Alert archive / South Dakota / Tornado Warnings in 2016

Tornado Warning 4, NWS Aberdeen, SD

May 28, 2016Edmunds County, Walworth County, South Dakota

NWS Aberdeen, SD issued this tornado warning at May 28, 2016, 11:08 AM CDT for Edmunds County, Walworth County, South Dakota. It was in force for 22 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 28, 2016, 11:08 AM CDT (16:08 UTC)
Expired: May 28, 2016, 11:30 AM CDT
In force: 22 min
Issued by: NWS Aberdeen, SD
Area: Storm-based polygon
Tornado: Observed
Hail: 0.0 in

Counties Edmunds County, SD, Walworth County, SD

The radar

The Aberdeen radar (KABR), 99 km from the middle of the area, began a volume at 16:10 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 28, 11:10 AM CDT	TORNADO	4 Ssw Bowdle, SD	CORRECTED REPORT: TOUCHED DOWN A SECOND TIME IN AN OPEN FIELD. NO DAMAGE.

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

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 4.1 hours before the alert went out and 111 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: 124 J/kg
Mixed-layer CIN: -48 J/kg
Mixed-layer LCL: 786 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: -1 m²/s²
0-3 km storm-relative helicity: 21 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

127 
WFUS53 KABR 281608
TORABR
SDC045-129-281630-
/O.NEW.KABR.TO.W.0004.160528T1608Z-160528T1630Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ABERDEEN SD
1108 AM CDT SAT MAY 28 2016

THE NATIONAL WEATHER SERVICE IN ABERDEEN HAS ISSUED A

* TORNADO WARNING FOR...
  WEST CENTRAL EDMUNDS COUNTY IN NORTH CENTRAL SOUTH DAKOTA...
  EAST CENTRAL WALWORTH COUNTY IN NORTH CENTRAL SOUTH DAKOTA...

* UNTIL 1130 AM CDT

* AT 1106 AM CDT...A CONFIRMED TORNADO WAS LOCATED NEAR BOWDLE...OR 19
  MILES SOUTHEAST OF SELBY...AND IS NEARLY STATIONARY.

  HAZARD...TORNADO. 

  SOURCE...WEATHER SPOTTERS CONFIRMED A SMALL TORNADO 2 MILES
           SOUTHWEST OF BOWDLE. 

  IMPACT...MINIMAL IMPACT. 

* THIS TORNADIC THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF
  WEST CENTRAL EDMUNDS AND EAST CENTRAL WALWORTH COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A TORNADO IS ON THE GROUND. 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 4531 9960 4530 9975 4541 9975 4540 9964
TIME...MOT...LOC 1606Z 346DEG 2KT 4537 9969 

TORNADO...OBSERVED
HAIL...0.00IN

$$

SCARLETT

2 follow-up statements

980 
WWUS53 KABR 281619
SVSABR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
1119 AM CDT SAT MAY 28 2016

SDC045-129-281630-
/O.CON.KABR.TO.W.0004.000000T0000Z-160528T1630Z/
EDMUNDS SD-WALWORTH SD-
1119 AM CDT SAT MAY 28 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1130 AM CDT FOR WEST
CENTRAL EDMUNDS AND EAST CENTRAL WALWORTH COUNTIES...
    
AT 1118 AM CDT...A CONFIRMED WEAK TORNADO WAS LOCATED 3 MILES
SOUTHWEST OF BOWDLE...OR 19 MILES SOUTHEAST OF SELBY...AND IS MOVING
SOUTH AT 5 MPH.

HAZARD...TORNADO. 

SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO. 

IMPACT...EXPECT DAMAGE TO MOBILE HOMES...ROOFS...AND VEHICLES. 

THIS TORNADIC THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF
WEST CENTRAL EDMUNDS AND EAST CENTRAL WALWORTH COUNTIES.

LAT...LON 4531 9960 4530 9975 4538 9974 4538 9965
TIME...MOT...LOC 1618Z 346DEG 2KT 4536 9969 

TORNADO...OBSERVED
HAIL...<.75IN

$$

SCARLETT

664 
WWUS53 KABR 281627
SVSABR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
1127 AM CDT SAT MAY 28 2016

SDC045-129-281635-
/O.EXP.KABR.TO.W.0004.000000T0000Z-160528T1630Z/
EDMUNDS SD-WALWORTH SD-
1127 AM CDT SAT MAY 28 2016

...THE TORNADO WARNING FOR WEST CENTRAL EDMUNDS AND EAST CENTRAL
WALWORTH COUNTIES WILL EXPIRE AT 1130 AM CDT...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER APPEARS CAPABLE OF PRODUCING A TORNADO.
SPOTTERS HAVE REPORTED THE TORNADO HAS DISSIPATED. THEREFORE THE
WARNING WILL BE ALLOWED TO EXPIRE. 

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
ABERDEEN.

LAT...LON 4531 9960 4530 9975 4538 9974 4538 9965
TIME...MOT...LOC 1624Z 346DEG 2KT 4536 9969 

$$

SCARLETT

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.