Alert archive / Nebraska / Tornado Warnings in 2016

Tornado Warning 26, NWS North Platte, NE

September 4, 2016Logan County, McPherson County, Nebraska

NWS North Platte, NE issued this tornado warning at Sep 4, 2016, 8:53 PM CDT for Logan County, McPherson County, Nebraska. It was in force for 37 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: Sep 4, 2016, 8:53 PM CDT (01:53 UTC)
Expired: Sep 4, 2016, 9:30 PM CDT
In force: 37 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.5 in

Counties Logan County, NE, McPherson County, NE

The radar

The North Platte radar (KLNX), 47 km from the middle of the area, began a volume at 01:54 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
Sep 4, 8:58 PM CDT	FUNNEL CLOUD	5 Ne Ringgold, NE	TIME ESTIMATE
Sep 4, 9:08 PM CDT	FUNNEL CLOUD	6 Nw Stapleton, NE	TIME AND LOCATION ESTIMATED
Sep 4, 9:12 PM CDT	TORNADO	10 Nnw Stapleton, NE	BRIEF TORNADO 10 MILES NORTH NORTHWEST OF STAPLETON. REPORTED BY STORM CHASERS LOCATED APPROXIMATELY 2 MILES NORTH OF STAPLETON ON HIGHWAY 83 LOOKING WEST.
Sep 4, 9:13 PM CDT	HAIL 1.25	7 Nw Stapleton, 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.

Issued	Product	Office	Lasted
Sep 4, 3:24 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 1.9 hours before the alert went out and 46 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: 2563 J/kg
Mixed-layer CIN: -22 J/kg
Mixed-layer LCL: 1408 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 118 m²/s²
0-3 km storm-relative helicity: 237 m²/s²
Significant tornado parameter: 1.5
Supercell composite: 13.6

Open this sounding in Storm Lab

The text

As transmitted.

699 
WFUS53 KLBF 050153
TORLBF
NEC113-117-050230-
/O.NEW.KLBF.TO.W.0026.160905T0153Z-160905T0230Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
853 PM CDT SUN SEP 4 2016

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CENTRAL MCPHERSON COUNTY IN WEST CENTRAL NEBRASKA...
  NORTHWESTERN LOGAN COUNTY IN WEST CENTRAL NEBRASKA...

* UNTIL 930 PM CDT
    
* AT 852 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED OVER RINGGOLD...OR 8 MILES EAST OF
  TRYON...MOVING NORTHEAST AT 40 MPH.

  HAZARD...TORNADO AND PING PONG 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
  EAST CENTRAL MCPHERSON AND NORTHWESTERN LOGAN COUNTIES.

THIS INCLUDES HIGHWAY 92 BETWEEN MILE MARKERS 209 AND 216.
 
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!

&&

LAT...LON 4148 10082 4153 10088 4170 10051 4152 10041
TIME...MOT...LOC 0152Z 243DEG 33KT 4151 10079 

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

$$

JACOBS

1 follow-up statement

425 
WWUS53 KLBF 050211
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
911 PM CDT SUN SEP 4 2016

NEC117-050221-
/O.CAN.KLBF.TO.W.0026.000000T0000Z-160905T0230Z/
MCPHERSON NE-
911 PM CDT SUN SEP 4 2016

...THE TORNADO WARNING FOR EAST CENTRAL MCPHERSON COUNTY IS
CANCELLED...
    
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT
OF THE WARNED AREA THEREFORE THE WARNING HAS BEEN CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT FOR
WEST CENTRAL NEBRASKA.

LAT...LON 4153 10065 4159 10072 4161 10071 4170 10051
      4152 10041
TIME...MOT...LOC 0211Z 243DEG 33KT 4159 10058 

$$

NEC113-050230-
/O.CON.KLBF.TO.W.0026.000000T0000Z-160905T0230Z/
LOGAN NE-
911 PM CDT SUN SEP 4 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 930 PM CDT FOR
NORTHWESTERN LOGAN COUNTY...
        
AT 911 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 8 MILES NORTHWEST OF STAPLETON...MOVING NORTHEAST AT 40
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
NORTHWESTERN LOGAN COUNTY.

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!

&&

LAT...LON 4153 10065 4159 10072 4161 10071 4170 10051
      4152 10041
TIME...MOT...LOC 0211Z 243DEG 33KT 4159 10058 

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

$$

JACOBS

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 4, 7:26 PM CDT	Severe Thunderstorm Warning	LBF	Cherry, Grant, Hooker	49 min
Sep 4, 7:36 PM CDT	Special Weather Statement	LBF	Blaine	39 min
Sep 4, 8:13 PM CDT	Severe Thunderstorm Warning	LBF	Blaine	32 min
Sep 4, 8:19 PM CDT	Special Weather Statement	LBF	Cherry	41 min
Sep 4, 8:36 PM CDT	Special Weather Statement	LBF	Logan, Thomas	39 min
Sep 4, 8:39 PM CDT	Severe Thunderstorm Warning	LBF	Logan, McPherson, Thomas	51 min
Sep 4, 8:43 PM CDT	Severe Thunderstorm Warning	LBF	Blaine, Brown	36 min
Sep 4, 9:14 PM CDT	Severe Thunderstorm Warning	LBF	McPherson	46 min
Sep 4, 9:29 PM CDT	Severe Thunderstorm Warning	LBF	Blaine, Custer, Logan, Thomas	46 min
Sep 4, 9:30 PM CDT	Special Weather Statement	LBF	Rock	45 min
Sep 4, 9:47 PM CDT	Special Weather Statement	LBF	Thomas	43 min
Sep 4, 10:23 PM CDT	Special Weather Statement	LBF	Blaine	37 min
Sep 4, 10:34 PM CDT	Special Weather Statement	LBF	Boyd, Holt	41 min
Sep 4, 11:08 PM CDT	Special Weather Statement	LBF	Garfield, Loup, Wheeler	52 min
Sep 4, 11:26 PM CDT	Special Weather Statement	LBF	Holt	49 min
Sep 5, 6:35 PM CDT	Severe Thunderstorm Warning	LBF	Frontier, Hayes	40 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.