Local Forecast Discussion
000 FXUS65 KPIH 112055 AFDPIH AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE POCATELLO ID 200 PM MST THU MAR 11 2010 .SHORT TERM...TONIGHT THROUGH SUNDAY. THE LATEST SATELLITE IMAGERY WAS CLEARLY SHOWING A DIRTY (MOIST) SHORT-WAVE RIDGE BUILDING OVERHEAD THIS AFTERNOON IN ADVANCE OF THE NEXT PAC STORM SYSTEM. THE MODELS REMAIN CONSISTENT WITH THE IDEA THAT AS THE TROUGH MOVES INLAND FRIDAY NIGHT...IT WILL UNDERGO A SPLIT WITH A CLOSED LOW DIVING SOUTH INTO SRN NEVADA SATURDAY AND PROGRESSING INTO THE FOUR-CORNERS REGION SUNDAY AS A RIDGE REDEVELOPS OVER THE NW STATES. THE OVERWHELMING CONSENSUS AMONG THE MODELS PORTRAYS THIS SPLIT DEVELOPING TO OUR WEST WITH THE MAIN LOW DIVING WELL SOUTH OF THE REGION AS PREVIOUS SYSTEMS HAVE DONE THIS WINTER. THE GREATEST SNOW ACCUMULATIONS ARE EXPECTED ACROSS THE WRN MOUNTAIN ZONES...PEAKING WITHIN ADVISORY LEVELS. THUS THE WINTER STORM WATCH HAS BEEN CANCELLED. EXPECT WARM SPRING LIKE TEMPERATURES AHEAD OF THE APPROACHING SYSTEM FRIDAY WITH COOLING FOLLOWING SATURDAY AND SUNDAY AS THE SYSTEM PASSES THROUGH THE REGION. HUSTON .LONG TERM...SUNDAY NIGHT THROUGH THURSDAY NIGHT. GENERALLY INACTIVE EARLY IN THE PERIOD WITH ALL MODELS INDICATING LARGE UPPER RIDGE MOVING WEST TO EAST THROUGH REGION SUNDAY THROUGH TUESDAY. UPPER TROF MAY SET UP THURSDAY AND NEXT CHANCE OF PRECIPITATION WILL BE WEDNESDAY WITH WEAK INITIAL TROF SLIDING NORTH WEDNESDAY. EXPECT SLIGHTLY ABOVE NORMAL TEMPERATURES MONDAY THROUGH WEDNESDAY. GK && .AVIATION...EXPECT VFR CONDITIONS THROUGH FRIDAY AT ALL TAF SITES. GK && .PIH WATCHES/WARNINGS/ADVISORIES...NONE. && $$
NWS PIH Office Area Forecast Discussion