FNUS75 KFGZ 140955
FWSFGZ

SPOT FORECAST FOR TIPOVER...GNP GRAND CANYON NP
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
255 AM MST SUN AUG 14 2011

FORECAST IS BASED ON REQUEST TIME OF 2132 MST ON AUGUST 13.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...DEEPER MONSOON MOISTURE WILL RESULT IN A CHANCE OF SHOWERS
AND THUNDERSTORMS TODAY. ON MONDAY...HIGH PRESSURE WILL WOBBLE EASTWARD
ALLOWING DRIER SOUTHWEST FLOW TO MOVE BACK ACROSS THE TIPOVER
WILDFIRE...WITH ONLY A VERY SLIGHT FOR A STORM. DEEP MIXING WILL
RESULT IN GOOD TO VERY GOOD VENTILATION EACH AFTERNOON.


.TODAY...

SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN IN THE
                    MORNING...THEN CHANCE OF SHOWERS AND
                    THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 74.
MIN HUMIDITY........51 PCT.
WINDS (20 FT).......LIGHT AND VARIABLE WINDS UNTIL 1000 LST BECOMING
                    SOUTHWEST 2 TO 5 MPH IN THE AFTERNOON.
LAL.................3.
HAINES INDEX........3 VERY LOW.
MAX VENT RATE.......GOOD (51700 KNOT-FT).
CLEARING INDEX......517.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING MOSTLY CLEAR.
                    CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
                    EVENING.
MIN TEMPERATURE.....AROUND 52.
MAX HUMIDITY........85 PCT.
WINDS (20 FT).......SOUTHWEST WINDS 2 TO 4 MPH UNTIL 2000 LST
                    BECOMING LIGHT AND VARIABLE.
LAL.................3.
HAINES INDEX........3 VERY LOW.
MIN VENT RATE.......POOR (1000 KNOT-FT).
CLEARING INDEX......10.

.MONDAY...

SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
                    THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 77.
MIN HUMIDITY........32 PCT.
WINDS (20 FT).......LIGHT AND VARIABLE WINDS UNTIL 0900 LST BECOMING
                    SOUTHWEST AROUND 5 MPH IN THE AFTERNOON.
LAL.................2.
HAINES INDEX........3 VERY LOW.
MAX VENT RATE.......VERY GOOD (75900 KNOT-FT).
CLEARING INDEX......759.

$$
FORECASTER...MCCOLLUM
REQUESTED BY...MATTHEW DANIEL
REASON FOR REQUEST...WILDFIRE
.TAG 20110813.TIPOV.01/FGZ