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 151429 AFDPBZ AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 1029 AM EDT TUE APR 15 2014 .SYNOPSIS... A STRONG COLD FRONT WILL CROSS THE REGION EARLY THIS MORNING BRINGING MUCH COLDER AIR AND RAIN AND SNOW SHOWERS. WELL BELOW AVERAGE TEMPERATURES ARE EXPECTED THROUGH WEDNESDAY. && .NEAR TERM /UNTIL 6 PM THIS EVENING/...
-- Changed Discussion --
USING SURFACE OBS AND DUAL POL RADAR...SOME MINOR ADJUSTMENTS HAVE BEEN MADE TO THE FORECAST THROUGH THE AFTERNOON WITH SLEET EXPECTED TO MIX IN WITH THE RAIN AND SNOW DURING CHANGEOVER. THIS HAS ALREADY OCCURRED AT THE OFFICE AND SHOULD CONTINUE TO MOVE EASTWARD WITH STRONG COLD ADVECTION CHANGING MOST OF OUR EASTERN OHIO ZONES TO SNOW AS OF THIS HOUR. UPPER LEVEL SUPPORT FOR MODERATE PRECIP SHOULD WEAKEN AS THE LOW- LEVEL JET MOVES EASTWARD. HOWEVER...STRONG COLD ADVECTION WITH TEMPERATURES OF -12C AT 850HPA SHOULD SUPPORT SNOW SHOWERS THROUGH THE AFTERNOON. CONSIDERING HOW WARM IT HAS BEEN...SNOW WILL STRUGGLE TO ACCUMULATE EXCEPT ON ELEVATED AND GRASSY SURFACES. GENERALLY WENT WITH AN INCH OR LESS FOR ACCUMULATIONS THROUGH THIS EVENING. SNOW SHOWERS MAY LINGER IN UPSLOPE LOCATIONS...AND ACCUMULATIONS MAY OCCUR BUT FOR NOW...MAINTAINED THE FORECAST AS IS. TEMPERATURES CONTINUE TO FOLLOW A TREND AS FORECAST SO LITTLE WAS CHANGED. SNOW SHOWERS FROM THE FRONT SHOULD WRAP UP THIS AFTERNOON IN THE FAR EAST.
-- End Changed Discussion --
&& .SHORT TERM /6 PM THIS EVENING THROUGH THURSDAY/... COLD AIR WILL REMAIN IN PLACE INTO EARLY WEDNESDAY MORNING. ANY SNOW SHOWER ACTIVITY SHOULD DECREASE LATE THIS EVENING AS INVERSIONS DROP...SUBSIDENCE INCREASE AND WINDS ALOFT SHIFT TO A MORE NORTHERLY DIRECTION. THE COLDEST AIR BEGINS TO RETREAT NORTHWARD AS DAWN APPROACHES WEDNESDAY. WAA AND SURFACE HIGH WILL PROVIDE A DRY WEDNESDAY WITH SUNSHINE... HOWEVER TEMPS WILL REMAIN BELOW NORMAL. WARMING TREND CONTINUES ON THURSDAY. && .LONG TERM /THURSDAY NIGHT THROUGH MONDAY/... A RETURN TO SPRING FOR THE LONG TERM...WITH THE RISK FOR SHOWERS FRIDAY NIGHT/SAT. && .AVIATION /14Z TUESDAY THROUGH SATURDAY/...
-- Changed Discussion --
MOST SITES HAVE CHANGED OVER TO SNOW...WITH DUJ/LBE/MGW EXPECTED TO CHANGE TO ALL SNOW BY 16Z. IFR SNOW IS EXPECTED FOR A FEW HOURS...WITH CONDITIONS IMPROVING TO MVFR DURING THE EARLY AFTERNOON AS SNOW DIMINISHES IN INTENSITY. OCCASIONAL FLURRIES AND SNOW SHOWERS WILL CONTINUE DUE TO COLD ADVECTION OFF THE GREAT LAKES...KEEPING MVFR STRATOCU UNTIL EARLY WED MORNING. .OUTLOOK.../WEDNESDAY THROUGH SATURDAY/... NXT CHC FOR GENERAL RESTRICTIONS IS EXPECTED WITH A WEEKEND LOW PRES ADVN AND PASSAGE.
-- End Changed Discussion --
&& .PBZ WATCHES/WARNINGS/ADVISORIES... MD...NONE. OH...NONE. PA...NONE. WV...NONE. && $$

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