Alert archive / Nebraska / Tornado Warnings in 2014

Tornado Warning 9, NWS Cheyenne, WY

June 3, 2014Morrill County, Nebraska

NWS Cheyenne, WY issued this tornado warning at Jun 3, 2014, 5:39 PM MDT for Morrill County, Nebraska. It was in force for 29 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 3, 2014, 5:39 PM MDT (23:39 UTC)
Expired: Jun 3, 2014, 6:08 PM MDT
In force: 29 min
Issued by: NWS Cheyenne, WY
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 4.25 in

County Morrill County, NE

The radar

The Cheyenne radar (KCYS), 179 km from the middle of the area, began a volume at 23:39 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 3, 5:45 PM MDT	HAIL 2.75	6 Wnw Broadwater, NE
Jun 3, 6:04 PM MDT	HAIL 2.5	12 Ne Broadwater, NE

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 3, 2:11 PM MDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.7 hours before the alert went out and 187 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: 1655 J/kg
Mixed-layer CIN: -56 J/kg
Mixed-layer LCL: 898 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 108 m²/s²
0-3 km storm-relative helicity: 280 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 5.6

Open this sounding in Storm Lab

The text

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

465 
WFUS55 KCYS 032339
TORCYS
NEC123-040015-
/O.NEW.KCYS.TO.W.0009.140603T2339Z-140604T0015Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CHEYENNE WY
539 PM MDT TUE JUN 3 2014

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN MORRILL COUNTY IN THE PANHANDLE OF NEBRASKA...

* UNTIL 615 PM MDT

* AT 534 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 7 MILES EAST OF NORTHPORT...AND MOVING
  SOUTHEAST AT 55 MPH.

  HAZARD...TORNADO AND SOFTBALL OR LARGER 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 EASTERN
  MORRILL COUNTY...INCLUDING THE FOLLOWING LOCATIONS...BROADWATER.

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 4144 10265 4144 10268 4169 10311 4187 10297
      4179 10268 4174 10262 4145 10263
TIME...MOT...LOC 2339Z 298DEG 46KT 4169 10289

TORNADO...RADAR INDICATED
HAIL...4.25IN

$$

MAZUR

3 follow-up statements

081 
WWUS55 KCYS 032350
SVSCYS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
550 PM MDT TUE JUN 3 2014

NEC123-040015-
/O.CON.KCYS.TO.W.0009.000000T0000Z-140604T0015Z/
MORRILL NE-
550 PM MDT TUE JUN 3 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN MORRILL
COUNTY UNTIL 615 PM MDT...

AT 548 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 11 MILES EAST OF THE INTERSECTION OF HIGHWAY 385 AND
92...AND MOVING SOUTHEAST AT 45 MPH.

HAZARD...TORNADO AND SOFTBALL OR LARGER 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.

LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF SOUTHEASTERN MORRILL COUNTY.

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 4144 10265 4144 10268 4165 10297 4182 10283
      4179 10268 4174 10262 4145 10263
TIME...MOT...LOC 2350Z 303DEG 41KT 4161 10275

TORNADO...RADAR INDICATED
HAIL...4.25IN

$$

MAZUR

664 
WWUS55 KCYS 032359
SVSCYS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
559 PM MDT TUE JUN 3 2014

NEC123-040015-
/O.CON.KCYS.TO.W.0009.000000T0000Z-140604T0015Z/
MORRILL NE-
559 PM MDT TUE JUN 3 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN MORRILL
COUNTY UNTIL 615 PM MDT...

AT 557 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 6 MILES NORTH OF LISCO...AND MOVING SOUTHEAST AT 45 MPH.

HAZARD...TORNADO AND SOFTBALL OR LARGER 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.

LOCATIONS IMPACTED INCLUDE...

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 4175 10263 4174 10262 4145 10263 4156 10279
      4178 10276 4176 10268
TIME...MOT...LOC 2359Z 303DEG 41KT 4157 10263

TORNADO...RADAR INDICATED
HAIL...4.25IN

$$

MAZUR

832 
WWUS55 KCYS 040008
SVSCYS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
608 PM MDT TUE JUN 3 2014

NEC123-040018-
/O.CAN.KCYS.TO.W.0009.000000T0000Z-140604T0015Z/
MORRILL NE-
608 PM MDT TUE JUN 3 2014

...THE TORNADO WARNING FOR SOUTHEASTERN MORRILL COUNTY IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.

LAT...LON 4175 10263 4174 10262 4145 10263 4156 10279
      4178 10276 4176 10268
TIME...MOT...LOC 0008Z 303DEG 41KT 4151 10252

$$

MAZUR

The office that day

Everything else NWS Cheyenne, WY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 3, 2:18 AM MDT	Special Weather Statement	CYS	Dawes	27 min
Jun 3, 2:24 PM MDT	Special Weather Statement	CYS	Morrill	36 min
Jun 3, 3:59 PM MDT	Severe Thunderstorm Warning	CYS	Scotts Bluff, Sioux	46 min
Jun 3, 4:54 PM MDT	Severe Thunderstorm Warning	CYS	Box Butte, Morrill, Scotts Bluff, Sioux	51 min

Nearby

Tornado Warnings in Nebraska, 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.