FNUS75 KBYZ 241402
FWSBYZ

SPOT FORECAST FOR EMIGRANT...USFS
NATIONAL WEATHER SERVICE BILLINGS MT
802 AM MDT WED JUL 24 2013

FORECAST IS BASED ON REQUEST TIME OF 0740 MDT ON JULY 24.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

...ISOLATED THUNDERSTORMS POSSIBLE THIS AFTERNOON...
HIGH BASED ISOLATED THUNDERSTORMS ARE POSSIBLE OVER OR NEAR THE
FIRE THIS AFTERNOON. THESE STORMS WILL NOT PRODUCE RAIN BUT WILL
HAVE A VERY GOOD CHANCE OF PRODUCING STRONG WIND GUSTS. ANY VIRGA
BENEATH ANY CELL...EVEN TALL CUMULUS...SHOULD BE MONITORED CLOSELY
FOR POTENTIAL WIND SHIFTS. ALSO...WIND GUSTS COULD KNOCK OVER BURNED
MATERIAL CREATING A ROLLING HAZARD. THE MOST LIKELY LOCATION FOR
THUNDERSTORM FORMATION IS SOUTH OF THE FIRE SO MAKE SURE LOOKOUTS
CAN SEE THE SOUTHERN SKY. THE MOST LIKELY TIME FOR STORM FORMATION IS
AFTER 1600. OTHERWISE HUMIDITY WILL BE A BIT HIGHER TODAY AND WINDS
WILL CONTINUE TO FOLLOW UPSLOPE/UPVALLEY TERRAIN PATTERNS. MORE
THUNDERSTORMS ARE EXPECTED THURSDAY WITH MORE COVERAGE BUT A BETTER
CHANCE OF BEING WET. BORSUM

.TODAY...

SKY/WEATHER.........PARTLY SUNNY. ISOLATED DRY THUNDERSTORMS AFTER
                    1600. SOME THUNDERSTORMS MAY PRODUCE GUSTY
                    WINDS IN THE AFTERNOON.
CWR.................5 PERCENT.
LAL.................2...1 TO 8 STRIKES/15 MIN/CELL.
MAX TEMPERATURE.....80-85.
MIN HUMIDITY........14-18 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......UPSLOPE/UPVALLEY 10 TO 15 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    AFTERNOON.
 RIDGETOP...........SOUTHWEST 5 TO 15 MPH.
MIXING HEIGHT.......12600 FT AGL.
MIXING WINDS........SOUTHWEST 10 TO 20 MPH.
HAINES INDEX........5.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY ISOLATED THUNDERSTORMS UNTIL 2000.
CWR.................5 PERCENT.
LAL.................2...1 TO 8 STRIKES/15 MIN/CELL.
MIN TEMPERATURE.....48-53.
MAX HUMIDITY........45-50 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......DOWNSLOPE/DOWNVALLEY 3 TO 7 MPH.
 RIDGETOP...........NORTH 10 MPH.
MIXING HEIGHT.......1400 FT AGL.
MIXING WINDS........NORTH 10 TO 20 MPH.
HAINES INDEX........4.

.THURSDAY...

SKY/WEATHER.........MOSTLY SUNNY. SCATTERED SHOWERS AND
                    THUNDERSTORMS IN THE AFTERNOON.
CWR.................14 PERCENT.
LAL.................3...9 TO 15 STRIKES/15 MIN/CELL.
MAX TEMPERATURE.....77-82.
MIN HUMIDITY........20-25 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......UPSLOPE/UPVALLEY 8 TO 12 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    AFTERNOON.
 RIDGETOP...........NORTHEAST 5 TO 15 MPH.
MIXING HEIGHT.......9800 FT AGL.
MIXING WINDS........NORTH 5 TO 15 MPH.
HAINES INDEX........5.

$$
FORECASTER...BORSUM
REQUESTED BY...GALLATIN EAST ZONE
TYPE OF REQUEST...WILDFIRE
.TAG 20130724.EMIGR.01/BYZ