FNUS75 KBYZ 251538
FWSBYZ

SPOT FORECAST FOR ALDEN S PILE BURN...NORTHERN CHEYENNE AGENCY
NATIONAL WEATHER SERVICE BILLINGS MT
838 AM MST FRI JAN 25 2013

FORECAST IS BASED ON IGNITION TIME OF 1025 MST ON JANUARY 25.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
A RIDGE OF HIGH PRESSURE WILL BUILD OVER THE FIRE DISTRICT
TODAY...AND REMAIN THROUGH SATURDAY...RESULTING IN LIGHT WINDS AT
THE BURN SITE. WINDS SHOULD BE MAINLY LIGHT WESTERLY WINDS THROUGH
TODAY...TURNING MORE SOUTHERLY AFTER SUNSET. WINDS WILL BE MAINLY
VARIABLE THROUGH THE DAY SATURDAY. TEMPERATURES WILL BE IN THE LOW
TO MID 40S TODAY AND SATURDAY...WITH MIN RH VALUES ONLY SLIGHTLY
LOWER THAN CURRENT OBSERVATIONS.

THE NEXT COLD FRONT WILL MOVE INTO THE BURN SITE ON SUNDAY...AND
WILL BRING COLDER TEMPERATURES AND THE NEXT CHANCE FOR
ACCUMULATING SNOW...WITH UP TO AN INCH POSSIBLE AT THE BURN SITE
SUNDAY AND SUNDAY NIGHT. AAG

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....40-45.
WIND (20 FT)........
 SLOPE/VALLEY.......WEST WINDS 5 TO 10 MPH.
 RIDGETOP...........WEST 20 TO 35 MPH.
MIXING HEIGHT.......1100 FT AGL.
MIXING WINDS........SOUTHWEST 5 TO 15 MPH.
HAINES INDEX........4.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY.
MIN TEMPERATURE.....25-30.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTH WINDS 5 TO 10 MPH.
 RIDGETOP...........WEST 15 TO 25 MPH.
MIXING HEIGHT.......100 FT AGL.
MIXING WINDS........SOUTHWEST 5 TO 15 MPH.
HAINES INDEX........4.

.SATURDAY...

SKY/WEATHER.........PARTLY SUNNY.
MAX TEMPERATURE.....41-46.
WIND (20 FT)........
 SLOPE/VALLEY.......LIGHT WINDS IN THE MORNING BECOMING WEST 5 TO
                    10 MPH IN THE AFTERNOON.
 RIDGETOP...........WEST 15 TO 25 MPH.
MIXING HEIGHT.......200 FT AGL.
MIXING WINDS........SOUTHWEST 5 TO 10 MPH.
HAINES INDEX........4.

$$
FORECASTER...GILSTAD
REQUESTED BY...MIKE BEARCOMEOUT
TYPE OF REQUEST...PRESCRIBED
.TAG 20130125.ALDEN.01/BYZ