Alert archive / South Dakota / Tornado Warnings in 2006

Tornado Warning 13, NWS Sioux Falls, SD

June 5, 2006Sanborn County, South Dakota

NWS Sioux Falls, SD issued this tornado warning at Jun 5, 2006, 4:50 PM CDT for Sanborn County, South Dakota. It was in force for 25 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: Jun 5, 2006, 4:50 PM CDT (21:50 UTC)
Expired: Jun 5, 2006, 5:15 PM CDT
In force: 25 min
Issued by: NWS Sioux Falls, SD
Area: Counties, with a storm outline in the text

County Sanborn County, SD

The radar

The Sioux Falls radar (KFSD), 118 km from the middle of the area, began a volume at 21:52 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 5, 4:55 PM CDT	HAIL 1.25	10 S Artesian, 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
Jun 5, 2:06 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 9.8 hours before the alert went out and 107 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: 999 J/kg
Mixed-layer CIN: -165 J/kg
Mixed-layer LCL: 1239 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 29 m²/s²
0-3 km storm-relative helicity: 31 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 KFSD 052150
TORFSD
SDC111-052215-
/O.NEW.KFSD.TO.W.0013.060605T2150Z-060605T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
450 PM CDT MON JUN 5 2006

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* TORNADO WARNING FOR...
  SANBORN COUNTY IN EAST CENTRAL SOUTH DAKOTA

* UNTIL 515 PM CDT

* AT 450 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 4 MILES
  NORTHEAST OF LETCHER...OR ABOUT 14 MILES NORTH OF MITCHELL...MOVING
  SOUTHEAST AT 40 MPH.

* THE TORNADO WILL BE NEAR...
  RURAL SANBORN COUNTY THROUGH 500 PM CDT

THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING SITUATION. TAKE
COVER NOW.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM CDT MONDAY
EVENING FOR SOUTHWEST MINNESOTA AND SOUTHEASTERN SOUTH DAKOTA. A
SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 900 PM CDT
MONDAY EVENING FOR NORTHEAST NEBRASKA.

LAT...LON 4407 9814 4393 9829 4385 9813 4386 9785

$$

JM

2 follow-up statements

000 
WWUS53 KFSD 052156
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
454 PM CDT MON JUN 5 2006

SDC111-052215-
/O.CON.KFSD.TO.W.0013.000000T0000Z-060605T2215Z/
SANBORN SD-
454 PM CDT MON JUN 5 2006

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CDT FOR SANBORN
COUNTY...

AT 454 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED 4 MILES NORTHEAST OF
LETCHER...OR ABOUT 13 MILES NORTH OF MITCHELL...MOVING SOUTHEAST AT
40 MPH.

DAMAGING WINDS UP TO 60 MPH WERE REPORTED 15 MILES NORTH OF MITCHELL 
AND A POSSIBLE RAIN WRAPPED TORNADO WAS REPORTED BY A TRAINED 
SPOTTER WITH THIS STORM. THIS IS A DANGEROUS STORM...SEEK SAFE 
SHELTER AND STAY AWAY FROM WINDOWS

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM CDT MONDAY
EVENING FOR SOUTHWEST MINNESOTA AND SOUTHEASTERN SOUTH DAKOTA. A
SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 900 PM CDT
MONDAY EVENING FOR NORTHEAST NEBRASKA.

LAT...LON 4407 9814 4393 9829 4385 9813 4386 9785

$$

JM

000 
WWUS53 KFSD 052214
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
513 PM CDT MON JUN 5 2006

SDC111-052223-
/O.EXP.KFSD.TO.W.0013.000000T0000Z-060605T2215Z/
SANBORN SD-
513 PM CDT MON JUN 5 2006

...THE TORNADO WARNING FOR SANBORN COUNTY EXPIRES AT 515 PM CDT...

THE STORM WILL EXIT THE COUNTY.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM CDT MONDAY
EVENING FOR SOUTHWEST MINNESOTA AND SOUTHEASTERN SOUTH DAKOTA. A
SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 900 PM CDT
MONDAY EVENING FOR NORTHEAST NEBRASKA.

LAT...LON 4407 9814 4393 9829 4385 9813 4386 9785

$$

JM

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 5, 3:18 PM CDT	Severe Thunderstorm Warning	FSD	Beadle	57 min
Jun 5, 3:56 PM CDT	Severe Thunderstorm Warning	FSD	Jerauld, Sanborn	34 min
Jun 5, 4:00 PM CDT	Tornado Warning	FSD	Beadle, Jerauld, Sanborn	30 min
Jun 5, 4:31 PM CDT	Severe Thunderstorm Warning	FSD	Sanborn	29 min
Jun 5, 4:54 PM CDT	Severe Thunderstorm Warning	FSD	Davison	36 min
Jun 5, 4:58 PM CDT	Severe Thunderstorm Warning	FSD	Hanson, Miner	32 min
Jun 5, 5:29 PM CDT	Severe Thunderstorm Warning	FSD	Hanson, McCook	31 min

Nearby

Tornado Warnings in South Dakota, 2006 Every tornado warning in 2006 Tornadoes in 2006

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.