FNUS71 KPBZ 111346
FWSPBZ

SPOT FORECAST FOR PORKEY HEIGHTS RX...U.S. FOREST SERVICE ANF
NATIONAL WEATHER SERVICE PITTSBURGH PA
946 AM EDT WED MAY 11 2011

FORECAST IS BASED ON IGNITION TIME OF 1000 EDT ON MAY 11.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

AN UPPER LEVEL RIDGE OF HIGH PRESSURE WILL BRING WARMER
TEMPERATURES INTO THURSDAY. A STALLED FRONT ACROSS OHIO WILL
SLOWLY PUSH EAST WITH A CHANCE OF SHOWERS AND STORMS LATER
THURSDAY. EASTERN HALF OF THE PITTSBURGH CWA WILL REMAIN
DRY THROUGH THE DAY TODAY WITH A SLIGHT CHANCE OF RAIN TOMORROW
AFTERNOON.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT).
MAX TEMPERATURE.....AROUND 74.
MIN HUMIDITY........32 PERCENT.
WIND (20 FT)........EAST WINDS 5 TO 6 MPH.
CHANCE OF PCPN......10 PERCENT.
LAL.................1.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......400-1400 FT AGL...INCREASING TO 4800-5700 FT
                    AGL.
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT).
MIN TEMPERATURE.....AROUND 50.
MAX HUMIDITY........73 PERCENT.
WIND (20 FT)........EAST WINDS 5 TO 6 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.......4200-5600 FT AGL...DECREASING TO 600-1200 FT
                    AGL.
TRANSPORT WINDS.....SOUTHEAST AROUND 11 MPH.

.THURSDAY...

SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT).
MAX TEMPERATURE.....AROUND 78.
MIN HUMIDITY........38 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 5 TO 6 MPH.
CHANCE OF PCPN......10 PERCENT.
LAL.................1.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......600-2400 FT AGL...INCREASING TO 2900-4300 FT
                    AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH.

$$
FORECASTER...99
REQUESTED BY...GARY KOLESAR
TYPE OF REQUEST...PRESCRIBED
.TAG 20110511.PORKE.02/PBZ