FNUS75 KBYZ 221554
FWSBYZ

SPOT FORECAST FOR EMIGRANT...USFS
NATIONAL WEATHER SERVICE BILLINGS MT
954 AM MDT MON JUL 22 2013

FORECAST IS BASED ON REQUEST TIME OF 0921 MDT ON JULY 22.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
...CRITICAL FIRE WEATHER OVER THE FIRE TODAY...
WINDS WILL BE STRONGER OVER THE FIRE TODAY WITH CONTINUED VERY DRY
AND UNSTABLE CONDITIONS WITH THE HAINES INDEX AT A 6. WEAK DISTURBANCE
OVER NORTHWEST MONTANA WILL CAUSE A WEAK FRONT TO MOVE OVER THE FIRE
THIS MORNING. 20 FOOT AFTERNOON WIND GUSTS SHOULD REACH 30 MPH WITH
HUMIDITY MINIMUM AROUND 10 PERCENT AND TEMPERATURES IN THE UPPER 60S.
STRONG WINDS ALOFT ASSOCIATED WITH THE DISTURBANCE WILL SUPPORT
FIRE PLUME GROWTH SHOULD ENOUGH HEAT BE GENERATED. TONIGHT WILL BE
A BIT COOLER WITH POOR HUMIDITY RECOVERY. TUESDAY WILL SEE LIGHTER
WINDS AS A RIDGE OF HIGH PRESSURE DEVELOPS OVER WESTERN MONTANA.

.TODAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MAX TEMPERATURE.....67-70.
MIN HUMIDITY........9-13 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......WEST WINDS 16 TO 20 MPH AFTERNOON GUSTS TO
                    30 MPH.
 RIDGETOP...........WEST 20 TO 30 MPH.
MIXING HEIGHT.......12700 FT AGL.
MIXING WINDS........WEST 35 MPH.
HAINES INDEX........6.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MIN TEMPERATURE.....50-55.
MAX HUMIDITY........27-32 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......NORTHWEST WINDS 10 TO 15 MPH.
 RIDGETOP...........NORTHWEST 10 TO 20 MPH.
MIXING HEIGHT.......1200 FT AGL.
MIXING WINDS........WEST 15 MPH.
HAINES INDEX........5.

.TUESDAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MAX TEMPERATURE.....70-75.
MIN HUMIDITY........10-15 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......LIGHT WINDS IN THE MORNING BECOMING NORTHWEST 8
                    TO 12 MPH IN THE AFTERNOON.
 RIDGETOP...........NORTHWEST 5 TO 15 MPH.
MIXING HEIGHT.......7500 FT AGL.
MIXING WINDS........WEST 5 TO 15 MPH.
HAINES INDEX........5.

$$
FORECASTER...BORSUM
REQUESTED BY...BRIAN MATLOCK
TYPE OF REQUEST...WILDFIRE
.TAG 20130722.EMIGR.01/BYZ