Alert archive / Nebraska / Tornado Warnings in 2009

Tornado Warning 68, NWS North Platte, NE

July 23, 20094 counties in Nebraska

NWS North Platte, NE issued this tornado warning at Jul 23, 2009, 6:14 PM MDT for 4 counties in Nebraska. It was in force for 61 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: Jul 23, 2009, 6:14 PM MDT (00:14 UTC)
Expired: Jul 23, 2009, 7:15 PM MDT
In force: 61 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon

Counties Arthur County, NE, Keith County, NE, Lincoln County, NE, McPherson County, NE

The radar

The North Platte radar (KLNX), 87 km from the middle of the area, began a volume at 00:16 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 23, 6:17 PM MDT	HAIL 1.75	17 W Tryon, NE	THE PUBLIC REPORTED GOLF BALL SIZE HAIL AND LARGER THAT STRIPPED TREES OF ALL THEIR LEAVES.
Jul 23, 6:37 PM MDT	HAIL 2.5	21 Nw Sutherland, NE	THE PUBLIC REPORTED TENNIS BALL SIZE HAIL WITH VERY STRONG WINDS IN EXCESS OF 60 MPH.
Jul 23, 7:03 PM MDT	HAIL 1.75	9 N Sutherland, NE	THE PUBLIC REPORTED HAIL UP TO THE SIZE OF GOLFBALLS.
Jul 23, 7:07 PM MDT	HAIL 1.75	Sutherland, NE	THE PUBLIC REPORTED HAIL AS LARGE AS GOLF BALLS OVER HIGHWAY 30 NEAR THE TOWN OF SUTHERLAND.

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
Jul 23, 2:30 PM MDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.2 hours before the alert went out and 60 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: 3065 J/kg
Mixed-layer CIN: -54 J/kg
Mixed-layer LCL: 1629 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 157 m²/s²
0-3 km storm-relative helicity: 418 m²/s²
Significant tornado parameter: 1.4
Supercell composite: 23.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WFUS53 KLBF 240014
TORLBF
NEC005-101-111-117-240115-
/O.NEW.KLBF.TO.W.0068.090724T0014Z-090724T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
714 PM CDT THU JUL 23 2009

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN KEITH COUNTY IN SOUTHWEST NEBRASKA...
  NORTHWESTERN LINCOLN COUNTY IN SOUTHWEST NEBRASKA...  
  FAR SOUTHEASTERN ARTHUR COUNTY IN WEST CENTRAL NEBRASKA...         
  SOUTHWESTERN MCPHERSON COUNTY IN WEST CENTRAL NEBRASKA...

* UNTIL 815 PM CDT/715 PM MDT/

* AT 713 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR SCHNICK
  LAKE...OR 16 MILES WEST OF TRYON...MOVING SOUTH AT 15 MPH.

* THE TORNADO WILL BE NEAR...
  9 MILES NORTH OF SARBEN BY 715 PM MDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
TENNIS BALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS UP TO 70 MPH.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT
THURSDAY EVENING/1000 PM MDT THURSDAY EVENING/ FOR WESTERN NEBRASKA.

&&

LAT...LON 4114 10095 4111 10148 4139 10151 4149 10147
      4160 10140 4160 10098
TIME...MOT...LOC 0013Z 003DEG 13KT 4151 10125

$$

BUTTTLER

3 follow-up statements

000 
WWUS53 KLBF 240032
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
732 PM CDT THU JUL 23 2009

NEC005-101-111-117-240115-
/O.CON.KLBF.TO.W.0068.000000T0000Z-090724T0115Z/
MCPHERSON NE-ARTHUR NE-LINCOLN NE-KEITH NE-
732 PM CDT THU JUL 23 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT/715 PM MDT/
FOR NORTHEASTERN KEITH...NORTHWESTERN LINCOLN...SOUTHEASTERN ARTHUR
AND SOUTHWESTERN MCPHERSON COUNTIES...

AT 726 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED 9 MILES SOUTH OF
DIAMOND BAR LAKE...OR 20 MILES SOUTHWEST OF TRYON...MOVING SOUTH AT
25 MPH.

THE TORNADO WILL BE NEAR...
  SARBEN AND 7 MILES WEST OF SUTHERLAND BY 800 PM CDT...
  PAXTON BY 705 PM MDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
BASEBALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS UP TO 80 MPH.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT
THURSDAY EVENING/1000 PM MDT THURSDAY EVENING/ FOR WESTERN NEBRASKA.

