FNUS70 PHFO 101727
FWSHFO

SPOT FORECAST FOR PRESIDENT S DAY...NATIONAL PARK SERVICE
NATIONAL WEATHER SERVICE HONOLULU HI
727 AM HST THU DEC 10 2009

FORECAST IS BASED ON IGNITION TIME OF 0705 HST ON DECEMBER 10.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
A HIGH PRESSURE RIDGE HAS SHIFTED OVER THE ISLANDS WILL BRING SEA
BREEZES BY LATE MORNING AND DOWNSLOPE WINDS TONIGHT. LIGHT TO
MODERATE TRADE WINDS WILL RETURN FRIDAY. THE AIR MASS IS DRY AND
STABLE WITH MOSTLY SUNNY DAYS EXPECTED. THE TEMPERATURE INVERSION
IS CLOSE TO THE SAME ELEVATION AS THE PARK AND COULD KEEP
EMISSIONS NEAR THE SURFACE THROUGH THE MORNING BEFORE DAY- TIME
HEATING HELPS MIX EMISSIONS UPWARD.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....AROUND 69.
MIN HUMIDITY........55 PERCENT.
CHANCE OF PCPN......10 PERCENT.
MIXING HEIGHT.......3600 FT AGL.
20-FOOT WINDS.......LIGHT NORTH WINDS BECOMING SOUTH AROUND 6 MPH
                    IN THE LATE MORNING.
TRANSPORT WINDS.....EAST AROUND 10 MPH.
LAL.................1.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
MIN TEMPERATURE.....AROUND 52.
MAX HUMIDITY........100 PERCENT.
CHANCE OF PCPN......10 PERCENT.
MIXING HEIGHT.......3600 FT AGL.
20-FOOT WINDS.......NORTH WINDS AROUND 4 TO 8 MPH.
TRANSPORT WINDS.....EAST 10 TO 15 MPH.
LAL.................1.

.FRIDAY...

SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....AROUND 69.
MIN HUMIDITY........55 PERCENT.
CHANCE OF PCPN......10 PERCENT.
MIXING HEIGHT.......3600 FT AGL.
20-FOOT WINDS.......EAST WINDS 8 TO 12 MPH.
TRANSPORT WINDS.....EAST 15 TO 20 MPH.
LAL.................1.

$$
FORECASTER...HARRISON
REQUESTED BY...SAM
TYPE OF REQUEST...PRESCRIBED
.TAG 20091210.PRESI.01/HFO