000 
FNUS56 KPDT 251555
FWFPDT

LAND MANAGEMENT FORECAST
NATIONAL WEATHER SERVICE PENDLETON OR
900 AM PDT THU APR 25 2002     SMITH

...COOL AND UNSETTLED THIS WEEKEND...

DISCUSSION...RHS INCREASED SLIGHTLY OVERNIGHT AS A WEAK DISTURBANCE 
MOVED ACROSS EASTERN WASHINGTON AND NORTHEAST OREGON. A STRONG LOW 
PRESSURE SYSTEM WILL DEVELOP OVER THE PACIFIC NORTHWEST FRIDAY 
THROUGH SUNDAY.  SHOWERS...COOL TEMPERATURES...AND BREEZY WINDS CAN 
BE EXPECTED WITH THIS UPCOMING SYSTEM.

***THUNDERSTORMS IMPLY GUSTY AND ERRATIC WINDS***
***CWR = CHANCE OF A WETTING RAIN WHICH IS GREATER THAN .10***

ZONE: 630...CENTRAL MOUNTAINS OF OREGON:

TODAY...
     WEATHER...MOSTLY SUNNY.
     MAX TEMP...54-64 MOUNTAINS...61-69 VALLEYS.
      24 HR TREND: UP 2-5.
     MIN RH...21-31 PCT MOUNTAINS...11-21 PCT VALLEYS.
      24 HR TREND: UP 2-4 PCT.
     20 FT WIND...NW-N 3-7 MPH.
     RIDGE TOP WIND...NW 4-8 MPH.
     CWR...0 PCT.
     LAL...1.

TONIGHT...
     WEATHER...INCREASING CLOUDS. 
     MIN TEMP...28-38 MOUNTAINS...30-40 VALLEYS.
      24 HR TREND: UP 7-10.
     MAX RH....60-70 PCT MOUNTAINS...50-60 PCT VALLEYS.
      24 HR TREND: UP 5 PCT.
     20 FT WIND...NW-N 3-7 MPH...BECOMING DRAINAGE 2-5 MPH AFTER
                  SUNSET.
     RIDGE TOP WIND...NW 4-8 MPH.
     CWR...0 PCT.
     LAL...1.

FRIDAY...
     WEATHER...MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS.
     MAX TEMP...49-59 MOUNTAINS...56-63 VALLEYS.
      24 HR TREND: DOWN 5.
     MIN RH...31-41 PCT MOUNTAINS...21-31 PCT VALLEYS.
      24 HR TREND: UP 10 PCT.
     20 FT WIND...NW 3-7 MPH.
     RIDGE TOP WIND...NW 5-10 MPH.
     CWR...10 PCT.
     LAL...1.


ZONES: 632,633,634,635 AND 638...NORTHEAST OREGON MOUNTAINS AND
THE HIGHER TERRAIN OF SOUTHEAST WASHINGTON: 

TODAY...
     WEATHER...MOSTLY SUNNY.
     MAX TEMP...50-60 MOUNTAINS...55-65 VALLEYS.
      24 HR TREND: UP 3-5.
     MIN RH...28-38 PCT MOUNTAINS...18-28 PCT VALLEYS.
      24 HR TREND: UP 2-4 PCT.
     20 FT WIND...NW-N 3-6 MPH. 
     RIDGE TOP WIND...NW-N 4-9 MPH.
     CWR...0 PCT. 
     LAL...1.

TONIGHT...
     WEATHER...INCREASING CLOUDS.
     MIN TEMP...22-32 MOUNTAINS...28-38 VALLEYS.
      24 HR TREND: UP 5.
     MAX RH...77-87 PCT MOUNTAINS...57-67 PCT VALLEYS.
      24 HR TREND: UP 5-8 PCT.
     20 FT WIND...NW-N 3-6 MPH...BECOMING DRAINAGE 2-5 MPH AFTER
                  SUNSET.
     RIDGE TOP WIND...NW 5-10 MPH.
     CWR...0 PCT.
     LAL...1.

FRIDAY...
     WEATHER...MOSTLY CLOUDY WITH A CHANCE OF AFTERNOON
               SHOWERS.
     MAX TEMP...40-50 MOUNTAINS...48-58 VALLEYS.
      24 HR TREND: DOWN 7-10
     MIN RH...43-53 PCT MOUNTAINS...28-38 PCT VALLEYS.
      24 HR TREND: UP 10-15 PCT.
     20 FT WIND...NW-N 3-6 MPH. 
     RIDGE TOP WIND...NW 5-10 MPH.
     CWR...20 PCT. 
     LAL...1.


