Alert archive / South Dakota / Tornado Warnings in 2014

Tornado Warning 29, NWS Sioux Falls, SD

June 17, 2014Minnehaha County, South Dakota

NWS Sioux Falls, SD issued this tornado warning at Jun 17, 2014, 10:33 PM CDT for Minnehaha County, South Dakota. It was in force for 27 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: Jun 17, 2014, 10:33 PM CDT (03:33 UTC)
Expired: Jun 17, 2014, 11:00 PM CDT
In force: 27 min
Issued by: NWS Sioux Falls, SD
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.5 in

County Minnehaha County, SD

The radar

The Sioux Falls radar (KFSD), 25 km from the middle of the area, began a volume at 03:34 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
Jun 17, 10:44 PM CDT	TORNADO	3 Sse Humboldt, SD
Jun 17, 10:48 PM CDT	TORNADO	3 S Humboldt, SD	DAMAGE TO HOUSE.

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
Jun 17, 6:48 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 3.6 hours before the alert went out and 186 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: 1177 J/kg
Mixed-layer CIN: -148 J/kg
Mixed-layer LCL: 1299 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 52 m²/s²
0-3 km storm-relative helicity: 41 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 2.5

Open this sounding in Storm Lab

The text

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

990 
WFUS53 KFSD 180333
TORFSD
SDC099-180400-
/O.NEW.KFSD.TO.W.0029.140618T0333Z-140618T0400Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1033 PM CDT TUE JUN 17 2014

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN MINNEHAHA COUNTY IN SOUTHEAST SOUTH DAKOTA...

* UNTIL 1100 PM CDT

* AT 1031 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR HUMBOLDT...AND MOVING SOUTH AT 20 MPH.

  HAZARD...TORNADO AND PING PONG 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...
  WALL LAKE AROUND 1050 PM CDT.

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 4351 9695 4350 9703 4350 9708 4351 9708
      4362 9713 4365 9699
TIME...MOT...LOC 0333Z 358DEG 15KT 4359 9704

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

CHAPMAN

2 follow-up statements

692 
WWUS53 KFSD 180347
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1047 PM CDT TUE JUN 17 2014

SDC099-180400-
/O.CON.KFSD.TO.W.0029.000000T0000Z-140618T0400Z/
MINNEHAHA SD-
1047 PM CDT TUE JUN 17 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHWESTERN MINNEHAHA
COUNTY UNTIL 1100 PM CDT...

AT 1045 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR HUMBOLDT...AND MOVING SOUTH AT 5 MPH.

HAZARD...TORNADO AND PING PONG 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 AFFECT MAINLY RURAL AREAS OF SOUTHWESTERN
MINNEHAHA COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. TAKE COVER NOW.

&&

LAT...LON 4354 9698 4352 9703 4352 9709 4362 9713
      4365 9699
TIME...MOT...LOC 0347Z 012DEG 5KT 4359 9706

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

CHAPMAN

799 
WWUS53 KFSD 180354
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1054 PM CDT TUE JUN 17 2014

SDC099-180400-
/O.CON.KFSD.TO.W.0029.000000T0000Z-140618T0400Z/
MINNEHAHA SD-
1054 PM CDT TUE JUN 17 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR WEST CENTRAL MINNEHAHA
COUNTY UNTIL 1100 PM CDT...

AT 1053 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR HUMBOLDT...AND MOVING SOUTHWEST AT 5 MPH.

HAZARD...TORNADO AND PING PONG 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 AFFECT MAINLY RURAL AREAS OF WEST CENTRAL
MINNEHAHA COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.

TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. TAKE COVER NOW.

&&

LAT...LON 4356 9698 4355 9704 4356 9711 4362 9713
      4365 9699
TIME...MOT...LOC 0354Z 066DEG 2KT 4360 9707

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

CHAPMAN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 17, 9:41 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln, Union	49 min
Jun 17, 9:44 PM CDT	Severe Thunderstorm Warning	FSD	McCook, Minnehaha	46 min
Jun 17, 9:53 PM CDT	Severe Thunderstorm Warning	FSD	McCook	52 min
Jun 17, 10:28 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln	47 min
Jun 17, 10:30 PM CDT	Severe Thunderstorm Warning	FSD	McCook, Minnehaha	45 min
Jun 17, 10:41 PM CDT	Severe Thunderstorm Warning	FSD	McCook, Miner	49 min
Jun 17, 10:47 PM CDT	Severe Thunderstorm Warning	FSD	Hanson, McCook	43 min
Jun 17, 10:58 PM CDT	Tornado Warning	FSD	Minnehaha	32 min
Jun 17, 11:07 PM CDT	Severe Thunderstorm Warning	FSD	McCook, Minnehaha	38 min
Jun 17, 11:20 PM CDT	River Flood Warning	FSD	Lincoln, Minnehaha	63 hr
Jun 17, 11:22 PM CDT	Severe Thunderstorm Warning	FSD	Hanson, McCook	53 min
Jun 17, 11:30 PM CDT	Severe Thunderstorm Warning	FSD	Davison, Hanson, Miner, Sanborn	45 min
Jun 18, 12:03 AM CDT	Severe Thunderstorm Warning	FSD	Hanson, McCook, Turner	42 min
Jun 18, 12:39 AM CDT	Severe Thunderstorm Warning	FSD	Hanson, McCook	51 min
Jun 18, 1:11 AM CDT	Severe Thunderstorm Warning	FSD	McCook	49 min
Jun 18, 6:44 PM CDT	Tornado Warning	FSD	Jerauld	46 min
Jun 18, 6:59 PM CDT	Tornado Warning Tornado observed	FSD	Aurora, Brule, Jerauld	31 min

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.