871 
FXUS65 KPIH 262120
AFDPIH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
320 PM MDT WED MAY 26 2004

.DISCUSSION...
EASTERN HIGHLANDS CONTINUE TO BE FOCUS FOR PRECIP THIS AFTERNOON AS 
SFC FRONTAL BOUNDARY CONTINUES TO DRIFT THROUGH THE FCST AREA. FLOW 
TRANSITIONS TO FLAT RIDGE INTO THU WITH DEVELOPMENT OF TROF AND 
UPPER LOW IN PACIFIC. WARM ADVECTION CONTINUES THROUGH THE NIGHT 
WITH 12Z GFS INDICATING CONTINUING WARM ADVECTION OVERNIGHT THUS 
TEMPS ON A STEADY INCREASE. THU LOOKS TO BE FAIRLY ACTIVE AS HEIGHTS 
ALOFT TURN SOUTHEAST IN RESPONSE TO DEEPENING LOW IN PACIFIC. 
AIRMASS BECOMES UNSTABLE DURING AFTERNOON FOR POSSIBILITY OF 
THUNDERSTORMS WITH BEST CHANCES IN CENTRAL MTNS. WET/COOL PATTERN 
CONTINUES INTO FRIDAY WITH FROPA ASSOCIATED WITH UPPER TROF ON 
FRIDAY MORNING. U/L TROF AXIS LINGERS UNTIL LATE SATURDAY WITH 
DRYING RIDGE BUILDING IN BEHIND IT. NEXT SYSTEM FOR LATE SUNDAY 
COMING OUT OF BC CANADA THUS SHOULD BE SLIGHTLY DRIER. LATEST GFS 
RUNS ALSO TARGETING THIS SYSTEM FURTHER NORTH INTO MONTANA. RIDGE 
DEVELOPS OVER INTERMTN WEST FOR REMAINDER OF FCST AS U/L DEEPENS IN 
GULF ALASKA FOR DRY AND MILD CONDITIONS. DMH

&&

.PIH WATCHES/WARNING/ADVISORIES...NONE.  

&&

$$