FNUS75 KBYZ 221213
FWSBYZ

SPOT FORECAST FOR YELLOWHILL RX...MEDICINE WHEEL RD
NATIONAL WEATHER SERVICE BILLINGS MT
613 AM MDT WED APR 22 2009

FORECAST IS BASED ON IGNITION TIME OF 0900 MDT ON APRIL 22.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
WESTERLY FLOW ALOFT WILL BRING ANOTHER WARM...DRY AND BREEZY DAY
TO THE BURN SITE TODAY. TEMPERATURES WILL CLIMB INTO THE UPPER 70S
TO LOWER 80S...AND MINIMUM RELATIVE HUMIDITIES WILL BE IN THE UPPER
SINGLE DIGITS TO THE MID TEENS. WINDS WILL BE SOUTH 5 TO 15 MPH IN
THE MORNING...AND WILL BECOME WEST 10 TO 20 MPH IN THE AFTERNOON. DRY
WEATHER WILL CONTINUE TONIGHT WITH TEMPERATURES FALLING INTO THE MID
TO UPPER 40S. WEST WINDS AT 10 TO 20 MPH EARLY...WILL BECOME SOUTH
5 TO 15 MPH BY LATE EVENING. A COLD FRONT WILL PUSH SOUTH INTO THE BURN
SITE THURSDAY AFTERNOON ACCOMPANIED BY ISOLATED SHOWERS AND THUNDERSTORMS.
WINDS WILL BE SOUTH 5 TO 15 MPH EARLY...THEN BECOME SOUTHWEST 10 TO 20
MPH BY LATE MORNING. THE WINDS WILL THEN SHIFT TO THE NORTH 10 TO 20 MPH
WITH THE FRONTAL PASSAGE LATE IN THE AFTERNOON. TEMPERATURES WILL REACH
THE UPPER 60S TO LOWER 70S AHEAD OF THE FRONT...WITH RELATIVE HUMIDITIES
IN THE MID AND UPPER TEENS. GUSTY AND ERRATIC WINDS WILL BE POSSIBLE
WITH ANY THUNDERSTORMS.

.TODAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....78-83.
MIN HUMIDITY........9-14 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTH WINDS 5 TO 15 MPH IN THE MORNING...BECOMING
                    WEST 10 TO 20 MPH IN THE AFTERNOON.
 RIDGETOP...........WEST 10 TO 20 MPH.

.TONIGHT...

MIN TEMPERATURE.....44-49.
MAX HUMIDITY........58-63 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......WEST WINDS 10 TO 20 MPH EARLY...BECOMING SOUTH
                    5 TO 15 MPH BY LATE EVENING.
 RIDGETOP...........SOUTHWEST 15 TO 30 MPH.

.THURSDAY...

SKY/WEATHER.........MOSTLY CLOUDY. ISOLATED SHOWERS AND
                    THUNDERSTORMS IN THE AFTERNOON.
CWR.................8 PERCENT.
MAX TEMPERATURE.....68-73.
MIN HUMIDITY........14-19 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTH WINDS 5 TO 15 MPH EARLY...BECOMING
                    SOUTHWEST 10 TO 20 MPH BY LATE MORNING. WINDS
                    SHIFTING TO THE NORTH 10 TO 20 MPH IN THE LATE
                    AFTERNOON. GUSTY AND ERRATIC WINDS
                    EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON.
 RIDGETOP...........SOUTHWEST 15 TO 30 MPH.

$$
FORECASTER...ARTHUR
REQUESTED BY...WARREN APPELHANS
TYPE OF REQUEST...PRESCRIBED
.TAG 20090422.YELLO.01/BYZ