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000
FNUS75 KBYZ 171154
FWSBYZ

SPOT FORECAST FOR BENBOW UNIT  54...CUSTER NF
NATIONAL WEATHER SERVICE BILLINGS MT
554 AM MDT FRI MAY 17 2013

FORECAST IS BASED ON IGNITION TIME OF 0636 MDT ON MAY 17.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
SCATTERED LIGHT SHOWERS ARE EXPECTED THIS MORNING. SHOWERS WILL
BECOMING MORE WIDESPREAD BY EARLY AFTERNOON. ISOLATED THUNDERSTORMS
WILL BE MIXED IN WITH THE SHOWERS...BUT THE MAIN ACTIVITY TODAY
WILL BE SHOWERS. SHOWERS WILL CONTINUE INTO THE EVENING THEN
DECREASE OVERNIGHT. ANOTHER ROUND OF SHOWERS CAN BE EXPECTED ON
SATURDAY AND AGAIN SUNDAY. TEMPERATURES WILL BE QUITE COOL WITH
CLOUDS AND SHOWERS AROUND WITH HIGH HUMIDITIES. WINDS WILL START
OUT IN DOWNSLOPE MODE BUT TURN NORTHEAST BY LATE MORNING TODAY.
WINDS WILL TURN MORE TO THE NORTHWEST SATURDAY. TWH

.TODAY...

SKY/WEATHER.........CLOUDY WITH RAIN SHOWERS AND ISOLATED
                    THUNDERSTORMS.
CWR.................66 PERCENT.
LAL.................2...1 TO 8 STRIKES/15 MIN/CELL.
MAX TEMPERATURE.....55-60.
MIN HUMIDITY........55-60 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......DOWNSLOPE 4 TO 10 MPH EARLY THIS MORNING.
                    WINDS BECOMING NORTHEAST BY LATE MORNING.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS.
 RIDGETOP...........SOUTHWEST 5 TO 10 MPH.
MIXING HEIGHT.......4000 FT AGL.
MIXING WINDS........SOUTH 5 TO 10 MPH.
HAINES INDEX........2.

.TONIGHT...

SKY/WEATHER.........CLOUDY. NUMEROUS RAIN SHOWERS AND ISOLATED
                    THUNDERSTORMS IN THE EVENING...THEN SCATTERED
                    RAIN SHOWERS AND ISOLATED THUNDERSTORMS
                    OVERNIGHT.
CWR.................56 PERCENT.
LAL.................2...1 TO 8 STRIKES/15 MIN/CELL.
MIN TEMPERATURE.....39-44.
MAX HUMIDITY........88-93 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......NORTHEAST WINDS 4 TO 10 MPH IN THE EVENING
                    SHIFTING TO THE SOUTHWEST OVERNIGHT. GUSTY AND
                    ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS.
 RIDGETOP...........WEST 5 TO 10 MPH.
MIXING HEIGHT.......700 FT AGL.
MIXING WINDS........SOUTHEAST 5 TO 10 MPH.
HAINES INDEX........2.

.SATURDAY...

SKY/WEATHER.........MOSTLY CLOUDY WITH NUMEROUS RAIN SHOWERS AND
                    ISOLATED THUNDERSTORMS.
CWR.................61 PERCENT.
LAL.................2...1 TO 8 STRIKES/15 MIN/CELL.
MAX TEMPERATURE.....54-59.
MIN HUMIDITY........59-64 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTHWEST 4 TO 10 MPH IN THE EARLY MORNING.
                    WINDS BECOMING NORTHWEST BY LATE MORNING.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS.
 RIDGETOP...........NORTHWEST 5 TO 15 MPH.
MIXING HEIGHT.......3000 FT AGL.
MIXING WINDS........WEST 5 TO 15 MPH.
HAINES INDEX........2.

$$
FORECASTER...HUMPHREY
REQUESTED BY...CHAD TUSS
TYPE OF REQUEST...PRESCRIBED
.TAG 20130517.BENBO.01/BYZ