FNUS75 KMSO 171522
FWSMSO

SPOT FORECAST FOR SPRING MINK UNIT 29
NATIONAL WEATHER SERVICE MISSOULA MT
922 AM MDT MON MAY 17 2010

FORECAST IS BASED ON IGNITION TIME OF 1100 MDT ON MAY 17.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...A VERY COMPLEX AND SIGNIFICANT IMPACT PERIOD IS EXPECTED
TODAY THROUGH TUESDAY.  FIRST...A VERY DRY LOW LEVEL ATMOSPHERE AND
INCREASING SOUTHERLY WINDS ALOFT CAN BE EXPECTED TODAY.  HOWEVER...THIS
UNIT SHOULD BE SHELTERED FROM THE STRONGER SOUTH WINDS UNTIL EARLY
AFTERNOON. SECOND...THE ATMOSPHERE SHOULD BECOME QUITE UNSTABLE BY MID
TO LATE AFTERNOON WITH A STORM POSSIBLE IN THE VICINITY.  WITH THE LOW
LEVELS OF THE ATMOSPHERE VERY DRY...THERE WILL BE A SIGNIFICANT POTENTIAL
FOR STRONG GUSTY WINDS. THE THIRD IMPACT IS A COLD FRONT AND
INCREASINGLY MOIST ATMOSPHERE TUESDAY.

.TODAY...

SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF LIGHT RAIN SHOWER AND
                    THUNDERSTORM IN THE MID TO LATE AFTERNOON.
CWR.................10 PERCENT.
MAX TEMPERATURE.....75 TOP TO 80 BOTTOM.
MIN HUMIDITY........14-18 PERCENT.
WIND (20 FT)........VARIABLE TO 5 MPH THIS MORNING...BECOMING SOUTH TO
                    SOUTHWEST 6-10 MPH IN THE EARLY TO MID AFTERNOON.
                    GUSTS UP TO 20 MPH IN THE AFTERNOON. STRONG GUSTY
                    WINDS TO 40 MPH POSSIBLE NEAR ANY STORMS OR SHOWERS IN
                    THE MID TO LATE AFTERNOON.
MIXING HEIGHT.......INCREASING TO 10000 FT AGL IN THE AFTERNOON.
MIXING WINDS........SOUTH 15 MPH.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS
                    AFTER MIDNIGHT.
CWR.................10 PERCENT.
MIN TEMPERATURE.....40-45.
MAX HUMIDITY........71-76 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 5-9 MPH. GUSTS UP TO 20 MPH IN
                    THE EVENING.
MIXING HEIGHT.......800 FT AGL.
MIXING WINDS........SOUTH 15 MPH.

.TUESDAY...

SKY/WEATHER.........CHANCE OF RAIN SHOWERS IN THE MORNING...THEN
                    RAIN SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS
                    IN THE AFTERNOON.
CWR.................50 PERCENT.
MAX TEMPERATURE.....69-74.
MIN HUMIDITY........30-35 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 5-7 MPH BECOMING WEST 8-14
                    MPH WITH GUSTS TO 30 MPH IN THE AFTERNOON.
MIXING HEIGHT.......7000 FT AGL.
MIXING WINDS........SOUTH 15 MPH.

$$
FORECASTER...BAUCK
REQUESTED BY...KELLY MCKEE
TYPE OF REQUEST...PRESCRIBED
.TAG 20100517.SPRIN.01/MSO