FNUS75 KBYZ 281142
FWSBYZ

SPOT FORECAST FOR BENCH STEWARDSHIP...MEDICINE WHEEL RD
NATIONAL WEATHER SERVICE BILLINGS MT
542 AM MDT MON SEP 28 2009

FORECAST IS BASED ON IGNITION TIME OF 1950 MDT ON SEPTEMBER 28.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
WINDS WILL BE TRICKY TO NAIL DOWN. REASON BEING...THE WINDS ALOFT
WILL BE FROM THE SOUTH...WHEREAS UPSLOPE WINDS..NORTH...WILL WANT
TO DEVELOP AS THE LOWER ELEVATIONS HEAT UP. IT IS BECAUSE OF THIS
THAT IT APPEARS THE WINDS WILL BECOME A BIT ERRATIC BY NOON BOTH
TODAY AND TUESDAY. RIDGE TOP WINDS WILL BE STRONGER ON TUESDAY.
HUMIDITIES WILL APPROACH 20 PERCENT TODAY AND TUESDAY...WITH THE
DRIER DAY BEING ON TUESDAY. A COLD FRONT WILL PUSH INTO THE SITE
TUESDAY NIGHT WITH STRONG AND GUSTY NORTHWEST WINDS. THIS SYSTEM
WILL BRING RAIN AND SNOW TO THE AREA WEDNESDAY AND WEDNESDAY
NIGHT. SNOW LEVELS WILL LOWER TO AROUND 7 THOUSAND FEET. A HALF
INCH TO AN INCH OF LIQUID WILL BE QUITE POSSIBLE WITH THIS SYSTEM
WITH SEVERAL INCHES OF SNOW. HUMPHREY

.TODAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....55-60.
MIN HUMIDITY........23-28 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......WINDS DOWNSLOPE 4 TO 10 MPH THIS MORNING. WINDS
                    BECOMING UPSLOPE 8 TO 16 MPH WITH GUSTS TO 20
                    MPH BY LATE MORNING. WINDS WILL BE A BIT ERRATIC
                    IN THE AFTERNOON.
 RIDGETOP...........SOUTHWEST 10 TO 20 MPH.
MIXING HEIGHT.......4100 FT AGL.
MIXING WINDS........SOUTH 15 TO 25 MPH.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
CWR.................0 PERCENT.
MIN TEMPERATURE.....39-44.
MAX HUMIDITY........36-41 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......WINDS DOWNSLOPE 4 TO 12 MPH.
 RIDGETOP...........SOUTHWEST 15 TO 25 MPH.
MIXING HEIGHT.......300 FT AGL.
MIXING WINDS........SOUTH 10 TO 20 MPH.

.TUESDAY...

SKY/WEATHER.........PARTLY CLOUDY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....60-65.
MIN HUMIDITY........21-26 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......WINDS DOWNSLOPE 4 TO 12 MPH DURING THE MORNING.
                    WINDS BECOMING UPSLOPE 10 TO 18 MPH WITH GUSTS
                    TO 22 MPH BY LATE MORNING. WINDS WILL BE A BIT
                    ERRATIC IN THE AFTERNOON.
 RIDGETOP...........SOUTHWEST 20 TO 35 MPH.
MIXING HEIGHT.......4500 FT AGL.
MIXING WINDS........SOUTHWEST 15 TO 25 MPH.

$$
FORECASTER...HUMPHREY
REQUESTED BY...WARREN APPELHANS
TYPE OF REQUEST...PRESCRIBED
.TAG 20090928.BENCH.01/BYZ