WarningMPXLe Sueur33 min
Jul 14, 8:29 PM CDTSevere Thunderstorm WarningMPXRice46 min
Jul 14, 8:44 PM CDTTornado WarningMPXBlue Earth, Waseca46 min
Jul 14, 9:04 PM CDTTornado WarningMPXFaribault41 min
Jul 14, 9:19 PM CDTSevere Thunderstorm WarningMPXFreeborn, Steele41 min
Jul 14, 9:42 PM CDTTornado WarningMPXFreeborn33 min

Nearby

Tornado Warnings in Minnesota, 2003Every tornado warning in 2003Tornadoes 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.