Alert archive / Nevada / Tornado Warnings in 2012

Tornado Warning 1, NWS Elko, NV

August 21, 2012Eureka County, White Pine County, Nevada

NWS Elko, NV issued this tornado warning at Aug 21, 2012, 12:40 PM PDT for Eureka County, White Pine County, Nevada. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 21, 2012, 12:40 PM PDT (19:40 UTC)
Expired
Aug 21, 2012, 1:15 PM PDT
In force
35 min
Issued by
NWS Elko, NV
Area
Storm-based polygon

Counties Eureka County, NV, White Pine County, NV

The radar

The Elko radar (KLRX), 165 km from the middle of the area, began a volume at 19:40 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.

The nearest sounding before it

Reno, NV (KREV), launched 12:00Z, 7.7 hours before the alert went out and 197 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, Reno, NV at 12:00Z on 2012-08-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Reno, NV at 12:00Z on 2012-08-21The 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3870 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
75 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

156 
WFUS55 KLKN 211940
TORLKN
NVC011-033-212015-
/O.NEW.KLKN.TO.W.0001.120821T1940Z-120821T2015Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ELKO NV
1240 PM PDT TUE AUG 21 2012

THE NATIONAL WEATHER SERVICE IN ELKO HAS ISSUED A

* TORNADO WARNING FOR...
  EXTREME WEST CENTRAL WHITE PINE COUNTY IN EASTERN NEVADA...
  SOUTHEASTERN EUREKA COUNTY IN NORTH CENTRAL NEVADA...
  THIS INCLUDES THE CITY OF PINTO SUMMIT...

* UNTIL 115 PM PDT

* AT 1236 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR PINTO
  SUMMIT...MOVING EAST AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
   PINTO SUMMIT...

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.

&&

LAT...LON 3950 11581 3937 11574 3932 11604 3944 11613
TIME...MOT...LOC 1940Z 255DEG 16KT 3941 11597

$$

TURNER
2 follow-up statements
991 
WWUS55 KLKN 211951
SVSLKN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ELKO NV
1251 PM PDT TUE AUG 21 2012

NVC011-033-212015-
/O.CON.KLKN.TO.W.0001.000000T0000Z-120821T2015Z/
WHITE PINE NV-EUREKA NV-
1251 PM PDT TUE AUG 21 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 115 PM PDT FOR
SOUTHEASTERN EUREKA AND EXTREME WEST CENTRAL WHITE PINE COUNTIES...

AT 1245 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR PINTO 
SUMMIT...MOVING EAST AT 20 MPH. RADAR CONTINUES TO INDICATE ROTATION 
AND FUNNEL CLOUDS ARE POSSIBLE NEAR PINTO SUMMIT AND U.S. HIGHWAY 
50. 

* LOCATIONS IMPACTED INCLUDE...
  PINTO SUMMIT...
  U.S. HIGHWAY 50...
  RURAL WESTERN WHITE PINE COUNTY...
  RURAL SOUTHEASTERN EUREKA COUNTY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3944 11611 3950 11581 3937 11574 3932 11603
TIME...MOT...LOC 1950Z 255DEG 16KT 3942 11591

$$

TURNER
988 
WWUS55 KLKN 212012
SVSLKN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ELKO NV
112 PM PDT TUE AUG 21 2012

NVC011-033-212020-
/O.EXP.KLKN.TO.W.0001.000000T0000Z-120821T2015Z/
WHITE PINE NV-EUREKA NV-
112 PM PDT TUE AUG 21 2012

...THE TORNADO WARNING FOR SOUTHEASTERN EUREKA AND EXTREME WEST
CENTRAL WHITE PINE COUNTIES WILL EXPIRE AT 115 PM PDT...

ROTATION IS MOVING EAST OUT OF THE WARNING AREA...INTO WESTERN WHITE 
PINE COUNTY. THE TORNADO WARNING WILL BE ALLOWED TO EXPIRE AT 115 PM 
PDT. 

&&

LAT...LON 3944 11611 3950 11581 3937 11574 3932 11603
TIME...MOT...LOC 2010Z 255DEG 16KT 3944 11580

$$

TURNER

The office that day

Everything else NWS Elko, NV issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 21, 2:26 AM PDTFlash Flood WatchLKNElko, Nye, White Pine41 hr
Aug 21, 11:59 AM PDTSevere Thunderstorm WarningLKNEureka, White Pine46 min
Aug 21, 1:06 PM PDTFlash Flood WarningLKNEureka, White Pine114 min
Aug 21, 1:07 PM PDTSevere Thunderstorm WarningLKNEureka, White Pine23 min
Aug 21, 1:18 PM PDTSevere Thunderstorm WarningLKNLander, Nye42 min
Aug 21, 1:32 PM PDTSpecial Weather StatementLKNWhite Pine43 min
Aug 21, 1:41 PM PDTSpecial Weather StatementLKN49 min
Aug 21, 2:26 PM PDTSpecial Weather StatementLKNWhite Pine34 min
Aug 21, 2:38 PM PDTFlash Flood WarningLKNLander, Nye3 hr
Aug 21, 3:34 PM PDTSpecial Weather StatementLKN41 min
Aug 21, 3:36 PM PDTAreal Flood AdvisoryLKNEureka, White Pine3 hr
Aug 21, 4:18 PM PDTSpecial Weather StatementLKNLander, White Pine57 min
Aug 21, 4:38 PM PDTAreal Flood AdvisoryLKNEureka, Nye, White Pine3 hr
Aug 21, 4:53 PM PDTAreal Flood AdvisoryLKNEureka, Lander, Nye3 hr

Nearby

Tornado Warnings in Nevada, 2012Every tornado warning in 2012Tornadoes in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.