Alert archive / Minnesota / Tornado Warnings in 2004

Tornado Warning 17, NWS Twin Cities, MN

May 30, 2004Sherburne County, Minnesota

NWS Twin Cities, MN issued this tornado warning at May 30, 2004, 3:37 PM CDT for Sherburne County, Minnesota. It was in force for 23 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: May 30, 2004, 3:37 PM CDT (20:37 UTC)
Expired: May 30, 2004, 4:00 PM CDT
In force: 23 min
Issued by: NWS Twin Cities, MN
Area: Counties, with a storm outline in the text

County Sherburne County, MN

The radar

The Minneapolis radar (KMPX), 82 km from the middle of the area, began a volume at 20:40 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 nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 8.6 hours before the alert went out and 80 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 482 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 370 m²/s²
0-3 km storm-relative helicity: 382 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

383 
WFUS53 KMPX 302037
TORMPX
MNC141-302100-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
336 PM CDT SUN MAY 30 2004

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN SHERBURNE COUNTY IN CENTRAL MINNESOTA

* UNTIL 400 PM CDT

* AT 335 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO OVER   
  SHERBURNE COUNTY IN THE VICINITY OF CLEAR LAKE...OR ABOUT 11 MILES 
  EAST OF ST CLOUD...MOVING NORTHEAST AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
  CLEAR LAKE
  CABLE
  SANTIAGO

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 4552 9414 4539 9395 4556 9369 4556 9403
          4554 9408

$$

MBK

The office that day

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

Issued	Product	Office	Counties	Lasted
May 29, 10:40 PM CDT	Flash Flood Warning	MPX	Chippewa, Redwood, Renville, Yellow Medicine	6 hr
May 30, 12:41 AM CDT	Severe Thunderstorm Warning	MPX	Scott	34 min
May 30, 1:08 AM CDT	Flash Flood Warning	MPX	McLeod, Sibley	4 hr
May 30, 6:50 PM CDT	Tornado Warning	MPX	Goodhue	40 min

Nearby

Tornado Warnings in Minnesota, 2004 Every tornado warning in 2004 Tornadoes in 2004

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.