Alert archive / Nebraska / Tornado Warnings in 2009

Tornado Warning 32, NWS North Platte, NE

June 15, 2009Logan County, Nebraska

NWS North Platte, NE issued this tornado warning at Jun 15, 2009, 4:59 PM CDT for Logan County, Nebraska. It was in force for 31 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: Jun 15, 2009, 4:59 PM CDT (21:59 UTC)
Expired: Jun 15, 2009, 5:30 PM CDT
In force: 31 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon

County Logan County, NE

The radar

The North Platte radar (KLNX), 44 km from the middle of the area, began a volume at 22:00 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
Jun 15, 5:11 PM CDT	HAIL 1	9 N Stapleton, NE	NICKEL AND QUARTER SIZE HAIL FOR 20 MINUTES WITH 1.71 INCHES OF RAIN.

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
Jun 15, 3:34 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 10.0 hours before the alert went out and 53 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: 309 J/kg
Mixed-layer CIN: -139 J/kg
Mixed-layer LCL: 685 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 97 m²/s²
0-3 km storm-relative helicity: 69 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.9

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KLBF 152159
TORLBF
NEC113-152230-
/O.NEW.KLBF.TO.W.0032.090615T2159Z-090615T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
459 PM CDT MON JUN 15 2009

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN LOGAN COUNTY IN WEST CENTRAL NEBRASKA...
  THIS INCLUDES THE CITY OF STAPLETON...

* UNTIL 530 PM CDT

* AT 458 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR TARBOZ
  LAKE...OR 8 MILES NORTHEAST OF STAPLETON...MOVING EAST AT 10 MPH.

* THE TORNADO WILL BE NEAR...
  TARBOZ LAKE BY 505 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT TUESDAY MORNING
FOR SOUTHWESTERN NEBRASKA.

&&

LAT...LON 4148 10055 4166 10055 4172 10026 4170 10025
      4146 10026
TIME...MOT...LOC 2159Z 270DEG 11KT 4157 10043

$$
SPRINGER

2 follow-up statements

000 
WWUS53 KLBF 152214
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
514 PM CDT MON JUN 15 2009

NEC113-152230-
/O.CON.KLBF.TO.W.0032.000000T0000Z-090615T2230Z/
LOGAN NE-
514 PM CDT MON JUN 15 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 PM CDT FOR CENTRAL
LOGAN COUNTY...

AT 510 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR HIGHWAY 83 MILE
MARKER 120...OR 9 MILES NORTHEAST OF STAPLETON...MOVING EAST AT 10
MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT TUESDAY MORNING
FOR SOUTHWESTERN NEBRASKA.

&&

LAT...LON 4148 10055 4166 10055 4172 10026 4170 10025
      4146 10026
TIME...MOT...LOC 2214Z 252DEG 9KT 4159 10039

$$

SPRINGER

000 
WWUS53 KLBF 152232
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
532 PM CDT MON JUN 15 2009

NEC113-152241-
/O.EXP.KLBF.TO.W.0032.000000T0000Z-090615T2230Z/
LOGAN NE-
532 PM CDT MON JUN 15 2009

...THE TORNADO WARNING FOR CENTRAL LOGAN COUNTY HAS EXPIRED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT TUESDAY MORNING
FOR SOUTHWESTERN NEBRASKA.

THUNDERSTORMS ARE STILL OCCURRING THAT MAY PRODUCE WIND GUSTS 
EXCEEDING 50 MPH AND UP TO NICKEL SIZED HAIL.

LAT...LON 4148 10055 4166 10055 4172 10026 4170 10025
      4146 10026
TIME...MOT...LOC 2214Z 252DEG 9KT 4159 10039

$$

SPRINGER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 15, 3:45 PM CDT	Severe Thunderstorm Warning	LBF	Logan	60 min
Jun 15, 4:06 PM CDT	Tornado Warning	LBF	Logan	24 min
Jun 15, 4:12 PM CDT	Severe Thunderstorm Warning	LBF	Logan, Thomas	63 min
Jun 15, 4:29 PM CDT	Tornado Warning	LBF	Logan	31 min
Jun 15, 4:32 PM CDT	Tornado Warning	LBF	Keith, Lincoln	43 min
Jun 15, 4:33 PM CDT	Tornado Warning	LBF	Thomas	27 min
Jun 15, 4:56 PM CDT	Severe Thunderstorm Warning	LBF	Cherry, Thomas	64 min
Jun 15, 5:14 PM CDT	Tornado Warning	LBF	Lincoln	46 min
Jun 15, 5:27 PM CDT	Areal Flood Advisory	LBF	Lincoln	4 hr
Jun 15, 5:35 PM CDT	Severe Thunderstorm Warning	LBF	Blaine, Custer	55 min
Jun 15, 5:39 PM CDT	Severe Thunderstorm Warning	LBF	Cherry	66 min
Jun 15, 5:49 PM CDT	Severe Thunderstorm Warning	LBF	Perkins	56 min
Jun 15, 5:59 PM CDT	Severe Thunderstorm Warning	LBF	Cherry	36 min
Jun 15, 5:59 PM CDT	Tornado Warning	LBF	Lincoln	46 min
Jun 15, 6:08 PM CDT	Flash Flood Warning	LBF	Lincoln	4 hr
Jun 15, 6:09 PM CDT	Tornado Warning	LBF	Perkins	39 min
Jun 15, 6:28 PM CDT	Severe Thunderstorm Warning	LBF	Blaine, Custer	62 min
Jun 15, 6:44 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln	46 min
Jun 15, 6:45 PM CDT	Severe Thunderstorm Warning	LBF	Brown, Cherry, Keya Paha	30 min
Jun 15, 6:54 PM CDT	Tornado Warning	LBF	Lincoln	51 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.