Special Weather Statement, NWS Pocatello, ID

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
201 PM MDT TUE AUG 9 2011

.DISCUSSION...WEAK UPPER TROUGH SLIPPING THROUGH PANHANDLE ALONG
DIVIDE INTO MONTANA THIS AFTERNOON. CONVECTION FIRING IN COMPLEX
TERRAIN OVER CENTRAL MTS AND ALONG DIVIDE PER SAT AND RADAR
IMAGERY. SOUNDINGS INDICATE DRY LOWER LEVELS FOR POTENTIAL FOR
GUSTY WINDS. CONVECTION TO LINGER AND MOVE EAST THROUGH THIS
EVENING BUT NOT MUCH EXPECTED PAST MIDNIGHT AS SHORTWAVE WILL BE
WELL EAST OF THE REGION BY THEN. A BIT OF MOISTURE MAY LINGER
WEDNESDAY AFTERNOON AND EVENING FOR ADDITIONAL CONVECTION ALONG
THE DIVIDE AS NEXT PACNW SHORTWAVE TROUGH EJECTS NORTHEAST ACROSS
THE PANHANDLE. HAVE KEPT WEAK POPS ALONG NORTHERN BORDER BUT REST OF
EASTERN IDAHO SHOULD REMAIN DRY. UPPER RIDGE BUILDS INTO EASTERN
IDAHO FOR THURSDAY THROUGH SATURDAY WITH DRY AND WARMING
CONDITIONS ACROSS THE FORECAST AREA. MODELS CONTINUE TO TREND
WETTER WITH NORTHWARD SURGE OF MONSOONAL MOISTURE BY SUNDAY.
CONTINUED TREND OF NUDGING FORECAST POPS UPWARD FOR SUNDAY AND
BEYOND. DMH

&&

.AVIATION...DEVELOPMENT IN NORTHERN SNAKE RIVER PLAIN NOT PRODUCING
MUCH IF ANY LIGHTNING AT 130 PM.  FOR NOW JUST KEPT MENTION OF CB IN
TAF SITES WITHOUT ANY TSTMS.  CLOSEST THUNDERSTORM ACTIVITY SHOULD
BE TO IDA AND MAY NEED TO INCLUDE MORE SO THERE IF ANYWHERE BUT WILL
MONITOR CLOSELY.  VFR CONDITIONS WILL DOMINATE THROUGH WEDNESDAY.
GK

&&

.FIRE WEATHER...BROAD UPPER TROF REMAINS OVER DISTRICT TODAY AND
EXPECT ISOLATED TO WIDELY SCATTERED THUNDERSTORMS MAINLY OVER
475...476...477...410 AND 411 THIS EVENING.  EXPECT MOST ACTIVITY
WEDNESDAY TO BE IN SAME REGION WITH A COLD FRONTAL PASSAGE IN THE
EVENING WITH WEAK UPPER TROF.  EXPECT BREEZIEST CONDITIONS ON
THURSDAY BEHIND COLD FRONT.  COOLER THAN NORMAL TEMPERATURES WILL
KEEP HUMIDITY VALUES ELEVATED THROUGH FRIDAY WITH DRIER AND WARMER
CONDITIONS MOVING IN SATURDAY AND SUNDAY.
GK

&&

.PIH WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE POCATELLO ID
515 AM MDT TUE AUG 9 2011

IDZ017>025-031-032-101115-
EASTERN MAGIC VALLEY-SAWTOOTH MOUNTAINS-UPPER SNAKE HIGHLANDS-
UPPER SNAKE RIVER PLAIN-LOWER SNAKE RIVER PLAIN-
SOUTH CENTRAL HIGHLANDS-CARIBOU HIGHLANDS-
CACHE VALLEY/IDAHO PORTION-WASATCH MOUNTAINS/IDAHO PORTION-
BIG AND LITTLE WOOD RIVER REGION-LOST RIVER/PAHSIMEROI-
515 AM MDT TUE AUG 9 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN IDAHO.

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

SCATTERED THUNDERSTORMS ARE EXPECTED TODAY OVER THE CENTRAL IDAHO
MOUNTAINS AND THE UPPER SNAKE HIGHLANDS. GUSTY WINDS AND SMALL
HAIL WILL BE POSSIBLE WITH SOME OF THESE THUNDERSTORMS LATER THIS
AFTERNOON AND EVENING.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

WE ASK TRAINED SPOTTERS AND CITIZENS TO REPORT SIGNIFICANT
WEATHER CONDITIONS WHEN IT IS SAFE TO DO SO. THESE CONDITIONS MAY
INCLUDE HAIL...TORNADOES...STRONG WIND...DUST STORMS...SNOWFALL...
EXTREME COLD TEMPERATURES...FREEZING RAIN OR HEAVY RAIN...DENSE
FOG...AND FLOODING OR ICE JAMS. INFORMATION ABOUT THESE HAZARDOUS
CONDITIONS SHOULD BE CALLED INTO YOUR NATIONAL WEATHER SERVICE
OFFICE IN POCATELLO USING THE 1-800 SEVERE WEATHER HOTLINE...OR
208-233-0834.

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
206 PM MDT TUE AUG 9 2011

IDZ020-092130-
JEFFERSON ID-BINGHAM ID-BUTTE ID-BONNEVILLE ID-
206 PM MDT TUE AUG 9 2011

THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A

SIGNIFICANT WEATHER ADVISORY FOR...
  EAST CENTRAL BUTTE COUNTY IN EAST CENTRAL IDAHO
  NORTHWESTERN BONNEVILLE COUNTY IN SOUTHEAST IDAHO
  NORTH CENTRAL BINGHAM COUNTY IN SOUTHEAST IDAHO
  SOUTHERN JEFFERSON COUNTY IN SOUTHEAST IDAHO

UNTIL 330 PM MDT

AT 200 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 7 MILES EAST OF CENTRAL INL..MOVING EAST AT 20
MPH.

HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
   SOUTHEAST INL...
   OSGOOD...

LAT...LON 4328 11220 4328 11237 4347 11301 4384 11284
      4381 11202
TIME...MOT...LOC 2006Z 278DEG 17KT 4362 11276

DMH