Alert archive / Nebraska / Tornado Warnings in 2018

Tornado Warning 3, NWS North Platte, NE

June 17, 2018Deuel County, Nebraska

NWS North Platte, NE issued this tornado warning at Jun 17, 2018, 2:08 PM MDT for Deuel County, Nebraska. It was in force for 52 min. 4 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 17, 2018, 2:08 PM MDT (20:08 UTC)
Expired
Jun 17, 2018, 3:00 PM MDT
In force
52 min
Issued by
NWS North Platte, NE
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.75 in

County Deuel County, NE

The radar

The North Platte radar (KLNX), 175 km from the middle of the area, began a volume at 20:12 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
Jun 17, 2:28 PM MDTTORNADO9 Wsw Big Springs, NEROPE TORNADO SPOTTED ABOUT 9 MILES WEST OF BIG SPRINGS
Jun 17, 2:34 PM MDTTSTM WND DMG4 Wsw Big Springs, NEHEALTHY TREES COMPLETELY UPROOTED.
Jun 17, 2:34 PM MDTTSTM WND GST 824 Wsw Big Springs, NEMEASURED ON DAVIS WEATHER STATION. GUST DURATION ESTIMATED AT 4 MINUTES.
Jun 17, 2:35 PM MDTTSTM WND DMG6 Ese Chappell, NECAMPER FLIPPED ALONG I-80 NEAR MM 92

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
Jun 17, 1:35 PM MDTTornado WatchSPC7 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 8.1 hours before the alert went out and 145 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, N. Platte/Lee Bi, NE at 12:00Z on 2018-06-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 74 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, N. Platte/Lee Bi, NE at 12:00Z on 2018-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 54 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
74 J/kg
Mixed-layer CIN
-134 J/kg
Mixed-layer LCL
840 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
54 m²/s²
0-3 km storm-relative helicity
-1 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

624 
WFUS53 KLBF 172008
TORLBF
NEC049-172100-
/O.NEW.KLBF.TO.W.0003.180617T2008Z-180617T2100Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service North Platte NE
208 PM MDT SUN JUN 17 2018

The National Weather Service in North Platte has issued a

* Tornado Warning for...
  Southeastern Deuel County in the Panhandle of Nebraska...

* Until 300 PM MDT.
    
* At 208 PM MDT, a severe thunderstorm capable of producing a tornado
  was located over Ovid, or near Julesburg, moving east at 10 mph.

  HAZARD...Tornado and golf 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...
  Barton around 300 PM MDT.

Other locations impacted by this tornadic thunderstorm include
Goldeneye State Wildlife Management Area.

This includes Interstate 80 in Nebraska between mile markers 87 and
105.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

This Tornado Warning replaces the Severe Thunderstorm Warning issued
for the same area.

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 4115 10240 4116 10207 4100 10212 4100 10246
      4101 10249
TIME...MOT...LOC 2008Z 252DEG 9KT 4096 10235 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

JWS
2 follow-up statements
528 
WWUS53 KLBF 172016
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
216 PM MDT SUN JUN 17 2018

NEC049-172100-
/O.CON.KLBF.TO.W.0003.000000T0000Z-180617T2100Z/
Deuel NE-
216 PM MDT SUN JUN 17 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 300 PM MDT FOR
SOUTHEASTERN DEUEL COUNTY...
    
At 216 PM MDT, a severe thunderstorm capable of producing a tornado
was located over Julesburg, moving northeast at 30 mph.

HAZARD...Tornado and golf 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...
  Barton around 225 PM MDT.

Other locations impacted by this tornadic thunderstorm include
Goldeneye State Wildlife Management Area.

This includes Interstate 80 in Nebraska between mile markers 87 and
105.
 
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.

&&

LAT...LON 4115 10240 4116 10207 4100 10212 4100 10246
      4101 10249
TIME...MOT...LOC 2016Z 242DEG 26KT 4103 10226 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

JWS
931 
WWUS53 KLBF 172023
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
223 PM MDT SUN JUN 17 2018

NEC049-172100-
/O.CON.KLBF.TO.W.0003.000000T0000Z-180617T2100Z/
Deuel NE-
223 PM MDT SUN JUN 17 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 300 PM MDT FOR
SOUTHEASTERN DEUEL COUNTY...
    
At 223 PM MDT, a severe thunderstorm capable of producing a tornado
was located over Barton, or near Julesburg, moving east at 25 mph.

HAZARD...Tornado and golf 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 tornadic thunderstorm will remain over mainly rural areas of
southeastern Deuel County, including the following locations...
Goldeneye State Wildlife Management Area.

This includes Interstate 80 in Nebraska between mile markers 87 and
105.
 
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.

&&

LAT...LON 4115 10240 4116 10207 4100 10212 4100 10246
      4101 10249
TIME...MOT...LOC 2023Z 249DEG 23KT 4103 10221 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

JWS

The office that day

Everything else NWS North Platte, NE issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 16, 6:32 PM MDTSpecial Weather StatementLBFCherry28 min
Jun 16, 6:48 PM MDTAreal Flood AdvisoryLBFCherry, Sheridan3 hr
Jun 16, 7:46 PM MDTAreal Flood AdvisoryLBFSheridan3 hr
Jun 17, 1:13 AM MDTFlash Flood WatchLBFCherry, Sheridan25 hr
Jun 17, 1:53 PM MDTSevere Thunderstorm WarningLBFDeuel37 min
Jun 17, 2:30 PM MDTTornado Warning Tornado observedLBFDeuel, Keith45 min
Jun 17, 3:06 PM MDTTornado WarningLBFKeith39 min
Jun 17, 3:32 PM MDTTornado WarningLBFArthur, Keith, McPherson43 min
Jun 17, 3:59 PM MDTSpecial Weather StatementLBFLincoln46 min
Jun 17, 4:07 PM MDTTornado Warning Tornado observedLBFKeith, Lincoln, McPherson38 min
Jun 17, 4:16 PM MDTSevere Thunderstorm WarningLBFLogan44 min
Jun 17, 4:29 PM MDTSevere Thunderstorm WarningLBFLincoln, Logan, McPherson46 min
Jun 17, 4:40 PM MDTTornado WarningLBFLogan, McPherson50 min
Jun 17, 4:47 PM MDTSevere Thunderstorm WarningLBFBlaine, Custer, Logan, Thomas43 min
Jun 17, 5:29 PM MDTSevere Thunderstorm WarningLBFBlaine, Brown33 min
Jun 17, 5:48 PM MDTSevere Thunderstorm WarningLBFBlaine, Loup, Rock42 min
Jun 17, 5:53 PM MDTSpecial Weather StatementLBFHolt52 min

Nearby

Tornado Warnings in Nebraska, 2018Every tornado warning in 2018Tornadoes in 2018

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.