282
FNUS75 KBYZ 201415
FWSBYZ
SPOT FORECAST FOR BLACK SPRINGS...NORTHERN CHEYENNE AGENCY
NATIONAL WEATHER SERVICE BILLINGS MT
715 AM MST FRI NOV 20 2009
FORECAST IS BASED ON IGNITION TIME OF 1000 MST ON NOVEMBER 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
A STRONG RIDGE OF HIGH PRESSURE WILL KEEP THE BURN SITE WARM AND
DRY TODAY...WITH A PERSISTENT SOUTHERLY WIND. SOUTHWEST WINDS WILL
INCREASE TONIGHT...ESPECIALLY ON THE NEARBY RIDGE TOPS. LOOK FOR A
COLD FRONT TO PUSH INTO THE AREA FROM THE WEST AROUND SUNRISE ON
SATURDAY. THIS WILL BRING A SHIFT TO A GUSTY WEST OR NORTHWEST
WIND THROUGH THE DAY ON SATURDAY...ALONG WITH A FEW RAIN OR SNOW
SHOWERS.
TODAY
SKY/WEATHER.........PARTLY CLOUDY. SCATTERED HIGH CLOUDS.
CWR.................0 PERCENT.
MAX TEMPERATURE.....57-62.
MIN HUMIDITY........21-26 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......SOUTH TO SOUTHWEST WINDS 6-12 MPH.
RIDGETOP...........SOUTHWEST 10-20 MPH BECOMING SOUTH. AFTERNOON
GUSTS TO 25 MPH.
MIXING HEIGHT.......1500 FT AGL.
MIXING WINDS........SOUTHWEST 15 MPH.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CWR.................0 PERCENT.
MIN TEMPERATURE.....33-38.
MAX HUMIDITY........50-60 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......SOUTH TO SOUTHWEST 7-15 MPH.
RIDGETOP...........SOUTHWEST 20-30 MPH.
MIXING HEIGHT.......1000 FT AGL.
MIXING WINDS........SOUTHWEST 25 MPH.
SATURDAY
SKY/WEATHER.........MOSTLY CLOUDY. ISOLATED RAIN OR SNOW SHOWERS.
CWR.................10 PERCENT.
MAX TEMPERATURE.....46-51.
MIN HUMIDITY........27-32 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......WEST 10-20 MPH. GUSTS TO 25 MPH.
RIDGETOP...........NORTHWEST 20-30 MPH WITH GUSTS TO 35 MPH.
MIXING HEIGHT.......5000 FT AGL.
MIXING WINDS........WEST 30 MPH.
FORECASTER...LESTER
REQUESTED BY...RAY HART
TYPE OF REQUEST...PRESCRIBED
.TAG 20091120.BLACK.01/BYZ
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page