Alert archive / Nebraska / Tornado Warnings in 2007

Tornado Warning 76, NWS North Platte, NE

July 15, 2007Brown County, Rock County, Nebraska

NWS North Platte, NE issued this tornado warning at Jul 15, 2007, 3:51 PM CDT for Brown County, Rock County, Nebraska. It was in force for 39 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 15, 2007, 3:51 PM CDT (20:51 UTC)
Expired: Jul 15, 2007, 4:30 PM CDT
In force: 39 min
Issued by: NWS North Platte, NE
Area: Counties, with a storm outline in the text

Counties Brown County, NE, Rock County, NE

The radar

The North Platte radar (KLNX), 96 km from the middle of the area, began a volume at 20:52 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 15, 4:25 PM CDT	HAIL 1	14 Ne Rose, 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 15, 2:37 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 8.9 hours before the alert went out and 170 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: 937 J/kg
Mixed-layer CIN: -150 J/kg
Mixed-layer LCL: 1946 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 39 m²/s²
0-3 km storm-relative helicity: 83 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KLBF 152051
TORLBF
NEC017-149-152130-
/O.NEW.KLBF.TO.W.0076.070715T2051Z-070715T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
351 PM CDT SUN JUL 15 2007

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CENTRAL BROWN COUNTY IN NORTH CENTRAL NEBRASKA...
  THIS INCLUDES THE CITY OF AINSWORTH...
  CENTRAL ROCK COUNTY IN NORTH CENTRAL NEBRASKA...
  THIS INCLUDES THE CITY OF BASSETT...

* UNTIL 430 PM CDT

* AT 348 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR LONG
  PINE...OR ABOUT 6 MILES EAST OF AINSWORTH...MOVING EAST AT 25 MPH.

* THE TORNADO WILL BE NEAR...
  8 MILES SOUTH OF BASSETT BY 405 PM CDT...
  9 MILES NORTH OF TWIN LAKES STATE WILDLIFE MANAGEMENT AREA BY 420
  PM CDT...
  PONY LAKE BY 425 PM CDT...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING
QUARTER SIZE HAIL AND DESTRUCTIVE 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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT
SUNDAY EVENING FOR WESTERN NEBRASKA.

LAT...LON 4264 9979 4251 10000 4227 9984 4226 9925
      4259 9926

$$

MASEK

2 follow-up statements

000 
WWUS53 KLBF 152103
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
403 PM CDT SUN JUL 15 2007

NEC017-149-152130-
/O.CON.KLBF.TO.W.0076.000000T0000Z-070715T2130Z/
ROCK NE-BROWN NE-
403 PM CDT SUN JUL 15 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 430 PM CDT FOR EAST
CENTRAL BROWN AND CENTRAL ROCK COUNTIES...

AT 400 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR LONG PINE...OR
ABOUT 8 MILES SOUTHWEST OF BASSETT...MOVING SOUTHEAST AT 25 MPH.

THE TORNADO WILL BE NEAR...
  HIGHWAY 183 MILE MARKER 170 BY 410 PM CDT...
  PONY LAKE BY 430 PM CDT...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING
QUARTER SIZE HAIL AND DESTRUCTIVE 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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT
SUNDAY EVENING FOR WESTERN NEBRASKA.

LAT...LON 4264 9979 4251 10000 4227 9984 4226 9925
      4259 9926

$$

MASEK

000 
WWUS53 KLBF 152128
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
426 PM CDT SUN JUL 15 2007

NEC017-149-152136-
/O.EXP.KLBF.TO.W.0076.000000T0000Z-070715T2130Z/
ROCK NE-BROWN NE-
426 PM CDT SUN JUL 15 2007

...THE TORNADO WARNING FOR EAST CENTRAL BROWN AND CENTRAL ROCK
COUNTIES WILL BE ALLOWED TO EXPIRE...

A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN 
ROCK COUNTY.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT
SUNDAY EVENING FOR WESTERN NEBRASKA.

LAT...LON 4264 9979 4251 10000 4227 9984 4226 9925
      4259 9926

$$

MASEK

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 15, 2:28 PM CDT	Severe Thunderstorm Warning	LBF	Cherry, Grant, Hooker	47 min
Jul 15, 2:41 PM CDT	Severe Thunderstorm Warning	LBF	Blaine	49 min
Jul 15, 3:04 PM CDT	Severe Thunderstorm Warning	LBF	Cherry	41 min
Jul 15, 3:10 PM CDT	Severe Thunderstorm Warning	LBF	Brown	65 min
Jul 15, 3:20 PM CDT	Severe Thunderstorm Warning	LBF	Custer	55 min
Jul 15, 3:32 PM CDT	Severe Thunderstorm Warning	LBF	Blaine	58 min
Jul 15, 4:07 PM CDT	Severe Thunderstorm Warning	LBF	Custer	53 min
Jul 15, 4:18 PM CDT	Severe Thunderstorm Warning	LBF	Blaine	57 min
Jul 15, 4:25 PM CDT	Severe Thunderstorm Warning	LBF	Loup, Rock	65 min
Jul 15, 4:29 PM CDT	Severe Thunderstorm Warning	LBF	Garfield, Holt	46 min
Jul 15, 4:59 PM CDT	Severe Thunderstorm Warning	LBF	Custer	61 min
Jul 15, 5:14 PM CDT	Severe Thunderstorm Warning	LBF	Holt	46 min
Jul 15, 5:25 PM CDT	Severe Thunderstorm Warning	LBF	Garfield	26 min
Jul 15, 5:54 PM CDT	Severe Thunderstorm Warning	LBF	Holt	51 min
Jul 15, 5:59 PM CDT	Severe Thunderstorm Warning	LBF	Custer	61 min
Jul 15, 6:23 PM CDT	Severe Thunderstorm Warning	LBF	Holt	29 min
Jul 15, 6:39 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln	36 min

Nearby

Tornado Warnings in Nebraska, 2007 Every tornado warning in 2007 Tornadoes in 2007

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.