Alert archive / South Dakota / Tornado Warnings in 2003

Tornado Warning 15, NWS Aberdeen, SD

June 23, 2003Day County, Grant County, Roberts County, South Dakota

NWS Aberdeen, SD issued this tornado warning at Jun 23, 2003, 7:47 PM CDT for Day County, Grant County, Roberts County, South Dakota. It was in force for 28 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 23, 2003, 7:47 PM CDT (00:47 UTC)
Expired: Jun 23, 2003, 8:15 PM CDT
In force: 28 min
Issued by: NWS Aberdeen, SD
Area: Counties, with a storm outline in the text

Counties Day County, SD, Grant County, SD, Roberts County, SD

The radar

The Aberdeen radar (KABR), 98 km from the middle of the area, began a volume at 00:48 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.

Issued	Product	Office	Lasted
Jun 23, 6:45 PM CDT	Tornado Watch	SPC	4 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 0.8 hours before the alert went out and 105 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: 1534 J/kg
Mixed-layer CIN: -21 J/kg
Mixed-layer LCL: 996 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 120 m²/s²
0-3 km storm-relative helicity: 407 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 4.3

Open this sounding in Storm Lab

The text

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

001 
WFUS53 KABR 240047
TORABR
SDC037-051-109-240115-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ABERDEEN SD
747 PM CDT MON JUN 23 2003

THE NATIONAL WEATHER SERVICE IN ABERDEEN HAS ISSUED A

* TORNADO WARNING FOR...
  DAY COUNTY IN NORTHEAST SOUTH DAKOTA
  GRANT COUNTY IN NORTHEAST SOUTH DAKOTA
  ROBERTS COUNTY IN NORTHEAST SOUTH DAKOTA

* UNTIL 815 PM CDT

* AT 747 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 6 MILES
  SOUTHWEST OF ORTLEY...OR ABOUT 13 MILES EAST OF WEBSTER...MOVING
  EAST AT 15 MPH.

* THE TORNADO WILL BE NEAR...
  ORTLEY AROUND 755 PM CDT
  SUMMIT AROUND 815 PM CDT

THIS IS AN EXTREMELY DANGEROUS AND POTENTIALLY LIFE THREATENING
SITUATION. IF YOU ARE IN THE PATH OF THIS TORNADO TAKE SHELTER NOW

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE IN
ABERDEEN.

LAT...LON 4534 9730 4521 9725 4520 9700 4534 9706

$$
HARDING

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 23, 7:38 PM CDT	Severe Thunderstorm Warning	ABR	Day, Roberts	67 min
Jun 23, 8:16 PM CDT	Tornado Warning	ABR	Grant, Roberts	44 min
Jun 24, 2:28 AM CDT	Severe Thunderstorm Warning	ABR	Brown, Day	32 min
Jun 24, 2:42 AM CDT	Severe Thunderstorm Warning	ABR	Buffalo	48 min
Jun 24, 2:59 AM CDT	Severe Thunderstorm Warning	ABR	Hand, Hyde	61 min
Jun 24, 4:25 AM CDT	Severe Thunderstorm Warning	ABR	Day, Roberts	35 min
Jun 24, 3:30 PM CDT	Severe Thunderstorm Warning	ABR	Grant, Roberts	45 min
Jun 24, 6:42 PM CDT	Severe Thunderstorm Warning	ABR	Day	33 min
Jun 24, 6:54 PM CDT	Tornado Warning	ABR	Day	36 min

Nearby

Tornado Warnings in South Dakota, 2003 Every tornado warning in 2003 Tornadoes in 2003

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.