Special Weather Statement, NWS Pocatello, ID

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
230 AM MDT SAT AUG 11 2012

.SHORT TERM...TODAY THROUGH MONDAY.
DRY AIR PUSHING IN FROM THE WEST AS UPPER RIDGE ALSO BUILDS TO THE
WEST. MOISTURE PUSHING EAST AS TROF WHICH BROUGHT THUNDERSTORMS
PUSHES THROUGH EASTERN MONTANA AND WYOMING. EXPECT DRY CONDITIONS
TODAY AS WELL AS SUNDAY AS THE UPPER RIDGE CONTINUES TO DOMINATE
CONDITIONS. NAM BRINGS IN A BIT OF MOISTURE ON MONDAY AND RETURNED
A SLIGHT CHANCE OF THUNDERSTORMS THEN BUT NOT EXPECTING MUCH
PRECIPITATION AT ALL. WILL HAVE SLIGHTLY COOLER CONDITIONS TODAY
BEHIND THE TROF BUT STILL ABOVE SEASONAL NORMALS. WARMING AGAIN
SUNDAY AND MONDAY AS THE WARM SUMMER CONTINUES.
GK

.LONG TERM...TUESDAY THROUGH SATURDAY.
BOTH GFS AND EUROPEAN MODELS INDICATE A TROF MOVING THROUGH
TUESDAY AND WEDNESDAY WITH THE EUROPEAN STRONGER WITH IT. IN ANY
CASE HAVE SOME COOLER TEMPERATURES WEDNESDAY AND THURSDAY BEHIND
THE SYSTEM. SHOULD BE PRETTY DRY BUT KEPT IN ISOLATED CONVECTION
IN GRIDS MAINLY IN MOUNTAINS THROUGH THE PERIOD.
GK

&&

.AVIATION...UPPER TROUGH AXIS ADVANCING THROUGH SOUTH-CNTRL IDAHO
EARLY THIS MORNING WITH ATTENDING CLOUD COVER GENERALLY CLEARING
FROM THE SNAKE PLAIN EASTWARD. ANTICIPATE VFR/CLEAR CONDITIONS
TODAY. HUSTON
&&

.FIRE WEATHER...UPPER TROUGH AXIS WORKING EAST THROUGH SOUTH-CNTRL
IDAHO THIS MORNING WITH SKIES CLEARING FROM WEST TO EAST ACROSS THE
REGION. EXPECTING DRY CONDITIONS TO PREVAIL THROUGH SUNDAY AS
SUB-TROPICAL MOISTURE POOLS OVER SRN/CNTRL NEVADA. A GENERAL INFLUX
OF MOISTURE WILL SEEP NORTH ACROSS THE SRN BORDER MONDAY AS A
PACIFIC DISTURBANCE SHIFTS EAST THROUGH THE NW TERRITORIES. LITTLE
CHANGE IS ANTICIPATED TUESDAY AS THE SRN EXTENT OF THE CANADIAN
TROUGH BEGINS TO DIG SOUTH TOWARD THE IDAHO PANHANDLE. MODELS DIFFER
IN REGARD TO HOW FAR NORTH CONVECTION MAY EXTEND MONDAY AND THUS
HAVE MAINTAINED AT LEAST A SLIGHT CHANCE MENTION WITHIN THE CNTRL
MOUNTAINS MONDAY AND TUESDAY. PASSING TROUGH SHOULD HELP TO JUICE
WINDS SOME WEDNESDAY...PERHAPS APPROACHING GUST CRITERIA IN CNTRL
MOUNTAINS AND MAYBE SNAKE PLAIN. MODEST RIDGE REBOUNDS ACROSS THE
REGION THURSDAY WITH AN INFLUX OF MOISTURE WORKING NORTH INTO OREGON
FRIDAY AND THEN EWRD ACROSS SRN IDAHO SATURDAY WITH SCATTERED
THUNDERSTORM ACTIVITY ANTICIPATED. HUSTON
&&

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

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE POCATELLO ID
408 AM MDT SAT AUG 11 2012

IDZ017>025-031-032-121015-
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-
408 AM MDT SAT AUG 11 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN IDAHO.

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. MAY SEE
SOME ISOLATED THUNDERSTORMS MONDAY THROUGH FRIDAY.

.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
621 AM MDT SAT AUG 11 2012

IDZ023-111300-
CARIBOU ID-BINGHAM ID-BONNEVILLE ID-
621 AM MDT SAT AUG 11 2012

THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A

SIGNIFICANT WEATHER ADVISORY FOR...
  SOUTHEASTERN BONNEVILLE COUNTY IN SOUTHEAST IDAHO
  SOUTHEASTERN BINGHAM COUNTY IN SOUTHEAST IDAHO
  NORTHEASTERN CARIBOU COUNTY IN SOUTHEAST IDAHO

UNTIL 700 AM MDT

AT 613 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 14 MILES NORTHWEST OF HENRY..MOVING EAST AT 30
MPH.

WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH
FREQUENT DANGEROUS LIGHTNING.

LOCATIONS IMPACTED INCLUDE...
   WAYAN...

LAT...LON 4276 11105 4301 11173 4318 11167 4323 11103
      4277 11103
TIME...MOT...LOC 1221Z 285DEG 24KT 4307 11158

GK