135
FXUS61 KPBZ 060126 AAA
AFDPBZ
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PITTSBURGH PA
926 PM EDT SAT SEP 5 2026
WHAT HAS CHANGED
NO MAJOR CHANGES MADE TO THE FORECAST INTO NEXT WEEK.
KEY MESSAGES
1) CLEARING WITH SOME PATCHY FOG TONIGHT
2) HIGH PRESSURE AND A DRIER AIR MASS PROVIDES QUIET WEATHER AND
SEASONABLE TEMPERATURES THROUGH EARLY NEXT WEEK. THEN, A
WARMING TREND PRECEDES THE NEXT COLD FRONT, WHICH MAY ARRIVE BY
WEDNESDAY NIGHT.
DISCUSSION
KEY MESSAGE 1...
ANY REMAINING ISOLATED SHOWERS SOUTH OF I-70 WILL EXIT THE
REGION THIS EVENING AS A COLD FRONT PUSHES SOUTH OF THE AREA.
PATCHY FOG IS POSSIBLE, ESPECIALLY IN AREAS WHERE RAIN FELL THIS
AFTERNOON, THOUGH DRY ADVECTION WITH LIGHT NRLY FLOW SHOULD
LIMIT THIS POTENTIAL FOR MUCH OF THE AREA OUTSIDE OF THE RIVER
VALLEYS. MORE SEASONABLE LOWS AND LOWER HUMIDITY LEVELS ARE
EXPECTED TONIGHT BEHIND THE FRONT.
KEY MESSAGE 2...
THE REMAINDER OF THE HOLIDAY WEEKEND WILL PROVIDE A NEEDED BREAK
FROM THE CONVECTIVE PARADE OUR REGION HAS SEEN LATELY. SURFACE
HIGH PRESSURE SETTLING IN FROM SOUTHEAST CANADA, WITH
NORTHEASTERLY SURFACE LOW. A GOOD DEAL OF SUNSHINE IS FORECAST
BOTH SUNDAY AND LABOR DAY, WITH TEMPERATURES REMAINING AT
SEASONABLE LEVELS.
500MB HEIGHTS RISE AFTER MONDAY AS THE NORTHEAST TROUGH OPENS
AND DEPARTS, AND AS CENTRAL CONUS RIDGING BEGINS TO BUILD ACROSS
THE OHIO VALLEY. THIS WILL LEAD TO A WARMING TREND FOR TUESDAY
AND WEDNESDAY, WITH CONTINUED DRY WEATHER. THE NEXT APPRECIABLE
CHANCE FOR RAIN MAY ARRIVE WITH A COLD FRONT DURING THE
WEDNESDAY NIGHT/THURSDAY PERIOD.
AVIATION /01Z SUNDAY THROUGH THURSDAY/
CONTINUED SOUTHWARD MOVEMENT OF A SURFACE COLD FRONT WILL END
SHOWERS WITHIN THE REGION BY 03Z. SUBSIDENCE AND DRY ADVECTION
WITH GENERALLY LIGHT NNE WIND FILLS IN BEHIND THE BOUNDARY TO
CREATE HIGH CONFIDENCE VFR THROUGH THE TAF PERIOD AS ANY
ADDITIONAL CLOUDS WILL GENERALLY BE SCATTERED CU SUNDAY.
HLG/MGW ARE THE VFR EXCEPTIONS DUE TO THE OCCURRENCE OF RAIN
THIS AFTERNOON AND DELAY IN SURFACE DRYING; THE CLEAR SKIES PLUS
LIGHT ENOUGH WIND MAY FOSTER FOG/LOW STRATUS BETWEEN 08Z-13Z.
OUTLOOK...
HIGH PRESSURE UNDER COOLER NORTHWEST TO NORTHERLY FLOW ALOFT
STRONGLY FAVORS VFR THROUGH THE EARLY PORTION OF NEXT WEEK. ANY
ADDITIONAL RESTRICTIONS WOULD BE TIED TO BRIEF, PRE-DAWN RIVER
VALLEY FOG.
PBZ WATCHES/WARNINGS/ADVISORIES
PA...NONE.
OH...NONE.
WV...NONE.
DISCUSSION...WM/CL
AVIATION...FRAZIER
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