Alert archive / South Dakota / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 384, NWS Rapid City, SD

October 3, 2016Oglala Lakota County, South Dakota

NWS Rapid City, SD issued this severe thunderstorm warning at Oct 3, 2016, 3:44 PM MDT for Oglala Lakota County, South Dakota. It was in force for 31 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Oct 3, 2016, 3:44 PM MDT (21:44 UTC)
Expired: Oct 3, 2016, 4:15 PM MDT
In force: 31 min
Issued by: NWS Rapid City, SD
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Oglala Lakota County, SD

The radar

The Rapid City radar (KUDX), 91 km from the middle of the area, began a volume at 21:47 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
Oct 3, 1:04 PM MDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Rapid City, SD (KRAP), launched 12:00Z, 9.7 hours before the alert went out and 86 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: 1 J/kg
Mixed-layer CIN: -168 J/kg
Mixed-layer LCL: 1865 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 97 m²/s²
0-3 km storm-relative helicity: 244 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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.

NWS Rapid City, SD wrote its last area forecast discussion before this severe thunderstorm warning went out at Oct 3, 2:17 PM MDT, 1 hour 27 minutes earlier.

Area forecast discussion, Oct 3, 2:17 PM MDT, 1 hour 27 minutes before

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Hazardous weather outlook, Oct 3, 1:09 PM MDT, 2 hours 35 minutes before

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In the hours before

Special weather statement, Oct 3, 1:31 PM MDT, 2 hours 13 minutes before

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Special weather statement, Oct 3, 2:02 PM MDT, 1 hour 42 minutes before

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Special weather statement, Oct 3, 2:07 PM MDT, 1 hour 37 minutes before

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Special weather statement, Oct 3, 2:49 PM MDT, 55 minutes before

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Local storm report, Oct 3, 3:32 PM MDT, 12 minutes before

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Local storm report, Oct 3, 3:40 PM MDT, 4 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 3, 2:45 AM MDT	Wind Advisory	UNR	Mellette, Todd, Tripp	15 hr
Oct 3, 6:27 AM MDT	Special Weather Statement	UNR	Meade	33 min
Oct 3, 6:54 AM MDT	Special Weather Statement	UNR	Butte	66 min
Oct 3, 1:31 PM MDT	Special Weather Statement	UNR	Fall River	29 min
Oct 3, 2:02 PM MDT	Special Weather Statement	UNR	Fall River	43 min
Oct 3, 2:07 PM MDT	Special Weather Statement	UNR	Butte	23 min
Oct 3, 2:49 PM MDT	Special Weather Statement	UNR	Custer	26 min
Oct 3, 3:03 PM MDT	Severe Thunderstorm Warning	UNR	Fall River, Oglala Lakota	42 min
Oct 3, 4:18 PM MDT	Special Weather Statement	UNR	Oglala Lakota	27 min
Oct 3, 4:39 PM MDT	Special Weather Statement	UNR	Haakon	36 min
Oct 3, 4:50 PM MDT	Severe Thunderstorm Warning	UNR	Haakon, Jackson, Pennington	40 min
Oct 3, 4:53 PM MDT	Severe Thunderstorm Warning	UNR	Haakon, Ziebach	52 min
Oct 3, 4:59 PM MDT	Severe Thunderstorm Warning	UNR	Bennett	46 min
Oct 3, 5:09 PM MDT	Severe Thunderstorm Warning	UNR	Haakon	51 min
Oct 3, 5:33 PM MDT	Severe Thunderstorm Warning	UNR	Haakon, Ziebach	57 min
Oct 3, 5:34 PM MDT	Severe Thunderstorm Warning	UNR	Bennett	43 min
Oct 3, 5:40 PM MDT	Severe Thunderstorm Warning	UNR	Jackson, Mellette, Todd	53 min
Oct 2, 7:00 PM MDT	Special Weather Statement	UNR	Campbell	45 min
Oct 2, 7:07 PM MDT	Severe Thunderstorm Warning	UNR	Campbell	53 min
Oct 2, 7:55 PM MDT	Severe Thunderstorm Warning	UNR	Campbell	65 min
Oct 3, 1:01 PM MDT	Special Weather Statement	UNR	Weston	29 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 2016 Every severe thunderstorm warning in 2016

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.