Alert archive / South Dakota / Tornado Warnings in 2019

Tornado Warning 6, NWS Rapid City, SD

June 30, 2019Tripp County, South Dakota

NWS Rapid City, SD issued this tornado warning at Jun 30, 2019, 5:39 PM CDT for Tripp County, South Dakota. It was in force for 21 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: Jun 30, 2019, 5:39 PM CDT (22:39 UTC)
Expired: Jun 30, 2019, 6:00 PM CDT
In force: 21 min
Issued by: NWS Rapid City, SD
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

County Tripp County, SD

The radar

The North Platte radar (KLNX), 164 km from the middle of the area, began a volume at 22:41 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 30, 5:19 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 10.7 hours before the alert went out and 209 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: 1889 J/kg
Mixed-layer CIN: -336 J/kg
Mixed-layer LCL: 1008 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: -169 m²/s²
0-3 km storm-relative helicity: -67 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -1.1

Open this sounding in Storm Lab

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.

NWS Rapid City, SD wrote its last area forecast discussion before this tornado warning went out at Jun 30, 4:05 PM CDT, 1 hour 34 minutes earlier.

Area forecast discussion, Jun 30, 4:05 PM CDT, 1 hour 34 minutes before

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Hazardous weather outlook, Jun 30, 2:18 AM CDT, 15 hours 21 minutes before

Hazardous Weather Outlook
National Weather Service Rapid City SD
118 AM MDT Sun Jun 30 2019

SDZ001-002-012>014-073-WYZ071-011300-
Harding-Perkins-Butte-Northern Meade Co Plains-Ziebach-
Southern Meade Co Plains-Northeastern Crook-
118 AM MDT Sun Jun 30 2019

This Hazardous Weather Outlook is for portions of northwestern
South Dakota...and northeast Wyoming.

.DAY ONE...Today and Tonight

Showers and thunderstorms are likely this afternoon and tonight.
There is a Marginal Risk of severe thunderstorms. The main severe
weather threats will be large hail and damaging wind gusts.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

There is a chance of showers and thunderstorms each day. Severe
thunderstorms are possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today.

&&

Stay tuned to NOAA weather radio for further updates...or check
our web site at weather.gov/rapidcity

WYZ054-055-058-011300-
Northern Campbell-Southern Campbell-Weston-
118 AM MDT Sun Jun 30 2019

This Hazardous Weather Outlook is for portions of northeast
Wyoming.

.DAY ONE...Today and Tonight

Showers and thunderstorms are likely today and tonight. There is
a Slight Risk of severe thunderstorms. While the main severe
weather threats will be large hail and damaging wind gusts, an
isolated tornado is also possible.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

There is a chance of showers and thunderstorms each day. Severe
thunderstorms are possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed today.

&&

Stay tuned to NOAA weather radio for further updates...or check
our web site at weather.gov/rapidcity

SDZ024>032-041>044-046-047-049-072-074-WYZ056-057-011300-
Northern Black Hills-Northern Foot Hills-Rapid City-
Southern Foot Hills-Central Black Hills-Southern Black Hills-
Custer Co Plains-Pennington Co Plains-Haakon-Fall River-
Oglala Lakota-Jackson-Bennett-Mellette-Todd-Tripp-
Sturgis/Piedmont Foot Hills-Hermosa Foot Hills-Western Crook-
Wyoming Black Hills-
118 AM MDT Sun Jun 30 2019 /218 AM CDT Sun Jun 30 2019/

This Hazardous Weather Outlook is for portions of northwestern
South Dakota...south central South Dakota...southwestern South
Dakota...the Black Hills of South Dakota...northeast Wyoming...
and the Black Hills of Wyoming.

.DAY ONE...Today and Tonight

Showers and thunderstorms are likely this afternoon and tonight. There
is a Slight Risk of severe thunderstorms. The main severe weather
threats will be large hail and damaging wind gusts.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

There is a chance of showers and thunderstorms each day. Severe
thunderstorms are possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today.

&&

Stay tuned to NOAA weather radio for further updates...or check
our web site at weather.gov/rapidcity

In the hours before

Special weather statement, Jun 30, 3:20 PM CDT, 2 hours 19 minutes before

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Special weather statement, Jun 30, 3:22 PM CDT, 2 hours 17 minutes before

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Special weather statement, Jun 30, 4:30 PM CDT, 1 hour 9 minutes before

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Local storm report, Jun 30, 5:13 PM CDT, 26 minutes before

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Local storm report, Jun 30, 5:23 PM CDT, 16 minutes before

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Local storm report, Jun 30, 5:36 PM CDT, 3 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
Jun 29, 7:19 PM CDT	Special Weather Statement	UNR	Bennett	41 min
Jun 29, 7:39 PM CDT	Severe Thunderstorm Warning	UNR	Fall River	24 min
Jun 29, 10:41 PM CDT	Special Weather Statement	UNR	Todd	49 min
Jun 30, 12:31 PM CDT	Special Weather Statement	UNR	Lawrence	29 min
Jun 30, 1:10 PM CDT	Severe Thunderstorm Warning	UNR	Lawrence, Pennington	46 min
Jun 30, 1:57 PM CDT	Special Weather Statement	UNR	Lawrence	33 min
Jun 30, 2:38 PM CDT	Special Weather Statement	UNR	Lawrence	22 min
Jun 30, 3:20 PM CDT	Special Weather Statement	UNR	Custer	25 min
Jun 30, 3:22 PM CDT	Special Weather Statement	UNR	Lawrence	23 min
Jun 30, 3:36 PM CDT	Severe Thunderstorm Warning	UNR	Meade, Pennington	17 min
Jun 30, 4:01 PM CDT	Severe Thunderstorm Warning	UNR	Custer	26 min
Jun 30, 4:30 PM CDT	Special Weather Statement	UNR	Pennington	30 min
Jun 30, 4:41 PM CDT	Severe Thunderstorm Warning	UNR	Jackson, Oglala Lakota, Pennington	64 min
Jun 30, 5:22 PM CDT	Severe Thunderstorm Warning	UNR	Jackson, Pennington	53 min
Jun 30, 6:14 PM CDT	Severe Thunderstorm Warning	UNR	Jackson, Mellette	76 min
Jun 30, 6:21 PM CDT	Severe Thunderstorm Warning	UNR	Tripp	24 min
Jun 30, 6:54 PM CDT	Severe Thunderstorm Warning	UNR	Mellette, Todd	50 min
Jun 30, 11:23 AM CDT	Severe Thunderstorm Warning	UNR	Campbell	36 min
Jun 30, 12:02 PM CDT	Special Weather Statement	UNR	Weston	28 min
Jun 30, 12:22 PM CDT	Severe Thunderstorm Warning	UNR	Weston	33 min
Jun 30, 12:45 PM CDT	Special Weather Statement	UNR	Weston	15 min
Jun 30, 12:56 PM CDT	Special Weather Statement	UNR	Weston	34 min
Jun 30, 1:21 PM CDT	Severe Thunderstorm Warning	UNR	Weston	32 min
Jun 30, 1:59 PM CDT	Flash Flood Warning	UNR	Crook, Weston	3 hr

Nearby

Tornado Warnings in South Dakota, 2019 Every tornado warning in 2019 Tornadoes in 2019

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.