Alert archive / South Dakota / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 21, NWS Rapid City, SD

May 22, 20164 counties in South Dakota

NWS Rapid City, SD issued this severe thunderstorm warning at May 22, 2016, 8:28 PM MDT for 4 counties in South Dakota. It was in force for 62 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: May 22, 2016, 8:28 PM MDT (02:28 UTC)
Expired: May 22, 2016, 9:30 PM MDT
In force: 62 min
Issued by: NWS Rapid City, SD
Area: Storm-based polygon
Hail: 0.75 in
Wind: 70.0 mph

Counties Bennett County, SD, Jackson County, SD, Mellette County, SD, Todd County, SD

The radar

The North Platte radar (KLNX), 173 km from the middle of the area, began a volume at 02:29 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.

What was reported inside it

Time	Report	Where	Remark
May 22, 8:38 PM MDT	TSTM WND GST 70	1 Se Vetal, SD

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 10 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 22, 2:20 PM MDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Rapid City, SD (KRAP), launched 00:00Z, 2.5 hours before the alert went out and 178 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: 3328 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: -28 m²/s²
0-3 km storm-relative helicity: 104 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

944 
WUUS53 KUNR 230228
SVRUNR
SDC007-071-095-121-230330-
/O.NEW.KUNR.SV.W.0021.160523T0228Z-160523T0330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE RAPID CITY SD
828 PM MDT SUN MAY 22 2016

THE NATIONAL WEATHER SERVICE IN RAPID CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  TODD COUNTY IN SOUTH CENTRAL SOUTH DAKOTA...
  EASTERN BENNETT COUNTY IN SOUTHWESTERN SOUTH DAKOTA...
  MELLETTE COUNTY IN SOUTH CENTRAL SOUTH DAKOTA...
  SOUTHEASTERN JACKSON COUNTY IN SOUTHWESTERN SOUTH DAKOTA...

* UNTIL 930 PM MDT/1030 PM CDT/

* AT 828 PM MDT/928 PM CDT/...SEVERE THUNDERSTORMS WERE LOCATED ALONG
  A LINE EXTENDING FROM 8 MILES NORTHWEST OF VETAL TO NEAR HARRINGTON
  TO NEAR NENZEL...MOVING NORTHEAST AT 65 MPH.

  HAZARD...70 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT CONSIDERABLE TREE DAMAGE. DAMAGE IS LIKELY TO 
           MOBILE HOMES...ROOFS...AND OUTBUILDINGS. 

* LOCATIONS IMPACTED INCLUDE...
  MISSION...WHITE RIVER...ROSEBUD...SAINT FRANCIS...PARMELEE...OKREEK...
  SPRING CREEK...NORRIS...WOOD...CEDAR BUTTE...MOSHER...HARRINGTON AND
  VETAL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM MDT/1000 PM CDT/ FOR
SOUTHWESTERN SOUTH DAKOTA.

LAT...LON 4307 10138 4326 10163 4379 10088 4376 10081
      4372 10079 4374 10075 4371 10072 4377 10058
      4372 10047 4374 10036 4370 10029 4370 10023
      4337 10022 4299 10104 4300 10133
TIME...MOT...LOC 0228Z 233DEG 56KT 4332 10146 4318 10119 4301 10111 

HAIL...<.75IN
WIND...70MPH
 
$$

HELGESON

3 follow-up statements

764 
WWUS53 KUNR 230249
SVSUNR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RAPID CITY SD
849 PM MDT SUN MAY 22 2016

SDC007-071-095-121-230330-
/O.CON.KUNR.SV.W.0021.000000T0000Z-160523T0330Z/
TODD SD-BENNETT SD-MELLETTE SD-JACKSON SD-
849 PM MDT SUN MAY 22 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM
MDT/1030 PM CDT/ FOR CENTRAL TODD...NORTHEASTERN BENNETT...MELLETTE
AND SOUTHEASTERN JACKSON COUNTIES...

AT 848 PM MDT/948 PM CDT/...SEVERE THUNDERSTORMS WERE LOCATED ALONG A
LINE EXTENDING FROM NEAR NORRIS TO NEAR PARMELEE TO NEAR SAINT
FRANCIS...MOVING NORTHEAST AT 50 MPH.

HAZARD...70 MPH WIND GUSTS. 

