Alert archive / Nebraska / Tornado Warnings in 2019

Tornado Warning 13, NWS Cheyenne, WY

June 19, 2019Box Butte County, Dawes County, Nebraska

NWS Cheyenne, WY issued this tornado warning at Jun 19, 2019, 10:37 PM MDT for Box Butte County, Dawes County, Nebraska. It was in force for 38 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 19, 2019, 10:37 PM MDT (04:37 UTC)
Expired: Jun 19, 2019, 11:15 PM MDT
In force: 38 min
Issued by: NWS Cheyenne, WY
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.5 in

Counties Box Butte County, NE, Dawes County, NE

The radar

The Rapid City radar (KUDX), 180 km from the middle of the area, began a volume at 04:39 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.

The nearest sounding before it

Rapid City, SD (KUNR), launched 00:00Z, 4.6 hours before the alert went out and 174 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: 415 J/kg
Mixed-layer CIN: -60 J/kg
Mixed-layer LCL: 1727 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 63 m²/s²
0-3 km storm-relative helicity: 183 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 4.8

Open this sounding in Storm Lab

The text

As transmitted.

716 
WFUS55 KCYS 200437
TORCYS
NEC013-045-200515-
/O.NEW.KCYS.TO.W.0013.190620T0437Z-190620T0515Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Cheyenne WY
1037 PM MDT Wed Jun 19 2019

The National Weather Service in Cheyenne has issued a

* Tornado Warning for...
  Northeastern Box Butte County in the Panhandle of Nebraska...
  Southern Dawes County in the Panhandle of Nebraska...

* Until 1115 PM MDT.

* At 1035 PM MDT, a severe thunderstorm capable of producing a
  tornado was located 8 miles northwest of Box Butte Campground, or
  20 miles southwest of Chadron, moving east at 35 mph.

  HAZARD...Tornado and ping pong ball size hail.

  SOURCE...Weather spotters reported funnel cloud 8 miles north 
           northwest of Marsland at 1031 PM.

  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...
  Box Butte Campground and Box Butte Dam around 1045 PM MDT.

Other locations impacted by this tornadic thunderstorm include
Chadron St Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Cheyenne.

&&

LAT...LON 4249 10337 4268 10337 4268 10278 4245 10277
      4244 10275 4236 10275
TIME...MOT...LOC 0435Z 281DEG 32KT 4256 10319 

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

$$

Claycomb

2 follow-up statements

902 
WWUS55 KCYS 200449
SVSCYS

Severe Weather Statement
National Weather Service Cheyenne WY
1049 PM MDT Wed Jun 19 2019

NEC013-045-200515-
/O.CON.KCYS.TO.W.0013.000000T0000Z-190620T0515Z/
Box Butte NE-Dawes NE-
1049 PM MDT Wed Jun 19 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1115 PM MDT FOR
NORTHEASTERN BOX BUTTE AND SOUTHEASTERN DAWES COUNTIES...
        
At 1049 PM MDT, a severe thunderstorm capable of producing a tornado
was located near Box Butte Dam, or 19 miles southwest of Hay Springs,
moving east at 35 mph.

HAZARD...Tornado and ping pong ball size hail.

SOURCE...Weather spotters reported a funnel cloud.

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 thunderstorm will remain over mainly rural areas of
northeastern Box Butte and southeastern Dawes Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

If a tornado or other severe weather is spotted, report it to the
National Weather Service or your local nearest law enforcement agency
who will send your report. This act may save lives of others in the
path of dangerous weather.

&&

LAT...LON 4244 10315 4267 10315 4268 10278 4245 10277
      4244 10275 4236 10275
TIME...MOT...LOC 0449Z 281DEG 32KT 4254 10302 

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

$$

Claycomb

155 
WWUS55 KCYS 200509
SVSCYS

Severe Weather Statement
National Weather Service Cheyenne WY
1109 PM MDT Wed Jun 19 2019

NEC013-045-200518-
/O.EXP.KCYS.TO.W.0013.000000T0000Z-190620T0515Z/
Box Butte NE-Dawes NE-
1109 PM MDT Wed Jun 19 2019

...THE TORNADO WARNING FOR NORTHEASTERN BOX BUTTE AND SOUTHEASTERN
DAWES COUNTIES WILL EXPIRE AT 1115 PM MDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Cheyenne.

LAT...LON 4244 10315 4267 10315 4268 10278 4245 10277
      4244 10275 4236 10275
TIME...MOT...LOC 0508Z 281DEG 32KT 4251 10282 

$$

Claycomb

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 19, 9:23 PM MDT	Tornado Warning	CYS	Sioux	52 min
Jun 19, 9:37 PM MDT	Severe Thunderstorm Warning	CYS	Dawes	38 min
Jun 19, 9:57 PM MDT	Tornado Warning	CYS	Dawes, Sioux	48 min
Jun 19, 11:12 PM MDT	Severe Thunderstorm Warning	CYS	Dawes	33 min
Jun 19, 11:44 PM MDT	Severe Thunderstorm Warning	CYS	Dawes	17 min
Jun 20, 3:46 PM MDT	Special Weather Statement	CYS	Scotts Bluff	29 min
Jun 20, 3:51 PM MDT	Special Weather Statement	CYS	Sioux	39 min
Jun 20, 4:14 PM MDT	Special Weather Statement	CYS	Scotts Bluff	31 min
Jun 20, 4:28 PM MDT	Special Weather Statement	CYS	Dawes, Sioux	47 min
Jun 20, 4:32 PM MDT	Special Weather Statement	CYS	Sioux	43 min
Jun 20, 4:43 PM MDT	Special Weather Statement	CYS	Scotts Bluff	47 min
Jun 20, 4:52 PM MDT	Tornado Warning	CYS	Box Butte, Dawes, Sioux	23 min
Jun 20, 4:54 PM MDT	Severe Thunderstorm Warning	CYS	Box Butte, Morrill, Scotts Bluff, Sioux	51 min
Jun 20, 5:13 PM MDT	Severe Thunderstorm Warning	CYS	Box Butte, Dawes, Sioux	36 min
Jun 20, 5:35 PM MDT	Severe Thunderstorm Warning	CYS	Box Butte	40 min
Jun 20, 5:54 PM MDT	Special Weather Statement	CYS	Kimball	51 min

Nearby

Tornado Warnings in Nebraska, 2019 Every tornado warning in 2019 Tornadoes in 2019

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.