Alert archive / Minnesota / Tornado Warnings in 2014

Tornado Warning 43, NWS Sioux Falls, SD

June 18, 2014Lyon County, Minnesota

NWS Sioux Falls, SD issued this tornado warning at Jun 18, 2014, 9:49 PM CDT for Lyon County, Minnesota. It was in force for 41 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 18, 2014, 9:49 PM CDT (02:49 UTC)
Expired: Jun 18, 2014, 10:30 PM CDT
In force: 41 min
Issued by: NWS Sioux Falls, SD
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Lyon County, MN

The radar

The Sioux Falls radar (KFSD), 138 km from the middle of the area, began a volume at 02:49 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 18, 10:24 PM CDT	TORNADO	3 Ne Marshall, MN

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

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 2.8 hours before the alert went out and 167 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: 47 J/kg
Mixed-layer CIN: -493 J/kg
Mixed-layer LCL: 1291 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 84 m²/s²
0-3 km storm-relative helicity: 186 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.

150 
WFUS53 KFSD 190249
TORFSD
MNC083-190330-
/O.NEW.KFSD.TO.W.0043.140619T0249Z-140619T0330Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
949 PM CDT WED JUN 18 2014

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN LYON COUNTY IN SOUTHWEST MINNESOTA...

* UNTIL 1030 PM CDT

* AT 947 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 5 MILES NORTHEAST OF MARSHALL...AND MOVING
  NORTHEAST AT 15 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...
  COTTONWOOD AROUND 1010 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.

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

&&

LAT...LON 4462 9560 4454 9558 4446 9562 4450 9589
      4464 9585 4463 9561
TIME...MOT...LOC 0249Z 219DEG 15KT 4452 9573

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

$$

WEISSER

3 follow-up statements

592 
WWUS53 KFSD 190302
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1002 PM CDT WED JUN 18 2014

MNC083-190330-
/O.CON.KFSD.TO.W.0043.000000T0000Z-140619T0330Z/
LYON MN-
1002 PM CDT WED JUN 18 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN LYON COUNTY
UNTIL 1030 PM CDT...

AT 1000 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR COTTONWOOD...AND MOVING NORTHEAST AT 15 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...
  COTTONWOOD AROUND 1015 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.

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

&&

LAT...LON 4462 9560 4454 9558 4446 9562 4450 9589
      4464 9585 4463 9561
TIME...MOT...LOC 0303Z 213DEG 13KT 4457 9568

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

$$

WEISSER

203 
WWUS53 KFSD 190317
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1017 PM CDT WED JUN 18 2014

MNC083-190330-
/O.CON.KFSD.TO.W.0043.000000T0000Z-140619T0330Z/
LYON MN-
1017 PM CDT WED JUN 18 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN LYON COUNTY
UNTIL 1030 PM CDT...

AT 1014 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR MARSHALL...AND MOVING NORTHEAST AT 20 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.

A NEW STRONGER ROTATION HAS JUST DEVELOPED ABOUT 4 MILES NORTHEAST 
OF MARSHALL.

THIS DANGEROUS STORM WILL BE NEAR...
  COTTONWOOD AROUND 1030 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.

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

&&

LAT...LON 4462 9560 4454 9558 4446 9562 4450 9589
      4464 9585 4463 9561
TIME...MOT...LOC 0317Z 212DEG 16KT 4449 9574

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

$$

WEISSER

808 
WWUS53 KFSD 190322
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1022 PM CDT WED JUN 18 2014

MNC083-190330-
/O.CON.KFSD.TO.W.0043.000000T0000Z-140619T0330Z/
LYON MN-
1022 PM CDT WED JUN 18 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN LYON COUNTY
UNTIL 1030 PM CDT...

AT 1019 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR MARSHALL...AND MOVING NORTHEAST AT 20 MPH.

HAZARD...TORNADO AND HALF DOLLAR 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...
  COTTONWOOD AROUND 1030 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.

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

&&

LAT...LON 4462 9560 4454 9558 4446 9562 4450 9589
      4464 9585 4463 9561
TIME...MOT...LOC 0322Z 212DEG 16KT 4451 9572

TORNADO...RADAR INDICATED
HAIL...1.25IN

$$

WEISSER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 18, 10:28 PM CDT	Tornado Warning Tornado observed	FSD	Lyon	32 min
Jun 18, 10:30 PM CDT	Tornado Warning	FSD	Lyon	30 min
Jun 18, 10:33 PM CDT	Flash Flood Warning	FSD	Lyon	10 hr
Jun 19, 8:27 AM CDT	Areal Flood Warning	FSD	Lyon	12 hr

Nearby

Tornado Warnings in Minnesota, 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.