FNUS70 PHFO 152142
FWSHFO

SPOT FORECAST FOR PRESIDENTS DAY...NATIONAL PARK SERVICE
NATIONAL WEATHER SERVICE HONOLULU HI
1142 AM HST TUE DEC 15 2009

FORECAST IS BASED ON IGNITION TIME OF 1145 HST ON DECEMBER 15.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
A RIDGE OF HIGH PRESSURE WILL SETTLE OVER THE BIG ISLAND TONIGHT
MAINTAINING A STABLE AND RATHER DRY LAND AND SEA BREEZE PATTERN
THROUGH THURSDAY. THIS STAGNANT REGIME WILL KEEP VOLCANIC
EMISSIONS NEAR THE SOURCE. UPSLOPE WINDS DURING THE AFTERNOON WILL
PUSH EMISSIONS OVER AND AROUND VOLCANO VILLAGE...WHILE DOWNSLOPE
WINDS AT NIGHT MAY PROVIDE TEMPORARY REDUCTION IN EMISSIONS NEAR
VOLCANO VILLAGE. STRENGTHENING NORTHEASTERLY WINDS ON THURSDAY
NIGHT AND FRIDAY WILL CARRY VOLCANIC EMISSIONS SOUTHWARD.

.TODAY...

SKY/WEATHER.........SUNNY THEN BECOMING PARTLY CLOUDY.
MAX TEMPERATURE.....AROUND 70.
MIN HUMIDITY........45 PERCENT.
CHANCE OF PCPN......10 PERCENT.
MIXING HEIGHT.......3600-3700 FT AGL.
20-FOOT WINDS.......SOUTH WINDS 5 TO 7 MPH.
TRANSPORT WINDS.....SOUTHEAST AROUND 7 MPH.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY IN THE EVENING THEN MOSTLY CLEAR
                    BY MIDNIGHT.
MIN TEMPERATURE.....AROUND 50.
MAX HUMIDITY........100 PERCENT.
CHANCE OF PCPN......10 PERCENT.
MIXING HEIGHT.......3600 FT AGL.
20-FOOT WINDS.......LIGHT AND VARIABLE WINDS IN THE EVENING BECOMING
                    NORTHWEST 5 MPH BY MIDNIGHT.
TRANSPORT WINDS.....SOUTH AROUND 9 MPH.

.WEDNESDAY...

SKY/WEATHER.........MOSTLY SUNNY IN THE MORNING THEN PARTLY CLOUDY WITH
                    A SLIGHT CHANCE OF SHOWERS IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 69.
MIN HUMIDITY........50 PERCENT.
CHANCE OF PCPN......20 PERCENT.
MIXING HEIGHT.......3600-3700 FT AGL.
20-FOOT WINDS.......LIGHT AND VARIABLE WINDS IN THE MORNING BECOMING
                    SOUTH 5 TO 7 MPH BY NOON.
TRANSPORT WINDS.....SOUTH AROUND 9 MPH.

$$
FORECASTER...WROE
REQUESTED BY...SAM
TYPE OF REQUEST...PRESCRIBED
.TAG 20091215.PRESI.01/HFO