Area Forecast Discussion
Issued by NWS

Current Version | Previous Version | Text Only | Print | Product List | Glossary On
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 191909 AFDPBZ AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 309 PM EDT TUE AUG 19 2014 .SYNOPSIS... A SERIES OF DISTURBANCES WILL KEEP OCCASIONAL SHOWER AND THUNDERSTORM CHANCES IN THE FORECAST THROUGH THE REST OF THE WEEK. && .NEAR TERM /UNTIL 6 AM WEDNESDAY MORNING/... A WK MID LVL TROF PRODUCING SCT SHWRS/TSTMS E OF PIT WL EXIT THE RGN THIS EVE. ANOTHER SHRTWV WL ADVN ACRS THE GT LKS AND UPR OH VLY RGN TNGT BRINGING SHWRS/TSTMS. MAINTAINED LIKELY POPS TNGT FOR MOST OF THE AREA WITH SUFFICIENT MOISTURE AND UPR SPPRT. THE TSTMS SHOULD OUTRUN THE BEST INSTBY TO OUR W AND WKN AS THEY APCH. EXP LOWS A FEW DEG ABV AVG. && .SHORT TERM /6 AM WEDNESDAY MORNING THROUGH FRIDAY/... SHWRS AND TSTMS WL CONT INTO WED UNTIL THE SHRTWV BEGINS TO SHIFT E OF THE AREA BY AFTN. WITH THE BEST UPR SPPRT EXITING IN THE AFTN...AND UNIMPRESSIVE SHEAR...ORGANIZED SVR WEA IS NOT EXPD ATTM. A SFC BNDRY IS THEN PROGGED TO SET UP FM SFC LOW PRES OVR THE UPR MIDWEST...SEWD INTO THE OH VLY RGN. THIS WL BCM THE FOCUS FOR SHWRS/TSTMS THU THRU FRI. THE BEST UPR SPPRT...SHEAR AND INSTBY IS PROGGED FOR THU RESULTING IN AT LEAST SOME THREAT FOR SVR WEA MAINLY S AND W OF PIT INVOF THE BNDRY. WITH RATHER HIGH UNCERTAINTY IN THE SPECIFIC DETAILS WL LEAVE MENTION OUT OF HWO FOR NOW. LTL MOVEMENT TO THE BNDRY IS EXPD BY FRI AS THE UPR FLOW TURNS NW AND BCMS ORIENTED WITH THE BNDRY. TEMPS WL RMN NR OR A LTL ABV THE SEASONAL AVGS. && .LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/... LITTLE CHANGE IN THE FORECAST IS EXPECTED. THIS WILL MEAN A CONTINUATION OF SHOWER AND STORM CHANCES DEPENDENT ON TIMING AND LOCATION OF ANY UPPER LEVEL DISTURBANCES THRU ERLY NEXT WEEK. UPPER RIDGING IS PROGGED BY TUESDAY. TEMPS SHOULD REMAIN NEAR OR A FEW DEGREES ABOVE AVERAGE. && .AVIATION /19Z TUESDAY THROUGH SUNDAY/... VFR CONDITIONS EXPECTED WITH RELATIVELY LIGHT WINDS THE REMAINDER OF THE DAY AND THROUGH THE EVENING BEFORE A DISTURBANCE APPROACHING FROM THE WEST PASSES OVERHEAD AND BRINGS A CHANCE OF SHOWERS AND THUNDERSTORMS EARLY WEDNESDAY MORNING. OPTED TO MAINTAIN VCSH IN LATEST TAFS FOR NOW UNTIL THIS FEATURE TRANSITIONS FURTHER EAST AND FORECAST CONFIDENCE INCREASES IN TIMING. OUTLOOK.../WEDNESDAY THROUGH SATURDAY/... SEVERAL CROSSING DISTURBANCES WILL CAUSE PERIODIC RESTRICTIONS INTO THE WEEKEND. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...NONE. OH...NONE. PA...NONE. WV...NONE. && $$ 07/88

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