&&

LAT...LON 4114 10095 4111 10148 4139 10151 4149 10147
      4160 10140 4160 10098
TIME...MOT...LOC 0031Z 000DEG 24KT 4136 10126

$$

BUTTLER

000 
WWUS53 KLBF 240040
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
740 PM CDT THU JUL 23 2009

NEC005-101-111-117-240115-
/O.CON.KLBF.TO.W.0068.000000T0000Z-090724T0115Z/
MCPHERSON NE-ARTHUR NE-LINCOLN NE-KEITH NE-
740 PM CDT THU JUL 23 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT/715 PM MDT/
FOR NORTHEASTERN KEITH...NORTHWESTERN LINCOLN...SOUTHEASTERN ARTHUR
AND SOUTHWESTERN MCPHERSON COUNTIES...

AT 736 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED 12 MILES NORTH OF
SARBEN...OR 23 MILES SOUTHWEST OF TRYON...MOVING SOUTH AT 30 MPH.

IF YOU ARE LOCATED IN SARBEN...SEEK SHELTER IMMEDIATELY IN A 
REINFORCED STRUCTURE ON THE LOWEST FLOOR OR IN A BASEMENT

THE TORNADO WILL BE NEAR...
  SARBEN BY 655 PM MDT...
  7 MILES WEST OF SUTHERLAND BY 800 PM CDT...
  PAXTON BY 705 PM MDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
BASEBALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS UP TO 80 MPH.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST
DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT
THURSDAY EVENING/1000 PM MDT THURSDAY EVENING/ FOR WESTERN NEBRASKA.

&&

LAT...LON 4114 10095 4111 10148 4139 10151 4149 10147
      4160 10140 4160 10098
TIME...MOT...LOC 0038Z 359DEG 28KT 4131 10126

$$

BUTTLER

000 
WWUS53 KLBF 240056
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
756 PM CDT THU JUL 23 2009

NEC005-101-111-117-240115-
/O.CON.KLBF.TO.W.0068.000000T0000Z-090724T0115Z/
MCPHERSON NE-ARTHUR NE-LINCOLN NE-KEITH NE-
756 PM CDT THU JUL 23 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT/715 PM MDT/
FOR NORTHEASTERN KEITH...NORTHWESTERN LINCOLN...SOUTHEASTERN ARTHUR
AND SOUTHWESTERN MCPHERSON COUNTIES...

AT 754 PM CDT...A TORNADO WAS REPORTED.  THIS TORNADO WAS LOCATED
NEAR SARBEN...OR 24 MILES WEST OF NORTH PLATTE...MOVING SOUTH AT 35
MPH.

THE TORNADO WILL BE NEAR...
  6 MILES EAST OF PAXTON BY 700 PM MDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
BASEBALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS OF 70 MPH.

DO NOT USE HIGHWAY OVERPASSES FOR SHELTER. OVERPASSES DO NOT PROVIDE
PROTECTION FROM TORNADIC WINDS. VEHICLES STOPPED UNDER BRIDGES BLOCK
TRAFFIC AND PREVENT PEOPLE FROM GETTING OUT OF THE STORMS PATH AND
TO SHELTER. IF YOU CANNOT DRIVE AWAY FROM THE TORNADO...GET OUT OF
YOUR VEHICLE AND LIE FLAT IN A DITCH AS A LAST RESORT.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT
THURSDAY EVENING/1000 PM MDT THURSDAY EVENING/ FOR WESTERN NEBRASKA.

&&

LAT...LON 4114 10095 4111 10148 4139 10151 4149 10147
      4160 10140 4160 10098
TIME...MOT...LOC 0056Z 000DEG 30KT 4117 10123

$$

BUTTLER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 23, 6:37 PM MDT	Severe Thunderstorm Warning	LBF	Rock	38 min
Jul 23, 6:41 PM MDT	Severe Thunderstorm Warning	LBF	Holt, Rock	49 min
Jul 23, 7:14 PM MDT	Severe Thunderstorm Warning	LBF	Keith, Lincoln, Perkins	61 min
Jul 23, 7:16 PM MDT	Severe Thunderstorm Warning	LBF	Rock	44 min
Jul 23, 7:20 PM MDT	Severe Thunderstorm Warning	LBF	Brown, Keya Paha, Rock	40 min
Jul 23, 8:01 PM MDT	Severe Thunderstorm Warning	LBF	Brown, Rock	44 min
Jul 23, 8:06 PM MDT	Severe Thunderstorm Warning	LBF	Frontier	54 min

Nearby

Tornado Warnings in Nebraska, 2009 Every tornado warning in 2009 Tornadoes in 2009

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.