Alert archive / South Dakota / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 33, NWS Sioux Falls, SD

June 29, 1993Hanson County, South Dakota

NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 29, 1993, 1:38 PM CDT for Hanson County, South Dakota. It was in force for 37 min.

The area

The counties it named.

The facts

Issued: Jun 29, 1993, 1:38 PM CDT (18:38 UTC)
Expired: Jun 29, 1993, 2:15 PM CDT
In force: 37 min
Issued by: NWS Sioux Falls, SD
Area: Whole counties

County Hanson County, SD

The nearest sounding before it

Aberdeen, SD (KHON), launched 12:00Z, 6.6 hours before the alert went out and 145 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: 145 J/kg
Mixed-layer CIN: -368 J/kg
Mixed-layer LCL: 812 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 237 m²/s²
0-3 km storm-relative helicity: 291 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.1

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 severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Local storm report, Jun 29, 11:07 AM CDT, 2 hours 31 minutes before

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Special weather statement, Jun 29, 11:13 AM CDT, 2 hours 25 minutes before

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Special weather statement, Jun 29, 11:15 AM CDT, 2 hours 23 minutes before

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Special weather statement, Jun 29, 11:16 AM CDT, 2 hours 22 minutes before

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Special weather statement, Jun 29, 11:36 AM CDT, 2 hours 2 minutes before

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      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
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      <p id="message2">
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Special weather statement, Jun 29, 12:19 PM CDT, 1 hour 19 minutes before

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        Please try again in a few minutes.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 29, 8:00 AM CDT	Severe Thunderstorm Warning	FSD	Mellette	45 min
Jun 29, 8:50 AM CDT	Severe Thunderstorm Warning	FSD	Mellette	40 min
Jun 29, 8:57 AM CDT	Severe Thunderstorm Warning	FSD	Mellette	33 min
Jun 29, 9:30 AM CDT	Severe Thunderstorm Warning	FSD	Mellette	45 min
Jun 29, 10:19 AM CDT	Severe Thunderstorm Warning	FSD	Tripp	41 min
Jun 29, 10:57 AM CDT	Severe Thunderstorm Warning	FSD	Tripp	24 min
Jun 29, 11:46 AM CDT	Severe Thunderstorm Warning	FSD	Brule	44 min
Jun 29, 1:07 PM CDT	Severe Thunderstorm Warning	FSD	McCook	38 min
Jun 29, 1:58 PM CDT	Severe Thunderstorm Warning	FSD	Lake	32 min
Jun 29, 2:10 PM CDT	Severe Thunderstorm Warning	FSD	McCook	50 min
Jun 29, 2:38 PM CDT	Severe Thunderstorm Warning	FSD	Minnehaha, Moody	37 min
Jun 29, 3:30 PM CDT	Flash Flood Warning	FSD	McCook, Minnehaha	3 hr
Jun 29, 3:49 PM CDT	Flash Flood Warning	FSD	Moody	3 hr
Jun 29, 4:32 PM CDT	Tornado Warning	FSD	Tripp	28 min
Jun 29, 4:57 PM CDT	Tornado Warning	FSD	Tripp	33 min
Jun 29, 6:30 PM CDT	Flash Flood Warning	FSD	Minnehaha, Moody	3 hr
Jun 29, 6:30 PM CDT	Flash Flood Warning	FSD	McCook	3 hr
Jun 29, 6:41 PM CDT	Severe Thunderstorm Warning	FSD	Charles Mix	28 min
Jun 29, 2:33 PM CDT	Severe Thunderstorm Warning	FSD	Rock	27 min
Jun 29, 3:04 PM CDT	Severe Thunderstorm Warning	FSD	Pipestone	26 min
Jun 29, 3:08 PM CDT	Severe Thunderstorm Warning	FSD	Nobles	52 min
Jun 29, 3:49 PM CDT	Flash Flood Warning	FSD	Murray, Nobles, Pipestone, Rock	3 hr
Jun 29, 4:07 PM CDT	Severe Thunderstorm Warning	FSD	Nobles, Rock	38 min
Jun 29, 6:30 PM CDT	Flash Flood Warning	FSD	Nobles	3 hr
Jun 29, 6:30 PM CDT	Flash Flood Warning	FSD	Murray	3 hr
Jun 29, 2:51 PM CDT	Severe Thunderstorm Warning	FSD	Lyon	39 min
Jun 29, 4:25 PM CDT	Flash Flood Warning	FSD	Lyon, Osceola	2 hr
Jun 29, 4:40 PM CDT	Flash Flood Warning	FSD	Lyon, Osceola	2 hr

Nearby

Severe Thunderstorm Warnings in South Dakota, 1993 Every severe thunderstorm warning 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.