Alert archive / Nebraska / Tornado Warnings in 2016

Tornado Warning 24, NWS North Platte, NE

July 22, 2016Arthur County, Keith County, Nebraska

NWS North Platte, NE issued this tornado warning at Jul 22, 2016, 8:20 PM MDT for Arthur County, Keith County, Nebraska. It was in force for 25 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: Jul 22, 2016, 8:20 PM MDT (02:20 UTC)
Expired: Jul 22, 2016, 8:45 PM MDT
In force: 25 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

Counties Arthur County, NE, Keith County, NE

The radar

The North Platte radar (KLNX), 120 km from the middle of the area, began a volume at 02:22 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

Time	Report	Where	Remark
Jul 22, 8:20 PM MDT	TSTM WND GST 60	18 N Ogallala, NE	REPORT OF 60 MPH WINDS AND 1.90 INCHES OF RAIN.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 2.3 hours before the alert went out and 103 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: 5536 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 1380 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 23 m²/s²
0-3 km storm-relative helicity: 49 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 3.1

Open this sounding in Storm Lab

The text

As transmitted.

971 
WFUS53 KLBF 230220
TORLBF
NEC005-101-230245-
/O.NEW.KLBF.TO.W.0024.160723T0220Z-160723T0245Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
820 PM MDT FRI JUL 22 2016

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTH CENTRAL ARTHUR COUNTY IN WEST CENTRAL NEBRASKA...
  NORTH CENTRAL KEITH COUNTY IN SOUTHWESTERN NEBRASKA...

* UNTIL 845 PM MDT

* AT 820 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR LEMOYNE...OR 16 MILES SOUTHWEST OF
  ARTHUR...MOVING EAST AT 15 MPH.

  HAZARD...TORNADO AND QUARTER SIZE HAIL. 

  SOURCE...WEATHER SPOTTERS REPORTED 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
  SOUTH CENTRAL ARTHUR AND NORTH CENTRAL KEITH COUNTIES.

THIS INCLUDES HIGHWAY 61 BETWEEN MILE MARKERS 107 AND 112.
 
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 4131 10185 4141 10187 4144 10182 4139 10157
TIME...MOT...LOC 0220Z 248DEG 13KT 4136 10183 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

CDC

2 follow-up statements

249 
WWUS53 KLBF 230228
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
828 PM MDT FRI JUL 22 2016

NEC005-101-230245-
/O.CON.KLBF.TO.W.0024.000000T0000Z-160723T0245Z/
ARTHUR NE-KEITH NE-
828 PM MDT FRI JUL 22 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM MDT FOR SOUTH
CENTRAL ARTHUR AND NORTH CENTRAL KEITH COUNTIES...
    
AT 828 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR LEMOYNE...OR 14 MILES SOUTHWEST OF ARTHUR...MOVING
NORTHEAST AT 30 MPH.

HAZARD...TORNADO. 

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
SOUTH CENTRAL ARTHUR AND NORTH CENTRAL KEITH COUNTIES.

THIS INCLUDES HIGHWAY 61 BETWEEN MILE MARKERS 107 AND 112.
 
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 4131 10185 4141 10187 4144 10182 4139 10157
TIME...MOT...LOC 0228Z 246DEG 27KT 4138 10181 

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

$$

CDC

642 
WWUS53 KLBF 230242
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
842 PM MDT FRI JUL 22 2016

NEC005-101-230252-
/O.EXP.KLBF.TO.W.0024.000000T0000Z-160723T0245Z/
ARTHUR NE-KEITH NE-
842 PM MDT FRI JUL 22 2016

...THE TORNADO WARNING FOR SOUTH CENTRAL ARTHUR AND NORTH CENTRAL
KEITH COUNTIES WILL EXPIRE AT 845 PM MDT...
    
THE TORNADO THREAT HAS DIMINISHED AND THE TORNADO WARNING HAS BEEN
CANCELLED. HOWEVER...LARGE HAIL AND DAMAGING WINDS REMAIN LIKELY AND
A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR THE AREA.
HOWEVER SMALL HAIL AND GUSTY WINDS ARE STILL POSSIBLE WITH THIS
THUNDERSTORM.

LAT...LON 4131 10185 4141 10187 4144 10182 4139 10157
TIME...MOT...LOC 0240Z 248DEG 13KT 4138 10181 

$$

CDC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 22, 6:08 PM MDT	Special Weather Statement	LBF	Garden	52 min
Jul 22, 6:32 PM MDT	Special Weather Statement	LBF	Garden	43 min
Jul 22, 6:55 PM MDT	Flash Flood Warning	LBF	Garden	3 hr
Jul 22, 7:11 PM MDT	Special Weather Statement	LBF	Keith	49 min
Jul 22, 7:15 PM MDT	Severe Thunderstorm Warning	LBF	Deuel, Garden	45 min
Jul 22, 7:23 PM MDT	Severe Thunderstorm Warning	LBF	Keith	37 min
Jul 22, 7:45 PM MDT	Tornado Warning	LBF	Arthur	45 min
Jul 22, 8:10 PM MDT	Special Weather Statement	LBF	Keith	50 min
Jul 22, 8:18 PM MDT	Severe Thunderstorm Warning	LBF	Arthur, Keith	42 min
Jul 22, 8:54 PM MDT	Severe Thunderstorm Warning	LBF	Arthur, Keith, McPherson	39 min
Jul 22, 9:19 PM MDT	Special Weather Statement	LBF	Arthur, Chase, Deuel, Keith, McPherson, Perkins	56 min
Jul 22, 9:43 PM MDT	Severe Thunderstorm Warning	LBF	Hooker, Logan, McPherson, Thomas	47 min
Jul 22, 10:10 PM MDT	Special Weather Statement	LBF	Arthur, Chase, Hayes, Keith, Lincoln, Logan and 3 more	65 min
Jul 22, 10:26 PM MDT	Severe Thunderstorm Warning	LBF	Blaine, Logan, Thomas	49 min
Jul 22, 11:11 PM MDT	Special Weather Statement	LBF	Chase, Custer, Frontier, Hayes, Lincoln, Logan and 1 more	64 min

Nearby

Tornado Warnings in Nebraska, 2016 Every tornado warning in 2016 Tornadoes in 2016

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.