FNUS75 KBYZ 182250
FWSBYZ

SPOT FORECAST FOR DRY FORK RX...USFS GALLATIN
NATIONAL WEATHER SERVICE BILLINGS MT
450 PM MDT FRI SEP 18 2009

FORECAST IS BASED ON IGNITION TIME OF 1650 MDT ON SEPTEMBER 18.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH
SATURDAY EVENING...

.DISCUSSION...
HOT AND DRY CONDITIONS WILL PERSIST THROUGH SATURDAY. ISOLATED
SHOWERS AND THUNDERSTORMS WILL OCCUR THIS EVENING AND SATURDAY
AFTERNOON. RELATIVE HUMIDITIES TONIGHT WILL BE IN THE MID 40S TO
AROUND 50 PERCENT. ON SATURDAY...RELATIVE HUMIDITIES WILL BE 25 TO 30
PERCENT. EAST WINDS AT 10 TO 20 MPH EARLY THIS EVENING WILL BECOME
SOUTH 5 TO 10 MPH BY LATE EVENING. WINDS WILL BE WEST ON SATURDAY
AT 15 TO 25 MPH. A COLD FRONT WILL CROSS THE BURN SITE SATURDAY
EVENING BRINGING SCATTERED SHOWERS AND THUNDERSTORMS SATURDAY NIGHT.
DUE TO THE HOT AND DRY WEATHER ON SATURDAY...THE COLD FRONTAL PASSAGE
SATURDAY EVENING...AND POSSIBLE DRY THUNDERSTORMS SATURDAY EVENING...
A FIRE WEATHER WATCH IS IN EFFECT FOR THE BURN SITE SATURDAY AFTERNOON
THROUGH SATURDAY EVENING. EXPECT WEST WINDS 10 TO 20 MPH SATURDAY
NIGHT AND HIGH HUMIDITY RECOVERIES.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR. ISOLATED SHOWERS AND
                    THUNDERSTORMS IN THE EVENING.
MIN TEMPERATURE.....48-53.
MAX HUMIDITY........45-50 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......EAST WINDS 10 TO 20 MPH EARLY...BECOMING
                    SOUTH 5 TO 10 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    EVENING.
 RIDGETOP...........SOUTHWEST 10 TO 20 MPH.
MIXING HEIGHT.......300 FT AGL.
MIXING WINDS........SOUTHWEST 10 TO 20 MPH.

.SATURDAY...

SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND
                    THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....69-74.
MIN HUMIDITY........25-30 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......WEST WINDS 15 TO 25 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    AFTERNOON.
 RIDGETOP...........SOUTHWEST 15 TO 25 MPH.
MIXING HEIGHT.......7500 FT AGL.
MIXING WINDS........SOUTHWEST 15 TO 30 MPH.

.SATURDAY NIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED SHOWERS AND
                    THUNDERSTORMS.
MIN TEMPERATURE.....38-43.
MAX HUMIDITY........85-90 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......WEST WINDS 10 TO 20 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS.
 RIDGETOP...........WEST 30 TO 45 MPH.
MIXING HEIGHT.......300 FT AGL.
MIXING WINDS........WEST 20 TO 35 MPH.

$$
FORECASTER...ARTHUR
REQUESTED BY...ASHLEY SITES
TYPE OF REQUEST...PRESCRIBED
.TAG 20090918.DRYFO.02/BYZ