Alert archive / Nebraska / Tornado Warnings in 2014

Tornado Warning 26, NWS Sioux Falls, SD

June 17, 2014Dixon County, Nebraska

NWS Sioux Falls, SD issued this tornado warning at Jun 17, 2014, 8:38 PM CDT for Dixon County, Nebraska. It was in force for 52 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
Jun 17, 2014, 8:38 PM CDT (01:38 UTC)
Expired
Jun 17, 2014, 9:30 PM CDT
In force
52 min
Issued by
NWS Sioux Falls, SD
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.25 in

County Dixon County, NE

The radar

The Sioux Falls radar (KFSD), 129 km from the middle of the area, began a volume at 01:38 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 17, 6:48 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 1.6 hours before the alert went out and 134 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-pSkew-T log-p diagram, Omaha, NE at 00:00Z on 2014-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4092 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Omaha, NE at 00:00Z on 2014-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 98 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
4092 J/kg
Mixed-layer CIN
-70 J/kg
Mixed-layer LCL
1440 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
98 m²/s²
0-3 km storm-relative helicity
163 m²/s²
Significant tornado parameter
1.0
Supercell composite
14.4

Open this sounding in Storm Lab

The text

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

530 
WFUS53 KFSD 180138
TORFSD
NEC051-180230-
/O.NEW.KFSD.TO.W.0026.140618T0138Z-140618T0230Z/

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

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN DIXON COUNTY IN NORTHEAST NEBRASKA...

* UNTIL 930 PM CDT

* AT 836 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR COLERIDGE...AND MOVING SOUTHEAST AT 10
  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...
  CONCORD AROUND 925 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING TORNADOES. TAKE COVER IN A
BASEMENT OR STORM SHELTER NOW!

&&

LAT...LON 4234 9703 4260 9703 4260 9701 4251 9683
      4226 9687
TIME...MOT...LOC 0138Z 299DEG 10KT 4246 9713

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

$$

SCHUMACHER
2 follow-up statements
801 
WWUS53 KFSD 180200
SVSFSD

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

NEC051-180230-
/O.CON.KFSD.TO.W.0026.000000T0000Z-140618T0230Z/
DIXON NE-
900 PM CDT TUE JUN 17 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHWESTERN DIXON COUNTY
UNTIL 930 PM CDT...

AT 857 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 6 MILES NORTHWEST OF DIXON...AND MOVING SOUTHEAST AT 10
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...
  DIXON AROUND 925 PM CDT.
  CONCORD AROUND 930 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING TORNADOES. TAKE COVER IN A
BASEMENT OR STORM SHELTER NOW!

&&

LAT...LON 4234 9703 4260 9703 4260 9701 4251 9683
      4226 9687
TIME...MOT...LOC 0159Z 299DEG 10KT 4245 9710

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

$$

SCHUMACHER
524 
WWUS53 KFSD 180212
SVSFSD

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

NEC051-180230-
/O.CON.KFSD.TO.W.0026.000000T0000Z-140618T0230Z/
DIXON NE-
912 PM CDT TUE JUN 17 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR WEST CENTRAL DIXON COUNTY
UNTIL 930 PM CDT...

AT 908 PM CDT...A CONFIRMED TORNADO WAS LOCATED 6 MILES NORTHWEST OF
DIXON...AND MOVING SOUTHEAST AT 10 MPH.

HAZARD...DAMAGING TORNADO AND PING PONG BALL SIZE HAIL. 

SOURCE...AN OFF DUTY NATIONAL WEATHER SERVICE EMPLOYEE CONFIRMED A 
         TORNADO NORTH OF THE INTERSECTION OF HIGHWAY 15 AND 20 NEAR 
         LAUREL.

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 STORM WILL BE NEAR...
  DIXON AND CONCORD AROUND 930 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING TORNADOES. TAKE COVER IN A
BASEMENT OR STORM SHELTER NOW!

&&

LAT...LON 4231 9696 4234 9703 4260 9703 4260 9701
      4251 9683
TIME...MOT...LOC 0211Z 299DEG 10KT 4246 9707

TORNADO...OBSERVED
HAIL...1.50IN

$$

SCHUMACHER

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 17, 9:24 PM CDTTornado Warning Tornado observedFSDDixon51 min
Jun 17, 10:09 PM CDTTornado Warning Tornado observedFSDDixon36 min
Jun 17, 10:47 PM CDTTornado WarningFSDDixon43 min
Jun 17, 11:24 PM CDTSevere Thunderstorm WarningFSDDakota, Dixon51 min
Jun 17, 11:29 PM CDTFlash Flood WarningFSDDakota, Dixon9 hr

Nearby

Tornado Warnings in Nebraska, 2014Every tornado warning in 2014Tornadoes 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.