Alert archive / South Dakota / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 30, NWS Rapid City, SD

May 25, 2016Haakon County, South Dakota

NWS Rapid City, SD issued this severe thunderstorm warning at May 25, 2016, 2:32 PM MDT for Haakon County, South Dakota. It was in force for 44 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: May 25, 2016, 2:32 PM MDT (20:32 UTC)
Expired: May 25, 2016, 3:16 PM MDT
In force: 44 min
Issued by: NWS Rapid City, SD
Area: Storm-based polygon
Hail: 2.75 in
Wind: 60.0 mph

County Haakon County, SD

The radar

The Rapid City radar (KUDX), 105 km from the middle of the area, began a volume at 20:34 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 nearest sounding before it

Rapid City, SD (KRAP), launched 12:00Z, 8.5 hours before the alert went out and 110 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 894 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 95 m²/s²
0-3 km storm-relative helicity: 142 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 May 25, 2:02 PM MDT, 30 minutes earlier.

Area forecast discussion, May 25, 2:02 PM MDT, 30 minutes before

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Hazardous weather outlook, May 25, 3:56 AM MDT, 10 hours 36 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RAPID CITY SD
356 AM MDT WED MAY 25 2016

SDZ001-002-012>014-024>032-041>043-072>074-WYZ054>058-071-261300-
HARDING-PERKINS-BUTTE-NORTHERN MEADE CO PLAINS-ZIEBACH-
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-STURGIS/PIEDMONT FOOT HILLS-
SOUTHERN MEADE CO PLAINS-HERMOSA FOOT HILLS-NORTHERN CAMPBELL-
SOUTHERN CAMPBELL-WESTERN CROOK-WYOMING BLACK HILLS-WESTON-
NORTHEASTERN CROOK-
356 AM MDT WED MAY 25 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWESTERN
SOUTH DAKOTA...SOUTHWESTERN SOUTH DAKOTA...THE BLACK HILLS OF
SOUTH DAKOTA...AND NORTHEAST WYOMING.

.DAY ONE...TODAY AND TONIGHT

SCATTERED THUNDERSTORMS ARE EXPECTED THIS AFTERNOON INTO TONIGHT.
SEVERE THUNDERSTORMS ARE NOT EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THERE IS A DAILY CHANCE OF THUNDERSTORMS FROM THURSDAY THROUGH
TUESDAY. WIDESPREAD SEVERE THUNDERSTORMS ARE NOT EXPECTED AT THIS
TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY.

&&

STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES...
OR CHECK OUR WEB SITE AT WEATHER.GOV/RAPIDCITY

SDZ044-046-047-049-261300-
BENNETT-MELLETTE-TODD-TRIPP-
356 AM MDT WED MAY 25 2016 /456 AM CDT WED MAY 25 2016/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL
SOUTH DAKOTA...AND SOUTHWESTERN SOUTH DAKOTA.

.DAY ONE...TODAY AND TONIGHT

SCATTERED THUNDERSTORMS ARE EXPECTED THIS AFTERNOON INTO TONIGHT.
THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS WITH HAIL AND
STRONG WINDS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THERE IS A DAILY CHANCE OF THUNDERSTORMS FROM THURSDAY THROUGH
TUESDAY. WIDESPREAD SEVERE THUNDERSTORMS ARE NOT EXPECTED AT THIS
TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY.

&&

STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES...
OR CHECK OUR WEB SITE AT WEATHER.GOV/RAPIDCITY

In the hours before

Local storm report, May 25, 1:32 PM MDT, 1 hour before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
132 PM MDT WED MAY 25 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1200 PM     HAIL             7 N DOWNTOWN RAPID CITY 44.18N 103.23W
05/25/2016  E0.50 INCH       MEADE              SD   PUBLIC

            REPORT VIA FACEBOOK

0101 PM     HAIL             1 SE WASTA              44.06N 102.43W
05/25/2016  E0.50 INCH       PENNINGTON         SD   OTHER FEDERAL

            HAIL RANGED FROM PEA TO MARBLE SIZE

&&

MCKEMY

Special weather statement, May 25, 1:38 PM MDT, 54 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RAPID CITY SD
138 PM MDT WED MAY 25 2016

SDZ026-031-072-073-252000-
PENNINGTON CO PLAINS SD-SOUTHERN MEADE CO PLAINS SD-
STURGIS/PIEDMONT FOOT HILLS SD-RAPID CITY SD-
138 PM MDT WED MAY 25 2016

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN MEADE AND
NORTHWESTERN PENNINGTON COUNTIES UNTIL 200 PM MDT...

AT 138 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
ELLSWORTH AIR FORCE BASE...OR NEAR RAPID CITY...MOVING EAST AT 20 MPH.

DIME SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
ELLSWORTH AIR FORCE BASE AND BOX ELDER.

THIS INCLUDES INTERSTATE 90 IN SOUTH DAKOTA BETWEEN MILE MARKERS 66
AND 68.

LAT...LON 4414 10326 4426 10327 4428 10303 4411 10302
TIME...MOT...LOC 1938Z 269DEG 19KT 4418 10320

MCKEMY

Local storm report, May 25, 1:48 PM MDT, 44 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
148 PM MDT WED MAY 25 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0116 PM     HAIL             6 NW WALL               44.05N 102.32W
05/25/2016  E0.25 INCH       PENNINGTON         SD   DEPT OF HIGHWAYS

            HAIL 5 INCHES DEEP

0129 PM     HAIL             1 N WALL                44.01N 102.24W
05/25/2016  E1.00 INCH       PENNINGTON         SD   DEPT OF HIGHWAYS

&&

POJORLIE

Special weather statement, May 25, 1:55 PM MDT, 37 minutes before

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Local storm report, May 25, 1:59 PM MDT, 33 minutes before

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Local storm report, May 25, 2:13 PM MDT, 19 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
May 24, 6:25 PM MDT	Severe Thunderstorm Warning	UNR	Bennett, Oglala Lakota	54 min
May 24, 6:36 PM MDT	Special Weather Statement	UNR	Jones	24 min
May 24, 6:48 PM MDT	Severe Thunderstorm Warning	UNR	Haakon, Jackson	39 min
May 24, 7:31 PM MDT	Severe Thunderstorm Warning	UNR	Jackson, Mellette	59 min
May 24, 8:27 PM MDT	Severe Thunderstorm Warning	UNR	Haakon, Jackson, Mellette	33 min
May 24, 10:19 PM MDT	Special Weather Statement	UNR	Todd	26 min
May 25, 12:53 PM MDT	Special Weather Statement	UNR	Pennington	22 min
May 25, 1:03 PM MDT	Severe Thunderstorm Warning	UNR	Haakon, Jackson, Pennington	57 min
May 25, 1:38 PM MDT	Special Weather Statement	UNR	Pennington	22 min
May 25, 1:49 PM MDT	Severe Thunderstorm Warning	UNR	Haakon, Jackson, Pennington	56 min
May 25, 1:55 PM MDT	Special Weather Statement	UNR	Pennington	35 min
May 25, 3:46 PM MDT	Special Weather Statement	UNR	Todd	29 min
May 25, 3:53 PM MDT	Special Weather Statement	UNR	Tripp	37 min
May 25, 4:39 PM MDT	Special Weather Statement	UNR	Tripp	36 min
May 25, 5:19 PM MDT	Special Weather Statement	UNR	Tripp	26 min
May 24, 8:04 PM MDT	Severe Thunderstorm Warning	UNR	Campbell	45 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.