Area Forecast Discussion
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000 FXUS61 KPBZ 291607 AFDPBZ AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 1107 AM EST THU JAN 29 2015 .SYNOPSIS... CROSSING LOW PRESSURE WILL BRING A WINTRY MIX OF PRECIPITATION TO THE UPPER OHIO REGION TODAY AND SNOW EARLY ON FRIDAY. && .NEAR TERM /UNTIL 6 PM THIS EVENING/...
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PCPN CONTS TO ADVANCE INTO THE RGN WITH AN APCHG SHRTWV. AIR AND ROAD TEMPS RMN BLO FRZG ACRS WRN PA...AND WERE HOVERING NR FRZG ACRS OH. MGW HAS RISEN ABV FRZG BUT GIVEN LOW DEW PTS AND A COLD START SOME FRZG RAIN WL RMN PSBL INTO ERLY AFTN. ONCE WET BULBING ENDS EXP SOME TEWMP RECOVERY IN WRM ADVCTN. SOME SNW COULD MIX IN N OF I 80 AND IN THE RIDGES ESP BY LT AFTN. NUDGED TEMPS TO THE LATEST LAMP NMBRS.
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&& .SHORT TERM /6 PM THIS EVENING THROUGH SATURDAY/...
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A CDFNT WL CROSS THE RGN THIS EVE WITH ANY PCPN CHG TO SNW. A CROSSING UPR TROF WL KEEP SNW SHWR CHCS IN THE RGN THRU FRI. GOOD UPSLOPE FLOW WL ALLOW FOR ADVY LVL SNW ACCUMULATIONS IN THE RIDGES...AND SOME LTD CONNECTION OFF LK HURON COULD ENHANCE ACCUMULATIONS ACRS NW PA. WL CONT THE WINTER WEA ADVYS AS IS ATTM. INVERSION LVLS LWR AND BLDG HIGH PRES SHOULD END ANY SNW SHWRS FRI BY FRI EVE. DRY WEA SHOULD CONT SAT UNDER THE HIGH. WELL BELOW SEASONAL AVG TEMPS WL CONT.
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&& .LONG TERM /SATURDAY NIGHT THROUGH WEDNESDAY/... HIGH LEVELS OF UNCERTAINTY IN THE LONG TERM PARTICULARLY WITH THE SYSTEM THAT COULD AFFECT THE AREA DURING THE SUNDAY/MONDAY TIME FRAME. FOR NOW...CONSISTENCY WILL BE THE NAME OF THE GAME UNTIL THE MODELS PROVIDE A BETTER PICTURE. COLD PATTERN WILL CONTINUE THROUGH THE REMAINDER OF THE LONG TERM. && .AVIATION /16Z THURSDAY THROUGH MONDAY/...
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CONDITION DETERIORATION IS UNDERWAY AND DEGRADATIONS CAN BE EXPECTED INTO FRIDAY AS MIXED PCPN SPREADS OVR UPR OH TERMINALS AND CHANGES TO SNOW WITH CDFNT PASSAGE THIS EVE. IFR CAN BE EXPECTED IN SNOW SHWRS THIS EVE...AND IN WIDESPREAD STRATUS WHICH WL ACCOMPANY THE COLD SURGE OVR THE REGION. .OUTLOOK.../THURSDAY NIGHT THROUGH MONDAY/... IMPROVEMENTS CAN BE EXPECTED AS HIGH PRES BLDS LTR ON SATURDAY...HOWEVER...SNOW AND RESTRICTIONS ARE LIKELY WITH SUNDAY LOW PRES.
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&& .PBZ WATCHES/WARNINGS/ADVISORIES... MD...WINTER WEATHER ADVISORY UNTIL 10 AM EST FRIDAY FOR MDZ001. OH...FREEZING RAIN ADVISORY UNTIL 2 PM EST THIS AFTERNOON FOR OHZ039>041-048>050-057>059-068-069. PA...WINTER WEATHER ADVISORY UNTIL 10 AM EST FRIDAY FOR PAZ007>009- 015-016-023-074-076. FREEZING RAIN ADVISORY UNTIL 4 PM EST THIS AFTERNOON FOR PAZ013-014-020>022-029-031-073-075. WV...FREEZING RAIN ADVISORY UNTIL 2 PM EST THIS AFTERNOON FOR WVZ001>004-012. WINTER WEATHER ADVISORY UNTIL 10 AM EST FRIDAY FOR WVZ023-041. FREEZING RAIN ADVISORY UNTIL 4 PM EST THIS AFTERNOON FOR WVZ021-022. && $$ 07/15

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