Alert archive / Minnesota / Tornado Warnings in 2004

Tornado Warning 19, NWS Twin Cities, MN

May 30, 2004Chisago County, Washington County, Minnesota

NWS Twin Cities, MN issued this tornado warning at May 30, 2004, 7:05 PM CDT for Chisago County, Washington County, Minnesota. It was in force for 40 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, 7:05 PM CDT (00:05 UTC)
Expired
May 30, 2004, 7:45 PM CDT
In force
40 min
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

Counties Chisago County, MN, Washington County, MN

The radar

The Minneapolis radar (KMPX), 66 km from the middle of the area, began a volume at 00:07 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

International Fa, MN (KINL), launched 00:00Z, 0.1 hours before the alert went out and 376 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, International Fa, MN at 00:00Z on 2004-05-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLEL10008507005003002001001 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, International Fa, MN at 00:00Z on 2004-05-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 270 square meters per square second.193958Sfc1 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
1 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
482 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
270 m²/s²
0-3 km storm-relative helicity
341 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.

521 
WFUS53 KMPX 310005
TORMPX
MNC025-163-310045-

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

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  CHISAGO COUNTY IN EAST CENTRAL MINNESOTA
  NORTHERN WASHINGTON COUNTY IN EAST CENTRAL MINNESOTA

* UNTIL 745 PM CDT

* AT 658 PM CDT...RADAR INDICATED A STORM CAPABLE OF PRODUCING A
  TORNADO...9 MILES NORTHWEST OF STILLWATER...OR ABOUT 17 MILES      
  NORTHEAST OF ST PAUL...MOVING NORTHEAST AT 20 MPH.  

* LOCATIONS IMPACTED INCLUDE...
  HUGO.
  FOREST LAKE.
  LINDSTROM.
  WYOMING.  

LAT...LON 4506 9299 4503 9282 4540 9270 4547 9300

$$

Nearby

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