FNUS76 KPQR 111420
FWSPQR

SPOT FORECAST FOR THOMAS DAIRY TRAINING FIRE...TVFR
NATIONAL WEATHER SERVICE PORTLAND OR
720 AM PDT FRI SEP 11 2009

FORECAST IS BASED ON IGNITION TIME OF 1010 PDT ON SEPTEMBER 11.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...HOT...DRY...AND UNSTABLE TODAY AND SATURDAY...

.DISCUSSION...A STRONG RIDGE OF HIGH PRESSURE ALOFT REMAINS OVER THE
PACIFIC NORTHWEST THIS MORNING. A THERMAL TROUGH OF LOW PRESSURE NEAR
THE SURFACE EXTENDS NORTHWARD FROM CALIFORNIA UP THE OREGON AND
WASHINGTON COASTLINE. THIS IS RESULTING IN OFFSHORE FLOW JUST ABOVE
THE SURFACE...WHICH WILL MIX DOWN TO THE BURN AREA BY LATE THIS
MORNING. AS A RESULT EXPECT EAST TO NORTHEAST WINDS TO INCREASE BY
MIDDAY...EVENTUALLY TURNING A BIT MORE NORTHERLY AND POSSIBLY
DECREASING AGAIN LATE IN THE AFTERNOON AND DURING THE EVENING HOURS.
THE PROXIMITY OF THE THERMAL TROUGH WILL ALSO RESULT IN ENHANCED
LOW TO MID LEVEL INSTABILITY NEAR THE BURN AREA TODAY AND SATURDAY.

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.

.TODAY...

SKY/WEATHER.........SUNNY.
CWR (%).............0 PERCENT.
MAX TEMPERATURE.....AROUND 93.
MIN HUMIDITY........AROUND 20 PERCENT.
EYE LEVEL WINDS.....UPSLOPE 0-2 MPH EARLY...THEN BECOMING EAST
                    TO NORTHEAST 3-6 MPH WITH GUSTS TO 12 MPH
                    BY 1000. WIND BECOMING MORE NORTHERLY
                    DURING THE AFTERNOON...WITH SOME EASING
                    POSSIBLE AFTER 1600.
WIND (20 FT)........UPSLOPE 1-3 MPH EARLY...THEN BECOMING EAST
                    TO NORTHEAST 4-8 MPH WITH GUSTS TO 15 MPH
                    BY 1000. WIND BECOMING MORE NORTHERLY
                    DURING THE AFTERNOON...WITH SOME EASING
                    POSSIBLE AFTER 1600.
VISIBILITY..........UNRESTRICTED.
CEILING.............NONE.

TIME (PDT)      8 AM   10 AM  NOON   2 PM   4 PM   6 PM
TEMP............60     71     81     89     92     90
RH..............80     45     28     22     20     24
20 FT WIND......VRB 2  NE 5   NE 6   NE 6   N 6    N 3
   MAX GUST.....6      12     15     15     15     10
EYE LEVEL WIND..VRB 1  NE 2   NE 4   NE 4   N 4    N 2
   MAX GUST.....3      8      12     12     12     8


.TONIGHT...

SKY/WEATHER.........CLEAR.
CWR (%).............0 PERCENT.
MIN TEMPERATURE.....AROUND 55.
MAX HUMIDITY........85-90 PERCENT.
EYE LEVEL WINDS.....NORTH 1-3 MPH IN THE EVENING...BECOMING
                    DOWN-DRAINAGE LESS THAN 2 MPH.
WIND (20 FT)........NORTH 2-5 MPH IN THE EVENING...BECOMING
                    DOWN-DRAINAGE LESS THAN 3 MPH.
VISIBILITY..........UNRESTRICTED.
CEILING.............NONE.


.SATURDAY...

SKY/WEATHER.........SUNNY.
CWR (%).............0 PERCENT.
MAX TEMPERATURE.....AROUND 90.
MIN HUMIDITY........20-25 PERCENT.
EYE LEVEL WINDS.....LIGHT WIND UNTIL 0800...THEN UPSLOPE/UPVALLEY
                    WIND 0-3 MPH DEVELOPING UNTIL 1200. WIND THEN
                    BECOMING NORTHWEST 3-6 MPH BY 1500.
WIND (20 FT)........LIGHT WIND UNTIL 0800...THEN UPSLOPE/UPVALLEY
                    WIND 2-5 MPH DEVELOPING UNTIL 1200. WIND THEN
                    BECOMING NORTHWEST 5-9 MPH BY 1500.
VISIBILITY..........UNRESTRICTED.
CEILING.............NONE.

$$
FORECASTER...WEAGLE
REQUESTED BY...DAN GRIFIN
REASON FOR REQUEST...PRESCRIBED
.TAG 20090911.THOMA.01/PQR