FNUS76 KSEW 152146
FWSSEW

SPOT FORECAST FOR HOPPER...NPS OLYMPIC
NATIONAL WEATHER SERVICE SEATTLE WA
246 PM PDT SUN AUG 15 2010

FORECAST IS BASED ON REQUEST TIME OF 1510 MDT ON AUGUST 15.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE IN SEATTLE.

...VERY DRY AND UNSTABLE ATMOSPHERE TO CONTINUE THROUGH MONDAY...

.DISCUSSION...A THERMAL PRESSURE TROUGH WAS LOCATED NEAR THE FIRE
ON SUNDAY AFTERNOON AND WAS ACCOMPANIED BY MID-LEVEL HAINES 6
CONDITIONS. THIS FEATURE WILL CONTINUE IN THE VICINITY OF THE FIRE
THROUGH EARLY MONDAY AFTERNOON BEFORE MOVING EAST OF THE FIRE ON
MONDAY EVENING. IN THE MEANTIME...HOT DRY AND UNSTABLE CONDITIONS
WILL CONTINUE OVER THE FIRE...THOUGH LINGERING EAST WINDS WILL
DIE OFF EARLY THIS EVENING. ON TUESDAY...MARINE AIR WILL DEEPEN
ENOUGH IN THE AFTERNOON TO BRING COOLER...MORE HUMID AND STABLE
CONDITIONS TO THE HOPPER FIRE.

 FORECAST FOR 20 FOOT WIND SPEED (VALLEYS AND RIDGE TOPS) ARE 10
 MINUTE AVERAGES REFLECTING RAWS WINDS.

.TONIGHT...

SKY/WEATHER.........CLEAR.
CWR.................0%.
MIN TEMPERATURE.....AROUND 58.
MAX HUMIDITY........47 PERCENT.
WIND (20 FT)........DOWNSLOPE/DOWNVALLEY 2 TO 4 MPH.
MIXING HEIGHT.......6100 FT AGL DECREASING TO 500 FT AGL LATE IN
                    THE EVENING.
TRANSPORT WINDS.....LIGHT WIND.
HAINES INDEX........MID-LEVEL....6 OR HIGH.
                    HIGH-LEVEL...4 OR LOW.
LAL.................1.

.MONDAY...

SKY/WEATHER.........SUNNY.
CWR.................0%.
MAX TEMPERATURE.....AROUND 84.
MIN HUMIDITY........31 PERCENT.
WIND (20 FT)........DOWNSLOPE/DOWNVALLEY 2 TO 4 MPH AT SUNRISE...
                    BECOMING UPSLOPE/UPVALLEY 3 TO 6 MPH BY LATE
                    MORNING.
MIXING HEIGHT.......500 FT AGL INCREASING TO 6600 FT AGL LATE IN
                    THE MORNING.
TRANSPORT WINDS.....EAST 5 MPH IN THE MORNING...BECOMING WEST IN
                    THE AFTERNOON.
HAINES INDEX........MID-LEVEL....6 OR HIGH.
                    HIGH-LEVEL...4 OR LOW.
LAL.................1.

.MONDAY NIGHT...

SKY/WEATHER.........CLEAR.
CWR.................0%.
MIN TEMPERATURE.....AROUND 56.
MAX HUMIDITY........70 PERCENT.
WIND (20 FT)........DOWNSLOPE/DOWNVALLEY 2 TO 4 MPH.
MIXING HEIGHT.......6600 FT AGL DECREASING TO 500 FT AGL LATE IN
                    THE EVENING.
TRANSPORT WINDS.....LIGHT WIND.
HAINES INDEX........MID-LEVEL....6 OR HIGH.
                    HIGH-LEVEL...4 OR LOW.
LAL.................1.

$$
FORECASTER...HANER
REQUESTED BY...STEPHANIE FREY
TYPE OF REQUEST...WILDFIRE
.TAG 20100815.HOPPE.01/SEW