Alert archive / South Dakota / Tornado Warnings in 2014

Tornado Warning 13, NWS Aberdeen, SD

August 9, 2014Deuel County, Hamlin County, South Dakota

NWS Aberdeen, SD issued this tornado warning at Aug 9, 2014, 5:46 PM CDT for Deuel County, Hamlin County, South Dakota. It was in force for 29 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 9, 2014, 5:46 PM CDT (22:46 UTC)
Expired: Aug 9, 2014, 6:15 PM CDT
In force: 29 min
Issued by: NWS Aberdeen, SD
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Deuel County, SD, Hamlin County, SD

The radar

The Sioux Falls radar (KFSD), 114 km from the middle of the area, began a volume at 22:48 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

Aberdeen, SD (KABR), launched 12:00Z, 10.8 hours before the alert went out and 123 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: 116 J/kg
Mixed-layer CIN: -67 J/kg
Mixed-layer LCL: 549 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 38 m²/s²
0-3 km storm-relative helicity: 38 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WFUS53 KABR 092246
TORABR
SDC039-057-092315-
/O.NEW.KABR.TO.W.0013.140809T2246Z-140809T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ABERDEEN SD
546 PM CDT SAT AUG 9 2014

THE NATIONAL WEATHER SERVICE IN ABERDEEN HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN DEUEL COUNTY IN NORTHEAST SOUTH DAKOTA...
  SOUTHEASTERN HAMLIN COUNTY IN NORTHEAST SOUTH DAKOTA...

* UNTIL 615 PM CDT

* AT 543 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR DEMPSTER...OR NEAR ESTELLINE...MOVING EAST
  AT 10 MPH.

  HAZARD...TORNADO.

  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...
  POINSETT COLONY AROUND 555 PM CDT.
  ESTELLINE AROUND 600 PM CDT.

THIS WARNING INCLUDES INTERSTATE 29 BETWEEN MILE MARKERS 158 AND 161.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4453 9687 4460 9697 4467 9697 4471 9680
TIME...MOT...LOC 2246Z 274DEG 9KT 4462 9694

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$
DORN

1 follow-up statement

650 
WWUS53 KABR 092312
SVSABR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
612 PM CDT SAT AUG 9 2014

SDC039-057-092323-
/O.EXP.KABR.TO.W.0013.000000T0000Z-140809T2315Z/
HAMLIN SD-DEUEL SD-
612 PM CDT SAT AUG 9 2014

...THE TORNADO WARNING FOR SOUTHWESTERN DEUEL AND SOUTHEASTERN HAMLIN
COUNTIES WILL EXPIRE AT 615 PM CDT/515 PM MDT/...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
HOWEVER...HEAVY RAIN IS STILL POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 4453 9687 4460 9697 4467 9697 4471 9680
TIME...MOT...LOC 2313Z 274DEG 9KT 4462 9685

$$
DORN

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 9, 4:11 PM CDT	Flash Flood Warning	ABR	Hamlin	10 hr
Aug 9, 4:40 PM CDT	Tornado Warning Tornado observed	ABR	Deuel	20 min
Aug 9, 5:35 PM CDT	Flash Flood Warning	ABR	Roberts	12 hr
Aug 9, 6:51 PM CDT	Flash Flood Warning	ABR	Grant	6 hr

Nearby

Tornado Warnings in South Dakota, 2014 Every tornado warning in 2014 Tornadoes in 2014

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.