FNUS75 KBYZ 061720
FWSBYZ

SPOT FORECAST FOR MAIN BOULDER 8A...GALLATIN NF
NATIONAL WEATHER SERVICE BILLINGS MT
1120 AM MDT MON MAY 6 2013

FORECAST IS BASED ON IGNITION TIME OF 1100 MDT ON MAY 07.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

MOISTURE OVER THE MOUNTAINS WILL SLOWLY INCREASE INTO TOMORROW
BRINGING INCREASED CHANCES OF SCATTERED SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. TEMPERATURES WILL BE RUNNING JUST ABOVE SEASONAL
NORMALS WITH HIGHS IN THE 70S EXPECTED TODAY AND TOMORROW. WINDS
WILL REMAIN LIGHT OVER THE BURN SITE WITH DIURNAL SLOPE VALLEY
WINDS PREVAILING...THE ONLY EXCEPTION BEING ANY GUSTY WINDS
PRODUCED BY A SCATTERED SHOWER OR THUNDERSTORM. CHURCH

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY. ISOLATED SHOWERS AND
                    THUNDERSTORMS IN THE AFTERNOON.
CWR.................10 PERCENT.
LAL.................2...1 TO 8 STRIKES/15 MIN/CELL.
MAX TEMPERATURE.....71-76.
MIN HUMIDITY........22-27 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......NORTH WINDS 5 TO 10 MPH. GUSTY AND ERRATIC WINDS
                    EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON.
 RIDGETOP...........SOUTHEAST 5 TO 10 MPH.
MIXING HEIGHT.......5400 FT AGL.
MIXING WINDS........SOUTHEAST 5 TO 15 MPH.
HAINES INDEX........5.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND
                    THUNDERSTORMS IN THE EVENING.
CWR.................10 PERCENT.
LAL.................2...1 TO 8 STRIKES/15 MIN/CELL.
MIN TEMPERATURE.....37-42.
MAX HUMIDITY........77-82 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTH WINDS 5 TO 10 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    EVENING.
 RIDGETOP...........SOUTHEAST 5 TO 10 MPH.
MIXING HEIGHT.......2500 FT AGL.
MIXING WINDS........SOUTHEAST 5 TO 15 MPH.
HAINES INDEX........5.

.TUESDAY...

SKY/WEATHER.........SUNNY IN THE MORNING...THEN PARTLY SUNNY WITH
                    SCATTERED SHOWERS AND THUNDERSTORMS IN THE
                    AFTERNOON.
CWR.................19 PERCENT.
LAL.................3...9 TO 15 STRIKES/15 MIN/CELL.
MAX TEMPERATURE.....69-74.
MIN HUMIDITY........18-23 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTH WINDS 5 TO 10 MPH IN THE EARLY MORNING
                    SHIFTING TO THE NORTH BY LATE MORNING. GUSTY
                    AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS
                    IN THE AFTERNOON.
 RIDGETOP...........NORTHWEST 5 TO 10 MPH BECOMING NORTHEAST 10
                    TO 15 MPH IN THE AFTERNOON.
MIXING HEIGHT.......8000 FT AGL.
MIXING WINDS........LIGHT WINDS.
HAINES INDEX........5.

$$
FORECASTER...CHURCH
REQUESTED BY...DAVID DAY
TYPE OF REQUEST...PRESCRIBED
.TAG 20130507.MAINB.01/BYZ