Alert archive / Nebraska / Tornado Warnings in 2016

Tornado Warning 7, NWS Cheyenne, WY

July 7, 2016Cheyenne County, Nebraska

NWS Cheyenne, WY issued this tornado warning at Jul 7, 2016, 3:27 PM MDT for Cheyenne County, Nebraska. It was in force for 33 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
Jul 7, 2016, 3:27 PM MDT (21:27 UTC)
Expired
Jul 7, 2016, 4:00 PM MDT
In force
33 min
Issued by
NWS Cheyenne, WY
Area
Storm-based polygon
Tornado
Observed
Hail
0.75 in

County Cheyenne County, NE

The radar

The Cheyenne radar (KCYS), 148 km from the middle of the area, began a volume at 21:30 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

TimeReportWhereRemark
Jul 7, 3:29 PM MDTTORNADO7 W Lorenzo, NETWO LANDSPOUT TORNADOES WERE ON THE GROUND 7 MILES WEST OF LORENZO NEBRASKA. EACH TORNADO LASTED FOR 10 MINUTES BEFORE DISSIPATING.

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

The nearest sounding before it

Denver, CO (KDEN), launched 12:00Z, 9.5 hours before the alert went out and 132 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, Denver, CO at 12:00Z on 2016-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 2016-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -52 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2978 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
-52 m²/s²
0-3 km storm-relative helicity
118 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

012 
WFUS55 KCYS 072127
TORCYS
NEC033-072200-
/O.NEW.KCYS.TO.W.0007.160707T2127Z-160707T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CHEYENNE WY
327 PM MDT THU JUL 7 2016

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN CHEYENNE COUNTY IN THE PANHANDLE OF NEBRASKA...

* UNTIL 400 PM MDT

* AT 327 PM MDT...A CONFIRMED TORNADO WAS LOCATED OVER LORENZO...OR 9
  MILES SOUTHWEST OF SIDNEY...MOVING EAST AT 25 MPH.

  HAZARD...TORNADO. 

  SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO. 

  IMPACT...EXPECT DAMAGE TO MOBILE HOMES...ROOFS...AND VEHICLES. 

* THIS TORNADIC THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF
  SOUTHERN CHEYENNE COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A TORNADO IS ON THE GROUND. TAKE COVER NOW! MOVE TO A
BASEMENT OR AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY
BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A MOBILE HOME...OR
IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4111 10323 4106 10268 4100 10268 4100 10323
      4101 10324
TIME...MOT...LOC 2127Z 270DEG 23KT 4103 10307 

TORNADO...OBSERVED
HAIL...<.75IN

$$

RUBIN
2 follow-up statements
948 
WWUS55 KCYS 072141
SVSCYS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
341 PM MDT THU JUL 7 2016

NEC033-072200-
/O.CON.KCYS.TO.W.0007.000000T0000Z-160707T2200Z/
CHEYENNE NE-
341 PM MDT THU JUL 7 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 PM MDT FOR
SOUTHEASTERN CHEYENNE COUNTY...
    
AT 340 PM MDT...A CONFIRMED LANDSPOUT TORNADO WAS LOCATED OVER
LORENZO...OR 8 MILES SOUTHWEST OF SIDNEY...MOVING EAST AT 10 MPH.

HAZARD...TORNADO. 

SOURCE...WEATHER SPOTTERS CONFIRMED LANDSPOUT TORNADO. 

IMPACT...EXPECT DAMAGE TO MOBILE HOMES...ROOFS...AND VEHICLES. 

THIS TORNADO WILL BE NEAR...
  LORENZO AROUND 345 PM MDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A TORNADO IS ON THE GROUND. TAKE COVER NOW! MOVE TO A
BASEMENT OR AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY
BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A MOBILE HOME...OR
IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4110 10312 4106 10268 4100 10268 4100 10313
TIME...MOT...LOC 2140Z 276DEG 8KT 4103 10307 

TORNADO...OBSERVED
HAIL...<.75IN

$$

RUBIN
266 
WWUS55 KCYS 072156
SVSCYS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
356 PM MDT THU JUL 7 2016

NEC033-072205-
/O.EXP.KCYS.TO.W.0007.000000T0000Z-160707T2200Z/
CHEYENNE NE-
356 PM MDT THU JUL 7 2016

...THE TORNADO WARNING FOR SOUTHEASTERN CHEYENNE COUNTY WILL EXPIRE
AT 400 PM MDT...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER APPEARS CAPABLE OF PRODUCING A TORNADO.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.

LAT...LON 4110 10312 4106 10268 4100 10268 4100 10313
TIME...MOT...LOC 2154Z 270DEG 23KT 4103 10307 

$$

RUBIN

Nearby

Tornado Warnings in Nebraska, 2016Every tornado warning in 2016Tornadoes in 2016

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.