Alert archive / Minnesota / Tornado Warnings in 2007

Tornado Warning 37, NWS Sioux Falls, SD

June 2, 2007Lyon County, Minnesota

NWS Sioux Falls, SD issued this tornado warning at Jun 2, 2007, 6:23 PM CDT for Lyon County, Minnesota. It was in force for 37 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
Jun 2, 2007, 6:23 PM CDT (23:23 UTC)
Expired
Jun 2, 2007, 7:00 PM CDT
In force
37 min
Issued by
NWS Sioux Falls, SD
Area
Counties, with a storm outline in the text

County Lyon County, MN

The radar

The Sioux Falls radar (KFSD), 121 km from the middle of the area, began a volume at 23:25 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, 11.4 hours before the alert went out and 172 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 12:00Z on 2007-06-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2007-06-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -44 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
774 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
-44 m²/s²
0-3 km storm-relative helicity
10 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.

000 
WFUS53 KFSD 022324
TORFSD
MNC083-030000-
/O.NEW.KFSD.TO.W.0037.070602T2323Z-070603T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
623 PM CDT SAT JUN 2 2007

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN LYON COUNTY IN SOUTHWEST MINNESOTA

* UNTIL 700 PM CDT

* AT 623 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A FUNNEL CLOUD 9
  MILES NORTH OF TRACY...OR ABOUT 8 MILES SOUTHEAST OF MARSHALL...
  MOVING SOUTH AT 10 MPH.

* THE TORNADO WILL BE NEAR...
   TRACY AROUND 700 PM CDT...

IF YOU ARE IN THE PATH OF THIS STORM...TAKE COVER IMMEDIATELY.

LAT...LON 4446 9560 4443 9577 4421 9570 4422 9560

$$

CHAPMAN
2 follow-up statements
000 
WWUS53 KFSD 022338
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
637 PM CDT SAT JUN 2 2007

MNC083-030000-
/O.CON.KFSD.TO.W.0037.000000T0000Z-070603T0000Z/
LYON MN-
637 PM CDT SAT JUN 2 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR
EASTERN LYON COUNTY...

AT 637 PM CDT...LAW ENFORCEMENT REPORTED SEVERAL FUNNEL CLOUDS ALONG 
A LINE EXTENDING FROM 13 MILES NORTH OF TRACY TO TRACY...OR ALONG A 
LINE EXTENDING FROM MARSHALL TO 17 MILES NORTH OF SLAYTON...MOVING 
SOUTH AT 10 MPH. THESE STORMS WILL CONTINUE TO PRODUCE NUMEROUS 
FUNNEL CLOUDS...WITH POTENTIAL FOR A BRIEF TOUCHDOWN...ESPECIALLY
WITHIN AN AREA BOUNDED BY AMIRET...GARVIN AND TRACY.

TORNADO PRODUCING STORMS WILL BE NEAR...
  RURAL EASTERN LYON COUNTY THROUGH 700 PM CDT

IF YOU ARE IN THE PATH OF THIS STORM...TAKE COVER IMMEDIATELY.

LAT...LON 4446 9560 4443 9577 4420 9576 4422 9560

$$

CHAPMAN
000 
WWUS53 KFSD 030000
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
659 PM CDT SAT JUN 2 2007

MNC083-030007-
/O.EXP.KFSD.TO.W.0037.000000T0000Z-070603T0000Z/
LYON MN-
659 PM CDT SAT JUN 2 2007

...THE TORNADO WARNING FOR EASTERN LYON COUNTY EXPIRES AT 700 PM
CDT...

A LINE OF SHOWERS AND THUNDERSTORMS WILL CONTINUE OVER EASTERN LYON 
COUNTY THROUGH 730 PM...FROM EAST OF MARSHALL TO AROUND TRACY AND 
GARVIN. BRIEF FUNNEL CLOUDS MAY OCCUR WITH THESE STORMS...BUT THESE 
ARE NOT EXPECTED TO TOUCH DOWN.  IF YOU FEEL YOUR SAFETY IS 
THREATENED...TAKE IT UPON YOURSELF TO SEEK SHELTER.

LAT...LON 4446 9560 4443 9577 4420 9576 4422 9560

$$

CHAPMAN

The office that day

Everything else NWS Sioux Falls, SD issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 2, 5:33 PM CDTTornado WarningFSDLincoln27 min

Nearby

Tornado Warnings in Minnesota, 2007Every tornado warning in 2007Tornadoes in 2007

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.