Alert archive / Idaho / Special Weather Statements in 2016

Special Weather Statement, NWS Pocatello, ID

September 29, 2016Bonneville County, Caribou County, Teton County, Idaho

NWS Pocatello, ID issued this special weather statement at Sep 29, 2016, 2:13 PM MDT for Bonneville County, Caribou County, Teton County, Idaho. It was in force for 62 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
Sep 29, 2016, 2:13 PM MDT (20:13 UTC)
Expired
Sep 29, 2016, 3:15 PM MDT
In force
62 min
Issued by
NWS Pocatello, ID

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

The radar

The Pocatello radar (KSFX), 102 km from the middle of the area, began a volume at 20:12 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 12:00Z, 8.2 hours before the alert went out and 247 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 12:00Z on 2016-09-29Temperature 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 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Riverton, WY at 12:00Z on 2016-09-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 77 square meters per square second.193958Sfc1 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
2365 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
77 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.

172 
WWUS85 KPIH 292013
SPSPIH

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
213 PM MDT THU SEP 29 2016
 
IDZ019>021-023-292115-
LOWER SNAKE RIVER PLAIN ID-UPPER SNAKE RIVER PLAIN ID-
UPPER SNAKE HIGHLANDS ID-CARIBOU HIGHLANDS ID-
213 PM MDT THU SEP 29 2016

...THUNDERSTORMS MOVING THROUGH THE EASTERN HIGHLANDS THROUGH 300 PM
MDT...

AT 208 PM MDT...DOPPLER RADAR WAS TRACKING AN AREA OF THUNDERSTORMS
SOUTHEAST OF IDAHO FALLS...MOVING NORTHEAST AT 20 MPH.

BRIEF MODERATE RAIN...SMALL HAIL AND WIND GUSTS UP TO 40 MPH ARE
POSSIBLE WITH THESE STORMS AS THEY MOVE NORTHEAST TOWARD
DRIGGS...PALISADES RESERVOIR AND BONE THROUGH 300 PM MDT.

LOCATIONS IMPACTED INCLUDE...
DRIGGS...SWAN VALLEY...PALISADES RESERVOIR...BLACKFOOT RESERVOIR...
RIRIE RESERVOIR...WAYAN...AMMON...VICTOR...RIRIE...IRWIN...
CHESTERFIELD...BONE...HENRY...CUTTHROAT TROUT CAMPGROUND...
TRAIL CREEK CAMPGROUND...HEISE...SMOKEY CANYON MINE...
MILL CANYON CAMPGROUND...GRAYS LAKE AND DIAMOND CREEK CAMPGROUND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
LIGHTNING CAN STRIKE 10 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 4261 11105 4282 11186 4330 11208 4368 11180
      4380 11118 4367 11104
TIME...MOT...LOC 2008Z 214DEG 17KT 4335 11197 4343 11155 4301 11112 

$$

HUSTON

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 28, 11:41 PM MDTSpecial Weather StatementPIHPower79 min
Sep 29, 3:23 PM MDTSpecial Weather StatementPIHCuster52 min

Nearby

Special Weather Statements in Idaho, 2016Every special weather statement 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.