Weather Service Report


198 
FXUS65 KPIH 240759
AFDPIH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
159 AM MDT FRI OCT 24 2014

.DISCUSSION...WV/IR IMAGERY CONTINUES TO SHOW MOISTURE TRANSPORT 
INTO THE PAC NW THIS MORNING. UPPER TROUGH IS CARVING OUT AROUND 
140W SIGNALING AN AMPLIFICATION OF THE DOWNSTREAM RIDGE OVER THE 
WEST. MODELS SHOW THIS AMPLIFICATION WILL RESULT IN THE MOISTURE 
SHIFTING TO THE NORTH LATER THIS AFTERNOON WITH WARMER TEMPERATURES 
TODAY AND TOMORROW. THE PATTERN WILL QUICKLY SHIFT SATURDAY NIGHT 
WITH THE PACIFIC TROUGH LIFTING ACROSS THE REGION BRINGING A SURFACE 
COLD FRONT ACROSS SOUTHEAST IDAHO. WITH DECENT MODEL 
AGREEMENT...HAVE INCREASED POPS OVER MUCH OF SOUTHEAST IDAHO FOR 
SUNDAY. SNOW LEVELS SHOULD ALSO BE DROPPING TO 6500 TO 7000 FT 
SUNDAY MORNING...THEN AROUND 5000 FT BY SUNDAY EVENING. THE PEAKS OF 
THE SAWTOOTHS MAY SEE ABOUT 3 TO 6 INCHES OF SNOWFALL OVER THE 
WEEKEND.

MODELS TREND A BIT DRIER STARTING EARLY NEXT WEEK AS A LOW-AMPLITUDE 
UPPER RIDGE MOVES INTO THE PAC NW...BUT ARE TRYING TO DRIVE ANOTHER 
UPPER SHORT WAVE INTO THE AREA TUESDAY NIGHT. THE MODELS DO INDICATE 
A BIT OF UNCERTAINTY HEADING INTO THE LATTER PART OF THE WEEK...SO 
MADE ONLY MINOR CHANGES IN EXTENDED PERIODS.  HINSBERGER
&&

.AVIATION...A FEW LIGHT SHOWERS ARE POSSIBLE THIS MORN AROUND 
KSUN...BUT UPPER RIDGING BUILDING OVER THE ROCKIES TODAY WILL PUSH 
ANY LINGERING MOISTURE TO THE NORTH OF THE AREA. VFR CONDITIONS WILL 
PREVAIL THRU TONIGHT. HEDGES
&&

.FIRE WEATHER...A FEW SHOWERS ARE POSSIBLE IN THE CENTRAL IDAHO 
MOUNTAINS THROUGH THIS AFTERNOON. BUILDING UPPER RIDGING TODAY WILL 
PUSH LINGERING PACIFIC MOISTURE TO THE NORTH BY THIS EVENING... 
RESULTING IN DRY AND WARMER CONDITIONS THROUGH SATURDAY. A STRONG 
PACIFIC STORM SYSTEM WILL MOVE INTO THE PAC NW BY SATURDAY MORNING. 
THIS SYSTEM WILL INCREASE SOUTHERLY WINDS BY TONIGHT...ESPECIALLY AT 
RIDGE TOPS. SOUTHERLY WINDS WILL CONTINUE TO INCREASE ON SATURDAY. 
PRECIPITATION WILL MOVE INTO THE MOUNTAINS SATURDAY NIGHT...THEN 
SPREAD ACROSS THE REST OF THE AREA ON SUNDAY. STRONG SW WINDS WILL 
CONTINUE ON SUNDAY. SNOW LEVELS WILL START OUT FAIRLY HIGH SATURDAY 
NIGHT...THEN FALL TO AROUND 6000FT BY SUNDAY EVENING. SHOWERY AND 
COOL CONDITIONS WILL CONTINUE THROUGH MID WEEK...WITH A BREAK IN THE 
PRECIPITATION MONDAY NIGHT. HEDGES
&&

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

$$


Return to Home page


Western Regional Climate Center, wrcc@dri.edu