Severe Thunderstorm Warning 8, NWS Pocatello, ID

643 
WWUS55 KPIH 090055
SVSPIH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
655 PM MDT WED JUN 8 2016

IDC013-037-090104-
/O.EXP.KPIH.SV.W.0008.000000T0000Z-160609T0100Z/
CUSTER ID-BLAINE ID-
655 PM MDT WED JUN 8 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL CUSTER AND
NORTHWESTERN BLAINE COUNTIES WILL EXPIRE AT 700 PM MDT...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.

LAT...LON 4416 11455 4397 11428 4371 11468 4372 11468
      4374 11467 4375 11469 4380 11470 4381 11471
      4379 11476 4380 11480 4379 11483 4380 11486
      4382 11485 4383 11491
TIME...MOT...LOC 0053Z 224DEG 23KT 4380 11479 

$$

HEDGES

Area Forecast Discussion
National Weather Service Pocatello ID
201 PM MDT WED JUN 8 2016

.SHORT TERM...Tonight through Friday night. Upper short wave is
lifting across WA/OR and is triggering storms ahead of it.
Convection is slow to develop this afternoon over SE Idaho, but
convective initiation probabilities are increasing across the
Central Mountains as mid-level cap erodes. Strongest shear stays
in northern Idaho coincident with the SPC slight risk area.
Several models are suggesting overnight convection across the
Southeastern Highlands continuing through tomorrow morning
associated with a short wave lifting out of the Great Basin.
Upper trough offshore will deepen over the next couple of days,
but a dry, stable southwesterly flow will suppress most
convection. Expect somewhat stronger winds Thursday and Friday
as surface gradient increases. NAM MOS guidance puts us close to
lake wind advisory criteria tomorrow. Hinsberger

LONG TERM...Saturday through next Wednesday. A seasonably strong
upper trough will be approaching the region on Saturday, with broad
southwesterly flow in place preceding the trough. This will ensure
one more day of above-average temperatures for Sat. Scattered
showers and thunderstorms are expected to develop on Saturday due to
the enhanced lift associated with the trough. A couple of these
storms may be locally strong. The trough will pass overhead on
Sunday, sending a strong cold front across the region late Saturday
night into early Sunday, bringing additional showers and
thunderstorms along with an increase in winds and a significant drop
in temperatures. Temperatures are forecast to drop around 20 degrees
on Sunday when compared to Saturday. Drier conditions are expected
to take hold Monday. Another trough is expected to approach the Pac
NW coast Tue and Wed, forcing a transition back to SW flow across
our area, leading to a quick rebound in temperatures back to around
seasonal normals by mid-week. AD/Hinsberger

&&

.AVIATION...VFR conditions expected today with light terrain-driven
winds outside of convective activity. Convective-allowing models
generate a round of showers and thunderstorms over the Southern
Highlands this afternoon, passing through BYI late this afternoon.
This could lead to locally strong outflow winds, with a
consolidating outflow boundary proceeding up the Snake Plain this
evening. Confidence too low in evolution and timing to include in
TAFs ATTM, but will continue to monitor convective trends this aftn
and update as necessary. Cumulus field showing increased vigor acrs
the Central Mtns this afternoon, so an isolated shower or
thunderstorm not out of the question at KSUN either. Round of
showers possible between 06-12Z for Snake Plain sites, and have
included VCSH to account for this. Breezy winds develop by late
morning across the Snake Plain, with W-SW winds increasing to
15-25kts. AD/Hinsberger

&&

.PIH Watches/Warnings/Advisories...
None.
&&

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
331 PM MDT WED JUN 8 2016

IDZ032-082215-
LOST RIVER/PASHIMEROI ID-
331 PM MDT WED JUN 8 2016

...HALF INCH HAIL AND WINDS IN EXCESS OF 40 MPH AFFECTING EAST
CENTRAL CUSTER COUNTY UNTIL 415 PM MDT...

AT 328 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 18
MILES NORTHEAST OF CHILLY BARTON FLAT...MOVING NORTHEAST AT 20 MPH.

HALF INCH HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

IF OUTDOORS...SEEK A STURDY SHELTER IF YOU HEAR THUNDER FROM THIS
APPROACHING STORM.

LOCATIONS IMPACTED INCLUDE...
SUMMIT RESERVOIR AND BIG CREEK CAMPGROUND.

LAT...LON 4445 11366 4444 11359 4442 11353 4442 11350
      4445 11347 4445 11345 4441 11341 4438 11341
      4435 11336 4432 11335 4420 11375 4436 11388
      4447 11369
TIME...MOT...LOC 2128Z 239DEG 16KT 4433 11373

AD/HEDGES

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
611 PM MDT WED JUN 8 2016

IDZ018-031-090100-
SAWTOOTH MOUNTAINS ID-BIG AND LITTLE WOOD RIVER REGION ID-
611 PM MDT WED JUN 8 2016

...NICKEL SIZE HAIL AND WINDS IN EXCESS OF 45 MPH AFFECTING SOUTH
CENTRAL CUSTER AND NORTHWESTERN BLAINE COUNTIES UNTIL 700 PM MDT...

AT 610 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 12
MILES SOUTHEAST OF ATLANTA...MOVING NORTHEAST AT 35 MPH.

NICKEL SIZE HAIL AND WINDS IN EXCESS OF 45 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
GALENA LODGE...GALENA SUMMIT AND SMILEY CREEK AIRPORT.

LAT...LON 4411 11455 4388 11426 4369 11468 4372 11468
      4374 11467 4375 11469 4380 11470 4381 11471
      4379 11476 4380 11480 4379 11482 4379 11485
      4382 11485 4383 11491
TIME...MOT...LOC 0010Z 232DEG 31KT 4371 11490

HEDGES