Alert archive / Idaho / Tornado Warnings in 2016

Tornado Warning 5, NWS Pocatello, ID

October 2, 20164 counties in Idaho

NWS Pocatello, ID issued this tornado warning at Oct 2, 2016, 8:17 PM MDT for 4 counties in Idaho. It was in force for 21 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
Oct 2, 2016, 8:17 PM MDT (02:17 UTC)
Expired
Oct 2, 2016, 8:38 PM MDT
In force
21 min
Issued by
NWS Pocatello, ID
Area
Storm-based polygon

Counties Bingham County, ID, Bonneville County, ID, Caribou County, ID, Teton County, ID

The radar

The Pocatello radar (KSFX), 103 km from the middle of the area, began a volume at 02:20 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

Riverton, WY (KRIW), launched 00:00Z, 2.3 hours before the alert went out and 245 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, Riverton, WY at 00:00Z on 2016-10-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 12 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Riverton, WY at 00:00Z on 2016-10-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 233 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
12 J/kg
Mixed-layer CIN
-68 J/kg
Mixed-layer LCL
2014 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
233 m²/s²
0-3 km storm-relative helicity
338 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

As transmitted.

638 
WFUS55 KPIH 030217
TORPIH
IDC011-019-029-081-030315-
/O.NEW.KPIH.TO.W.0005.161003T0217Z-161003T0315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE POCATELLO ID
817 PM MDT SUN OCT 2 2016

THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN BONNEVILLE COUNTY IN SOUTHEASTERN IDAHO...
  EAST CENTRAL BINGHAM COUNTY IN SOUTHEASTERN IDAHO...
  SOUTHERN TETON COUNTY IN EASTERN IDAHO...
  NORTH CENTRAL CARIBOU COUNTY IN SOUTHEASTERN IDAHO...

* UNTIL 915 PM MDT
    
* AT 817 PM MDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED
  NEAR BLACKFOOT RESERVOIR. THE TORNADIC STORM WAS NEARLY STATIONARY.

* LOCATIONS IMPACTED INCLUDE...
  SWAN VALLEY...BLACKFOOT RESERVOIR...NORTHERN PALISADES RESERVOIR...
  IRWIN...HENRY AND GRAYS LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

MOTORISTS SHOULD NOT TAKE SHELTER UNDER HIGHWAY OVERPASSES. IF YOU
CANNOT SAFELY DRIVE AWAY FROM THE TORNADO...AS A LAST RESORT...EITHER
PARK YOUR VEHICLE AND STAY PUT...OR ABANDON YOUR VEHICLE AND LIE DOWN
IN A LOW LYING AREA AND PROTECT YOURSELF FROM FLYING DEBRIS.

TORNADOES ARE EXTREMELY DIFFICULT TO SEE AND CONFIRM AT NIGHT. DO NOT
WAIT TO SEE OR HEAR THE TORNADO. TAKE COVER NOW!

&&

LAT...LON 4278 11160 4292 11191 4361 11133 4347 11104
      4335 11104
TIME...MOT...LOC 0217Z 030DEG 0KT 4294 11169 

$$

MESSICK
1 follow-up statement
741 
WWUS55 KPIH 030238
SVSPIH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
838 PM MDT SUN OCT 2 2016

IDC011-019-029-081-030248-
/O.CAN.KPIH.TO.W.0005.000000T0000Z-161003T0315Z/
BONNEVILLE ID-BINGHAM ID-TETON ID-CARIBOU ID-
838 PM MDT SUN OCT 2 2016

...THE TORNADO WARNING FOR EASTERN BONNEVILLE...EAST CENTRAL
BINGHAM...SOUTHERN TETON AND NORTH CENTRAL CARIBOU COUNTIES IS
CANCELLED...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER APPEARS TO BE CAPABLE OF PRODUCING A TORNADO.
THEREFORE THE WARNING HAS BEEN CANCELLED. HOWEVER LARGE AMOUNTS
OF HAIL AND HEAVY RAIN ARE STILL POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 4278 11160 4292 11191 4361 11133 4347 11104
      4335 11104
TIME...MOT...LOC 0237Z 030DEG 0KT 4294 11169 

$$

MESSICK

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 2, 6:05 PM MDTSpecial Weather StatementPIHBingham40 min
Oct 2, 6:09 PM MDTSpecial Weather StatementPIHBingham, Power36 min
Oct 2, 6:13 PM MDTSpecial Weather StatementPIHBannock32 min
Oct 2, 6:27 PM MDTSevere Thunderstorm WarningPIHBannock, Bingham, Bonneville, Caribou33 min
Oct 2, 6:44 PM MDTTornado WarningPIHBannock, Bingham, Caribou31 min
Oct 2, 7:09 PM MDTTornado WarningPIHBingham, Bonneville, Caribou51 min
Oct 2, 7:34 PM MDTTornado WarningPIHBannock, Bingham, Caribou43 min
Oct 2, 8:07 PM MDTSpecial Weather StatementPIHTeton23 min
Oct 2, 8:51 PM MDTSpecial Weather StatementPIHTeton39 min
Oct 2, 9:35 PM MDTSpecial Weather StatementPIHOneida40 min

Nearby

Tornado Warnings in Idaho, 2016Every tornado warning in 2016Tornadoes in 2016

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.