Alert archive / Nebraska / Tornado Warnings in 2009

Tornado Warning 64, NWS North Platte, NE

July 13, 2009Cherry County, Nebraska

NWS North Platte, NE issued this tornado warning at Jul 13, 2009, 9:43 PM MDT for Cherry County, Nebraska. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 13, 2009, 9:43 PM MDT (03:43 UTC)
Expired: Jul 13, 2009, 10:15 PM MDT
In force: 32 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon

County Cherry County, NE

The radar

The North Platte radar (KLNX), 75 km from the middle of the area, began a volume at 03:46 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.

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, 3.7 hours before the alert went out and 165 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 140343
TORLBF
NEC031-140415-
/O.NEW.KLBF.TO.W.0064.090714T0343Z-090714T0415Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1043 PM CDT MON JUL 13 2009

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CENTRAL CHERRY COUNTY IN NORTH CENTRAL NEBRASKA...

* UNTIL 1115 PM CDT

* AT 1043 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR WOOD
  LAKE...OR 22 MILES SOUTHEAST OF VALENTINE...MOVING NORTHEAST AT 15
  MPH.

* THE TORNADO WILL BE NEAR...
  WOOD LAKE BY 1105 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING GOLF 
BALL SIZE HAIL AND DAMAGING STRAIGHT LINE WINDS EXCEEDING 70 MPH.

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

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.

&&

LAT...LON 4252 10019 4251 10038 4267 10043 4276 10019
TIME...MOT...LOC 0343Z 247DEG 12KT 4260 10033

$$

SPRINGER

2 follow-up statements

000 
WWUS53 KLBF 140359
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1059 PM CDT MON JUL 13 2009

NEC031-140415-
/O.CON.KLBF.TO.W.0064.000000T0000Z-090714T0415Z/
CHERRY NE-
1059 PM CDT MON JUL 13 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1115 PM CDT FOR EAST
CENTRAL CHERRY COUNTY...

AT 1057 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR WOOD LAKE...OR 22
MILES WEST OF AINSWORTH...MOVING NORTHEAST AT 15 MPH.

THE TORNADO WILL BE NEAR...
  WOOD LAKE BY 1105 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING HAIL 
LARGER THAN AN INCH ACROSS AND DAMAGING STRAIGHT LINE WINDS.

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.

&&

LAT...LON 4252 10019 4251 10038 4267 10043 4276 10019
TIME...MOT...LOC 0358Z 247DEG 12KT 4262 10027

$$

SPRINGER

000 
WWUS53 KLBF 140412
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1112 PM CDT MON JUL 13 2009

NEC031-140422-
/O.EXP.KLBF.TO.W.0064.000000T0000Z-090714T0415Z/
CHERRY NE-
1112 PM CDT MON JUL 13 2009

...THE TORNADO WARNING FOR EAST CENTRAL CHERRY COUNTY WILL EXPIRE AT
1115 PM CDT...

THE IMMEDIATE THREAT FOR SEVERE WEATHER HAS DIMINISHED. 
THUNDERSTORMS WILL CONTINUE THROUGH LATE TONIGHT WITH GUSTY WIND AND 
HAIL POSSIBLE. HEAVY RAIN IS LIKELY.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT
TUESDAY MORNING FOR WESTERN NEBRASKA.

LAT...LON 4252 10019 4251 10038 4267 10043 4276 10019
TIME...MOT...LOC 0412Z 247DEG 12KT 4264 10021

$$

SPRINGER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 13, 6:30 PM MDT	Tornado Warning	LBF	Cherry	60 min
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, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.