Alert archive / South Dakota / Tornado Warnings in 2015

Tornado Warning 5, NWS Sioux Falls, SD

May 10, 2015Charles Mix County, Douglas County, Hutchinson County, South Dakota

NWS Sioux Falls, SD issued this tornado warning at May 10, 2015, 10:29 AM CDT for Charles Mix County, Douglas County, Hutchinson County, South Dakota. It was in force for 31 min. 2 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: May 10, 2015, 10:29 AM CDT (15:29 UTC)
Expired: May 10, 2015, 11:00 AM CDT
In force: 31 min
Issued by: NWS Sioux Falls, SD
Area: Storm-based polygon
Tornado: Observed
Hail: 1.25 in

Counties Charles Mix County, SD, Douglas County, SD, Hutchinson County, SD

The radar

The Sioux Falls radar (KFSD), 125 km from the middle of the area, began a volume at 15:29 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 10, 10:30 AM CDT	TORNADO	7 Ssw Delmont, SD
May 10, 10:44 AM CDT	TORNADO	Delmont, SD	DAMAGE AND INJURIES REPORTED BY LAW ENFORCEMENT IN TOWN.

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, 3.5 hours before the alert went out and 191 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: 483 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 389 m²/s²
0-3 km storm-relative helicity: 692 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.

729 
WFUS53 KFSD 101529
TORFSD
SDC023-043-067-101600-
/O.NEW.KFSD.TO.W.0005.150510T1529Z-150510T1600Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1029 AM CDT SUN MAY 10 2015

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN DOUGLAS COUNTY IN SOUTH CENTRAL SOUTH DAKOTA...
  WEST CENTRAL HUTCHINSON COUNTY IN SOUTHEASTERN SOUTH DAKOTA...
  EAST CENTRAL CHARLES MIX COUNTY IN SOUTH CENTRAL SOUTH DAKOTA...

* UNTIL 1100 AM CDT

* AT 1029 AM CDT...A CONFIRMED TORNADO WAS LOCATED NEAR WAGNER...OR
  16 MILES EAST OF LAKE ANDES...MOVING NORTH AT 35 MPH.

  HAZARD...DAMAGING TORNADO AND HALF DOLLAR SIZE HAIL. 

  SOURCE...LAW ENFORCEMENT CONFIRMED TORNADO. 

  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. 

* THE TORNADO WILL BE NEAR...
  DELMONT AROUND 1045 AM CDT.

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 4306 9815 4307 9830 4339 9824 4337 9804
TIME...MOT...LOC 1529Z 187DEG 29KT 4314 9821 

TORNADO...OBSERVED
HAIL...1.25IN

$$

WILLIAMS

1 follow-up statement

360 
WWUS53 KFSD 101540
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1040 AM CDT SUN MAY 10 2015

SDC023-101550-
/O.CAN.KFSD.TO.W.0005.000000T0000Z-150510T1600Z/
CHARLES MIX SD-
1040 AM CDT SUN MAY 10 2015

...THE TORNADO WARNING FOR EAST CENTRAL CHARLES MIX COUNTY IS
CANCELLED...
    
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT 
OF THE WARNED AREA.THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 4339 9824 4337 9804 4320 9811 4324 9825
      4324 9826
TIME...MOT...LOC 1540Z 193DEG 38KT 4326 9817 

$$

SDC043-067-101600-
/O.CON.KFSD.TO.W.0005.000000T0000Z-150510T1600Z/
DOUGLAS SD-HUTCHINSON SD-
1040 AM CDT SUN MAY 10 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1100 AM CDT FOR
SOUTHEASTERN DOUGLAS AND WEST CENTRAL HUTCHINSON COUNTIES...
    
AT 1040 AM CDT...A CONFIRMED TORNADO WAS LOCATED OVER DELMONT...OR 13
MILES SOUTHWEST OF PARKSTON...MOVING NORTH AT 45 MPH.

HAZARD...DAMAGING TORNADO AND HALF DOLLAR SIZE HAIL. 

SOURCE...LAW ENFORCEMENT CONFIRMED TORNADO. 

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 TORNADIC THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF
SOUTHEASTERN DOUGLAS AND WEST CENTRAL HUTCHINSON 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 4339 9824 4337 9804 4320 9811 4324 9825
      4324 9826
TIME...MOT...LOC 1540Z 193DEG 38KT 4326 9817 

TORNADO...OBSERVED
HAIL...1.25IN

$$

WILLIAMS

The office that day

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

Issued	Product	Office	Counties	Lasted
May 10, 9:54 AM CDT	Severe Thunderstorm Warning	FSD	Charles Mix, Douglas	36 min
May 10, 10:16 AM CDT	Severe Thunderstorm Warning	FSD	Charles Mix, Douglas, Hutchinson	29 min
May 10, 10:55 AM CDT	Tornado Warning Tornado observed	FSD	Davison, Douglas, Hutchinson	35 min
May 10, 11:23 AM CDT	Tornado Warning	FSD	Davison, Hanson, Hutchinson	37 min
May 10, 11:55 AM CDT	Tornado Warning	FSD	Davison, Hanson, Sanborn	35 min
May 10, 12:27 PM CDT	Severe Thunderstorm Warning	FSD	Davison, Hanson, Miner, Sanborn	33 min
May 10, 12:28 PM CDT	Tornado Warning	FSD	Davison, Hanson, Miner, Sanborn	32 min
May 10, 1:40 PM CDT	Severe Thunderstorm Warning	FSD	Union	35 min
May 10, 1:57 PM CDT	Severe Thunderstorm Warning	FSD	Hutchinson, McCook, Turner	33 min
May 10, 2:02 PM CDT	Severe Thunderstorm Warning	FSD	Union	28 min
May 10, 2:51 PM CDT	Tornado Warning	FSD	Lincoln, Union	24 min
May 10, 3:15 PM CDT	Severe Thunderstorm Warning	FSD	Union	30 min
May 10, 3:27 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln	33 min
May 10, 4:34 PM CDT	Flash Flood Warning	FSD	Lincoln	4 hr
May 10, 4:56 PM CDT	Severe Thunderstorm Warning	FSD	Beadle, Sanborn	34 min

Nearby

Tornado Warnings in South Dakota, 2015 Every tornado warning in 2015 Tornadoes in 2015

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.