Alert archive / Minnesota / Tornado Warnings in 2002

Tornado Warning 13, NWS Sioux Falls, SD

July 28, 2002Lincoln County, Minnesota

NWS Sioux Falls, SD issued this tornado warning at Jul 28, 2002, 2:52 PM CDT for Lincoln County, Minnesota. It was in force for 23 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 28, 2002, 2:52 PM CDT (19:52 UTC)
Expired: Jul 28, 2002, 3:15 PM CDT
In force: 23 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), 88 km from the middle of the area, began a volume at 19:54 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.

What was reported inside it

Time	Report	Where	Remark
Jul 28, 3:13 PM CDT	Hail 1.75	Lake Benton, MN	Large hail caused damage to windows, vehicles, and crops. The amount of crop damage was not known.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

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 28, 1:00 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 7.9 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-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: 99 J/kg
Mixed-layer CIN: -249 J/kg
Mixed-layer LCL: 1295 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 255 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.4

Open this sounding in Storm Lab

The text

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

415 
WFUS53 KFSD 281952
TORFSD
MNC081-282015-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
251 PM CDT SUN JUL 28 2002

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* TORNADO WARNING FOR...
  LINCOLN COUNTY IN SOUTHWEST MINNESOTA

* UNTIL 315 PM CDT

* AT 251 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
  A TORNADIC THUNDERSTORM 2 MILES WEST OF LAKE BENTON...OR ABOUT 
  20 MILES NORTH OF PIPESTONE...MOVING EAST AT 30 MPH.

* SOME LOCATIONS AFFECTED...
  ARCO AROUND 300 PM CDT
  TYLER AROUND 305 PM CDT

THIS WARNING REPLACES THE SEVERE THUNDERSTORM WARNING PREVIOUSLY
ISSUED FOR THE WARNED AREA.

THIS STORM HAS PRODUCED A TORNADO. IF YOU ARE IN THE PATH OF THIS
STORM...TAKE COVER IMMEDIATELY.

THIS THUNDERSTORM CAN PRODUCE A TORNADO AT ANY TIME. TAKE SHELTER
NOW.

LAT...LON 4437 9644 4421 9643 4421 9609 4444 9609

BOUSTEAD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 28, 2:44 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln	31 min
Jul 28, 2:54 PM CDT	Severe Thunderstorm Warning	FSD	Pipestone	36 min
Jul 28, 3:14 PM CDT	Severe Thunderstorm Warning	FSD	Murray	46 min
Jul 28, 3:16 PM CDT	Tornado Warning	FSD	Lincoln, Lyon, Murray	34 min
Jul 28, 3:22 PM CDT	Severe Thunderstorm Warning	FSD	Pipestone	23 min
Jul 28, 3:45 PM CDT	Severe Thunderstorm Warning	FSD	Rock	45 min
Jul 28, 3:51 PM CDT	Severe Thunderstorm Warning	FSD	Lyon, Murray	39 min
Jul 28, 4:08 PM CDT	Severe Thunderstorm Warning	FSD	Cottonwood	52 min

Nearby

Tornado Warnings in Minnesota, 2002 Every tornado warning in 2002 Tornadoes 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.