AFDPDT AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PENDLETON OR 1018 PM PDT SUN SEP 25 2022 .UPDATED AVIATION DISCUSSION .AVIATION...06Z TAFS...VFR CONDITIONS CONTINUE OVER THE NEXT 24 HOURS. WINDS REMAIN DIURNAL, WITH SPEEDS BETWEEN 5 TO 10 KTS, THOUGH BDN AND RDM MAY SEE GUSTS TO AROUND 15 KTS TOMORROW AFTERNOON. GOATLEY/87 && .PREV DISCUSSION... /ISSUED 731 PM PDT SUN SEP 25 2022/ EVENING UPDATE...CURRENT SATELLITE AND RADAR IMAGERY ARE SHOWING CLEAR SKIES AGAIN THIS EVENING. THE UPPER LEVEL RIDGE HAS SETTLED IN OVER THE REGION AND CONDITIONS WILL REMAIN DRY THROUGH THE SHORT TERM. MODELS ARE IN AGREEMENT THAT THE SURFACE THERMAL LOW WILL SHIFT FROM THE WEST AND MOVE OVER THE CWA TOMORROW CAUSING AN INCREASE IN TEMPERATURES TOMORROW. EXPECT TEMPERATURES TO BE ABOUT 10 DEGREES ABOVE SEASONAL NORMAL AND IN THE MID TO HIGH 80S FOR MUCH OF THE CWA AND MID TO HIGH 70S FOR THE HIGHER TERRAINS. BENNESE/90 PREV DISCUSSION... /ISSUED 137 PM PDT SUN SEP 25 2022/ SHORT TERM...TONIGHT THROUGH TUESDAY...AN UPPER LEVEL RIDGE OF HIGH PRESSURE WILL REMAIN OVER THE REGION THE NEXT COUPLE OF DAYS. IT WILL BEGIN TO SLOWLY MOVE TO THE EAST AS AN UPPER LEVEL TROUGH FROM THE GULF OF ALASKA BEGINS TO APPROACH THE COAST. THE SURFACE THERMAL TROUGH IS ALONG THE COAST TODAY BUT WILL BE SHIFTING OVER EASTERN OREGON AND WASHINGTON. THIS WILL BOOST TEMPERATURES A COUPLE OF MORE DEGREES RESULTING IN HIGH TEMPERATURES RUNNING 10 TO 15 DEGREES ABOVE NORMAL MONDAY AND TUESDAY. WINDS WILL REMAIN LIGHT THROUGH THE SHORT TERM. LONG TERM...WEDNESDAY THROUGH SUNDAY...THE UPPER LEVEL TROUGH OFF THE COAST WILL BEGIN TO MOVE INLAND ON WEDNESDAY. THIS WILL USHER IN COOLER BREEZY CONDITIONS ACROSS THE FORECAST AREA WITH A FEW SHOWERS MAINLY ALONG THE CASCADES. AS THE TROUGH PROGRESSES EAST THERE WILL A FEW SHOWERS POSSIBLE OVER THE EASTERN MOUNTAINS WEDNESDAY NIGHT AND THURSDAY. THE TROUGH WILL EXIT THE REGION LATE THURSDAY WITH SHOWERS ENDING LATE DAY. ANOTHER RIDGE OF HIGH PRESSURE WILL BEGIN TO REBUILD OVER THE REGION FRIDAY THROUGH SUNDAY WITH ANOTHER UPPER LEVEL TROUGH APPROACHING THE COAST LATE IN THE WEEKEND. DETERMINISTIC MODELS HAVE SOME MAJOR DIFFERENCES WITH THE PLACEMENT OF THIS TROUGH. HOWEVER, ENSEMBLE MODELS AGREE THE TROUGH STAYS OFFSHORE THROUGH AT LEAST SUNDAY WITH THE FORECAST AREA UNDER A DRY SOUTHWEST FLOW. && .PRELIMINARY POINT TEMPS/POPS... PDT 47 85 51 87 / 0 0 0 0 ALW 50 86 54 88 / 0 0 0 0 PSC 52 85 55 87 / 0 0 0 0 YKM 49 84 52 88 / 0 0 0 0 HRI 50 87 54 88 / 0 0 0 0 ELN 45 83 48 88 / 0 0 0 0 RDM 39 87 41 87 / 0 0 0 0 LGD 44 86 45 88 / 0 0 0 0 GCD 40 89 43 91 / 0 0 0 0 DLS 53 89 56 90 / 0 0 0 0 && .PDT WATCHES/WARNINGS/ADVISORIES... OR...NONE. WA...NONE. &&