Area Forecast Discussion
Issued by NWS

Current Version | Previous Version | Graphics & Text | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
-- Highlight Changed Discussion --
-- Discussion containing changed information from previous version are highlighted. --
000 FXUS61 KPBZ 282210 AFDPBZ AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 610 PM EDT THU AUG 28 2014 .SYNOPSIS... HIGH PRESSURE WILL KEEP THE REGION DRY THROUGH FRIDAY. WARMTH...HUMIDITY...AND THE RISK FOR SHOWERS AND STORMS RETURNS FOR THE WEEKEND. && .NEAR TERM /UNTIL 6 AM FRIDAY MORNING/...
-- Changed Discussion --
TEMPS WL FALL BLO THE SEASONAL AVGS TONIGHT AS DRY HIGH PRES SLIDES OVR THE REGION. THE COOL MRNG LOWS WERE FORECAST CLOSE TO BIAS CORRECTED GFS MOS...BUT WITH DOWNWARD ADJUSTMENTS FOR THE RIDGE AND NRN COUNTIES.
-- End Changed Discussion --
&& .SHORT TERM /6 AM FRIDAY MORNING THROUGH SUNDAY NIGHT/...
-- Changed Discussion --
AMPLIFYING RIDGE ALOFT...IN ADVN OF NRN PLNS TO UPR MS VALLEY TROF...WL ENSURE PCPN FREE CONDITIONS...BUT WITH WARMING TEMPS INTO SATURDAY. DVLPG SW FLOW AND FORCING FOR ASCENT WITH THE EWD ADVN OF THAT TROF IS FORECAST TO INCRS MSTR AND PCPN CHCS BY SATURDAY AFTN...AND CUMULATE IN LIKELY POPS WITH PASSAGE OF THE TROF AXIS ON SUNDAY. WARM TEMPS THROUGHOUT THE SHORT TERM PD WERE PROGGED USING A BLEND OF ALREADY CLOSE BIAS CORRECTED GFS MOS AND SREF MEANS.
-- End Changed Discussion --
&& .LONG TERM /MONDAY THROUGH THURSDAY/... SVRL DISTURBANCES EMBEDDED IN ZONAL FLOW ALOFT WL KEEP OCNL SHWR AND TSTM CHCS THRU MUCH OF THE LONG TERM PD. THE BEST CHC FOR PCPN WL BE WITH STRONGER WAVE TWD MID WK. TEMPS SHOULD AVG SVRL DEG ABV THE SEASONAL LVLS. && .AVIATION /22Z THURSDAY THROUGH TUESDAY/...
-- Changed Discussion --
DRY SFC HIGH PRES UNDR WEAK WNW FLOW ALOFT WL ENSURE GENL VFR AND LGT SFC WIND THROUGH FRIDAY. SOME FOG IS EXPECTED IN THE RIVER VALLEYS DURING THE PRE DAWN...AND THAT COULD BRIEFLY IMPACT THE SITES CLOSEST TO THE RIVERS. OUTLOOK.../THURSDAY THROUGH MONDAY/... CROSSING LOW PRES IS LIKELY TO GENERATE SHWRS...TSTMS...AND RESTRICTIONS ON SUNDAY.
-- End Changed Discussion --
&& .PBZ WATCHES/WARNINGS/ADVISORIES... MD...NONE. OH...NONE. PA...NONE. WV...NONE. && $$ 15

USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.