FNUS75 KBYZ 060519
FWSBYZ

SPOT FORECAST FOR GRAVEL PIT...BLM
NATIONAL WEATHER SERVICE BILLINGS MT
1119 PM MDT SAT SEP 5 2009

FORECAST IS BASED ON REQUEST TIME OF 2309 MDT ON SEPTEMBER 05.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

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

.DISCUSSION...
CAN NOT RULE OUT AN ISOLATED THUNDERSTORM THROUGH ABOUT 2 AM MDT
BUT IT APPEARS THAT THE CHANCE FOR THUNDERSTORMS WILL DECREASE AS
THE NIGHT WEARS ON. WINDS SHOULD REMAIN OUT OF THE SOUTH TO
SOUTHEAST TONIGHT AND BE A LITTLE STRONGER ON SUNDAY WITH SOME
GUSTS TO 20 MPH IN THE AFTERNOON. A STRONG COLD FRONT WILL PUSH
INTO THE FIRE SITE LATE SUNDAY NIGHT AND SWITCH WINDS TO THE
NORTHWEST AT 15 TO 30 MPH. ISOLATED THUNDERSTORMS WILL DEVELOP
AHEAD OF THE FRONT SUNDAY AFTERNOON AND EVENING. THESE STORMS
WILL CONTAIN STRONG AND ERRATIC WIND GUSTS. A FIRE WEATHER WATCH
IS IN EFFECT FOR SUNDAY AFTERNOON AND EVENING. MONDAY SHOULD BE
COOLER WITH WINDS TURNING NORTHEAST BY AFTERNOON. HUMPHREY

.REST OF TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY. ISOLATED THUNDERSTORMS.
CWR.................5 PERCENT.
LAL.................2...1 TO 8 STRIKES/15 MIN/CELL.
MIN TEMPERATURE.....59-64.
MAX HUMIDITY........50-55 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTHEAST WINDS 6 TO 12 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS OVERNIGHT.
 RIDGETOP...........SOUTH 15 TO 20 MPH.

.SUNDAY...

SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND
                    THUNDERSTORMS IN THE AFTERNOON. SOME
                    THUNDERSTORMS MAY PRODUCE GUSTY WINDS IN THE
                    AFTERNOON.
CWR.................7 PERCENT.
LAL.................2...1 TO 8 STRIKES/15 MIN/CELL.
MAX TEMPERATURE.....93-98.
MIN HUMIDITY........13-18 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTH WINDS 8 TO 16 MPH GUST TO 20 MPH. GUSTY
    AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS
    IN THE AFTERNOON.
 RIDGETOP...........SOUTH 15 TO 20 MPH.

$$
FORECASTER...HUMPHREY
REQUESTED BY...TIM VIRAG
TYPE OF REQUEST...WILDFIRE
.TAG 20090905.GRAVE.01/BYZ