FNUS75 KBYZ 181451
FWSBYZ

SPOT FORECAST FOR TIE CREEK RX PROJECT...NORTHERN CHEYENNE
NATIONAL WEATHER SERVICE BILLINGS MT
851 AM MDT SUN OCT 18 2009

FORECAST IS BASED ON IGNITION TIME OF 1100 MDT ON OCTOBER 18.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...WINDS SHIFT TO NORTHWEST THIS AFTERNOON...WITH LITTLE INCREASE IN
WIND SPEED...

.DISCUSSION...

A WEAK FRONT WILL MOVE THROUGH THE AREA LATE THIS AFTERNOON
RESULTING IN A WINDSHIFT TO THE NORTH. WINDS WILL BECOME
NORTHWEST EARLY THIS AFTERNOON AND INCREASE SLIGHTLY TO 10 TO 15
MPH WITH GUSTS TO 20 MPH AND SWITCH TO MORE NORTHERLY BY LATE
EVENING AND DIMINISH TO AROUND 10 MPH OVERNIGHT. INCREASING
CLOUDINESS WITH THIS SYSTEM WILL CAUSE THE MAXIMUM TEMPERATURE
SLIGHTLY ABOVE 70 DEGREES TO BE REACHED EARLY TODAY...RESULTING IN
RH VALUES DROPPING ONLY SLIGHTLY BELOW 20 PERCENT MARK BEFORE
STABILIZING AND BEGINNING TO RISE THIS AFTERNOON. A STRONGER COLD
FRONT WILL CROSS THE BURN AREA MONDAY AFTERNOON...BRINGING SHOWERS
TO THE BURN AREA BY MONDAY MORNING...WITH INCREASING CHANCES OF
PRECIPITATION THROUGH TUESDAY MORNING. TEMPERATURES WILL BE MUCH
COOLER MONDAY AND RH VALUES MUCH HIGHER. THE WIND WILL SWITCH TO
NORTHEAST AND INCREASE TO 10 TO 20 MPH MONDAY AFTERNOON.
GILSTAD/BORSUM

.TODAY...

SKY/WEATHER.........PARTLY CLOUDY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....69-74.
MIN HUMIDITY........20-25 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......NORTHWEST WINDS 5 TO 10 MPH.
 RIDGETOP...........NORTHWEST 5 TO 15 MPH.
MIXING HEIGHT.......4500 FT AGL.
MIXING WINDS........NORTHWEST 15 TO 25 MPH.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY WITH ISOLATED RAIN SHOWERS MAINLY LATE.
CWR.................9 PERCENT.
MIN TEMPERATURE.....40-45.
MAX HUMIDITY........71-76 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......NORTH WINDS 5 TO 10 MPH.
 RIDGETOP...........NORTHEAST 5 TO 15 MPH.
MIXING HEIGHT.......300 FT AGL.
MIXING WINDS........NORTHEAST 5 TO 15 MPH.

$$
FORECASTER...GILSTAD/BORSUM
REQUESTED BY...LEE OLD BEAR
TYPE OF REQUEST...PRESCRIBED
.TAG 20091018.TIECR.01/BYZ