Alert archive / Idaho / Tornado Warnings in 2012

Tornado Warning 1, NWS Pocatello, ID

September 1, 2012Cassia County, Minidoka County, Idaho

NWS Pocatello, ID issued this tornado warning at Sep 1, 2012, 3:28 PM MDT for Cassia County, Minidoka County, Idaho. It was in force for 47 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
Sep 1, 2012, 3:28 PM MDT (21:28 UTC)
Expired
Sep 1, 2012, 4:15 PM MDT
In force
47 min
Issued by
NWS Pocatello, ID
Area
Storm-based polygon

Counties Cassia County, ID, Minidoka County, ID

The radar

The Pocatello radar (KSFX), 129 km from the middle of the area, began a volume at 21:28 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
Sep 1, 4:20 PM MDTTORNADODeclo, IDKMVT CHANNEL 11 FORWARDED A PICTURE OF A TORNADO IN THE AREA EAST OF DECLO. TIME IS ESTIMATED FROM RADAR.

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

The nearest sounding before it

Elko, NV (KLKN), launched 12:00Z, 9.5 hours before the alert went out and 180 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, Elko, NV at 12:00Z on 2012-09-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 122 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Elko, NV at 12:00Z on 2012-09-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 73 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
122 J/kg
Mixed-layer CIN
-213 J/kg
Mixed-layer LCL
1415 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
73 m²/s²
0-3 km storm-relative helicity
0 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.

339 
WFUS55 KPIH 012128
TORPIH
IDC031-067-012215-
/O.NEW.KPIH.TO.W.0001.120901T2128Z-120901T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE POCATELLO ID
328 PM MDT SAT SEP 1 2012

THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN CASSIA COUNTY IN SOUTH CENTRAL IDAHO...
  THIS INCLUDES THE CITY OF BURLEY...
  SOUTHWESTERN MINIDOKA COUNTY IN SOUTH CENTRAL IDAHO...
  THIS INCLUDES THE CITIES OF...RUPERT...PAUL...HEYBURN...

* UNTIL 415 PM MDT

* AT 324 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 25 MILES
  SOUTHWEST OF BURLEY...OR 16 MILES SOUTHEAST OF TWIN FALLS...MOVING
  EAST AT 40 MPH.

* LOCATIONS THAT COULD BE AFFECTED INCLUDE...
   BURLEY...
   HEYBURN...
   PAUL...
   RUPERT...
   ALBION...

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.

STAY TUNED TO THIS BROADCAST FOR THE LATEST UPDATES AND INFORMATION.
TO REPORT SEVERE WEATHER ONLY...CALL 1 800 8 7 7 1 9 3 7.

&&

LAT...LON 4241 11429 4242 11428 4242 11409 4251 11407
      4254 11399 4254 11394 4267 11394 4282 11365
      4232 11344 4229 11429
TIME...MOT...LOC 2127Z 253DEG 33KT 4240 11420

$$

JKEYES
1 follow-up statement
572 
WWUS55 KPIH 012145
SVSPIH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
345 PM MDT SAT SEP 1 2012

IDC031-067-012215-
/O.CON.KPIH.TO.W.0001.000000T0000Z-120901T2215Z/
MINIDOKA ID-CASSIA ID-
345 PM MDT SAT SEP 1 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM MDT FOR CENTRAL
CASSIA AND SOUTHWESTERN MINIDOKA COUNTIES...

AT 342 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A POSSIBLE TORNADO.  THIS TORNADO WAS LOCATED 15 MILES 
SOUTHWEST OF BURLEY...MOVING EAST AT 35 MPH.

* LOCATIONS THAT COULD BE AFFECTED INCLUDE...
   BURLEY...
   HEYBURN...
   PAUL...
   DECLO... 
   RUPERT...
   ALBION...

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.

STAY TUNED TO THIS BROADCAST FOR THE LATEST UPDATES AND INFORMATION.
TO REPORT SEVERE WEATHER ONLY...CALL 1 800 8 7 7 1 9 3 7.

&&

LAT...LON 4230 11411 4237 11413 4242 11416 4242 11409
      4251 11407 4254 11399 4254 11394 4267 11394
      4282 11365 4232 11344
TIME...MOT...LOC 2144Z 253DEG 31KT 4244 11402

$$

JKEYES

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 31, 6:04 PM MDTSpecial Weather StatementPIHMinidoka56 min
Aug 31, 6:08 PM MDTSpecial Weather StatementPIHCassia67 min
Aug 31, 6:56 PM MDTSpecial Weather StatementPIHCassia64 min
Aug 31, 6:57 PM MDTSpecial Weather StatementPIHPower63 min
Aug 31, 7:08 PM MDTSpecial Weather StatementPIHMadison52 min
Aug 31, 7:48 PM MDTSpecial Weather StatementPIHMadison42 min
Aug 31, 7:55 PM MDTSpecial Weather StatementPIHButte65 min
Aug 31, 8:02 PM MDTSpecial Weather StatementPIHCassia, Minidoka, Power88 min
Aug 31, 8:31 PM MDTSpecial Weather StatementPIHJefferson59 min
Aug 31, 8:48 PM MDTSpecial Weather StatementPIHCassia42 min
Aug 31, 9:14 PM MDTSpecial Weather StatementPIHCassia46 min
Aug 31, 9:23 PM MDTSpecial Weather StatementPIHJefferson67 min
Aug 31, 9:57 PM MDTSevere Thunderstorm WarningPIHBlaine, Cassia, Lincoln, Minidoka, Oneida, Power48 min
Aug 31, 10:45 PM MDTSpecial Weather StatementPIHBannock, Franklin, Oneida, Power45 min
Sep 1, 1:18 PM MDTRed Flag WarningPIHBannock, Bear Lake, Bingham, Bonneville, Butte, Caribou and 10 more9 hr
Sep 1, 3:06 PM MDTSpecial Weather StatementPIHFranklin54 min
Sep 1, 3:19 PM MDTSevere Thunderstorm WarningPIHCassia, Minidoka41 min
Sep 1, 4:10 PM MDTTornado WarningPIHBlaine, Cassia, Minidoka, Power50 min
Sep 1, 4:56 PM MDTSevere Thunderstorm WarningPIHBannock, Bingham, Blaine, Cassia, Power64 min
Sep 1, 5:17 PM MDTSpecial Weather StatementPIHClark43 min
Sep 1, 5:49 PM MDTFlash Flood WarningPIHBannock, Power116 min

Nearby

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