Alert archive / Nebraska / Tornado Warnings in 2009

Tornado Warning 60, NWS North Platte, NE

July 13, 2009Cherry County, Nebraska

NWS North Platte, NE issued this tornado warning at Jul 13, 2009, 6:30 PM MDT for Cherry County, Nebraska. It was in force for 60 min. 6 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 13, 2009, 6:30 PM MDT (00:30 UTC)
Expired: Jul 13, 2009, 7:30 PM MDT
In force: 60 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon

County Cherry County, NE

The radar

The North Platte radar (KLNX), 93 km from the middle of the area, began a volume at 00:33 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 13, 6:54 PM MDT	TSTM WND GST 60	Crookston, NE	VERY STRONG WIND GUSTS REPORTED BY THE PUBLIC.
Jul 13, 7:12 PM MDT	HAIL 0.75	Valentine, NE
Jul 13, 7:20 PM MDT	FUNNEL CLOUD	10 Sw Valentine, NE
Jul 13, 7:21 PM MDT	FUNNEL CLOUD	Valentine, NE	SPOTTER REPORTED GOOD ROTATION AND A BRIEF FUNNEL CLOUD. LOCATION WAS ON HIGHWAY 97 AT THE NIOBRARA BRIDGE.
Jul 13, 7:21 PM MDT	HAIL 1.25	Valentine, NE
Jul 13, 7:39 PM MDT	HAIL 1	8 Sw Valentine, 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
Jul 13, 4:52 PM MDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.5 hours before the alert went out and 185 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: 2857 J/kg
Mixed-layer CIN: -34 J/kg
Mixed-layer LCL: 1339 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 37 m²/s²
0-3 km storm-relative helicity: 207 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 13.2

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KLBF 140030
TORLBF
NEC031-140130-
/O.NEW.KLBF.TO.W.0060.090714T0030Z-090714T0130Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
730 PM CDT MON JUL 13 2009

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN CHERRY COUNTY IN NORTH CENTRAL NEBRASKA...
  THIS INCLUDES THE CITY OF VALENTINE...

* UNTIL 830 PM CDT/730 PM MDT/

* AT 729 PM CDT/629 PM MDT/...NATIONAL WEATHER SERVICE DOPPLER RADAR
  INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 13
  MILES NORTH OF CROOKSTON...OR 20 MILES NORTHWEST OF VALENTINE...
  MOVING SOUTHEAST AT 20 MPH.

* THE TORNADO WILL BE NEAR...
  CROOKSTON BY 800 PM CDT...
  VALENTINE BY 825 PM CDT...
  HIGHWAY 97 CROSSING THE NIOBRARA RIVER AND 8 MILES NORTH OF
  SCHLAGEL CREEK STATE WILDLIFE MANAGEMENT AREA BY 830 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
BASEBALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS. A TORNADO 
WAS SIGHTED WITH THIS STORM IN SOUTH DAKOTA.

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 MIDNIGHT CDT
TUESDAY MORNING/1100 PM MDT MONDAY EVENING/ FOR WESTERN NEBRASKA.

&&

LAT...LON 4298 10049 4263 10018 4252 10056 4265 10083
      4298 10095
TIME...MOT...LOC 0029Z 331DEG 19KT 4311 10077

$$

CDC

2 follow-up statements

000 
WWUS53 KLBF 140100
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
800 PM CDT MON JUL 13 2009

NEC031-140130-
/O.CON.KLBF.TO.W.0060.000000T0000Z-090714T0130Z/
CHERRY NE-
800 PM CDT MON JUL 13 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 830 PM CDT/730 PM MDT/
FOR NORTHEASTERN CHERRY COUNTY...

AT 759 PM CDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
SEVERE THUNDERSTORM WITH STRONG ROTATION.  THIS TORNADO WAS LOCATED
NEAR CROOKSTON...OR 13 MILES NORTHWEST OF VALENTINE...MOVING SOUTH AT
15 MPH.

THE TORNADO WILL BE NEAR...
  CROOKSTON AND 9 MILES WEST OF HIGHWAY 83 MILE MARKER 220 BY 815 PM
  CDT...
  6 MILES NORTHWEST OF HIGHWAY 97 CROSSING THE NIOBRARA RIVER AND 9
  MILES WEST OF VALENTINE BY 830 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW IF YOU WAIT
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.

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 MIDNIGHT CDT
TUESDAY MORNING/1100 PM MDT MONDAY EVENING/ FOR WESTERN NEBRASKA.

&&

LAT...LON 4298 10049 4263 10018 4252 10056 4265 10083
      4298 10095
TIME...MOT...LOC 0100Z 341DEG 12KT 4297 10077

$$

SPRINGER

000 
WWUS53 KLBF 140115
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
815 PM CDT MON JUL 13 2009

NEC031-140130-
/O.CON.KLBF.TO.W.0060.000000T0000Z-090714T0130Z/
CHERRY NE-
815 PM CDT MON JUL 13 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 830 PM CDT/730 PM MDT/
FOR NORTHEASTERN CHERRY COUNTY...

AT 811 PM CDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
SEVERE THUNDERSTORM WITH STRONG ROTATION.  THIS TORNADO WAS LOCATED
NEAR HIGHWAY 97 CROSSING THE NIOBRARA RIVER...OR 8 MILES WEST OF
VALENTINE...MOVING SOUTH AT 20 MPH.

THE TORNADO WILL BE NEAR...
  HIGHWAY 97 CROSSING THE NIOBRARA RIVER BY 820 PM CDT...
  SCHLAGEL CREEK STATE WILDLIFE MANAGEMENT AREA AND 8 MILES NORTH OF
  BIG ALKALI LAKE STATE WILDLIFE MANAGEMENT AREA BY 830 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW IF YOU WAIT
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.

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 MIDNIGHT CDT
TUESDAY MORNING/1100 PM MDT MONDAY EVENING/ FOR WESTERN NEBRASKA.

&&

LAT...LON 4298 10049 4263 10018 4252 10056 4265 10083
      4298 10095
TIME...MOT...LOC 0115Z 340DEG 19KT 4282 10070

$$

SPRINGER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 13, 6:34 PM MDT	Severe Thunderstorm Warning	LBF	Garden	41 min
Jul 13, 6:39 PM MDT	Severe Thunderstorm Warning	LBF	Brown, Cherry, Keya Paha	66 min
Jul 13, 7:07 PM MDT	Severe Thunderstorm Warning	LBF	Deuel, Keith	38 min
Jul 13, 7:13 PM MDT	Severe Thunderstorm Warning	LBF	Chase, Perkins	47 min
Jul 13, 7:15 PM MDT	Severe Thunderstorm Warning	LBF	Arthur, Garden, Grant, Keith	45 min
Jul 13, 7:24 PM MDT	Tornado Warning	LBF	Cherry	51 min
Jul 13, 8:01 PM MDT	Severe Thunderstorm Warning	LBF	Arthur, Keith, Lincoln, McPherson	44 min
Jul 13, 8:02 PM MDT	Severe Thunderstorm Warning	LBF	Cherry	26 min
Jul 13, 8:14 PM MDT	Tornado Warning	LBF	Cherry	46 min
Jul 13, 8:44 PM MDT	Severe Thunderstorm Warning	LBF	Brown, Cherry	29 min
Jul 13, 8:54 PM MDT	Tornado Warning	LBF	Cherry	51 min
Jul 13, 9:43 PM MDT	Tornado Warning	LBF	Cherry	32 min
Jul 13, 10:35 PM MDT	Severe Thunderstorm Warning	LBF	Brown, Keya Paha, Rock	55 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.