FNUS76 KPDT 211304 FWSPDT SPOT FORECAST FOR KIWI PINE...USFS NATIONAL WEATHER SERVICE PENDLETON OR 604 AM PDT TUE APR 21 2009 FORECAST IS BASED ON IGNITION TIME OF 1000 PDT ON APRIL 21. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...HIGH PRESSURE WILL REMAIN OVER THE AREA TODAY WITH MOSTLY SUNNY AND WARM CONDITIONS. ISOLATED THUNDERSTORMS ARE POSSIBLE LATE THIS AFTERNOON AND EVENING AS THE AIRMASS BECOMES UNSTABLE. AN UPPER LEVEL TROUGH WILL BE APPROACHING ON WEDNESDAY AND WILL BRING INCREASING WINDS DURING THE AFTERNOON AND EVENING ALONG WITH COOLER TEMPERATURES. ***THUNDERSTORMS IMPLY GUSTY AND ERRATIC WINDS*** ***WINDS ARE 20 FOOT 10 MINUTE AVERAGES*** ***CWR-CHANCE OF WETTING RAIN 0.10 OR GREATER*** ***FORECAST IS VALID FOR 12 HOURS AFTER ISSUANCE*** .TODAY... MAX TEMPERATURE.....80. MIN HUMIDITY........17 PERCENT. WIND (20 FT)........UPSLOPE WINDS 2-4 MPH BECOMING NORTHWEST 4-6 MPH BY 1400...THEN INCREASING TO 6-9 MPH AFTER 1600. MIXING HEIGHT.......500 FT AGL UNTIL 1000 THEN INCREASING TO 10500 FT AGL BY MID AFTERNOON. TEMPERATURE HUMIDITY 20-FT WIND (MPH) 1000 62 37 SE-E 1-3 1200 72 24 E-NE 2-4 1400 80 17 NW 4-6 1600 79 17 W-NW 7-9 .TONIGHT... MIN TEMPERATURE.....39-41. MAX HUMIDITY........70-75 PERCENT. WIND (20 FT)........WEST TO NORTHWEST WINDS 6-9 MPH BECOMING DRAINAGE 2-4 MPH BY 2200. MIXING HEIGHT.......10500 FT AGL DECREASING TO 500 FT AGL BY MIDNIGHT. .WEDNESDAY... MAX TEMPERATURE.....68-70. MIN HUMIDITY........22-25 PERCENT. WIND (20 FT)........UPSLOPE WINDS 2-4 MPH BECOMING WEST TO NORTHWEST WINDS 4-7 MPH AFTER 1200...THEN INCREASING TO 9-12 MPH AFTER 1400. MIXING HEIGHT.......500 FT AGL UNTIL 1000 THEN INCREASING TO 5500 FT AGL BY MID AFTERNOON. $$ FORECASTER...GKH REQUESTED BY...PHIL HENDERSON TYPE OF REQUEST...PRESCRIBED .TAG 20090421.KIWIP.01/PDT