Alert archive / Nebraska / Tornado Warnings in 2013

Tornado Warning 8, NWS Cheyenne, WY

May 27, 20134 counties in Nebraska

NWS Cheyenne, WY issued this tornado warning at May 27, 2013, 2:28 PM MDT for 4 counties in Nebraska. It was in force for 32 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
May 27, 2013, 2:28 PM MDT (20:28 UTC)
Expired
May 27, 2013, 3:00 PM MDT
In force
32 min
Issued by
NWS Cheyenne, WY
Area
Storm-based polygon
Tornado
Observed
Hail
1.0 in

Counties Banner County, NE, Cheyenne County, NE, Kimball County, NE, Morrill County, NE

The radar

The Cheyenne radar (KCYS), 120 km from the middle of the area, began a volume at 20:29 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
May 27, 2:28 PM MDTTORNADO12 Nw Potter, NETORNADO HAS NOW LIFTED.

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.

IssuedProductOfficeLasted
May 27, 1:19 PM MDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 8.5 hours before the alert went out and 171 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 2013-05-27Temperature 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 2013-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
4442 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
7 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.

056 
WFUS55 KCYS 272028
TORCYS
NEC007-033-105-123-272100-
/O.NEW.KCYS.TO.W.0008.130527T2028Z-130527T2100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CHEYENNE WY
228 PM MDT MON MAY 27 2013

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN BANNER COUNTY IN THE PANHANDLE OF NEBRASKA...
  NORTHWESTERN CHEYENNE COUNTY IN THE PANHANDLE OF NEBRASKA...
  NORTHEASTERN KIMBALL COUNTY IN THE PANHANDLE OF NEBRASKA...
  SOUTHWESTERN MORRILL COUNTY IN THE PANHANDLE OF NEBRASKA...

* UNTIL 300 PM MDT

* AT 220 PM MDT...A CONFIRMED TORNADO WAS LOCATED 6 MILES NORTHWEST
  OF DIX...AND MOVING EAST AT 25 MPH.

  HAZARD...DAMAGING TORNADO AND QUARTER SIZE HAIL.

  SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO.

  IMPACT...MOBILE HOMES WILL BE HEAVILY DAMAGED OR DESTROYED.
           SIGNIFICANT DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL
           OCCUR. FLYING DEBRIS WILL BE DEADLY TO PEOPLE AND ANIMALS.
           EXTENSIVE TREE DAMAGE IS LIKELY.

* THE TORNADO WILL AFFECT MAINLY RURAL AREAS OF NORTHEASTERN
  KIMBALL...NORTHWESTERN CHEYENNE...SOUTHEASTERN BANNER AND
  SOUTHWESTERN MORRILL COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN
CHEYENNE.

&&

LAT...LON 4151 10325 4125 10318 4125 10365 4147 10374
TIME...MOT...LOC 2028Z 258DEG 22KT 4130 10351

TORNADO...OBSERVED
HAIL...1.00IN

$$

RUBIN
2 follow-up statements
924 
WWUS55 KCYS 272043
SVSCYS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
243 PM MDT MON MAY 27 2013

NEC007-033-105-123-272100-
/O.CON.KCYS.TO.W.0008.000000T0000Z-130527T2100Z/
BANNER NE-CHEYENNE NE-KIMBALL NE-MORRILL NE-
243 PM MDT MON MAY 27 2013

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHWESTERN MORRILL...
NORTHEASTERN KIMBALL...NORTHWESTERN CHEYENNE AND SOUTHEASTERN BANNER
COUNTIES UNTIL 300 PM MDT...

AT 239 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 6 MILES NORTHEAST OF DIX...AND MOVING EAST AT 25 MPH.

HAZARD...DEVELOPING TORNADO.

SOURCE...RADAR INDICATED ROTATION.

IMPACT...MOBILE HOMES WILL BE HEAVILY DAMAGED OR DESTROYED.
         SIGNIFICANT DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL
         OCCUR. FLYING DEBRIS WILL BE DEADLY TO PEOPLE AND ANIMALS.
         EXTENSIVE TREE DAMAGE IS LIKELY.

THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF NORTHEASTERN
KIMBALL...NORTHWESTERN CHEYENNE...SOUTHEASTERN BANNER AND
SOUTHWESTERN MORRILL COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN
CHEYENNE.

&&

LAT...LON 4148 10360 4151 10325 4125 10318 4125 10351
TIME...MOT...LOC 2043Z 258DEG 22KT 4132 10339

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

$$

RUBIN
249 
WWUS55 KCYS 272046
SVSCYS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
246 PM MDT MON MAY 27 2013

NEC007-033-105-123-272056-
/O.CAN.KCYS.TO.W.0008.000000T0000Z-130527T2100Z/
BANNER NE-CHEYENNE NE-KIMBALL NE-MORRILL NE-
246 PM MDT MON MAY 27 2013

...THE TORNADO WARNING FOR SOUTHWESTERN MORRILL...NORTHEASTERN
KIMBALL...NORTHWESTERN CHEYENNE AND SOUTHEASTERN BANNER COUNTIES IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM MDT.

LAT...LON 4148 10360 4151 10325 4125 10318 4125 10351
TIME...MOT...LOC 2046Z 258DEG 22KT 4132 10337

$$

RUBIN

The office that day

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

IssuedProductOfficeCountiesLasted
May 26, 8:01 PM MDTSevere Thunderstorm WarningCYSSioux44 min
May 26, 8:30 PM MDTSpecial Weather StatementCYSScotts Bluff45 min
May 26, 9:05 PM MDTSpecial Weather StatementCYSScotts Bluff25 min
May 26, 9:22 PM MDTSevere Thunderstorm WarningCYSBanner, Morrill, Scotts Bluff38 min
May 26, 9:53 PM MDTSpecial Weather StatementCYSScotts Bluff52 min
May 26, 10:16 PM MDTSpecial Weather StatementCYSBox Butte44 min
May 27, 2:00 PM MDTSpecial Weather StatementCYSBanner60 min
May 27, 2:05 PM MDTTornado Warning Tornado observedCYSBanner, Kimball25 min
May 27, 2:57 PM MDTSpecial Weather StatementCYSCheyenne48 min
May 27, 3:33 PM MDTSpecial Weather StatementCYSBanner42 min
May 27, 3:36 PM MDTSpecial Weather StatementCYSMorrill39 min
May 27, 3:38 PM MDTSpecial Weather StatementCYSBox Butte52 min
May 27, 3:45 PM MDTSevere Thunderstorm WarningCYSCheyenne, Morrill60 min
May 27, 3:57 PM MDTSevere Thunderstorm WarningCYSBox Butte, Dawes, Sioux63 min
May 27, 4:02 PM MDTTornado Warning Tornado observedCYSBox Butte, Dawes, Sioux28 min
May 27, 4:11 PM MDTSpecial Weather StatementCYSDawes64 min
May 27, 4:32 PM MDTSpecial Weather StatementCYSDawes58 min
May 27, 4:43 PM MDTSevere Thunderstorm WarningCYSDawes62 min
May 27, 4:46 PM MDTSpecial Weather StatementCYSBox Butte59 min
May 27, 4:47 PM MDTSpecial Weather StatementCYSBox Butte58 min
May 27, 5:28 PM MDTSpecial Weather StatementCYSBox Butte62 min
May 27, 5:35 PM MDTSpecial Weather StatementCYSScotts Bluff40 min
May 27, 5:48 PM MDTSpecial Weather StatementCYSBox Butte57 min

Nearby

Tornado Warnings in Nebraska, 2013Every tornado warning in 2013Tornadoes in 2013

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.