Alert archive / South Dakota / Tornado Warnings in 1993

Tornado Warning 18, NWS Aberdeen, SD

July 22, 1993Potter County, South Dakota

NWS Aberdeen, SD issued this tornado warning at Jul 22, 1993, 4:47 PM CDT for Potter County, South Dakota. It was in force for 28 min.

The area

The counties it named.

The facts

Issued: Jul 22, 1993, 4:47 PM CDT (21:47 UTC)
Expired: Jul 22, 1993, 5:15 PM CDT
In force: 28 min
Issued by: NWS Aberdeen, SD
Area: Whole counties

County Potter County, SD

The nearest sounding before it

Aberdeen, SD (KHON), launched 12:00Z, 9.8 hours before the alert went out and 124 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: 19 J/kg
Mixed-layer CIN: -234 J/kg
Mixed-layer LCL: 568 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 98 m²/s²
0-3 km storm-relative helicity: 150 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jul 22, 3:15 PM CDT, 1 hour 32 minutes before

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Special weather statement, Jul 22, 3:17 PM CDT, 1 hour 30 minutes before

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Special weather statement, Jul 22, 3:21 PM CDT, 1 hour 26 minutes before

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Special weather statement, Jul 22, 3:22 PM CDT, 1 hour 25 minutes before

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Local storm report, Jul 22, 4:23 PM CDT, 24 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
423 PM CDT THU JUL 22 1993

STORM DATA FOR JULY 22 1993

 TIME            COUNTY..LOCATION           CHARACTER OF STORM..DAMAGE
.......................................................................

 414 PM CDT     POTTER...7 MILES           FUNNEL CLOUD SPOTTED BY THE
                SW OF GETTYSBURG.          POTTER COUNTY SHERIFFS
                                           OFFICE.

GILLESPIE

Local storm report, Jul 22, 4:24 PM CDT, 23 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
423 PM CDT THU JUL 22 1993

STORM DATA FOR JULY 22 1993

 TIME            COUNTY..LOCATION           CHARACTER OF STORM..DAMAGE
.......................................................................

 414 PM CDT     POTTER...7 MILES           FUNNEL CLOUD SPOTTED BY THE
                SW OF GETTYSBURG.          POTTER COUNTY SHERIFFS
                                           OFFICE.

GILLESPIRE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 22, 4:17 PM CDT	Tornado Warning	ABR	Potter	28 min
Jul 22, 6:04 PM CDT	Tornado Warning	ABR	Buffalo, Lyman	26 min
Jul 22, 6:04 PM CDT	Tornado Warning	ABR	Hughes	26 min
Jul 22, 6:16 PM CDT	Tornado Warning	ABR	Campbell, Walworth	29 min
Jul 22, 6:33 PM CDT	Tornado Warning	ABR	Buffalo, Lyman	27 min

Nearby

Tornado Warnings in South Dakota, 1993 Every tornado warning in 1993 Tornadoes in 1993

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.