FNUS75 KBYZ 301656
FWSBYZ

SPOT FORECAST FOR BLACK SPRINGS...NORTHERN CHEYENNE
NATIONAL WEATHER SERVICE BILLINGS MT
1056 AM MDT SAT MAY 30 2009

FORECAST IS BASED ON IGNITION TIME OF 1050 MDT ON MAY 30.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
ITS WILL BE ANOTHER VERY WARM DAY OVER THE BURN SITE WITH
HUMIDITIES APPROACHING 20 PERCENT THIS AFTERNOON. WINDS WILL BE
LIGHTER THIS AFTERNOON THAN YESTERDAY AND BECOME SOUTHWESTERLY.
ISOLATED THUNDERSTORMS WILL MOVE ACROSS THE AREA THIS EVENING OR
OVERNIGHT AND THE FRONT WILL REACH THE BURN SITE AROUND MIDNIGHT WHEN
WINDS WILL BECOME NORTHWESTERLY AND INCREASE. PRECIPITATION
TONIGHT...IF ANY...WILL BE VERY LIGHT. ON SUNDAY THE WINDS WILL
BECOME NORTHERLY AND THEN NORTHEASTERLY. ISOLATED THUNDERSTORMS
ARE AGAIN POSSIBLE SUNDAY AFTERNOON BUT PRECIPITATION WILL BE
LIGHT. WINDS WILL INCREASE SUNDAY NIGHT AND EXPECT BREEZY
CONDITIONS AND MUCH COOLER TEMPERATURES ON MONDAY. BORSUM

.REST OF TODAY...

SKY/WEATHER.........MOSTLY SUNNY. A FEW CUMULUS IN THE AFTERNOON.
CWR.................ZERO.
LAL.................1...NO STRIKES.
MAX TEMPERATURE.....83-88.
MIN HUMIDITY........18-22 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTH WINDS 5 TO 15 MPH BECOMING SOUTHWEST.
 RIDGETOP...........SOUTH 5 TO 15 MPH.
MIXING HEIGHT.......13000 FT AGL.
MIXING WINDS........SOUTHWEST 10 TO 20 MPH.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND
                    THUNDERSTORMS.
CWR.................12 PERCENT.
LAL.................2...1 TO 8 STRIKES/15 MIN/CELL.
MIN TEMPERATURE.....55-59.
MAX HUMIDITY........55-60 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTHWEST WINDS 5 TO 15 MPH. BECOMING
                    NORTHWEST AFTER MIDNIGHT. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS.
 RIDGETOP...........WEST 15 TO 30 MPH.
MIXING HEIGHT.......2300 FT AGL.
MIXING WINDS........SOUTHWEST 5 TO 15 MPH.

.SUNDAY...

SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND
                    THUNDERSTORMS IN THE AFTERNOON.
CWR.................10 PERCENT.
LAL.................2...1 TO 8 STRIKES/15 MIN/CELL.
MAX TEMPERATURE.....75-80.
MIN HUMIDITY........29-34 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......NORTHWEST WINDS 5 TO 15 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    AFTERNOON.
 RIDGETOP...........NORTHWEST 10 TO 20 MPH.
MIXING HEIGHT.......8600 FT AGL.
MIXING WINDS........NORTHWEST 15 TO 30 MPH.

$$
FORECASTER...BORSUM
REQUESTED BY...LEE OLD BEAR
TYPE OF REQUEST...PRESCRIBED
.TAG 20090530.BLACK.03/BYZ