FNUS75 KTFX 191112
FWSTFX

SPOT FORECAST FOR HOPLEY UNITS...USFS
NATIONAL WEATHER SERVICE GREAT FALLS MT
512 AM MDT TUE MAY 19 2009

FORECAST IS BASED ON IGNITION TIME OF 1000 MDT ON MAY 19.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
SCATTERED SHOWERS WILL CONTINUE THROUGH THE DAY AHEAD OF AN ADVANCING
COLD FRONT. AFTERNOON HEATING WILL LIKELY CAUSE THE THE ATMOSPHERE TO
BECOME EVEN MORE UNSTABLE. ISOLATED THUNDERSTORMS IN THE AFTERNOON
WITH PEA SIZE HAIL AND GUSTY ERRATIC WINDS UP TO 50 MPH ARE POSSIBLE. A
COLD FRONT WILL MOVE THROUGH TONIGHT BRINGING A GUSTY WIND SHIFT TO
THE WEST WITH COOL AND DRY CONDITIONS AFTERWARD.


.TODAY...

SKY/WEATHER.........MOSTLY SUNNY. SCATTERED SHOWERS AND
                    ISOLATED THUNDERSTORMS IN THE AFTERNOON.
CWR.................30 PERCENT.
MAX TEMPERATURE.....75-79.
MIN HUMIDITY........13-16 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 10 MPH INCREASING TO
                    AROUND 15 MPH WITH GUSTS TO AROUND 30 MPH IN
                    THE AFTERNOON. EXPECT ERRATIC GUSTY WINDS IN
                    THE VICINITY OF THUNDERSTORMS.
RIDGE TOP WIND......SOUTHWEST AT 25 MPH GUSTS TO AROUND 35
MIXING HEIGHT.......8500 FT AGL.
MIXING WINDS........SOUTHWEST AROUND 45 MPH.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF THUNDERSTORMS IN THE
                    EVENING. CHANCE OF RAIN SHOWERS THROUGH THE
                    NIGHT.
CWR.................25 PERCENT.
MIN TEMPERATURE.....35-40.
MAX HUMIDITY........73-78 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 10 MPH.EXPECT ERRATIC GUSTY
                    WINDS IN THE VICINITY OF THUNDERSTORMS.
RIDGE TOP WIND......WEST AROUND 15 MPH
MIXING HEIGHT.......1000 FT AGL.
MIXING WINDS........WEST AROUND 20 MPH.

.WEDNESDAY...

SKY/WEATHER.........PARTLY SUNNY.
CWR.................10 PERCENT.
MAX TEMPERATURE.....55-60.
MIN HUMIDITY........15-20 PERCENT.
WIND (20 FT)........WEST WINDS AROUND 15 MPH.
RIDGE TOP WIND......WEST WINDS AROUND 20 MPH.
MIXING HEIGHT.......9000 FT AGL.
MIXING WINDS........WEST AROUND 25 MPH.

$$
FORECASTER...SUK
REQUESTED BY...JIM HOMISON
TYPE OF REQUEST...PRESCRIBED
.TAG 20090519.HOPLE.01/TFX