Alert archive / Nebraska / Tornado Warnings in 2020

Tornado Warning 4, NWS North Platte, NE

June 8, 2020Blaine County, Custer County, Nebraska

NWS North Platte, NE issued this tornado warning at Jun 8, 2020, 6:54 PM CDT for Blaine County, Custer County, Nebraska. It was in force for 51 min. 2 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 8, 2020, 6:54 PM CDT (23:54 UTC)
Expired
Jun 8, 2020, 7:45 PM CDT
In force
51 min
Issued by
NWS North Platte, NE
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.75 in

Counties Blaine County, NE, Custer County, NE

The radar

The North Platte radar (KLNX), 59 km from the middle of the area, began a volume at 23:56 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 8, 7:46 PM CDTTORNADO3 Nnw Milburn, NEDELAYED REPORT VIA EMAIL
Jun 8, 7:52 PM CDTFUNNEL CLOUD7 W Merna, NE

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 8, 5:56 PM CDTSevere Thunderstorm WatchSPC9 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.9 hours before the alert went out and 79 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 2020-06-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 204 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 2020-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 85 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
204 J/kg
Mixed-layer CIN
-320 J/kg
Mixed-layer LCL
1068 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
85 m²/s²
0-3 km storm-relative helicity
161 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

640 
WFUS53 KLBF 082354
TORLBF
NEC009-041-090045-
/O.NEW.KLBF.TO.W.0004.200608T2354Z-200609T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service North Platte NE
654 PM CDT Mon Jun 8 2020

The National Weather Service in North Platte has issued a

* Tornado Warning for...
  Northwestern Custer County in central Nebraska...
  Southern Blaine County in north central Nebraska...

* Until 745 PM CDT.
    
* At 654 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Arnold, or 19 miles east of Stapleton, 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...
  Dunning around 745 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Milburn Diversion Dam State Wildlife Management Area, Linscott and
Pleasant Hill.

This includes the following highways...
 Highway 2 between mile markers 234 and 260.
 Highway 92 between mile markers 252 and 266.

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 4144 10021 4192 10016 4191 9969 4190 9969
      4139 9993
TIME...MOT...LOC 2354Z 202DEG 21KT 4151 10013 

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

$$

JWS
3 follow-up statements
308 
WWUS53 KLBF 090002
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
702 PM CDT Mon Jun 8 2020

NEC009-041-090045-
/O.CON.KLBF.TO.W.0004.000000T0000Z-200609T0045Z/
Custer NE-Blaine NE-
702 PM CDT Mon Jun 8 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR
NORTHWESTERN CUSTER AND SOUTHERN BLAINE COUNTIES...
    
At 702 PM CDT, a severe thunderstorm capable of producing a tornado
was located 9 miles northeast of Arnold, or 21 miles east of
Stapleton, moving northeast at 15 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...
  Anselmo around 750 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Milburn Diversion Dam State Wildlife Management Area, Linscott and
Pleasant Hill.

This includes the following highways...
 Highway 2 between mile markers 234 and 260.
 Highway 92 between mile markers 252 and 266.

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 4144 10021 4192 10016 4191 9969 4190 9969
      4139 9993
TIME...MOT...LOC 0002Z 223DEG 13KT 4155 10011 

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

$$

JWS
672 
WWUS53 KLBF 090013
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
713 PM CDT Mon Jun 8 2020

NEC009-041-090045-
/O.CON.KLBF.TO.W.0004.000000T0000Z-200609T0045Z/
Custer NE-Blaine NE-
713 PM CDT Mon Jun 8 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR
NORTHWESTERN CUSTER AND SOUTHERN BLAINE COUNTIES...
    
At 713 PM CDT, a confirmed tornado was located 8 miles west of
Anselmo, or 23 miles south of Brewster, moving northeast at 15 mph.

HAZARD...Damaging tornado and ping pong ball size hail.

SOURCE...Public 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 tornado will be near...
  Anselmo around 730 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Milburn Diversion Dam State Wildlife Management Area and Linscott.

This includes Highway 2 between mile markers 234 and 259.
 
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 4152 10019 4192 10016 4191 9969 4190 9969
      4149 9990
TIME...MOT...LOC 0013Z 210DEG 13KT 4162 10004 

TORNADO...OBSERVED
HAIL...1.50IN

$$

JWS
495 
WWUS53 KLBF 090032
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
732 PM CDT Mon Jun 8 2020

NEC009-041-090045-
/O.CON.KLBF.TO.W.0004.000000T0000Z-200609T0045Z/
Custer NE-Blaine NE-
732 PM CDT Mon Jun 8 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR
NORTHWESTERN CUSTER AND SOUTHERN BLAINE COUNTIES...
    
At 731 PM CDT, a severe thunderstorm capable of producing a tornado
was located 7 miles northwest of Anselmo, or 15 miles south of
Brewster, 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 Custer and southern Blaine Counties, including the
following locations... Milburn Diversion Dam State Wildlife
Management Area and Linscott.

This includes Highway 2 between mile markers 234 and 259.
 
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 4152 10019 4192 10016 4191 9969 4190 9969
      4149 9990
TIME...MOT...LOC 0031Z 210DEG 24KT 4171 9994 

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 7, 7:03 PM CDTSpecial Weather StatementLBFCherry42 min
Jun 7, 7:07 PM CDTSevere Thunderstorm WarningLBFCherry38 min
Jun 7, 7:44 PM CDTSevere Thunderstorm WarningLBFCherry46 min
Jun 7, 7:48 PM CDTSpecial Weather StatementLBFGrant42 min
Jun 8, 2:33 PM CDTHigh Wind WarningLBFArthur, Chase, Custer, Deuel, Frontier, Garden and 6 more30 hr
Jun 8, 6:03 PM CDTSevere Thunderstorm WarningLBFCuster, Lincoln, Logan42 min
Jun 8, 6:04 PM CDTSpecial Weather StatementLBFBlaine41 min
Jun 8, 6:25 PM CDTSpecial Weather StatementLBFLincoln50 min
Jun 8, 6:37 PM CDTSpecial Weather StatementLBFBlaine, Rock53 min
Jun 8, 6:38 PM CDTSevere Thunderstorm WarningLBFLincoln52 min
Jun 8, 6:42 PM CDTSevere Thunderstorm WarningLBFBlaine, Custer48 min
Jun 8, 6:44 PM CDTSpecial Weather StatementLBFBrown46 min
Jun 8, 6:45 PM CDTSpecial Weather StatementLBFThomas45 min
Jun 8, 6:56 PM CDTTornado WarningLBFLincoln49 min
Jun 8, 6:58 PM CDTSevere Thunderstorm WarningLBFBrown, Rock47 min

Nearby

Tornado Warnings in Nebraska, 2020Every tornado warning in 2020Tornadoes in 2020

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.