FNUS75 KBYZ 211510
FWSBYZ

SPOT FORECAST FOR BROKEN JAW RX...NORTHERN CHEYENNE AGENCY
NATIONAL WEATHER SERVICE BILLINGS MT
910 AM MDT THU OCT 21 2010

FORECAST IS BASED ON IGNITION TIME OF 1100 MDT ON OCTOBER 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

HIGH PRESSURE WILL REMAIN OVER THE BURN SITE TODAY...BUT BEGIN TO
WEAKEN ON FRIDAY. SKIES WILL BE MOSTLY CLEAR THROUGH FRIDAY WITH
CONTINUED ABOVE NORMAL TEMPERATURES. MINIMUM RELATIVE HUMIDITIES
WILL BE LOW TODAY IN THE UPPER TEENS TO LOWER 20S. HUMIDITIES WILL
COME UP A LITTLE ON FRIDAY INTO THE 20S. WINDS WILL BECOME SOUTHWEST
5 TO 10 MPH BY THIS AFTERNOON AND WILL BE NORTHEAST 5 TO 15 MPH BY LATE
MORNING ON FRIDAY.

.REST OF TODAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MAX TEMPERATURE.....68-73.
MIN HUMIDITY........18-23 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......DOWNSLOPE/DOWN VALLEY WINDS 5 MPH OR LESS...BECOMING
                    SOUTHWEST WINDS 5 TO 10 MPH BY AFTERNOON.
 RIDGETOP...........WEST 5 TO 15 MPH.
MIXING HEIGHT.......3500 FT AGL.
MIXING WINDS........WEST 5 TO 15 MPH.

.TONIGHT...

SKY/WEATHER.........CLEAR.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MIN TEMPERATURE.....42-47.
MAX HUMIDITY........44-49 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......DOWNSLOPE/DOWN VALLEY WINDS 5 MPH OR LESS.
 RIDGETOP...........WEST 5 TO 15 MPH.
MIXING HEIGHT.......300 FT AGL.
MIXING WINDS........WEST 5 TO 10 MPH.

.FRIDAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MAX TEMPERATURE.....65-70.
MIN HUMIDITY........23-28 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......DOWNSLOPE/DOWN VALLEY WINDS 5 MPH OR LESS...
                    BECOMING NORTHEAST 5 TO 15 MPH BY LATE MORNING.
 RIDGETOP...........EAST 5 TO 15 MPH.
MIXING HEIGHT.......3000 FT AGL.
MIXING WINDS........EAST 5 TO 10 MPH.

$$
FORECASTER...ARTHUR
REQUESTED BY...LEE OLD BEAR
TYPE OF REQUEST...PRESCRIBED
.TAG 20101021.BROKE.01/BYZ