Area Forecast Discussion
Issued by NWS Pittsburgh, PA
Issued by NWS Pittsburgh, PA
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