550
FXUS61 KPBZ 280627
AFDPBZ
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PITTSBURGH PA
227 AM EDT WED OCT 28 2026
WHAT HAS CHANGED
UPDATE TO KEY MESSAGES.
KEY MESSAGES
1) QUIET WEATHER AND ABOVE-AVERAGE TEMPERATURES CONTINUE.
LIGHT RAIN EXPECTED LATE SUNDAY INTO MONDAY.
2) ADDITIONAL RAIN CHANCES NEXT WEEK
DISCUSSION
KEY MESSAGE 1...
THE POTENTIAL FOR HAZARDOUS WEATHER REMAINS LOW THROUGHOUT THE
WEEK AND INTO THE WEEKEND AS HIGH PRESSURE PERSISTS.
TEMPERATURES ARE EXPECTED TO TREND AROUND 10 DEGREES ABOVE
AVERAGE, THROUGH THE PROBABILITY OF RECORD-HIGH TEMPERATURES
REMAINS LOW.
PRECIPITATION CHANCES INCREASE LATE SUNDAY INTO MONDAY AS A WEAK
DISTURBANCE DEVELOPS NEAR THE GREAT PLAINS AND TRACKS EASTWARD.
FORECAST RAINFALL AMOUNTS HAVE TRENDED DOWNWARD OVER THE PAST 24
HOURS, WITH LESS THAN A 30% CHANCE OF EXCEEDING 0.50 INCHES.
KEY MESSAGE 2...
OVER THE PAST 24 HOURS, LONG-RANGE MODELS HAVE INCREASINGLY
INDICATED THE DEVELOPMENT OF A LARGE-SCALE LOW-PRESSURE SYSTEM
OVER THE CENTRAL CONUS LATE MONDAY INTO TUESDAY. DEPENDING ON
THE EVOLUTION AND TRACK OF THIS SYSTEM, PERIOD OF HEAVY
RAINFALL COULD IMPACT PORTIONS OF THE OHIO RIVER VALLEY BY
MIDWEEK. CURRENT PROBABILITIES INDICATE A 20-30% CHANCE OF
RAINFALL EXCEEDING 1 INCH.
AVIATION /06Z WEDNESDAY THROUGH SUNDAY/
HIGH-LEVEL CLOUDS WILL PERSIST ACROSS THE REGION AS A WEAK
DISTURBANCE MOVES THROUGH THE GREAT LAKES. THE CLOUD COVER WILL
LIMIT RADIATIONAL COOLING, REDUCING THE POTENTIAL FOR RIVER
VALLEY FOG THIS MORNING.
VFR CONDITIONS AND LIGHT WINDS ARE EXPECTED OVER THE NEXT 24 TO
48 HOURS.
ON FRIDAY, A PASSING COLD FRONT OVER THE GREAT LAKES MAY RETURN
CIG RESTRICTIONS MAINLY TO THE NORTHERN PORTS.
OUTLOOK...
LIGHT RAIN IS EXPECTED TO RETURN LATE SUNDAY INTO MONDAY WITH
LARGE-SCALE DISTURBANCE.
PBZ WATCHES/WARNINGS/ADVISORIES
PA...NONE.
OH...NONE.
WV...NONE.
DISCUSSION...HEFFERAN
AVIATION...HEFFERAN
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