Alert archive / Minnesota / Tornado Warnings in 2003

Tornado Warning 7, NWS Duluth, MN

July 2, 2003Cass County, Minnesota

NWS Duluth, MN issued this tornado warning at Jul 2, 2003, 6:03 PM CDT for Cass County, Minnesota. It was in force for 57 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 2, 2003, 6:03 PM CDT (23:03 UTC)
Expired: Jul 2, 2003, 7:00 PM CDT
In force: 57 min
Issued by: NWS Duluth, MN
Area: Counties, with a storm outline in the text

County Cass County, MN

The radar

The Duluth radar (KDLH), 154 km from the middle of the area, began a volume at 23:03 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 2, 2:40 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

International Fa, MN (KINL), launched 12:00Z, 11.1 hours before the alert went out and 166 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: 774 J/kg
Mixed-layer CIN: -221 J/kg
Mixed-layer LCL: 740 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 98 m²/s²
0-3 km storm-relative helicity: 182 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.8

Open this sounding in Storm Lab

The text

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

122 
WFUS53 KDLH 022303 CCA
TORDLH
MNC021-030000-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING...CORRECTED FOR TEXT
NATIONAL WEATHER SERVICE DULUTH MN
601 PM CDT WED JUL 2 2003

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN CASS COUNTY IN NORTH CENTRAL MINNESOTA

* UNTIL 700 PM CDT

* AT 601 PM CDT...DOPPLER RADAR INDICATED A TORNADO 4 MILES SOUTHWEST
  OF BOY RIVER...OR ABOUT 32 MILES WEST OF GRAND RAPIDS...MOVING EAST
  AT 45 MPH.

* THIS TORNADO WILL BE NEAR...
  REMER AROUND 610 PM CDT...

IF YOU ARE IN THE PATH OF THIS TORNADO...GO TO A BASEMENT OR A SMALL
INTERIOR ROOM ON THE LOWEST FLOOR IF YOU ARE IN A MOBILE HOME...
CAMPER OR ARE CAUGHT OUTDOORS SEEK STURDY SHELTER. AS A LAST
RESORT...LIE FLAT IN A DITCH AND COVER YOUR HEAD

THIS WARNING REPLACES THE SEVERE THUNDERSTORMS WARNING. 

LAT...LON 4727 9437 4701 9421 4701 9380 4742 9410

$$

CRS/EJS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 2, 4:55 AM CDT	Severe Thunderstorm Warning	DLH	Cook, Lake	50 min
Jul 2, 5:08 AM CDT	Special Marine Warning	DLH		2 hr
Jul 2, 5:43 AM CDT	Severe Thunderstorm Warning	DLH	Cook, Lake	62 min
Jul 2, 7:04 AM CDT	Special Marine Warning	DLH		116 min
Jul 2, 7:04 AM CDT	Special Marine Warning	DLH		116 min
Jul 2, 3:53 PM CDT	Severe Thunderstorm Warning	DLH	Cass, Itasca, Koochiching	52 min
Jul 2, 4:35 PM CDT	Severe Thunderstorm Warning	DLH	Cass, Itasca	55 min
Jul 2, 4:45 PM CDT	Severe Thunderstorm Warning	DLH	Koochiching	60 min
Jul 2, 5:15 PM CDT	Severe Thunderstorm Warning	DLH	Saint Louis	60 min
Jul 2, 5:33 PM CDT	Severe Thunderstorm Warning	DLH	Aitkin	57 min
Jul 2, 5:42 PM CDT	Severe Thunderstorm Warning	DLH	Cass	63 min
Jul 2, 6:01 PM CDT	Severe Thunderstorm Warning	DLH	Saint Louis	59 min
Jul 2, 6:01 PM CDT	Tornado Warning	DLH	Cass	59 min
Jul 2, 6:25 PM CDT	Tornado Warning	DLH	Aitkin, Itasca	65 min
Jul 2, 6:43 PM CDT	Tornado Warning	DLH	Cass, Crow Wing	62 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.