Alert archive / South Dakota / Tornado Warnings in 2016

Tornado Warning 13, NWS Aberdeen, SD

July 16, 2016Clark County, South Dakota

NWS Aberdeen, SD issued this tornado warning at Jul 16, 2016, 8:15 PM CDT for Clark County, South Dakota. It was in force for 30 min. 3 reports 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: Jul 16, 2016, 8:15 PM CDT (01:15 UTC)
Expired: Jul 16, 2016, 8:45 PM CDT
In force: 30 min
Issued by: NWS Aberdeen, SD
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.75 in

County Clark County, SD

The radar

The Aberdeen radar (KABR), 95 km from the middle of the area, began a volume at 01:14 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
Jul 16, 8:19 PM CDT	HAIL 1.75	3 S Clark, SD	.
Jul 16, 8:20 PM CDT	HAIL 2.5	5 S Clark, SD	.
Jul 16, 8:23 PM CDT	TORNADO	7 S Clark, SD	.

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

The watch it was issued in

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

Issued	Product	Office	Lasted
Jul 16, 6:57 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 1.3 hours before the alert went out and 56 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: 687 J/kg
Mixed-layer CIN: -137 J/kg
Mixed-layer LCL: 1298 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 295 m²/s²
0-3 km storm-relative helicity: 515 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

As transmitted.

883 
WFUS53 KABR 170115
TORABR
SDC025-170145-
/O.NEW.KABR.TO.W.0013.160717T0115Z-160717T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ABERDEEN SD
815 PM CDT SAT JUL 16 2016

THE NATIONAL WEATHER SERVICE IN ABERDEEN HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN CLARK COUNTY IN NORTHEASTERN SOUTH DAKOTA...

* UNTIL 845 PM CDT
    
* AT 814 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 7 MILES EAST OF FORDHAM COLONY...OR 8 MILES
  SOUTH OF CLARK...MOVING SOUTHEAST AT 20 MPH.

  HAZARD...TORNADO AND GOLF BALL SIZE HAIL. 

  SOURCE...RADAR INDICATED ROTATION. 

  IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
           SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED.
           DAMAGE TO ROOFS...WINDOWS...AND VEHICLES WILL OCCUR. TREE
           DAMAGE IS LIKELY. 

* THIS DANGEROUS STORM WILL BE NEAR...
  MAYFIELD COLONY AROUND 840 PM CDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN
A MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4477 9785 4485 9772 4473 9751 4463 9769
TIME...MOT...LOC 0114Z 321DEG 19KT 4476 9775 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

LUECK

1 follow-up statement

230 
WWUS53 KABR 170125
SVSABR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
825 PM CDT SAT JUL 16 2016

SDC025-170145-
/O.CON.KABR.TO.W.0013.000000T0000Z-160717T0145Z/
CLARK SD-
825 PM CDT SAT JUL 16 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM CDT FOR
SOUTHEASTERN CLARK COUNTY...
    
AT 824 PM CDT...A CONFIRMED TORNADO WAS LOCATED 7 MILES NORTHWEST OF
MAYFIELD COLONY...OR 9 MILES SOUTH OF CLARK...MOVING SOUTHEAST AT 15
MPH.

HAZARD...DAMAGING TORNADO AND GOLF BALL SIZE HAIL. 

SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO 7 SOUTH OF CLARK AT
         823 PM CDT. 

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
         SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE
         TO ROOFS...WINDOWS...AND VEHICLES WILL OCCUR.  TREE DAMAGE
         IS LIKELY. 

THIS TORNADO WILL BE NEAR...
  MAYFIELD COLONY AROUND 845 PM CDT. 

LAT...LON 4477 9785 4485 9772 4473 9751 4463 9769
TIME...MOT...LOC 0124Z 309DEG 13KT 4475 9771 

TORNADO...OBSERVED
HAIL...1.75IN

$$

LUECK

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 16, 7:33 PM CDT	Severe Thunderstorm Warning	ABR	Roberts	27 min
Jul 16, 7:35 PM CDT	Severe Thunderstorm Warning	ABR	Clark	40 min
Jul 16, 7:40 PM CDT	Tornado Warning	ABR	Clark, Spink	23 min
Jul 16, 8:07 PM CDT	Severe Thunderstorm Warning	ABR	Clark, Codington, Hamlin	38 min
Jul 16, 8:25 PM CDT	Severe Thunderstorm Warning	ABR	Corson	50 min
Jul 16, 8:30 PM CDT	Tornado Warning	ABR	Clark, Hamlin	30 min
Jul 16, 8:50 PM CDT	Severe Thunderstorm Warning	ABR	Corson, Dewey	40 min
Jul 16, 8:55 PM CDT	Severe Thunderstorm Warning	ABR	Clark, Codington, Hamlin	65 min
Jul 16, 9:03 PM CDT	Severe Thunderstorm Warning	ABR	Hughes, Hyde, Stanley, Sully	42 min
Jul 16, 9:23 PM CDT	Severe Thunderstorm Warning	ABR	Deuel, Hamlin	52 min
Jul 16, 9:50 PM CDT	Severe Thunderstorm Warning	ABR	Campbell, Corson, Dewey, Edmunds, Faulk, McPherson and 2 more	40 min
Jul 16, 10:30 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Campbell, Edmunds, Faulk, McPherson, Potter and 2 more	60 min
Jul 16, 10:34 PM CDT	Severe Thunderstorm Warning	ABR	Deuel, Hamlin	15 min
Jul 16, 11:09 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Edmunds, Faulk, McPherson, Spink	66 min
Jul 16, 11:39 PM CDT	Severe Thunderstorm Warning	ABR	Deuel	21 min

Nearby

Tornado Warnings in South Dakota, 2016 Every tornado warning in 2016 Tornadoes 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.