FNUS76 KPQR 060612 FWSPQR SPOT FORECAST FOR SUBSTITUTE...USFS WNF NATIONAL WEATHER SERVICE PORTLAND OR 1112 PM PDT MON SEP 5 2011 FORECAST IS BASED ON REQUEST TIME OF 1859 PDT ON SEPTEMBER 05. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. ...FIRE WEATHER WATCH IN EFFECT FROM LATE TUESDAY NIGHT THROUGH THURSDAY EVENING... .DISCUSSION...TUESDAY WILL BE THE LEAST CRITICAL FIRE WEATHER DAY DURING THE NEXT 5 TO 7 DAYS. A DRY AND WARM AIR MASS WILL BE OVER THE FIRE TUESDAY WITH WEAK ONSHORE LOW LEVEL FLOW. FIRE WEATHER CONCERNS WILL BECOME MORE PRONOUNCED TUESDAY NIGHT AS ANOTHER SURFACE THERMAL TROUGH DEVELOPS ALONG THE SOUTH OREGON COAST. THIS THERMAL TROUGH WILL GRADUALLY MIGRATE NORTH AND EXPAND ACROSS THE FIRE ON WEDNESDAY. THIS WILL ALLOW LIGHT OFFSHORE WINDS TO DEVELOP LATE TUESDAY NIGHT. WINDS WILL BECOME MORE ERRATIC WEDNESDAY AFTERNOON WITH THE THERMAL TROUGH IN THE VICINITY OF THE FIRE. THUS...A FIRE WEATHER WATCH FOR DRY AND UNSTABLE CONDITIONS WILL BE IN EFFECT FOR THE FIRE AREA BEGINNING TUESDAY NIGHT. THE SECOND ISSUE CONCERNS THE POSSIBILITY OF DRY THUNDERSTORMS. OVERALL CONFIDENCE IS LOW REGARDING COVERAGE AND TIMING BUT THERE IS ENOUGH CONFIDENCE TO MENTION THE THREAT IN THE OREGON CASCADE ZONES THURSDAY. THE WATCH WILL CONTINUE THROUGH THURSDAY EVENING...FOR A COMBINATION OF DRY AND UNSTABLE CONDITIONS AND THE THREAT OF LIGHTNING. CHANCE OF WETTING RAIN (CWR) 0.25 INCHES OR GREATER. FORECAST WINDS ARE 10 MINUTE AVERAGES 20 FT ABOVE VEGETATION. THUNDERSTORMS IMPLY GUSTY AND ERRATIC WINDS. .TUESDAY... MAX TEMPERATURE.....AROUND 73-77. MIN HUMIDITY........30-35 PERCENT. WIND (20 FT)........LIGHT WIND EARLY...BECOMING UPSLOPE OR NORTHWEST 4-8 MPH BY MIDDAY. GUSTS 10-15 MPH DEVELOPING IN THE AFTERNOON. SKY/WEATHER.........SUNNY. TIME (PDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM TEMP............48 55 66 72 73 75 RH..............65 55 45 35 32 30 20 FT WIND......CALM VRB 1 S-SW 2 W 4 W-NW 6 W-NW 6 MAX GUST..... 5 10 15 15 .TUESDAY NIGHT... MIN TEMPERATURE.....51-54. MAX HUMIDITY........50-57 PERCENT. WIND (20 FT)........NORTHWEST 3 TO 7 MPH...BECOMING DOWNSLOPE/DRAINAGE 2 TO 4 MPH BY 2100. WIND BECOMING NORTHEAST 2 TO 6 AFTER 0300. SKY/WEATHER.........MOSTLY CLEAR. TIME (PDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM TEMP............72 67 62 58 56 54 RH..............32 35 44 49 54 52 20 FT WIND......NW 5 NW 3 NE 1 NE 2 NE 2-3 NE 2-6 MAX GUST..... 5 6 $$ FORECASTER...COLLINS REQUESTED BY...AMY HARPOLE REASON FOR REQUEST...WILDFIRE .TAG 20110905.SUBST.01/PQR