Alert archive / Nebraska / Tornado Warnings in 2018

Tornado Warning 5, NWS North Platte, NE

June 17, 2018Keith County, Nebraska

NWS North Platte, NE issued this tornado warning at Jun 17, 2018, 3:06 PM MDT for Keith County, Nebraska. It was in force for 39 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, 3:06 PM MDT (21:06 UTC)
Expired
Jun 17, 2018, 3:45 PM MDT
In force
39 min
Issued by
NWS North Platte, NE
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.75 in

County Keith County, NE

The radar

The North Platte radar (KLNX), 135 km from the middle of the area, began a volume at 21:07 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, 3:10 PM MDTTORNADO11 Nw Ogallala, NEDELAYED REPORT. TORNADO REPORTED AS ON THE GROUND FOR APPROXIMATELY 5 TO 10 MINS SHORTLY AFTER 2100Z.
Jun 17, 3:25 PM MDTTSTM WND GST 642 N Kingsley Dam, NE
Jun 17, 3:25 PM MDTTSTM WND GST 705 Wnw Keystone, NE
Jun 17, 3:25 PM MDTHAIL 1.752 N Kingsley Dam, NEHAIL RANGING FROM NICKEL TO GOLF BALL SIZE

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, 9.1 hours before the alert went out and 109 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.

209 
WFUS53 KLBF 172106
TORLBF
NEC101-172145-
/O.NEW.KLBF.TO.W.0005.180617T2106Z-180617T2145Z/

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

The National Weather Service in North Platte has issued a

* Tornado Warning for...
  Northwestern Keith County in southwestern Nebraska...

* Until 345 PM MDT.
    
* At 306 PM MDT, a severe thunderstorm capable of producing a tornado
  was located near Lemoyne, or 9 miles northwest of Ogallala, moving
  northeast 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 dangerous storm will be near...
  Ogallala and Lemoyne around 315 PM MDT.
  Kingsley Dam around 325 PM MDT.

Other locations impacted by this tornadic thunderstorm include Eagle
Gulch Campground, Ruthon, Megeath, Belmar, Otter Creek Campground and
Lake View Campground.

This includes the following highways...
 Highway 61 between mile markers 89 and 109.
 Highway 92 between mile markers 122 and 138.

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 4124 10206 4137 10197 4139 10159 4117 10160
      4106 10206
TIME...MOT...LOC 2106Z 237DEG 21KT 4123 10184 

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

$$

JWS
3 follow-up statements
818 
WWUS53 KLBF 172118
SVSLBF

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

NEC101-172145-
/O.CON.KLBF.TO.W.0005.000000T0000Z-180617T2145Z/
Keith NE-
318 PM MDT SUN JUN 17 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 345 PM MDT FOR
NORTHWESTERN KEITH COUNTY...
    
At 318 PM MDT, a confirmed tornado was located near Kingsley Dam, or
9 miles north of Ogallala, moving northeast at 30 mph.

HAZARD...Damaging tornado and golf ball size hail.

SOURCE...Weather spotters confirmed tornado.

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
northwestern Keith County, including the following locations... Eagle
Gulch Campground, Ruthon, Megeath, Belmar, Otter Creek Campground and
Lake View Campground.

This includes the following highways...
 Highway 61 between mile markers 89 and 109.
 Highway 92 between mile markers 122 and 138.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If on or near Lake McConaughy, get away from the water and move to 
safe shelter immediately. If you can hear thunder, you are close 
enough to be struck by lightning. Severe thunderstorms can produce 
large capsizing waves, even on small bodies of water. Move into dock 
and seek safe shelter now! Do not be caught on the water in a 
thunderstorm.

&&

LAT...LON 4124 10206 4137 10197 4139 10159 4117 10160
      4106 10206
TIME...MOT...LOC 2118Z 235DEG 27KT 4127 10171 

TORNADO...OBSERVED
HAIL...1.75IN

$$

JWS
538 
WWUS53 KLBF 172122
SVSLBF

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

NEC101-172145-
/O.CON.KLBF.TO.W.0005.000000T0000Z-180617T2145Z/
Keith NE-
322 PM MDT SUN JUN 17 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 345 PM MDT FOR
NORTHWESTERN KEITH COUNTY...
    
At 322 PM MDT, a confirmed tornado was located near Kingsley Dam, or
9 miles north of Ogallala, moving northeast at 25 mph.

HAZARD...Damaging tornado and golf ball size hail.

SOURCE...Weather spotters confirmed tornado.

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
northwestern Keith County, including the following locations... Eagle
Gulch Campground, Ruthon, Megeath, Belmar, Otter Creek Campground and
Lake View Campground.

This includes the following highways...
 Highway 61 between mile markers 89 and 109.
 Highway 92 between mile markers 122 and 138.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If on or near Lake McConaughy, get away from the water and move to 
safe shelter immediately. If you can hear thunder, you are close 
enough to be struck by lightning. Severe thunderstorms can produce 
large capsizing waves, even on small bodies of water. Move into dock 
and seek safe shelter now! Do not be caught on the water in a 
thunderstorm.

&&

LAT...LON 4124 10206 4137 10197 4139 10159 4117 10160
      4106 10206
TIME...MOT...LOC 2122Z 240DEG 23KT 4126 10169 

TORNADO...OBSERVED
HAIL...1.75IN

$$

JWS
389 
WWUS53 KLBF 172129
SVSLBF

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

NEC101-172145-
/O.CON.KLBF.TO.W.0005.000000T0000Z-180617T2145Z/
Keith NE-
329 PM MDT SUN JUN 17 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 345 PM MDT FOR
NORTHWESTERN KEITH COUNTY...
    
At 328 PM MDT, a severe thunderstorm capable of producing a tornado
was located near Kingsley Dam, or 11 miles north of Ogallala, moving
northeast at 25 mph.

HAZARD...Tornado and half dollar 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
northwestern Keith County, including the following locations...
Belmar, Otter Creek Campground and Lake View Campground.

This includes the following highways...
 Highway 61 between mile markers 89 and 109.
 Highway 92 between mile markers 124 and 138.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 4125 10196 4137 10197 4139 10159 4117 10160
      4113 10185
TIME...MOT...LOC 2128Z 239DEG 23KT 4128 10165 

TORNADO...RADAR INDICATED
HAIL...1.25IN

$$

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, 2:08 PM MDTTornado WarningLBFDeuel52 min
Jun 17, 2:30 PM MDTTornado Warning Tornado observedLBFDeuel, Keith45 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.