Alert archive / Nebraska / Tornado Warnings in 2011

Tornado Warning 59, NWS North Platte, NE

October 6, 2011Cherry County, Nebraska

NWS North Platte, NE issued this tornado warning at Oct 6, 2011, 6:01 PM MDT for Cherry County, Nebraska. It was in force for 29 min. 2 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
Oct 6, 2011, 6:01 PM MDT (00:01 UTC)
Expired
Oct 6, 2011, 6:30 PM MDT
In force
29 min
Issued by
NWS North Platte, NE
Area
Storm-based polygon

County Cherry County, NE

The radar

The North Platte radar (KLNX), 134 km from the middle of the area, began a volume at 00:02 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
Oct 6, 6:05 PM MDTHAIL 1.5Merriman, NEQUARTER TO PING BALL SIZED HAIL OCCCURED IN MERRIMAN. RESCUE UNIT REPORTED HIGHWAY GREEN FROM STRIPPED LEAVES.
Oct 6, 6:07 PM MDTHAIL 1.5Merriman, NEVERY HEAVY RAIN AND WIND GUSTS ALSO REPORTED.

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
Oct 6, 2:32 PM MDTSevere Thunderstorm WatchSPC9 hr

The nearest sounding before it

Rapid City, SD (KUNR), launched 00:00Z, 0.0 hours before the alert went out and 168 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, Rapid City, SD at 00:00Z on 2011-10-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 192 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, Rapid City, SD at 00:00Z on 2011-10-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 222 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
192 J/kg
Mixed-layer CIN
-179 J/kg
Mixed-layer LCL
898 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
222 m²/s²
0-3 km storm-relative helicity
432 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.

717 
WFUS53 KLBF 070001
TORLBF
NEC031-070030-
/O.NEW.KLBF.TO.W.0059.111007T0001Z-111007T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
601 PM MDT THU OCT 6 2011

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

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

* UNTIL 630 PM MDT

* AT 557 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR INTERSECTION OF HIGHWAY 61 AND SHADBOLT
  ROAD...OR 23 MILES EAST OF GORDON...AND MOVING NORTH AT 55 MPH.

* THIS DANGEROUS STORM WILL BE NEAR...
  MERRIMAN AROUND 610 PM MDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4270 10169 4274 10187 4300 10176 4300 10150
TIME...MOT...LOC 0001Z 201DEG 48KT 4280 10173

$$

JACOBS
2 follow-up statements
058 
WWUS53 KLBF 070009
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
609 PM MDT THU OCT 6 2011

NEC031-070030-
/O.CON.KLBF.TO.W.0059.000000T0000Z-111007T0030Z/
CHERRY NE-
609 PM MDT THU OCT 6 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN CHERRY COUNTY
UNTIL 630 PM MDT...

AT 606 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR MERRIMAN...OR 27 MILES EAST OF GORDON...MOVING
NORTH AT 55 MPH.

THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF NORTHWESTERN 
CHERRY COUNTY INCLUDING THE TOWN OF MERRIMAN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4280 10165 4285 10178 4300 10176 4300 10150
TIME...MOT...LOC 0008Z 201DEG 48KT 4290 10166

$$

JACOBS
044 
WWUS53 KLBF 070020
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
620 PM MDT THU OCT 6 2011

NEC031-070031-
/O.EXP.KLBF.TO.W.0059.000000T0000Z-111007T0030Z/
CHERRY NE-
620 PM MDT THU OCT 6 2011

...THE TORNADO WARNING FOR NORTHWESTERN CHERRY COUNTY WILL EXPIRE AT
630 PM MDT...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.  HOWEVER GUSTY WINDS ARE STILL POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 4280 10165 4285 10178 4300 10176 4300 10150
TIME...MOT...LOC 0021Z 201DEG 48KT 4306 10157

$$

JACOBS

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 6, 6:37 PM MDTSevere Thunderstorm WarningLBFArthur, Keith, McPherson, Perkins38 min
Oct 6, 7:07 PM MDTSevere Thunderstorm WarningLBFHooker, McPherson, Thomas38 min
Oct 6, 7:15 PM MDTSevere Thunderstorm WarningLBFArthur, Keith, McPherson45 min
Oct 6, 7:40 PM MDTSevere Thunderstorm WarningLBFCherry, Hooker, Thomas50 min
Oct 6, 8:06 PM MDTSevere Thunderstorm WarningLBFCherry, Hooker39 min
Oct 6, 8:30 PM MDTSevere Thunderstorm WarningLBFCherry45 min
Oct 6, 9:17 PM MDTSevere Thunderstorm WarningLBFCherry, Keya Paha43 min
Oct 7, 2:50 AM MDTWind AdvisoryLBFBrown, Cherry, Keya Paha, Sheridan12 hr
Oct 7, 3:07 AM MDTRed Flag WarningLBFArthur, Blaine, Boyd, Brown, Cherry, Deuel and 12 more15 hr

Nearby

Tornado Warnings in Nebraska, 2011Every tornado warning in 2011Tornadoes in 2011

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.