FNUS75 KBYZ 312221
FWSBYZ

SPOT FORECAST FOR FRIDAY...NORTHERN CHEYENNE
NATIONAL WEATHER SERVICE BILLINGS MT
421 PM MDT FRI JUL 31 2009

FORECAST IS BASED ON REQUEST TIME OF 1525 MDT ON JULY 31.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
GUSTY NORTHWEST WINDS WILL CONTINUE INTO THE EARLY EVENING OVER
THE FIRE SITE. THE WINDS WILL DIMINISH TO SOUTHWEST 5 TO 10 MPH
AFTER SUNSET UNDER SURFACE HIGH PRESSURE. TEMPERATURES WILL WARM BACK
TO AROUND SEASON NORMALS ON SATURDAY UNDER SUNNY SKIES. RELATIVE
HUMIDITIES WILL FALL INTO THE UPPER TEENS TO MID 20S IN THE AFTERNOON.
LIGHT SOUTHWEST WINDS EARLY WILL BECOME NORTHWEST AT 5 TO 15 MPH
BY LATE MORNING.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MIN TEMPERATURE.....49-54.
MAX HUMIDITY........66-71 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......NORTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO 30
                    MPH EARLY IN THE EVENING...BECOMING SOUTHWEST
                    5 TO 10 MPH AFTER SUNSET.
RIDGETOP............NORTHWEST 10 TO 20 MPH.
MIXING HEIGHT.......4000 FT AGL EARLY IN THE EVENING...DECREASING
                    TO 300 FT AGL OVERNIGHT.
MIXING WINDS........NORTHWEST 15 TO 25 MPH.

.SATURDAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MAX TEMPERATURE.....83-88.
MIN HUMIDITY........19-24 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTHWEST WINDS AROUND 5 MPH EARLY...BECOMING
                    NORTHWEST 5 TO 15 MPH BY LATE MORNING.
 RIDGETOP...........WEST 10 TO 20 MPH.
MIXING HEIGHT.......8800 FT AGL.
MIXING WINDS........WEST 10 TO 20 MPH.

$$
FORECASTER...ARTHUR
REQUESTED BY...LEE OLD BEAR
TYPE OF REQUEST...WILDFIRE
.TAG 20090731.FRIDA.01/BYZ