FNUS75 KGGW 301443
FWSGGW

SPOT FORECAST FOR TIN CAN HILL UNIT G...BLM LED
NATIONAL WEATHER SERVICE GLASGOW MT
843 AM MDT TUE APR 30 2013

FORECAST IS BASED ON IGNITION TIME OF 0840 MDT ON APRIL 30.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...AN UPPER LEVEL TROUGH WILL REMAIN OVER THE AREA KEEPING
CONDITIONS COOL AND UNSETTLED TODAY. TONIGHT CLOUDS WILL BE ON THE
DECREASE AS A NORTHWEST FLOW ALOFT BUILDS IN BEHIND THE EXITING TROUGH.
TEMPERATURES WILL ALSO BE ON THE COOL SIDE AS CANADIAN HIGH PRESSURE
REMAINS AT THE SURFACE. WEDNESDAY TEMPERATURES WILL BEGIN TO WARM
AS THE SYSTEM LIFTS OUT AND WINDS WILL BE LIGHTER AS THE PRESSURE
GRADIENT REMAINS RELAXED.

.TODAY...
SKY/WEATHER.........MOSTLY CLOUDY (55-65 PERCENT). A SLIGHT CHANCE
                    OF RAIN AND SNOW SHOWERS IN THE MORNING...THEN
                    A SLIGHT CHANCE OF RAIN SHOWERS IN THE
                    AFTERNOON.
MAX TEMPERATURE.....41-46.
MIN HUMIDITY........29-34 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 18 TO 23 MPH...WITH GUSTS TO 35 MPH.
LAL.................1.
CWR.................LESS THAN 10 PERCENT.
MIXING HEIGHT.......10100 FT AGL.
MIXING WINDS........NORTHWEST 30 MPH.

.TONIGHT...
SKY/WEATHER.........MOSTLY CLOUDY (45-55 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (40-50 PERCENT).
MIN TEMPERATURE.....21-26.
MAX HUMIDITY........70-75 PERCENT.
WIND (20 FT)........NORTH WINDS DECREASING TO 8 TO 12 MPH AROUND SUNSET...
                    BECOMING LIGHT AND VARIABLE OVERNIGHT.
LAL.................1.
CWR.................ZERO.
MIXING HEIGHT.......300 FT AGL.
MIXING WINDS........NORTH 15 MPH.

.WEDNESDAY...
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT).
MAX TEMPERATURE.....47-52.
MIN HUMIDITY........21-26 PERCENT.
WIND (20 FT)........VARIABLE 2-4 MPH BECOMING NORTHWEST AT 9 TO 14
                    MPH BY LATE MORNING.
LAL.................1.
CWR.................ZERO.
MIXING HEIGHT.......12900 FT AGL.
MIXING WINDS........NORTHWEST 10 MPH.

$$
FORECASTER...GILCHRIST
REQUESTED BY...ANDY OESTRIECH
TYPE OF REQUEST...PRESCRIBED
.TAG 20130430.TINCA.01/GGW