FNUS75 KBYZ 162218
FWSBYZ

SPOT FORECAST FOR NORTH 8 MILE...USFS
NATIONAL WEATHER SERVICE BILLINGS MT
418 PM MDT FRI AUG 16 2013

FORECAST IS BASED ON REQUEST TIME OF 1553 MDT ON AUGUST 16.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...POOR HUMIDITY RECOVERIES TONIGHT...

...VERY LOW HUMIDITY AGAIN SATURDAY...

...CHANCE OF THUNDERSTORMS SATURDAY NIGHT...

.DISCUSSION...
THE AIRMASS WILL CONTINUE TO BE WARM AND DRY. HUMIDITIES WILL BE
IN THE SINGLE DIGITS TO AROUND 10 PERCENT THIS AFTERNOON WITH
TEMPERATURES IN THE 80S. SLIGHTLY COOLER AIR ALOFT WILL TRY TO
PUSH INTO THE SITE SATURDAY BUT SHOULD NOT MAKE A HUGE IMPACT ON
TEMPERATURES AND HUMIDITIES. EXPECT POOR RECOVERIES TONIGHT WITH
ANOTHER DAY OF LOW HUMIDITY SATURDAY. WINDS WILL BE DRIVEN BY
TERRAIN WITH SOME GUSTS IN THE AFTERNOON AS THE SLOPES HEAT UP.
ISOLATED THUNDESTORMS WILL DEVELOP AROUND THE SITE SATURDAY
EVENING. THESE STORMS WILL HAVE LITTLE RAIN AND CONTAIN STRONG
WIND GUSTS...POSSIBLY UP TO 50 MPH.

.REST OF TODAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MAX TEMPERATURE.....81-86.
MIN HUMIDITY........8-13 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......UPSLOPE/UPVALLEY 4 TO 12 MPH. ERRATIC WIND
                    GUSTS TO 16 MPH.
 RIDGETOP...........SOUTHWEST 10 TO 20 MPH.
MIXING HEIGHT.......15000 FT AGL.
MIXING WINDS........SOUTHWEST 10 TO 20 MPH.
HAINES INDEX........6.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MIN TEMPERATURE.....48-53.
MAX HUMIDITY........30-35 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......UPSLOPE EARLY THIS EVENING 4 TO 12 MPH.
                    WINDS BECOMING DOWNSLOPE BY MID EVENING.
 RIDGETOP...........WEST 10 TO 20 MPH.
MIXING HEIGHT.......FALLING TO 500 FT AGL.
MIXING WINDS........WEST 5 TO 15 MPH.
HAINES INDEX........5.

.SATURDAY...

SKY/WEATHER.........SUNNY. ISOLATED THUNDERSTORMS IN THE AFTERNOON.
CWR.................8 PERCENT.
LAL.................2...1 TO 8 STRIKES/15 MIN/CELL.
MAX TEMPERATURE.....77-82.
MIN HUMIDITY........10-15 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......DOWNSLOPE 4 TO 12 MPH IN THE EARLY MORNING.
                    WINDS BECOMING UPSLOPE BY MID MORNING. GUSTY
                    AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS.
 RIDGETOP...........WEST TO SOUTHWEST 10 TO 20 MPH.
MIXING HEIGHT.......12500 FT AGL.
MIXING WINDS........SOUTHWEST 5 TO 15 MPH.
HAINES INDEX........5.

$$
FORECASTER...HUMPHREY
REQUESTED BY...BRIAN MATLOCK
TYPE OF REQUEST...WILDFIRE
.TAG 20130816.NORTH.01/BYZ