Alert archive / South Dakota / Tornado Warnings in 2016

Tornado Warning 12, NWS Aberdeen, SD

July 16, 2016Clark County, Spink County, South Dakota

NWS Aberdeen, SD issued this tornado warning at Jul 16, 2016, 7:40 PM CDT for Clark County, Spink County, South Dakota. It was in force for 23 min. 5 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, 7:40 PM CDT (00:40 UTC)
Expired: Jul 16, 2016, 8:03 PM CDT
In force: 23 min
Issued by: NWS Aberdeen, SD
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.75 in

Counties Clark County, SD, Spink County, SD

The radar

The Aberdeen radar (KABR), 77 km from the middle of the area, began a volume at 00:44 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, 7:40 PM CDT	HAIL 1	2 Ssw Raymond, SD	.
Jul 16, 7:42 PM CDT	FUNNEL CLOUD	2 S Raymond, SD	.
Jul 16, 7:45 PM CDT	HAIL 1	5 Nw Clark, SD	.
Jul 16, 7:50 PM CDT	HAIL 1.75	5 W Clark, SD	WALL CLOUD STILL VISIBLE.
Jul 16, 8:12 PM CDT	FUNNEL CLOUD	3 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, 1:09 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 16, 6:57 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 0.7 hours before the alert went out and 42 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.

267 
WFUS53 KABR 170040
TORABR
SDC025-115-170115-
/O.NEW.KABR.TO.W.0012.160717T0040Z-160717T0115Z/

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

THE NATIONAL WEATHER SERVICE IN ABERDEEN HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN SPINK COUNTY IN NORTHEASTERN SOUTH DAKOTA...
  WEST CENTRAL CLARK COUNTY IN NORTHEASTERN SOUTH DAKOTA...

* UNTIL 815 PM CDT
    
* AT 740 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED OVER RAYMOND...OR 9 MILES WEST OF
  CLARK...MOVING EAST AT 25 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...
  CLARK AROUND 800 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 4483 9798 4493 9800 4498 9773 4482 9768
TIME...MOT...LOC 0040Z 259DEG 22KT 4488 9792 

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

$$

LUECK

2 follow-up statements

675 
WWUS53 KABR 170055
SVSABR

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

SDC115-170104-
/O.CAN.KABR.TO.W.0012.000000T0000Z-160717T0115Z/
SPINK SD-
755 PM CDT SAT JUL 16 2016

...THE TORNADO WARNING FOR EASTERN SPINK COUNTY IS CANCELLED...
    
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT
OF THE WARNED AREA. THEREFORE...THE WARNING HAS BEEN CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM CDT FOR
NORTHEASTERN SOUTH DAKOTA. A SEVERE THUNDERSTORM WATCH ALSO REMAINS
IN EFFECT UNTIL 200 AM CDT FOR NORTHEASTERN SOUTH DAKOTA.

LAT...LON 4483 9790 4489 9792 4494 9772 4482 9768
TIME...MOT...LOC 0054Z 272DEG 19KT 4487 9782 

$$

SDC025-170115-
/O.CON.KABR.TO.W.0012.000000T0000Z-160717T0115Z/
CLARK SD-
755 PM CDT SAT JUL 16 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR CENTRAL
CLARK COUNTY...
        
AT 754 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR CLARK...MOVING EAST AT 20 MPH.

HAZARD...TORNADO AND GOLF BALL SIZE HAIL. 

SOURCE...WEATHER SPOTTERS REPORTED A FUNNEL CLOUD 5 MILES WEST OF
         CLARK 740 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 DANGEROUS STORM WILL BE NEAR...
  CLARK AROUND 805 PM CDT. 

LAT...LON 4483 9790 4489 9792 4494 9772 4482 9768
TIME...MOT...LOC 0054Z 272DEG 19KT 4487 9782 

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

$$

LUECK

970 
WWUS53 KABR 170103
SVSABR

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

SDC025-170113-
/O.CAN.KABR.TO.W.0012.000000T0000Z-160717T0115Z/
CLARK SD-
803 PM CDT SAT JUL 16 2016

...THE TORNADO WARNING FOR CENTRAL CLARK COUNTY IS CANCELLED...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER APPEARS CAPABLE OF PRODUCING A TORNADO.
THEREFORE...THE WARNING HAS BEEN CANCELLED.  HOWEVER SMALL HAIL IS
STILL POSSIBLE WITH THIS THUNDERSTORM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM CDT FOR
NORTHEASTERN SOUTH DAKOTA.

LAT...LON 4483 9790 4489 9792 4494 9772 4482 9768
TIME...MOT...LOC 0102Z 259DEG 22KT 4488 9774 

$$

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, 8:07 PM CDT	Severe Thunderstorm Warning	ABR	Clark, Codington, Hamlin	38 min
Jul 16, 8:15 PM CDT	Tornado Warning	ABR	Clark	30 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.