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 291224 AFDPBZ AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 824 AM EDT WED OCT 29 2014 .SYNOPSIS...
-- Changed Discussion --
A WEAK GREAT LAKES DISTURBANCE TONIGHT WILL BE FOLLOWED BY BUILDING HIGH PRESSURE THURSDAY. LOW PRESSURE WILL BRING UNSETTLED WEATHER FRIDAY INTO SATURDAY.
-- End Changed Discussion --
&& .NEAR TERM /THROUGH TONIGHT/...
-- Changed Discussion --
POST FRONTAL SHWRS SE OF PIT SHOULD END LTR THIS MRNG. OTRW EXP A GRDL DCR IN CLD COVER ERLY TDA...THOUGH SC IS EXPD TO DVLP THRU THE AFTN WITH COOL AIR ALOFT. A WK SHRTWV IS PROGGED TO CROSS THE GT LKS RGN TNGT WITH AN INCR IN SC. LOW CHCS FOR SHWRS WERE MAINTAINED N OF I 80 WITH THIS FEATURE WITH SOME VRY LTD LK ENHANCEMENT PSBL. NR SEASONAL AVG TEMPS ARE EXPD THRU TNGT.
-- End Changed Discussion --
&& .SHORT TERM /THURSDAY THROUGH SATURDAY/...
-- Changed Discussion --
SFC HIGH PRES IS EXPD TO BLD IN UNDER BROAD UPR TROFG THU. THE UPR TROF IS EXPD TO DEEPEN BY FRI INTO THE WKEND AS AN ASSOCIATED SFC LOW AND CDFNT ADVN ACRS THE RGN. THIS WL BRING INCRG SHWR CHCS FRI. THE DEEPENING TROF AND MOISTURE SWATH ACRS THE AREA IS EXPD TO ALLOW PCPN TO CONT FRI NGT INTO SAT AS THE SFC LOW SHIFTS EWD. COLD ADVCTN BEHIND THE LOW COULD ALLOW FOR A RAIN/SNOW SHWR MIX...OR A CHG OVR TO ALL SNW ESP IN THE RIDGES SE OF PIT. CRITICAL THICKNESSES AND SOUNDING PROFILES ARE MARGINAL HOWEVER. THE UPR TROF IS PROGGED TO BEGIN TO SHIFT EWD SAT EVE WITH DCRG PCPN CHCS. TEMPS SHOULD AVG 5-10 DEG BLO SEASONAL LVLS LT THIS WK...AND 10-15 DEG BLO AVG SAT.
-- End Changed Discussion --
&& .LONG TERM /SATURDAY NIGHT THROUGH TUESDAY/... WPC SUGGESTS FOLLOWING ENSEMBLE MEANS IN THIS ANOMALOUS PATTERN AND SEE NO REASON TO DISAGREE. HIGH PRESSURE WILL BUILD IN BEHIND THE DEPARTING DEEP SYSTEM. WITH THE NORTHEAST TROUGH HANGING AROUND THROUGH THE WEEKEND...TEMPERATURES WILL CONTINUE TO RUN WELL BELOW NORMAL. SATURDAY NIGHT MAY BE THE COLDEST OF THE SEASON THUS FAR WITH WIDESPREAD READINGS IN THE 20S. MODERATION CAN BE EXPECTED FOR MONDAY AND TUESDAY AS RIDGING DEVELOPS ONCE AGAIN. THE NEXT FRONT MAY ARRIVE COME TUESDAY NIGHT OR WEDNESDAY WITH RAIN SHOWER CHANCES. && .AVIATION /12Z WEDNESDAY THROUGH SUNDAY/...
-- Changed Discussion --
DRY ADVCTN IN THE WAKE OF LAST EVES FRONT WL MAINTAIN VFR TDA...BUT PASSAGE OF A REINFORCING CDFNT IS PROGGED TO VEER THE WIND TO THE NW TNGT...WITH COLD ADVCTN OFF THE GREAT LAKES FUELING MVFR STRATOCU DVLPMNT FOR MOST TERMINALS. OUTLOOK.../WEDNESDAY NIGHT THROUGH SUNDAY/... WIDESPREAD RESTRICTION POTENTIAL IS EXPECTED ON FRIDAY AS DEEPENING LOW PRES IS PROJECTED TO SHUNT A BROAD MSTR SWATH OVR THE UPR OH REGION. ENSUING COLD ADVCTN WL MAINTAIN STRATOCU POTENTIAL UNTIL SFC HIGH STRENGTHENS ON SUNDAY.
-- End Changed Discussion --
&& .PBZ WATCHES/WARNINGS/ADVISORIES... MD...NONE. OH...NONE. PA...NONE. WV...NONE. && $$ 07/15

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