FXUS65 KPIH 302059
AFDPIH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
159 PM MST MON NOV 30 2009

.SHORT TERM...TONIGHT THROUGH THURSDAY.

A COLD FRONT IS ENTERING NORTHWEST WASHINGTON THIS AFTERNOON. THIS
FRONT WILL PASS THROUGH THE REGION TONIGHT. LITTLE PRECIPITATION
IS EXPECTED WITH THIS SYSTEM AS MOST OF THE ENERGY WILL PASS NORTH
OF THE REGION. LOW CLOUDS ARE EXPECTED TO DEVELOP BEHIND THE FRONT
LATE TONIGHT IN THE UPPER SNAKE PLAIN AND PERSIST THROUGH THE
MORNING HOURS ON TUESDAY. BOTH NAM AND GFS ARE SHOWING A DEEP
UPPER TROUGH DEVELOPING OVER THE UPPER PLAINS AND IT NOW LOOKS AS
IF THE REGION IS GOING TO TAP INTO SOME OF THE COLDER AIR. HAVE
LOWERED TEMPS BEGINNING TUESDAY NIGHT BUT CONTINUE THROUGHOUT THE
REMAINDER OF THE FORECAST.

.LONG TERM...THURSDAY NIGHT THROUGH MONDAY.

EUROPEAN AND GFS ARE SLOWLY COMING TOWARDS A CONSENSUS IN THE
FORECAST...BUT NOT QUITE THERE YET. EXPECT TEMPS TO WARM ON
THURSDAY AS UPPER RIDGE BUILDS OVER THE REGION. GFS CONTINUES TO
BE FASTER IN BREAKING DOWN THE RIDGE WITH A COLD FRONT ARRIVING ON
FRIDAY WHILE THE EUROPEAN KEEPS THE RIDGE IN TACT UNTIL SATURDAY.
REGARDLESS...NOW LOOKS LIKE ANOTHER SHOT OF COLD AIR WILL ARRIVE
OVER THE WEEKEND AND PERSIST INTO EARLY NEXT WEEK. BECAUSE OF THE
DIFFERENCES BETWEEN THE MODELS...STILL DIFFICULT TO GAIN A HANDLE
ON PRECIPITATION DURING THIS TIME. UNFORTUNATELY WILL HAVE TO
CONTINUE A VERY GENERAL CHANCE TYPE OF FORECAST REGARDING PRECIP
THROUGH MUCH OF THE EXTENDED.

&&

.AVIATION...VFR CONDITIONS ARE EXPECTED FOR THE REMAINDER OF THE
AFTERNOON. A COLD FRONT WILL PASS THROUGH THE REGION LATE TONIGHT
AND EXPECT LOW CLOUDS WITH IFR CEILINGS TO DEVELOP BEHIND THE
FRONT OVER THE UPPER SNAKE PLAIN. THIS WILL MOST LIKELY IMPACT
KIDA...PERHAPS KPIH.

&&

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

$$