SOURCE...TRAINED WEATHER SPOTTERS. AT 835 PM MDT 70 MPH
         WIND GUSTS WERE REPORTED 1 MILE EAST OF VETAL.

IMPACT...EXPECT CONSIDERABLE TREE DAMAGE. DAMAGE IS LIKELY TO MOBILE 
         HOMES...ROOFS...AND OUTBUILDINGS. 

LOCATIONS IMPACTED INCLUDE...
MISSION...WHITE RIVER...ROSEBUD...SAINT FRANCIS...PARMELEE...OKREEK...
SPRING CREEK...NORRIS...WOOD...CEDAR BUTTE AND MOSHER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM MDT/1000 PM CDT/ FOR
SOUTHWESTERN SOUTH DAKOTA.

LAT...LON 4302 10097 4317 10123 4342 10140 4379 10088
      4376 10081 4372 10079 4374 10075 4371 10072
      4377 10058 4372 10047 4374 10036 4370 10029
      4370 10023 4337 10022
TIME...MOT...LOC 0248Z 231DEG 41KT 4342 10129 4328 10102 4311 10094 

HAIL...<.75IN
WIND...70MPH
 
$$

HELGESON

952 
WWUS53 KUNR 230302
SVSUNR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RAPID CITY SD
902 PM MDT SUN MAY 22 2016

SDC007-230311-
/O.CAN.KUNR.SV.W.0021.000000T0000Z-160523T0330Z/
BENNETT SD-
902 PM MDT SUN MAY 22 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN BENNETT COUNTY IS
CANCELLED...

THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE WARNED
AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM MDT/300 AM
CDT/ FOR SOUTHWESTERN SOUTH DAKOTA.

LAT...LON 4330 10115 4339 10123 4346 10135 4379 10088
      4372 10079 4374 10075 4371 10072 4371 10068
      4377 10058 4372 10047 4374 10036 4370 10029
      4370 10023 4343 10023 4317 10093
TIME...MOT...LOC 0301Z 228DEG 44KT 4356 10124 4342 10097 4325 10089 

$$

SDC071-095-121-230330-
/O.CON.KUNR.SV.W.0021.000000T0000Z-160523T0330Z/
TODD SD-MELLETTE SD-JACKSON SD-
902 PM MDT SUN MAY 22 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM
MDT/1030 PM CDT/ FOR NORTHWESTERN TODD...MELLETTE AND SOUTHEASTERN
JACKSON COUNTIES...

AT 901 PM MDT/1001 PM CDT/...SEVERE THUNDERSTORMS WERE LOCATED ALONG A
LINE EXTENDING FROM 6 MILES NORTH OF NORRIS TO 7 MILES NORTHEAST OF
PARMELEE TO ROSEBUD...MOVING NORTHEAST AT 50 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
MISSION...WHITE RIVER...ROSEBUD...PARMELEE...NORRIS...WOOD...CEDAR BUTTE
AND MOSHER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4330 10115 4339 10123 4346 10135 4379 10088
      4372 10079 4374 10075 4371 10072 4371 10068
      4377 10058 4372 10047 4374 10036 4370 10029
      4370 10023 4343 10023 4317 10093
TIME...MOT...LOC 0301Z 228DEG 44KT 4356 10124 4342 10097 4325 10089 

HAIL...<.75IN
WIND...60MPH
 
$$

HELGESON

101 
WWUS53 KUNR 230324
SVSUNR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RAPID CITY SD
924 PM MDT SUN MAY 22 2016

SDC071-095-121-230334-
/O.EXP.KUNR.SV.W.0021.000000T0000Z-160523T0330Z/
TODD SD-MELLETTE SD-JACKSON SD-
924 PM MDT SUN MAY 22 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN TODD...MELLETTE
AND SOUTHEASTERN JACKSON COUNTIES WILL EXPIRE AT 930 PM MDT/1030 PM
CDT/...
            
THE STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.  HOWEVER SMALL HAIL
AND GUSTY WINDS ARE STILL POSSIBLE WITH THESE THUNDERSTORMS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM MDT/300 AM
CDT/ FOR SOUTHWESTERN SOUTH DAKOTA.

