FNUS76 KPQR 192142 FWSPQR SPOT FORECAST FOR SHADOW LAKE...USFS WNF NATIONAL WEATHER SERVICE PORTLAND OR 242 PM PDT MON SEP 19 2011 FORECAST IS BASED ON REQUEST TIME OF 1357 PDT ON SEPTEMBER 19. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. ...WARM AND DRY NEXT COUPLE OF DAYS... .DISCUSSION...HIGH PRESSURE ALOFT WILL BE CENTERED OVER THE FIRE AREA LATE TONIGHT AND TUESDAY MORNING...THEN SHIFT TO EASTERN OREGON BY LATE TUESDAY AFTERNOON. DAYTIME TEMPERATURES THE NEXT COUPLE OF DAYS WILL BE A LITTLE ABOVE NORMAL. MINIMAL SURFACE GRADIENTS AND WEAK MID-LEVEL WIND FLOW WILL RESULT IN TERRAIN DRIVEN WIND PATTERNS THROUGH WEDNESDAY. IN THE EXTENDED PERIOD...A WEATHER DISTURBANCE MOVING ACROSS WESTERN WASHINGTON LATE WEDNESDAY NIGHT WILL ALLOW A LITTLE MORE ONSHORE FLOW TO DEVELOP THURSDAY. HOWEVER...HIGH PRESSURE STRENGTHENS AGAIN FRIDAY AND SHOULD HOLD THROUGH SATURDAY. A WEAK SURFACE THERMAL TROUGH MAY FORM SOMEWHERE NEAR THE CASCADES FRIDAY AFTERNOON. ALTHOUGH WIND SHOULD NOT BE MUCH OF A CONCERN... MODERATE MID AND HIGH LEVEL HAINES INDICES COULD DEVELOP. THE UPPER RIDGE EVENTUALLY STARTS TO BREAK DOWN SUNDAY OR EARLY NEXT WEEK. .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR. PATCHY VALLEY FOG OVERNIGHT. CWR (%).............0 PERCENT. MIN TEMPERATURE.....45 TO 50...BUT 50 TO 55 ON MID/UPPER SLOPES. MAX HUMIDITY........AT OR ABOVE 85 PERCENT...BUT DOWN TO 60 PERCENT MID/UPPER SLOPES AND RIDGES. WIND (20 FT)........VALLEYS/LOWER SLOPES: WEST 5 TO 10 MPH THROUGH ABOUT 1900 THEN BECOMING EAST OR DOWN-SLOPE TO 5 MPH BY 2100. RIDGES: SOUTHWEST TO WEST 3 TO 8 MPH. HAINES INDEX(HIGH)..4 (LOW). .TUESDAY... SKY/WEATHER.........SUNNY. PATCHY FOG IN THE MORNING. CWR (%).............0 PERCENT. MAX TEMPERATURE.....78 TO 83...BUT MID 70S AT 5000 FEET MSL. MIN HUMIDITY........30 TO 35 PERCENT...BUT TO 25 PERCENT EXPOSED RIDGES AND ON SOUTH ASPECTS. WIND (20 FT)........VALLEYS/LOWER SLOPES: EAST TO 5 MPH EARLY THEN WEST OR UP-SLOPE 5 TO 10 MPH. RIDGES: WEST TO NORTHWEST AROUND 5 MPH. HAINES INDEX(HIGH)..4 (LOW). FORECAST BELOW IS BASED ON PRAWS... TIME (PDT) 8 AM 10 AM NOON 2 PM 4 PM TEMP............50 62 74 78 81 RH..............85 62 42 33 28 20 FT WIND......SW-W 0-4 SW-W 2-6 SW-W 2-7 W 3-8 W 5-10 MAX GUST..... 10 10 10 .WEDNESDAY... SKY/WEATHER.........SUNNY BUT SOME HIGH CLOUDS. PATCHY VALLEY FOG IN THE MORNING. CWR (%).............0 PERCENT. MAX TEMPERATURE.....78 TO 83...BUT MID 70S AT 5000 FEET MSL. MIN HUMIDITY........30 TO 35 PERCENT...BUT TO 25 PERCENT EXPOSED RIDGES AND ON SOUTH ASPECTS. WIND (20 FT)........VALLEYS/LOWER SLOPES: EAST TO 5 MPH EARLY THEN WEST OR UP-SLOPE 5 TO 10 MPH. RIDGES: SOUTHWEST TO WEST 4 TO 8 MPH. HAINES INDEX(HIGH)..4 (LOW). .EXTENDED FORECAST THURSDAY THROUGH SATURDAY... .THURSDAY...MOSTLY SUNNY. HIGHS 75 TO 80...BUT 65 TO 70 AT 5000 FEET. MINIMUM RH 30 TO 40 PERCENT. LIGHT WIND. .THURSDAY NIGHT...PARTLY CLOUDY. LOWS 50 TO 55...BUT 45 TO 50 ELEVATED VALLEYS AND TO THE UPPER 50S ON MID/UPPER SLOPES. .FRIDAY...MOSTLY SUNNY. HIGHS 78 TO 83...BUT 72 TO 77 AT 5000 FEET. MINIMUM RH 27 TO 35 PERCENT. LIGHT WIND. .FRIDAY NIGHT...PARTLY CLOUDY. LOWS 50 TO 55...BUT TO THE UPPER 50S ON MID/UPPER SLOPES AND 40 TO 45 ELEVATED VALLEYS. .SATURDAY...PARTLY CLOUDY. HIGHS 74 TO 79...BUT 69 TO 73 NEAR 5000 FEET. MINIMUM RH 32 TO 40 PERCENT. LIGHT WIND. $$ FORECASTER...WEISHAAR REQUESTED BY...PLANNING OPS REASON FOR REQUEST...WILDFIRE .TAG 20110919.SHADO.01/PQR