Alert archive / Idaho / Tornado Warnings in 2011

Tornado Warning 2, NWS Boise, ID

June 6, 2011Camas County, Elmore County, Idaho

NWS Boise, ID issued this tornado warning at Jun 6, 2011, 2:59 PM MDT for Camas County, Elmore County, Idaho. It was in force for 31 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
Jun 6, 2011, 2:59 PM MDT (20:59 UTC)
Expired
Jun 6, 2011, 3:30 PM MDT
In force
31 min
Issued by
NWS Boise, ID
Area
Storm-based polygon

Counties Camas County, ID, Elmore County, ID

The radar

The Boise radar (KCBX), 88 km from the middle of the area, began a volume at 20:58 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

Boise Airport, ID (KBOI), launched 12:00Z, 9.0 hours before the alert went out and 84 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, Boise Airport, ID at 12:00Z on 2011-06-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 28 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, Boise Airport, ID at 12:00Z on 2011-06-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 64 square meters per square second.1939587897Sfc1 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
28 J/kg
Mixed-layer CIN
-493 J/kg
Mixed-layer LCL
2009 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
64 m²/s²
0-3 km storm-relative helicity
195 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.

754 
WFUS55 KBOI 062059
TORBOI
IDC025-039-062130-
/O.NEW.KBOI.TO.W.0002.110606T2059Z-110606T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BOISE ID
259 PM MDT MON JUN 6 2011

THE NATIONAL WEATHER SERVICE IN BOISE HAS ISSUED A

* TORNADO WARNING FOR...
  WEST CENTRAL CAMAS COUNTY IN CENTRAL IDAHO...
  EAST CENTRAL ELMORE COUNTY IN SOUTHWEST IDAHO...

* UNTIL 330 PM MDT.

* AT 252 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 7 MILES
  NORTHWEST OF HILL CITY...OR 17 MILES WEST OF FAIRFIELD...MOVING
  NORTH AT 25 MPH.

* THE TORNADO PRODUCING STORM WILL BE NEAR...
  BAUMGARTNER CAMPGROUND AROUND 325 PM MDT...
  GUNSIGHT PEAK AND FEATHERVILLE AROUND 330 PM MDT.

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 4372 11527 4372 11496 4332 11501 4333 11525
TIME...MOT...LOC 2058Z 181DEG 23KT 4341 11513

$$

BB
2 follow-up statements
306 
WWUS55 KBOI 062118
SVSBOI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BOISE ID
318 PM MDT MON JUN 6 2011

IDC025-039-062130-
/O.CON.KBOI.TO.W.0002.000000T0000Z-110606T2130Z/
ELMORE ID-CAMAS ID-
318 PM MDT MON JUN 6 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 330 PM MDT FOR WEST
CENTRAL CAMAS AND EAST CENTRAL ELMORE COUNTIES...

AT 315 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR BAUMGARTNER
CAMPGROUND...OR 22 MILES NORTHWEST OF FAIRFIELD...AND WAS MOVING
NORTH AT 35 MPH.

THE TORNADO PRODUCING STORM WILL BE NEAR...
  BAUMGARTNER CAMPGROUND AROUND 320 PM MDT...
  GUNSIGHT PEAK AROUND 330 PM MDT.

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 4372 11527 4372 11496 4344 11500 4344 11525
TIME...MOT...LOC 2118Z 181DEG 29KT 4358 11513

$$

BB
594 
WWUS55 KBOI 062127
SVSBOI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BOISE ID
327 PM MDT MON JUN 6 2011

IDC025-039-062137-
/O.EXP.KBOI.TO.W.0002.000000T0000Z-110606T2130Z/
ELMORE ID-CAMAS ID-
327 PM MDT MON JUN 6 2011

...THE TORNADO WARNING FOR WEST CENTRAL CAMAS AND EAST CENTRAL ELMORE
COUNTIES WILL EXPIRE AT 330 PM MDT...

THE STORM WHICH PROMPTED THE TORNADO WARNING HAS WEAKENED.  THEREFORE
THE WARNING WILL BE ALLOWED TO EXPIRE AT 330 PM MDT.  HOWEVER...SMALL
HAIL...HEAVY RAIN...GUSTY WINDS...AND LOW VISIBILITIES MAY STILL
OCCUR IN THE AREA...SO YOU SHOULD REMAIN CAUTIOUS AND ALERT FOR MORE
POTENTIAL SEVERE STORMS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU OBSERVED ANY HAIL...STRONG WINDS...WIND DAMAGE...OR TORNADOES
WITH THIS STORM...PLEASE CALL LOCAL LAW ENFORCEMENT AND ASK THEM TO
RELAY THE REPORT TO THE NATIONAL WEATHER SERVICE IN BOISE.

&&

LAT...LON 4372 11527 4372 11496 4344 11500 4344 11525
TIME...MOT...LOC 2127Z 181DEG 29KT 4365 11513

$$

BB

The office that day

Everything else NWS Boise, ID issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 6, 12:04 PM MDTSevere Thunderstorm WarningBOIOwyhee41 min
Jun 6, 12:47 PM MDTSpecial Weather StatementBOI43 min
Jun 6, 1:33 PM MDTSevere Thunderstorm WarningBOIElmore, Gooding, Owyhee, Twin Falls32 min
Jun 6, 2:01 PM MDTSevere Thunderstorm WarningBOICamas, Elmore, Gooding44 min
Jun 6, 2:27 PM MDTTornado WarningBOICamas, Elmore, Gooding33 min

Nearby

Tornado Warnings in Idaho, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.