FNUS75 KTFX 231431
FWSTFX

SPOT FORECAST FOR HARRISON CREEK...LEWIS & CLARK NATIONAL FOREST
NATIONAL WEATHER SERVICE GREAT FALLS MT
831 AM MDT MON JUL 23 2012

FORECAST IS BASED ON REQUEST TIME OF 0803 MDT ON JULY 23.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
SCATTERED SHOWERS AND THUNDERSTORMS WILL DEVELOP BY THIS AFTERNOON
ALONG A PACIFIC COLD FRONT MOVING THROUGH THE AREA. ABOVE NORMAL
TEMPERATURES AGAIN TODAY WILL CAUSE RELATIVE HUMIDITIES TO FALL TO
AROUND 20 PERCENT. THIS DRY AIR AT THE SURFACE WILL LIKELY CAUSE
GUSTY ERRATIC WINDS WITH ANY THUNDERSTORMS THAT DO DEVELOP. WINDS
WILL ALSO BECOME GUSTY OUT OF THE WEST WITH THE PASSAGE OF THE COLD
FRONT THIS AFTERNOON. ALTHOUGH NO RED FLAG WARNING IS IN EFFECT FOR
THE FIRE AREA...FIRE CONDITIONS WILL REMAIN MARGINAL FOR RED FLAG
CRITERIA (INCLUDING HUMIDITY...WINDS...ETC.). STORMS WILL LIKELY
DIMINISH DURING THE EVENING...THEN CONDITIONS WILL REMAIN DRY THROUGH
AT LEAST TUESDAY. WINDS WILL ALSO LIKELY BECOME GUSTY AGAIN ON
TUESDAY AS BREEZY MID LEVEL WINDS MIX DOWN TO THE SURFACE.  COULSTON

.TODAY...

SKY/WEATHER.........PARTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
                    THUNDERSTORMS IN THE MORNING...THEN SCATTERED
                    SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. SOME
                    THUNDERSTORMS MAY PRODUCE GUSTY ERRATIC WINDS
                    IN THE AFTERNOON.
CWR.................20 PERCENT.
MAX TEMPERATURE.....78-83.
MIN HUMIDITY........17-22 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS UP TO 10 MPH IN THE
                    MORNING...SHIFTING TO THE WEST 10 TO 20 MPH WITH
                    GUSTS UP TO 25 MPH IN THE AFTERNOON.
RIDGE TOP WIND......SOUTHWEST 10 TO 20 MPH IN THE MORNING INCREASING
                    TO 20 TO 30 MPH IN THE AFTERNOON.
LAL.................2 UNTIL 1200...THEN 3.
HAINES INDEX........5 MODERATE.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
                    CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
                    EVENING. SOME THUNDERSTORMS MAY PRODUCE GUSTY
                    ERRATIC WINDS IN THE EVENING.
CWR.................40 PERCENT.
MIN TEMPERATURE.....41-46.
MAX HUMIDITY........76-81 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO 25 MPH
                    IN THE EVENING...SHIFTING TO THE WEST UP TO 10 MPH
                    AFTER MIDNIGHT.
RIDGE TOP WIND......WEST 20 TO 30 MPH.
LAL.................3 UNTIL 2400...THEN 1.
HAINES INDEX........4 LOW.

.TUESDAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....72-77.
MIN HUMIDITY........12-17 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 10 MPH IN THE
                    MORNING...SHIFTING TO THE WEST AROUND 15 MPH WITH
                    GUSTS TO 25 MPH IN THE AFTERNOON.
RIDGE TOP WIND......WEST 20 TO 30 MPH.
LAL.................1.
HAINES INDEX........5 MODERATE.

$$
FORECASTER...COULSTON
REQUESTED BY...MARK CONWAY
TYPE OF REQUEST...WILDFIRE
.TAG 20120723.HARRI.01/TFX