Alert archive / Nebraska / Tornado Warnings in 2007

Tornado Warning 84, NWS North Platte, NE

August 5, 2007Cherry County, Nebraska

NWS North Platte, NE issued this tornado warning at Aug 5, 2007, 3:45 PM MDT for Cherry County, Nebraska. It was in force for 45 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: Aug 5, 2007, 3:45 PM MDT (21:45 UTC)
Expired: Aug 5, 2007, 4:30 PM MDT
In force: 45 min
Issued by: NWS North Platte, NE
Area: Counties, with a storm outline in the text

County Cherry County, NE

The radar

The North Platte radar (KLNX), 96 km from the middle of the area, began a volume at 21:44 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
Aug 5, 3:45 PM MDT	HAIL 1	5 Se Kilgore, NE	SHERIFF DEPUTY OBSERVED QUARTER SIZE HAIL...AND THEN TURNED AROUND AS CONDITIONS WERE DETERIORATING RAPIDLY.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 9.8 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: 733 J/kg
Mixed-layer CIN: -243 J/kg
Mixed-layer LCL: 1399 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: -11 m²/s²
0-3 km storm-relative helicity: -9 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.1

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KLBF 052145
TORLBF
NEC031-052230-
/O.NEW.KLBF.TO.W.0084.070805T2145Z-070805T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
345 PM MDT SUN AUG 5 2007

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

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

* UNTIL 430 PM MDT(530 PM CDT)

* AT 340 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR ANDERSON
  BRIDGE STATE WILDLIFE MANAGEMENT AREA...OR ABOUT 24 MILES WEST OF
  VALENTINE...MOVING SOUTHEAST AT 10 MPH.

* THE TORNADO WILL BE NEAR...
  ANDERSON BRIDGE STATE WILDLIFE MANAGEMENT AREA BY 400 PM MDT...
  7 MILES NORTH OF MERRITT RESERVOIR DAM BY 530 PM CDT...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
BASEBALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

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 4299 10104 4277 10120 4254 10115 4242 10088
      4275 10057 4299 10061

$$

CDC

4 follow-up statements

000 
WWUS53 KLBF 052153
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
453 PM CDT SUN AUG 5 2007

NEC031-052230-
/O.CON.KLBF.TO.W.0084.000000T0000Z-070805T2230Z/
CHERRY NE-
353 PM MDT SUN AUG 5 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 430 PM MDT(530 PM CDT)
FOR CENTRAL CHERRY COUNTY...

AT 349 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR ANDERSON BRIDGE
STATE WILDLIFE MANAGEMENT AREA...OR ABOUT 23 MILES WEST OF
VALENTINE...MOVING SOUTHEAST AT 15 MPH.

THE TORNADO WILL BE NEAR...
  MERRITT RESERVOIR DAM BY 530 PM CDT...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
BASEBALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

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.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

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 4299 10104 4277 10120 4254 10115 4242 10088
      4275 10057 4299 10061

$$

CDC

000 
WWUS53 KLBF 052204
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
503 PM CDT SUN AUG 5 2007

NEC031-052230-
/O.CON.KLBF.TO.W.0084.000000T0000Z-070805T2230Z/
CHERRY NE-
403 PM MDT SUN AUG 5 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 430 PM MDT(530 PM CDT)
FOR CENTRAL CHERRY COUNTY...

AT 502 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR MERRITT RESERVOIR
DAM...OR ABOUT 20 MILES SOUTHWEST OF VALENTINE...MOVING SOUTHEAST AT
15 MPH.

THE TORNADO WILL BE NEAR...
  MERRITT RESERVOIR DAM BY 515 PM CDT...
  8 MILES NORTHEAST OF HIGHWAY 97 MILE MARKER 110 BY 425 PM MDT...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
BASEBALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

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.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

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 4299 10104 4277 10120 4254 10115 4242 10088
      4275 10057 4299 10061

$$

CDC

000 
WWUS53 KLBF 052218
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
517 PM CDT SUN AUG 5 2007

NEC031-052230-
/O.CON.KLBF.TO.W.0084.000000T0000Z-070805T2230Z/
CHERRY NE-
417 PM MDT SUN AUG 5 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 430 PM MDT(530 PM CDT)
FOR CENTRAL CHERRY COUNTY...

AT 415 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR MERRITT RESERVOIR
DAM...OR ABOUT 23 MILES SOUTHWEST OF VALENTINE...MOVING SOUTHEAST AT
15 MPH.

THE TORNADO WILL BE NEAR...
  MERRITT RESERVOIR DAM BY 525 PM CDT...
  HIGHWAY 97 MILE MARKER 110 BY 430 PM MDT...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
GOLFBALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

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.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

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 4299 10104 4277 10120 4254 10115 4242 10088
      4275 10057 4299 10061

$$

CDC

000 
WWUS53 KLBF 052228
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
528 PM CDT SUN AUG 5 2007

NEC031-052238-
/O.EXP.KLBF.TO.W.0084.000000T0000Z-070805T2230Z/
CHERRY NE-
428 PM MDT SUN AUG 5 2007

...THE TORNADO WARNING FOR CENTRAL CHERRY COUNTY EXPIRES AT 430 PM
MDT(530 PM CDT)...

THE THREAT OF A TORNADO HAS ENDED FOR NOW. ADDITIONAL SEVERE WEATHER 
IS LIKELY HOWEVER.

LAT...LON 4299 10104 4277 10120 4254 10115 4242 10088
      4275 10057 4299 10061

$$

CDC

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 5, 2:55 PM MDT	Severe Thunderstorm Warning	LBF	Cherry	65 min
Aug 5, 3:27 PM MDT	Severe Thunderstorm Warning	LBF	Cherry	33 min
Aug 5, 4:08 PM MDT	Severe Thunderstorm Warning	LBF	Cherry	52 min
Aug 5, 4:29 PM MDT	Severe Thunderstorm Warning	LBF	Cherry	31 min
Aug 5, 4:53 PM MDT	Severe Thunderstorm Warning	LBF	Cherry	67 min
Aug 5, 4:57 PM MDT	Severe Thunderstorm Warning	LBF	Cherry	37 min
Aug 5, 5:23 PM MDT	Severe Thunderstorm Warning	LBF	Brown	67 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.