FNUS75 KMSO 151716
FWSMSO

SPOT FORECAST FOR LAWRENCE MTN
NATIONAL WEATHER SERVICE MISSOULA MT
1116 AM MDT TUE SEP 15 2009

FORECAST IS BASED ON REQUEST TIME OF 1052 MDT ON SEPTEMBER 15.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...A RIDGE OF HIGH PRESSURE BUILDING OVER THE NORTHERN
ROCKIES WILL REMAIN OVER THE REGION THROUGH WEDNESDAY. THIS WILL
HELP TO DRY THE ATMOSPHERE AND RE-ESTABLISH MORNING SURFACE
INVERSIONS...RESULTING IN WEAK WINDS AND POOR MIXING...DEVELOPMENT
OF THERMAL BELTS AND POOR HUMIDITY RECOVERIES IN HIGHER TERRAIN. ON
THURSDAY A LOW PRESSURE SYSTEM IS EXPECTED TO TRACK ACROSS NORTHWEST
MONTANA BRINGING THE POTENTIAL FOR SHOWERS AND THUNDERSTORMS AND
INCREASING WEST WINDS.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....BOTTOM 74-77. TOP 72-75.
MIN HUMIDITY........BOTTOM 28-32 PERCENT. TOP 32-37 PERCENT.
WIND (20 FT)........VARIABLE 3-6 MPH.
MIXING HEIGHT.......4000 FT AGL.
MIXING WINDS........NORTH 5 MPH.
HAINES INDEX........2 VERY LOW.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
CWR.................0 PERCENT.
MIN TEMPERATURE.....BOTTOM 49-54. TOP 55-60.
MAX HUMIDITY........BOTTOM 47-52 PERCENT. TOP 52-57 PERCENT.
WIND (20 FT)........DOWNSLOPE 3-5 MPH...VARIABLE TO 8 MPH IN THE
                    THERMAL BELTS.
MIXING HEIGHT.......700 FT AGL.
MIXING WINDS........NORTHEAST 5 MPH.
HAINES INDEX........2 VERY LOW.

.WEDNESDAY...

SKY/WEATHER.........MOSTLY SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....BOTTOM 75-80. TOP 73-78.
MIN HUMIDITY........BOTTOM 23-28 PERCENT. TOP 27-32 PERCENT.
WIND (20 FT)........EAST WINDS 2-5 MPH BECOMING SOUTH 5-7 MPH
                    IN THE AFTERNOON.
MIXING HEIGHT.......4000 FT AGL.
MIXING WINDS........SOUTHEAST 10 MPH.
HAINES INDEX........2 VERY LOW.

$$
FORECASTER...DEROSA/BAUCK
REQUESTED BY...JEFF MUENSTER
TYPE OF REQUEST...WILDFIRE
.TAG 20090915.LAWRE.01/MSO