ZONE 631 AND 675...COLUMBIA BASIN OF OREGON AND THE COLUMBIA BASIN 
OF WASHINGTON:

TODAY...
     WEATHER...MOSTLY SUNNY.
     MAX TEMP...61-66 RIDGES...62-69 VALLEYS.
      24 HR TREND: UP 2-5.
     MIN RH...23-33 PCT RIDGES...13-23 PCT VALLEYS.
      24 HR TREND: UP 2-4 PCT.
     20 FT WIND...NW-N 3-7 MPH.
     RIDGE TOP WIND...NW-N 4-9 MPH.
     CWR...0 PCT.
     LAL...1.

TONIGHT...
     WEATHER...INCREASING CLOUDS.
     MIN TEMP...33-43.
      24 HR TREND: UP 5.
     MAX RH...62-72 PCT.
      24 HR TREND: UP 5-8 PCT.
     20 FT WIND...NW-N 3-7 MPH...BECOMING DRAINAGE 1-3 MPH AFTER
                  SUNSET.
     RIDGE TOP WIND...NW-N 4-8 MPH.
     CWR...0 PCT.
     LAL...1.
                
FRIDAY...
     WEATHER...MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS... 
               MAINLY NEAR THE BASE OF THE BLUE MOUNTAINS.
     MAX TEMP...55-60 RIDGES...56-63 VALLEYS.
      24 HR TREND: DOWN 5-7.
     MIN RH...33-43 PCT RIDGES...25-35 PCT VALLEYS.
      24 HR TREND: UP 10-12 PCT.
     20 FT WIND...W-NW 4-8 MPH.
     RIDGE TOP WIND...NW 4-9 MPH.
     CWR...10 PCT.
     LAL...1.


ZONE 681...YAKAMA ALPINE DISTRICT:

TODAY...
     WEATHER...MOSTLY SUNNY.
     MAX TEMP...44-54 RIDGES...54-64 VALLEYS
      24 HR TREND: LITTLE CHANGE.
     MIN RH...30-40 PCT MOUNTAINS...20-30 PCT VALLEYS.
      24 HR TREND: UP 5 PCT.
     20 FT WIND...N 3-7 MPH.
     RIDGE TOP WIND...W-NW 3-7 MPH.
     CWR...0 PCT.
     LAL...1.

TONIGHT...
     WEATHER...INCREASING CLOUDS.
     MIN TEMP...25-35.
      24 HR TREND: UP 5.
     MAX RH...62-72 PCT MOUNTAINS...53-63 PCT VALLEYS.
      24 HR TREND: UP 7-10.
     20 FT WIND...N 3-7 MPH.
     RIDGE TOP WIND...W-NW 4-8 MPH.
     CWR...0 PCT.
     LAL...1.

FRIDAY...
     WEATHER...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS.
     MAX TEMP...34-44 RIDGES...40-50 VALLEYS
      24 HR TREND: DOWN 10-15.
     MIN RH...45-55 PCT MOUNTAINS...35-45 PCT VALLEYS.
      24 HR TREND: UP 15 PCT.
     20 FT WIND...NW 3-7 MPH...INCREASING TO 5-10 MPH.
     RIDGE TOP WIND...W-NW 5-10 MPH.
     CWR...20 PCT.
     LAL...1.



EXTENDED FORECAST...SATURDAY THROUGH MONDAY...

WEATHER:
    SATURDAY AND SUNDAY...A CHANCE OF SHOWERS. POSSIBLE SMALL HAIL. 
    SNOW LEVEL 4500-5000 FEET. LOWS IN THE 30S IN THE  MOUNTAINS 
    ...AND 35-45 IN THE VALLEYS/BASIN.  HIGHS 45-55 IN THE 
    MOUNTAINS...AND 55-65 IN THE VALLEYS/BASIN.

    MONDAY...DRY. LOWS IN THE 30S IN THE MOUNTAINS...AND 35-45 IN THE
    VALLEYS/BASIN. HIGHS MAINLY IN THE 50S IN THE MOUNTAINS AND 60S
    IN THE VALLEYS/BASIN.
   
WIND OUTLOOK: 
    SATURDAY...SW-W 8-18 MPH.
    SUNDAY AND MONDAY...W-NW 5-15 MPH.    

6-10 DAY OUTLOOK...TUESDAY APR 30 THROUGH SATURDAY MAY 4...
   BELOW NORMAL TEMPERATURES AND SLIGHTLY BELOW NORMAL PRECIPITATION.