LAT...LON 4330 10115 4339 10123 4346 10135 4379 10088
      4372 10079 4374 10075 4371 10072 4371 10068
      4377 10058 4372 10047 4374 10036 4370 10029
      4370 10023 4343 10023 4317 10093
TIME...MOT...LOC 0323Z 233DEG 56KT 4356 10124 4342 10097 4325 10089 

$$

HELGESON

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 22, 4:55 PM MDT, 3 hours 33 minutes earlier.

Area forecast discussion, May 22, 4:55 PM MDT, 3 hours 33 minutes before

Area Forecast Discussion For Western SD and Northeastern WY
National Weather Service Rapid City SD
455 PM MDT SUN MAY 22 2016

.SHORT TERM...(This Evening Through Monday Night)
Issued at 223 PM MDT Sun May 22 2016

Upper low spins over southern Alberta, with a 100+ kt
jet pushing into the Northern Plains. Cold front has stalled over
western SD and isn't progged to leave the CWA until around 06Z.
Skies are mostly sunny, and cumulus are developing over the Black
Hills.

Shortwave associated with upper low will push into the region this
afternoon and evening. Latest runs of hi-res convective models show
showers and thunderstorms initiating across northeastern WY and far
western SD, under best upper divergence with excellent 0-6 km shear
of 60-70 kts. However, strength of these storms will be limited by
lack of CAPE there. As upper energy shifts northeastward,
thunderstorms are expected to develop and strengthen along the
frontal boundary this evening. Severe thunderstorms are expected,
with 2000-3000 J/kg MLCAPE and 0-6km shear of 30-50 kts. Large hail
and strong winds are possible, likely becoming more of a wind event
later as the system forms a line and possibly bows out. Heavy rain
is possible as well, but with storm motion at 30-40 kts, storms
should be moving pretty quickly and not lingering over an area for a
while. There is a potential for tornadoes, as 0-1 km shear is 30-40
kts, 0-1 km helicity is near 300 m2/s2, and LCL heights dip well
below 1200 m across south central SD. Storms will transition
eastward tonight and move out of the CWA by morning.

Some lingering moisture and instability, along with weak upper
energy, may result in a few showers/storms over the Hills and
northwestern SD Monday into Monday evening. Otherwise mainly dry
conditions are expected for Monday, with highs generally in the 70s.

.LONG TERM...(Tuesday Through Sunday)
Issued at 223 PM MDT Sun May 22 2016

Slow-moving upper trough with periodic shortwaves will
continue to affect the region through much of this week. Weather
will be unsettled with daily chances for showers and thunderstorms
into next weekend. Temperatures will be near seasonal averages.

&&

.AVIATION...(For the 00Z TAFS Through 00Z Monday Evening)
Issued At 452 PM MDT Sun May 22 2016

Scattered to numerous showers and thunderstorms will develop over
parts of northeastern Wyoming and western South Dakota early this
afternoon pushing east later in the evening. strong to severe
thunderstorms will occur in a n/s oriented band across central SD
this evening. Outside of the storms VFR conditions are expected.
In and near storms, IFR ceilings and visibilities are expected
along with the potential for strong gusty winds and hail.

&&

.UNR Watches/Warnings/Advisories...
SD...None.
WY...None.
&&

SHORT TERM...Pojorlie
LONG TERM...Pojorlie
AVIATION...10

Hazardous weather outlook, May 22, 7:21 AM MDT, 13 hours 7 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RAPID CITY SD
721 AM MDT SUN MAY 22 2016

WYZ054>058-071-231300-
NORTHERN CAMPBELL-SOUTHERN CAMPBELL-WESTERN CROOK-
WYOMING BLACK HILLS-WESTON-NORTHEASTERN CROOK-
721 AM MDT SUN MAY 22 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST
WYOMING.

.DAY ONE...TODAY AND TONIGHT

THERE IS A CHANCE OF THUNDERSTORMS TODAY. SEVERE THUNDERSTORMS ARE
NOT EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

THERE IS A DAILY CHANCE OF THUNDERSTORMS FROM TUESDAY THROUGH
SATURDAY. 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

SDZ001-002-012-013-024>031-041-072>074-231300-
HARDING-PERKINS-BUTTE-NORTHERN MEADE CO PLAINS-
NORTHERN BLACK HILLS-NORTHERN FOOT HILLS-RAPID CITY-
SOUTHERN FOOT HILLS-CENTRAL BLACK HILLS-SOUTHERN BLACK HILLS-
CUSTER CO PLAINS-PENNINGTON CO PLAINS-FALL RIVER-
STURGIS/PIEDMONT FOOT HILLS-SOUTHERN MEADE CO PLAINS-
HERMOSA FOOT HILLS-
721 AM MDT SUN MAY 22 2016

