Alert archive / Minnesota / Tornado Warnings in 2002

Tornado Warning 15, NWS Sioux Falls, SD

August 3, 2002Lincoln County, Minnesota

NWS Sioux Falls, SD issued this tornado warning at Aug 3, 2002, 5:10 PM CDT for Lincoln County, Minnesota. It was in force for 20 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
Aug 3, 2002, 5:10 PM CDT (22:10 UTC)
Expired
Aug 3, 2002, 5:30 PM CDT
In force
20 min
Issued by
NWS Sioux Falls, SD
Area
Counties, with a storm outline in the text

County Lincoln County, MN

The radar

The Sioux Falls radar (KFSD), 126 km from the middle of the area, began a volume at 22:12 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.

IssuedProductOfficeLasted
Aug 3, 3:00 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 10.2 hours before the alert went out and 178 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, Aberdeen, SD at 12:00Z on 2002-08-03Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Aberdeen, SD at 12:00Z on 2002-08-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 322 square meters per square second.19395878Sfc1 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
908 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
322 m²/s²
0-3 km storm-relative helicity
548 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

The text

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

813 
WFUS53 KFSD 032210
TORFSD
MNC081-032230-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
509 PM CDT SAT AUG 3 2002

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEAST LINCOLN COUNTY IN SOUTHWEST MINNESOTA
 
* UNTIL 530 PM CDT

* AT 509 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  THUNDERSTORM WITH A DEVELOPING TORNADO 6 MILES WEST OF TAUNTON...OR
  ABOUT 22 MILES NORTHWEST OF MARSHALL...MOVING NORTHEAST AT 20 MPH.

* SOME LOCATIONS AFFECTED...
  TAUNTON AROUND 515 PM CDT

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

LAT...LON 4462 9636 4449 9618 4468 9589 4482 9609

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 3, 4:33 PM CDTSevere Thunderstorm WarningFSDLincoln27 min
Aug 3, 4:42 PM CDTSevere Thunderstorm WarningFSDPipestone48 min
Aug 3, 5:25 PM CDTSevere Thunderstorm WarningFSDLincoln35 min
Aug 3, 5:29 PM CDTSevere Thunderstorm WarningFSDPipestone16 min
Aug 3, 6:21 PM CDTSevere Thunderstorm WarningFSDLyon, Pipestone24 min
Aug 3, 6:36 PM CDTSevere Thunderstorm WarningFSDMurray24 min

Nearby

Tornado Warnings in Minnesota, 2002Every tornado warning in 2002Tornadoes in 2002

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.