FNUS75 KMSO 191539
FWSMSO

SPOT FORECAST FOR CHAFFIN  1
NATIONAL WEATHER SERVICE MISSOULA MT
939 AM MDT TUE OCT 19 2010

FORECAST IS BASED ON IGNITION TIME OF 1130 MDT ON OCTOBER 19.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...INVERSION HEIGHT IS ABOVE 6000 FEET THIS MORNING AND
WILL REMAIN THERE THE NEXT FEW MORNINGS. SO THE UNIT WILL CONTINUE
TO SEE MILD AND DRY NIGHTTIME CONDITIONS COMPARED TO THE VALLEY
BOTTOMS. THE INVERSION WILL WEAKEN AND LIKELY BE BELOW THE UNIT
OVERNIGHT FRIDAY WITH CLOUD COVER AND WEAKENING OF THE RIDGE.
RIDGETOP WINDS WILL BE GENERALLY LESS THEN 10 MPH THROUGH
FRIDAY...THEN INCREASE TO 10 TO 20 MPH OUT OF THE SOUTHWEST MIDDAY
SATURDAY.

.REST OF TODAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....54-59.
MIN HUMIDITY........20-25 PERCENT.
WIND (20 FT)........WEST 4-7 MPH THIS AFTERNOON AND EVENING.
MIXING HEIGHT.......2400 FT AGL.
MIXING WINDS........NORTHWEST 5 MPH.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
CWR.................0 PERCENT.
MIN TEMPERATURE.....36-41.
MAX HUMIDITY........59-64 PERCENT.
WIND (20 FT)........SOUTHWEST 1-3 MPH.
MIXING HEIGHT.......300 FT AGL.
MIXING WINDS........SOUTHWEST 5 MPH.

.WEDNESDAY...

SKY/WEATHER.........MOSTLY SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....59-64.
MIN HUMIDITY........17-22 PERCENT.
WIND (20 FT)........SOUTHWEST 4-8 MPH.
MIXING HEIGHT.......2100 FT AGL.
MIXING WINDS........SOUTH 5 MPH.

.FORECAST DAYS 3 THROUGH 5...
.THURSDAY...
MOSTLY CLEAR. LOWS 38-48. HIGHS 59-65. WINDS GENERALLY LESS
THAN 10 MPH.
.FRIDAY...
PARTLY CLOUDY. LOWS 41-51. HIGHS 62-67. DIURNAL TERRAIN WINDS
TO 10 MPH.
.SATURDAY...
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS. LOWS 42-52. HIGHS
51-61. SOUTHWEST WINDS 10-20 MPH IN THE AFTERNOON.

$$
FORECASTER...WHITMORE
REQUESTED BY...JACQUIE M  PARKS
TYPE OF REQUEST...PRESCRIBED
.TAG 20101019.CHAFF.01/MSO