FNUS75 KBYZ 311619
FWSBYZ

SPOT FORECAST FOR TIE CREEK RX...NORTHERN CHEYENNE
NATIONAL WEATHER SERVICE BILLINGS MT
1019 AM MDT SUN MAY 31 2009

FORECAST IS BASED ON IGNITION TIME OF 1100 MDT ON MAY 31.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
A WEAK COOL FRONT IS MOVING THROUGH THE FIRE AREA LATE THIS MORNING.
THIS WILL KEEP NORTHWEST WINDS OVER THE BURN SITE TODAY WITH
WINDS BECOMING EASTERLY TONIGHT. THUNDERSTORM ACTIVITY WILL
REDEVELOP THIS AFTERNOON BUT ANY PRECIPITATION WILL BE LIGHT. IT WILL
BE COOLER TODAY WITH SIMILAR HUMIDITY. EXPECT SHOWER AND
THUNDERSTORM ACTIVITY TO CONTINUE TONIGHT WITH GOOD HUMIDITY
RECOVERY. A MUCH STRONGER COLD FRONT WILL MOVE THROUGH THE FIRE
AREA MONDAY MORNING BRINGING GUSTY NORTH WINDS BUT MUCH COOLER
TEMPERATURES. BORSUM

.TODAY...

SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND
                    THUNDERSTORMS LATE THIS AFTERNOON.
CWR.................13 PERCENT.
LAL.................2...1 TO 8 STRIKES/15 MIN/CELL.
MAX TEMPERATURE.....75-80.
MIN HUMIDITY........21-26 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......NORTHWEST WINDS 8 TO 15 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS.
 RIDGETOP...........NORTHWEST 10 TO 20 MPH.
MIXING HEIGHT.......8900 FT AGL.
MIXING WINDS........NORTHWEST 15 TO 30 MPH.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY. SCATTERED SHOWERS AND
                    THUNDERSTORMS.
CWR.................28 PERCENT.
LAL.................3...9 TO 15 STRIKES/15 MIN/CELL.
MIN TEMPERATURE.....47-52.
MAX HUMIDITY........84-89 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......NORTHWEST WINDS 5 TO 10 MPH IN THE EVENING
                    SHIFTING TO THE NORTHEAST OVERNIGHT. GUSTY AND
                    ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS.
 RIDGETOP...........WEST 5 TO 15 MPH.
MIXING HEIGHT.......2300 FT AGL.
MIXING WINDS........NORTHEAST 5 TO 10 MPH.

$$
FORECASTER...BORSUM
REQUESTED BY...LEE OLD BEAR
TYPE OF REQUEST...PRESCRIBED
.TAG 20090531.TIECR.01/BYZ