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

.DAY ONE...TODAY AND TONIGHT

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

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

THERE IS A DAILY CHANCE OF THUNDERSTORMS FROM TUESDAY THROUGH
SATURDAY. 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

SDZ014-032-042>044-046-047-049-231300-
ZIEBACH-HAAKON-OGLALA LAKOTA-JACKSON-BENNETT-MELLETTE-TODD-TRIPP-
721 AM MDT SUN MAY 22 2016 /821 AM CDT SUN MAY 22 2016/

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

.DAY ONE...TODAY AND TONIGHT

SCATTERED THUNDERSTORMS ARE EXPECTED THIS AFTERNOON INTO TONIGHT.
THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS WITH LARGE HAIL, DAMAGING
WINDS, AND LOCALLY HEAVY RAIN. THERE IS ALSO THE POTENTIAL FOR
TORNADO DEVELOPMENT.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

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

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY 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 22, 5:26 PM MDT, 3 hours 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
526 PM MDT SUN MAY 22 2016

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

0520 PM     HAIL             18 SSE MISSION          43.07N 100.52W
05/22/2016  E1.00 INCH       TODD               SD   PUBLIC

&&

ME

Local storm report, May 22, 5:52 PM MDT, 2 hours 36 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
552 PM MDT SUN MAY 22 2016

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

0535 PM     TORNADO          3 NE LITTLEBURG         43.08N 100.41W
05/22/2016                   TODD               SD   PUBLIC

&&

ME

Local storm report, May 22, 6:11 PM MDT, 2 hours 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
611 PM MDT SUN MAY 22 2016

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

0610 PM     TSTM WND GST     9 ESE HIDDEN TIMBER     43.18N 100.26W
05/22/2016  E60 MPH          TODD               SD   PUBLIC

            SEES ROTATION IN CLOUDS

&&

ME

Local storm report, May 22, 6:52 PM MDT, 1 hour 36 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
652 PM MDT SUN MAY 22 2016

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

0645 PM     TSTM WND GST     6 S KEYAPAHA            43.01N 100.13W
05/22/2016  E60 MPH          TRIPP              SD   PUBLIC

            SOME ROOF DAMAGE TO FARM BUILDINGS

&&

ME

Local storm report, May 22, 7:53 PM MDT, 35 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
753 PM MDT SUN MAY 22 2016

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

0705 PM     TORNADO          10 SW WINNER            43.27N 100.00W
05/22/2016                   TRIPP              SD   LAW ENFORCEMENT

            REPORTS OF BUILDING DAMAGE POWER LINES DOWN ROOF RIPPED
            OFF

&&

ME

Local storm report, May 22, 7:54 PM MDT, 34 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
754 PM MDT SUN MAY 22 2016

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

0745 PM     NON-TSTM WND GST 4 S DOWNTOWN RAPID CITY 44.02N 103.24W
05/22/2016  M60 MPH          PENNINGTON         SD   NWS EMPLOYEE

0745 PM     HIGH SUST WINDS  4 S DOWNTOWN RAPID CITY 44.02N 103.24W
05/22/2016  M42 MPH          PENNINGTON         SD   NWS EMPLOYEE

&&

ME

The office that day

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

Issued	Product	Office	Counties	Lasted
May 22, 6:13 PM MDT	Tornado Warning	UNR	Todd, Tripp	16 min
May 22, 6:16 PM MDT	Severe Thunderstorm Warning	UNR	Todd, Tripp	59 min
May 22, 7:13 PM MDT	Flash Flood Warning	UNR	Todd, Tripp	3 hr
May 22, 7:28 PM MDT	Severe Thunderstorm Warning	UNR	Tripp	62 min
May 22, 8:25 PM MDT	Severe Thunderstorm Warning	UNR	Tripp	49 min
May 22, 9:26 PM MDT	Special Weather Statement	UNR	Mellette	34 min
May 22, 10:05 PM MDT	Areal Flood Warning	UNR	Todd, Tripp	12 hr

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.