Alert archive / Minnesota / Tornado Warnings in 2003

Tornado Warning 61, NWS Twin Cities, MN

July 14, 2003Le Sueur County, Minnesota

NWS Twin Cities, MN issued this tornado warning at Jul 14, 2003, 7:59 PM CDT for Le Sueur County, Minnesota. It was in force for 31 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, 7:59 PM CDT (00:59 UTC)
Expired: Jul 14, 2003, 8:30 PM CDT
In force: 31 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), 45 km from the middle of the area, began a volume at 00:58 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.

Issued	Product	Office	Lasted
Jul 14, 5:25 PM CDT	Tornado Watch	SPC	5 hr
Jul 14, 7:40 PM CDT	Tornado Watch	SPC	4 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 1.0 hours before the alert went out and 44 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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.

568 
WFUS53 KMPX 150059
TORMPX
MNC079-150130-

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

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  LE SUEUR COUNTY IN SOUTH CENTRAL MINNESOTA

* UNTIL 830 PM CDT

* AT 759 PM CDT...RADAR INDICATED 10 MILES WEST OF HEIDELBERG...OR
  ABOUT 16 MILES NORTHEAST OF ST PETER...MOVING SOUTHEAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  HEIDELBERG.
  KILKENNY.
  LE CENTER.
  MONTGOMERY.
  ST THOMAS.
  LEXINGTON.

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

LAT...LON 4454 9381 4449 9390 4437 9377 4429 9353
          4454 9354

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 14, 7:09 PM CDT	Tornado Warning	MPX	Washington	36 min
Jul 14, 7:12 PM CDT	Tornado Warning	MPX	Brown	33 min
Jul 14, 7:20 PM CDT	Severe Thunderstorm Warning	MPX	Sibley	25 min
Jul 14, 7:37 PM CDT	Tornado Warning	MPX	Blue Earth	38 min
Jul 14, 7:54 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Scott	51 min
Jul 14, 8:05 PM CDT	Tornado Warning	MPX	Nicollet	25 min
Jul 14, 8:13 PM CDT	Tornado Warning	MPX	Blue Earth	32 min
Jul 14, 8:27 PM CDT	Tornado Warning	MPX	Le Sueur	33 min
Jul 14, 8:29 PM CDT	Severe Thunderstorm Warning	MPX	Rice	46 min
Jul 14, 8:44 PM CDT	Tornado Warning	MPX	Blue Earth, Waseca	46 min
Jul 14, 9:04 PM CDT	Tornado Warning	MPX	Faribault	41 min
Jul 14, 9:19 PM CDT	Severe Thunderstorm Warning	MPX	Freeborn, Steele	41 min
Jul 14, 9:42 PM CDT	Tornado Warning	MPX	Freeborn	33 min

Nearby

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