Alert archive / Nebraska / Tornado Warnings in 2009

Tornado Warning 52, NWS North Platte, NE

June 24, 2009Holt County, Rock County, Nebraska

NWS North Platte, NE issued this tornado warning at Jun 24, 2009, 11:54 PM CDT for Holt County, Rock County, Nebraska. It was in force for 36 min. 3 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
Jun 24, 2009, 11:54 PM CDT (04:54 UTC)
Expired
Jun 25, 2009, 12:30 AM CDT
In force
36 min
Issued by
NWS North Platte, NE
Area
Storm-based polygon

Counties Holt County, NE, Rock County, NE

The radar

The North Platte radar (KLNX), 125 km from the middle of the area, began a volume at 04:57 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

TimeReportWhereRemark
Jun 25, 12:00 AM CDTTSTM WND GST 603 W Stuart, NETWO POWER POLES SNAPPED OFF AT THE GROUND AND LOTS OF TREE DAMAGE.
Jun 25, 12:00 AM CDTTORNADO2 W Newport, NEA STORM CHASER OBSERVED A TORNADO THAT RAPIDLY DEVELOPED AND CROSSED HIGHWAY 20 WEST OF NEWPORT. THE CHASER ESTIMATED THE WIDTH OF THE TORNADO TO BE APPROXIMATELY 75 YARDS. THE TORNADO WAS FOLLOWED BY INTENSE STRAIGHT LINE WINDS ESTIMATED AT 70 MPH.
Jun 25, 12:05 AM CDTTSTM WND GST 702 W Newport, NESTRAIGHT LINE THUNDERSTORM WINDS WERE ESTIMATED AT 70 MPH ALONG HIGHWAY 20 WEST OF NEWPORT.

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.

IssuedProductOfficeLasted
Jun 24, 11:53 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 4.9 hours before the alert went out and 193 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-pSkew-T log-p diagram, N. Platte/Lee Bi, NE at 00:00Z on 2009-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1379 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, N. Platte/Lee Bi, NE at 00:00Z on 2009-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 6 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
1379 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
2029 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
37 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.7

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KLBF 250454
TORLBF
NEC089-149-250530-
/O.NEW.KLBF.TO.W.0052.090625T0454Z-090625T0530Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1154 PM CDT WED JUN 24 2009

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* TORNADO WARNING FOR...
  WEST CENTRAL HOLT COUNTY IN NORTH CENTRAL NEBRASKA...
  NORTHEASTERN ROCK COUNTY IN NORTH CENTRAL NEBRASKA...

* UNTIL 1230 AM CDT

* AT 1150 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A FUNNEL CLOUD
  NEAR NEWPORT...OR 11 MILES EAST OF BASSETT...MOVING SOUTH AT 20
  MPH.

* THE TORNADO WILL BE NEAR...
  RURAL EASTERN ROCK COUNTY AT 1210 AM CDT
  RURAL WESTERN HOLT COUNTY AT 1210 AM CDT

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING FOUR 
INCH DIAMETER HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS EXCEEDING 80 
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.

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.

THIS WARNING REPLACES THE TORNADO WARNING ISSUED PREVIOUSLY FOR ROCK 
COUNTY. KEYA PAHA COUNTY IS NO LONGER UNDER A TORNADO THREAT.

&&

LAT...LON 4250 9912 4238 9953 4269 9949 4277 9924
TIME...MOT...LOC 0453Z 344DEG 18KT 4258 9931

$$

SPRINGER
2 follow-up statements
000 
WWUS53 KLBF 250514
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1214 AM CDT THU JUN 25 2009

NEC089-149-250530-
/O.CON.KLBF.TO.W.0052.000000T0000Z-090625T0530Z/
ROCK NE-HOLT NE-
1214 AM CDT THU JUN 25 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1230 AM CDT FOR WEST
CENTRAL HOLT AND NORTHEASTERN ROCK COUNTIES...

AT 1213 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED 8 MILES SOUTH OF
NEWPORT...OR 15 MILES SOUTHEAST OF BASSETT...MOVING SOUTH AT 20 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

THE STORM HAS CAUSED DOWNED POWER LINES IN RURAL ROCK COUNTY ON 
HIGHWAY 20.

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 4250 9912 4238 9953 4269 9949 4277 9924
TIME...MOT...LOC 0513Z 344DEG 18KT 4249 9927

$$

SPRINGER
000 
WWUS53 KLBF 250530
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1230 AM CDT THU JUN 25 2009

NEC089-149-250539-
/O.EXP.KLBF.TO.W.0052.000000T0000Z-090625T0530Z/
ROCK NE-HOLT NE-
1230 AM CDT THU JUN 25 2009

...THE TORNADO WARNING FOR WEST CENTRAL HOLT AND NORTHEASTERN ROCK
COUNTIES WILL EXPIRE AT 1230 AM CDT...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 500 AM CDT
THURSDAY MORNING FOR NORTH CENTRAL NEBRASKA.

A SEVERE THUNDERSTORM WARNING CONTINUES FOR WESTERN ROCK COUNTY AND 
CENTRAL HOLT COUNTY.

LAT...LON 4250 9912 4238 9953 4269 9949 4277 9924
TIME...MOT...LOC 0529Z 344DEG 18KT 4241 9924

$$

SPRINGER

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 24, 10:24 PM CDTTornado WarningLBFBoyd, Keya Paha36 min
Jun 24, 10:57 PM CDTTornado WarningLBFKeya Paha, Rock33 min
Jun 24, 10:59 PM CDTSevere Thunderstorm WarningLBFBoyd, Holt46 min
Jun 24, 11:30 PM CDTTornado WarningLBFKeya Paha, Rock30 min
Jun 24, 11:43 PM CDTSevere Thunderstorm WarningLBFBoyd, Holt, Rock47 min
Jun 25, 12:24 AM CDTSevere Thunderstorm WarningLBFHolt, Rock54 min
Jun 25, 12:42 AM CDTSevere Thunderstorm WarningLBFHolt, Rock63 min

Nearby

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