FNUS75 KFGZ 121813
FWSFGZ

SPOT FORECAST FOR WALLA FIRE...GNP GRAND CANYON NP
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
1113 AM MST SAT JUN 12 2010

FORECAST IS BASED ON REQUEST TIME OF 1052 MST ON JUNE 12.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...AN UNSEASONABLY STRONG LOW PRESSURE SYSTEM MOVING
ACROSS THE SOUTHWEST WILL BRING MUCH BELOW NORMAL TEMPERATURES AND
HIGHER RELATIVE HUMIDITIES TODAY. SHOWERS AND THUNDERSTORMS WILL
LIKELY TODAY. ON SUNDAY...EXPECT SHOWERS AND THUNDERSTORMS TO
DECREASE IN COVERAGE ALONG WITH SLIGHTLY WARMER TEMPERATURES.

.TODAY...

SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED THUNDERSTORMS.
MAX TEMPERATURE.....55 TO 58.
MIN HUMIDITY........40 TO 50 PCT.
WINDS (20 FT).......LIGHT AND VARIABLE WINDS BECOMING WEST TO
                    SOUTHWEST 5 TO 10 MPH IN THE AFTERNOON.
LAL.................4.
HAINES INDEX........3 VERY LOW.
MAX VENT RATE.......FAIR (34700 KNOT-FT).
CLEARING INDEX......347.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED THUNDERSTORMS IN THE
                    EVENING...ISOLATED THUNDERSTORMS AFTER
                    MIDNIGHT.
MIN TEMPERATURE.....32 TO 35.
MAX HUMIDITY........85 TO 95 PCT.
WINDS (20 FT).......WEST WINDS 5 TO 10 MPH IN THE EVENING BECOMING
                    VARIABLE/DOWNSLOPE UP TO 4 MPH OVERNIGHT.
LAL.................3.
HAINES INDEX........3 VERY LOW.
MIN VENT RATE.......MARGINAL (9500 KNOT-FT).
CLEARING INDEX......95.

.SUNDAY...

SKY/WEATHER.........MOSTLY CLOUDY. ISOLATED THUNDERSTORMS.
MAX TEMPERATURE.....60 TO 63.
MIN HUMIDITY........25 TO 35 PCT.
WINDS (20 FT).......WEST WINDS 5 TO 10 MPH.
LAL.................2.
HAINES INDEX........3 VERY LOW.
MAX VENT RATE.......EXCELLENT (155800 KNOT-FT).
CLEARING INDEX......1558.

$$
FORECASTER...ONTON
REQUESTED BY...AZ-WDC
REASON FOR REQUEST...WILDFIRE
.TAG 20100612.WALLA.01/FGZ