FNUS71 KPBZ 221931
FWSPBZ

SPOT FORECAST FOR UPPERMILLSTONE RX09...U.S. FOREST SERVICE ANF
NATIONAL WEATHER SERVICE PITTSBURGH PA
331 PM EDT WED APR 22 2009

FORECAST IS BASED ON IGNITION TIME OF 1400 EDT ON APRIL 23.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

THE LOW PRESSURE SYSTEM WHICH BROUGHT THE UNSETTLED WEATHER OVER
THE LAST FEW DAYS...WILL MOVE NORTHEAST OF THE REGION TONIGHT.
HIGH PRESSURE WILL BUILD IN THURSDAY...WITH MUCH WARMER AIR
EXPECTED FOR THE WEEKEND.


.THURSDAY...

SKY/WEATHER.........MOSTLY SUNNY (45-55 PERCENT). A SLIGHT CHANCE
                    OF RAIN SHOWERS IN THE MORNING.
MAX TEMPERATURE.....AROUND 52.
MIN HUMIDITY........39 PERCENT.
WIND (20 FT)........WEST WINDS 8 TO 11 MPH.
CHANCE OF PCPN......10 PERCENT.
LAL.................1.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2400-3500 FT AGL.
MIXING WINDS........NORTHWEST AROUND 23 MPH.

.THURSDAY NIGHT...

SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT).
MIN TEMPERATURE.....AROUND 37.
MAX HUMIDITY........74 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 9 MPH IN THE
                    EVENING...BECOMING LIGHT AND VARIABLE.
CHANCE OF PCPN......10 PERCENT.
LAL.................1.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......900-2700 FT AGL...DECREASING TO 500-700 FT AGL
                    LATE.
MIXING WINDS........WEST AROUND 15 MPH.

.FRIDAY...

SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT).
MAX TEMPERATURE.....AROUND 75.
MIN HUMIDITY........34 PERCENT.
WIND (20 FT)........SOUTH WINDS 7 TO 12 MPH.
CHANCE OF PCPN......10 PERCENT.
LAL.................1.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......500-2300 FT AGL...INCREASING TO 2600-3600 FT
                    AGL EARLY IN THE AFTERNOON.
MIXING WINDS........SOUTHWEST AROUND 19 MPH.

$$
FORECASTER...99
REQUESTED BY...GARY KOLESAR
TYPE OF REQUEST...PRESCRIBED
.TAG 20090423.UPPER.01/PBZ