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
-- Remove Highlighting --
-- Discussion containing changed information from previous version are highlighted. --
000 FXUS61 KPBZ 200115 AFDPBZ AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 915 PM EDT FRI SEP 19 2014 .SYNOPSIS... HIGH PRESSURE WILL MAINTAIN DRY CONDITIONS THROUGH SATURDAY AS SOUTHERLY WIND WARMS TEMPERATURES UP. SHOWER AND THUNDERSTORM CHANCES WILL INCREASE SUNDAY WITH A COLD FRONT. && .NEAR TERM /THROUGH SATURDAY/...
-- Changed Discussion --
ONLY CHANGES FOR THE LATE EVE UPDATE WERE TO SKY COVER. BROAD SFC HIGH FIRMLY ENTRENCHED OVER NEW ENGLAND WILL ENSURE DRY CONDITIONS PERSIST THROUGH THE NEAR TERM...BUT RESULTING SELY FLOW HAS ADVECTED ATLANTIC MOISTURE ACRS THE ERN SLOPES OF THE APPALACHIANS. LOW PRES DIGGING TWD THE NRN LAKES WL VEER WIND TO THE S ON SATURDAY WITH WARM ADVCTN DRIVING HIGHS SLIGHTLY ABOVE THE AVGS.
-- End Changed Discussion --
&& .SHORT TERM /SATURDAY NIGHT THROUGH MONDAY NIGHT/...
-- Changed Discussion --
MSTR WL INCR SAT NGT ON SWLY WIND AHEAD OF A CDFNT THAT IS XPCD TO CROSS THE RGN ON SUN. THE INCRD MSTR WL KEEP TEMPS FROM FALLING TOO AGGRESSIVELY...AND SHWRS FORMING ALONG THE ADVNG FRONT MAY MOVE INTO FAR NWRN ZONES AFTR MIDNGT. 500 MB SHRTWV TROF IS PROGGED TO ACQUIRE NEUTRAL TO NEGATIVE TILT ON SUN AS IT CROSSES THE SRN GRTLKS. THE CONCURRENCE OF INCRG SHEAR...MSTR ADVCTN AHEAD OF CDFNT...AND INCRG LIFT IS EXPECTED TO PROMOTE DVLPMT OF CNVCTV LINE ALONG THE SURGING FRONT. THE INTENSITY OF THE LINE WL DEPEND UPON AMT OF SUNSHINE THAT OCCURS. PROVIDED DP CNVCTN DVLPS...THERE WILL BE A POTL FOR DMGG WIND GUSTS WITH ORGANIZED CNVCTV LINE SEGMENTS. THIS POTL WILL BE HIGHLIGHTED IN THE HWO ATTM. POPS WERE INCRD CONSIDERABLY ON SUN IN LINE WITH GUIDANCE TRENDS. BEST CHC FOR PCPN APPEARS TO BE SUN AFTN AS CDFNT CROSSES THE RGN. ANY SHWRS WL SHIFT EWD BY EARLY EVE...WITH PERHAPS SOME LAKE-EFFECT SHWRS FORMING ACRS NRN ZONES SUN NGT. SFC HIGH WL BLD IN THE WAKE OF THE FRONT...AND BRING AN END TO PCPN.
-- End Changed Discussion --
&& .LONG TERM /TUESDAY THROUGH FRIDAY/... OVERALL DRY AND COOL PATTERN IS EXPECTED FOR THE REMAINDER OF THE LONG TERM PERIOD. && .AVIATION /01Z SATURDAY THROUGH WEDNESDAY/...
-- Changed Discussion --
WITH EXCEPT FOR POTENTIAL ST/SC AT FKL AND DUJ IN THE PREDAWN...VFR CONDITIONS WL CONT WITH SFC WIND PRECLUDING FOG WHILE VEERING TO THE SOUTH...AND GUSTING NR 20 KT BY SAT AFTN. OUTLOOK...FRIDAY NIGHT THROUGH TUESDAY... GENERAL RESTRICTIONS AND GUSTY WINDS ARE LIKELY WITH A SUNDAY CDFNT.
-- 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.