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 301714 AFDPBZ AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 1214 PM EST FRI JAN 30 2015 .SYNOPSIS... COLDER TEMPERATURES AND SNOW SHOWERS WILL PLAGUE THE UPPER OHIO VALLEY REGION TODAY. HIGH PRESSURE WILL BUILD AND DIMINISH THE SNOW SHOWERS THIS AFTERNOON AND PROVIDE A DRY SATURDAY BEFORE LOW PRESSURE SPREADS MORE PRECIPITATION OVER THE AREA ON SUNDAY. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... NO MAJOR CHGS FOR THE ERLY AFTN UPDT. A GRADUAL DCRS IN SNW SHWR COVG IS EXPD THRU THE AFTN AS AN UPR TROF EXITS AND THE MOISTURE DEPTH DCRS. THE EXCEPTION WL BE IN THE RIDGES SE OF PIT WHERE UPSLOPE FLOW AND MOISTUR IN THE SNW GROWTH RGN WL CONT ACCUMULATING SNW THRU THE AFTN. WITH COLD ADVCTN...FALLING TEMPS ARE EXPD THRU THE DAY. && .SHORT TERM /6 PM THIS EVENING THROUGH SUNDAY/... UPDT TO ISSUE A WINTER STORM WATCH SUN/MON AFT REVIEW OF 12Z GUIDANCE AND COORDINATION WITH SURROUNDING OFFICES. PREVIOUS...SNOW SHOWERS WILL END IN THE RIDGES THIS EVENING AS HIGH PRESSURE SPREADS ACROSS THE REGION. THE ARCTIC AIR MASS WILL QUICKLY SHIFT TOWARD THE NORTHEAST IN RESPONSE TO THE MID-LEVEL RIDGE THAT BUILDS INTO THE UPPER MIDWEST. HIGH PRESSURE WILL KEEP THE AREA DRY SATURDAY. MODELS ARE BEGINNING TO COME INTO AGREEMENT FOR ANOTHER SNOW PRODUCING STORM SUNDAY. STILL LOTS OF UNCERTAINTY ON THE EXACT TRACK OF THE SYSTEM...BUT IT DOES APPEAR THAT MOST IF NOT ALL OF THE AREA WILL BE ON THE COLD SIDE OF THE SURFACE LOW. MODEL DEPICTIONS OF THIS SYSTEM HAVE VARIED GREATLY OVER THE PAST FEW DAYS...SO THERE STILL IS A LOT OF UNCERTAINTY OF WHAT WILL BE THE FINAL SOLUTION. FOR NOW WILL LEAN CLOSE TO THE 21Z SREF SOLUTION AS IT SEEMS TO BE A NICE MIX OF THE 00Z NAM AND GFS. IF THIS SYSTEM AND ITS TRACK COMES TO FRUITION...HEADLINES WILL BE NEEDED. && .LONG TERM /SUNDAY NIGHT THROUGH FRIDAY/... A COLD...WINTER PATTERN WILL CONTINUE FOR THE REST OF THE LONG TERM. THE NEXT BEST CHANCE FOR SNOW SHOWERS WILL ARRIVE LATE IN THE PERIOD. && .AVIATION /17Z FRIDAY THROUGH TUESDAY/... MVFR CIGS WITH IFR VSBY IN SNOW SHWRS WL CONT THIS AFTN. GENL IMPROVEMENT CAN BE ANTICIPATED THEREAFTER AS DRY ADVCTN AND SBSDNC INCRS. SFC WIND ARE EXPECTED TO CONTINUE TO GUST FROM THE W AND NW AT 15 TO 25 KNOTS THROUGH THE DAY. FURTHER IMPROVEMENTS CAN BE EXPECTED AS HIGH PRES BLDS THROUGH SATURDAY MRNG. .OUTLOOK.../SATURDAY NIGHT THROUGH TUESDAY/... WIDESPREAD RESTRICTIONS CAN BE EXPECTED WITH SUNDAY LOW PRES AND WITH A MONDAY CDFNT. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...WINTER STORM WATCH FROM LATE SATURDAY NIGHT THROUGH MONDAY MORNING FOR MDZ001. WIND CHILL ADVISORY FROM 7 PM THIS EVENING TO 10 AM EST SATURDAY FOR MDZ001. WINTER WEATHER ADVISORY UNTIL 7 PM EST THIS EVENING FOR MDZ001. OH...WINTER STORM WATCH FROM LATE SATURDAY NIGHT THROUGH MONDAY MORNING FOR OHZ039>041-048>050-057>059. PA...WINTER STORM WATCH FROM LATE SATURDAY NIGHT THROUGH MONDAY MORNING FOR PAZ007>009-013>016-020>023-029-073>076. WIND CHILL ADVISORY FROM 7 PM THIS EVENING TO 10 AM EST SATURDAY FOR PAZ008-009-015-016-023-074-076. WINTER WEATHER ADVISORY UNTIL 7 PM EST THIS EVENING FOR PAZ074- 076. WV...WINTER STORM WATCH FROM LATE SATURDAY NIGHT THROUGH MONDAY MORNING FOR WVZ001>003-023-041. WIND CHILL ADVISORY FROM 7 PM THIS EVENING TO 10 AM EST SATURDAY FOR WVZ023-041. WINTER WEATHER ADVISORY UNTIL 7 PM EST THIS EVENING FOR WVZ023- 041. && $$ 07/15

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