Rock Creek Reservoir Weather

 
 FNUS56 KPDT 291556
 FWFPDT
 
 FIRE WEATHER PLANNING FORECAST FOR NE OREGON AND SE WASHINGTON
 NATIONAL WEATHER SERVICE PENDLETON OR
 900 AM PDT THU JUL 29 2010
 
 ...ISOLATED THUNDERSTORMS TODAY AND A BETTER CHANCE OF THUNDERSTORMS 
 ON FRIDAY...
 ...INCREASING WINDS WITH LOW HUMIDITIES IN THE EASTERN COLUMBIA 
 RIVER GORGE ON FRIDAY...
 
 .DISCUSSION...THE THUNDERSTORM THREAT TODAY IS MINIMAL BUT THERE IS 
 JUST ENOUGH MOISTURE AND INSTABILITY THAT COULD LEAD TO ISOLATED 
 LATE AFTERNOON AND EVENING THUNDERSTORMS OVER THE MOUNTAINS.  A LOW 
 PRESSURE TROUGH OFF THE EASTERN PACIFIC WILL EDGE TOWARDS THE COAST 
 ON FRIDAY AND WILL PROVIDE SOME LIFT TO TRIGGER THUNDERSTORMS.  IN 
 ADDITION...PRESSURE GRADIENTS WILL BEGIN TO TIGHTEN FOR BREEZY WINDS 
 FRIDAY AFTERNOON AND EVENING IN THE EASTERN COLUMBIA RIVER GORGE.
 
 
 ***THUNDERSTORMS IMPLY STRONG GUSTY WINDS***
 ***WINDS ARE 20 FOOT 10 MINUTE AVERAGES***
 ***CWR-CHANCE OF WETTING RAIN 0.10 OR GREATER***
 
 HIGH ELEVATION HAINES INDEX OBSERVED THURSDAY MORNING JULY 29
 SALEM...3    MEDFORD...3    SPOKANE...2    BOISE...3
 
 ORZ609-WAZ609-292315-
 EAST SLOPES OF NORTH OREGON CASCADES-
 EAST SLOPES OF THE SOUTHERN WASHINGTON CASCADES-
 900 AM PDT THU JUL 29 2010
 
 .TODAY...
 SKY/WEATHER..............SUNNY THEN BECOMING PARTLY CLOUDY. 
                          ISOLATED SHOWERS AND THUNDERSTORMS IN THE 
                          AFTERNOON. 
 MAX TEMPERATURE..........83-88...EXCEPT 74-82 RIDGES. 
 MIN HUMIDITY.............23-29 PERCENT. 
 20-FOOT WINDS............ 
     VALLEYS/LWR SLOPES...NORTHWEST WINDS 2 TO 6 MPH INCREASING TO 3 
                          TO 12 MPH IN THE AFTERNOON. IN THE EASTERN 
                          COLUMBIA RIVER GORGE...WEST WINDS 3 TO 12 
                          MPH. 
     RIDGES/UPR SLOPES....WEST WINDS 2 TO 7 MPH. 
 CWR......................0 PERCENT. 
 LAL......................1. 
 HAINES INDEX.............4 (LOW). 
 
 .TONIGHT...
 SKY/WEATHER..............PARTLY CLOUDY. ISOLATED SHOWERS AND 
                          THUNDERSTORMS IN THE EVENING. 
 MIN TEMPERATURE..........52-57. 
 MAX HUMIDITY.............75-87 PERCENT...EXCEPT 61-76 PERCENT 
                          RIDGES. 
 HUMIDITY RECOVERY........EXCELLENT...EXCEPT GOOD RIDGES. 
 20-FOOT WINDS............ 
     VALLEYS/LWR SLOPES...WEST WINDS 6 TO 15 MPH DECREASING TO 2 TO 
                          7 MPH AFTER MIDNIGHT. 
     RIDGES/UPR SLOPES....NORTHWEST WINDS 3 TO 8 MPH. 
 CWR......................0 PERCENT. 
 LAL......................1. 
 HAINES INDEX.............4 (LOW). 
 
 .FRIDAY...
 SKY/WEATHER..............PARTLY CLOUDY. A CHANCE OF 
                          SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. 
 MAX TEMPERATURE..........81-87...EXCEPT 74-81 RIDGES. 
 MIN HUMIDITY.............20-27 PERCENT. 
 20-FOOT WINDS............ 
     VALLEYS/LWR SLOPES...WEST WINDS 4 TO 9 MPH. IN THE EASTERN 
                          COLUMBIA RIVER GORGE...WEST WINDS 5 TO 8 
                          MPH INCREASING TO 6 TO 15 MPH IN THE 
                          AFTERNOON. 
     RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING WEST 2 TO 7 
                          MPH IN THE AFTERNOON. 
 CWR......................10 PERCENT. 
 LAL......................2. 
 HAINES INDEX.............3 (VERY LOW). 
 
 
 .FORECAST DAYS 3 THROUGH 7......
 .SATURDAY...MOSTLY CLEAR. LOWS 51 TO 56. HIGHS 74 TO 81. WEST
 WINDS 6 TO 15 MPH. 
 .SUNDAY...MOSTLY CLEAR. LOWS 47 TO 54. HIGHS 76 TO 84. WEST WINDS
 3 TO 11 MPH. 
 .MONDAY...MOSTLY CLEAR. LOWS 48 TO 55. HIGHS 79 TO 87. WEST WINDS
 3 TO 12 MPH. 
 .TUESDAY...MOSTLY CLEAR. LOWS 49 TO 56. HIGHS 79 TO 87. WEST
 WINDS 3 TO 12 MPH. 
 .WEDNESDAY...MOSTLY CLEAR. LOWS 49 TO 56. HIGHS 80 TO 88. WEST
 WINDS 3 TO 11 MPH.