FNUS75 KBYZ 072049
FWSBYZ

SPOT FORECAST FOR EMIGRANT...USFS
NATIONAL WEATHER SERVICE BILLINGS MT
249 PM MDT WED AUG 7 2013

FORECAST IS BASED ON REQUEST TIME OF 1414 MDT ON AUGUST 07.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

MONSOONAL MOISTURE WILL MOVE INTO THE FIRE AREA THURSDAY BRINGING
A CHANCE FOR WET THUNDERSTORMS TO THE FIRE AREA. PRECIPITATION
CHANCES WILL LINGER INTO FRIDAY AFTERNOON BEFORE DRIER AIR MOVES
IN FOR SATURDAY. WINDS WILL BE SLOPE DOMINANT EACH DAY...HOWEVER
OCCASIONAL SOUTHWESTERLY WIND GUSTS OVER 20 MPH MAY DEVELOP ON
FRIDAY AFTERNOON. GUSTY WINDS WILL BE POSSIBLE NEAR ANY STORMS. RH
VALUES WILL BE 5 TO 8 PERCENT HIGHER ON THURSDAY THAN TODAY...AND
HIGHER STILL ON FRIDAY WITH GOOD RECOVERIES OVERNIGHT.

EXTENDED...A STRING OF HOT AND DRY DAYS BEGINS ON SATURDAY AND
CONTINUES THROUGH TUESDAY. TEMPERATURES WILL PUSH TO AROUND 80
DEGREES WITH RH VALUES IN THE LOW TO MID TEENS...WITH POOR
RECOVERIES OVERNIGHT. MONDAY MAY SEE SINGLE DIGIT RH VALUES. DO
NOT SEE ANY STRONG WINDS FOR THIS PERIOD BUT OCCASIONAL THERMAL
GUSTS TO 25 MPH SEEM REASONABLE DURING THE AFTERNOON HOURS.
ISOLATED AFTERNOON AND EVENING THUNDERSTORMS WILL BE MAINLY DRY
AND WILL PRODUCE STRONG WIND GUSTS. CHAMBERS

.THURSDAY...

SKY/WEATHER.........MOSTLY SUNNY IN THE MORNING...INCREASING CLOUDS
                    IN THE AFTERNOON. ISOLATED SHOWERS AND
                    THUNDERSTORMS IN THE AFTERNOON.
CWR.................10 PERCENT.
LAL.................3...9 TO 15 STRIKES/15 MIN/CELL.
MAX TEMPERATURE.....68-73.
MIN HUMIDITY........25-30 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......UP SLOPE/VALLEY 5 TO 10 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    AFTERNOON.
 RIDGETOP...........WEST 8 TO 15 MPH.
HAINES INDEX........4.

.THURSDAY NIGHT...

SKY/WEATHER.........MOSTLY CLOUDY WITH ISOLATED SHOWERS AND
                    THUNDERSTORMS.
CWR.................20 PERCENT.
LAL.................3...9 TO 15 STRIKES/15 MIN/CELL.
MIN TEMPERATURE.....49-54.
MAX HUMIDITY........54-60 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......DOWN SLOPE/VALLEY 3 TO 7 MPH. GUSTY AND
                    ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS.
 RIDGETOP...........SOUTHWEST 5 TO 10 MPH.
HAINES INDEX........4.

.FRIDAY...

SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND
                    THUNDERSTORMS.
CWR.................10 PERCENT.
LAL.................3...9 TO 15 STRIKES/15 MIN/CELL.
MAX TEMPERATURE.....70-75.
MIN HUMIDITY........28-34 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......UP SLOPE/VALLEY 6 TO 12 MPH. OCCASIONAL
                    SOUTHWEST GUSTS TO 22 MPH IN THE AFTERNOON.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS.
 RIDGETOP...........SOUTHWEST 8 TO 15 MPH...GUSTS TO 25 MPH.
HAINES INDEX........4.

$$
FORECASTER...CHAMBERS
REQUESTED BY...SHELBY MAJORS
TYPE OF REQUEST...WILDFIRE
.TAG 20130807.EMIGR.01/BYZ