000 FXUS66 KPDT 161754 AAB AFDPDT AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PENDLETON OR 955 AM PST MON FEB 16 2009 UPDATED AVIATION DISCUSSION .SHORT TERM...LATEST IR SATL WAS SHOWING SOME SHOWERS DEVELOPING ACROSS NORTH CENTRAL OREGON ALONG WITH THE GORGE AND CENTRAL OREGON. THIS IS IN RESPONSE TO STRONG LOW PRESSURE OFF THE CALI COAST THAT IS PUMPING UP MOISTURE INTO OUR AREA. THE SHOWERS MAY EXPAND IN COVERAGE ACROSS NORTH CENTRAL OREGON AND SOUTH CENTRAL WA AS THE DAY PROGRESSES AND THIS MAY NEED ADJUSTING. ALSO SOME SNOW SHOWERS WERE FALLING ACROSS THE HIGHEST ELEVATIONS OF THE BLUES MTNS. IN ADDITION AREAS OF FOG AND FRZG FOG PERSIST ACROSS THE FOOTHILLS OF THE BLUE MTNS AND CENTRAL OREGON AND WILL LET THIS CONTINUE THIS MORNING. OTHERWISE THE REMAINDER OF THE FORECAST APPEARS ON TRACK FOR NOW. && .AVIATION DISCUSSION...18Z TAFS...AREAS OF FOG AND LOW CLOUDS WILL PERSIST THROUGH EARLY AFTERNOON OVER MOST AREAS...ESPECIALLY AT KPDT AND KALW...CAUSING PERIODS OF MVFR/IFR CONDITIONS. CONDITIONS WILL IMPROVE BY LATE AFTERNOON WITH ALL AREAS VFR. THE LOW LEVEL MOISTURE LEFT BEHIND RECENT PRECIPITATION COMBINED WITH SOME CLEARING TONIGHT AND LIGHT WINDS WILL ALLOW MVFR AND POSSIBLY IFR CONDITIONS TO REDEVELOP OVERNIGHT TONIGHT. WINDS WILL REMAIN LIGHT AND UNDER 10 KTS THROUGH TUESDAY MORNING. 88 && .PRELIMINARY POINT TEMPS/POPS... PDT 41 31 43 31 / 10 10 10 20 ALW 39 31 45 33 / 10 10 10 20 PSC 42 30 45 30 / 10 10 10 10 YKM 40 30 45 29 / 10 10 10 10 HRI 42 33 45 31 / 10 10 10 10 ELN 39 30 45 28 / 10 10 10 0 RDM 40 28 42 27 / 20 40 30 10 LGD 39 26 41 29 / 10 10 30 20 GCD 38 25 41 27 / 20 30 40 20 DLS 41 35 45 33 / 10 10 20 10 && .PDT WATCHES/WARNINGS/ADVISORIES... OR...FREEZING FOG ADVISORY UNTIL 10 AM PST THIS MORNING FOR ORZ042- 043. DENSE FOG ADVISORY UNTIL 10 AM PST THIS MORNING FOR ORZ501. WA...DENSE FOG ADVISORY UNTIL 10 AM PST THIS MORNING FOR WAZ029. && $$ TI:GGG FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT... WWW.WEATHER.GOV/PENDLETON 97/88