Low pressure over the Great Lakes will continue to weaken as it moves eastward into Ontario today. Moisture will wrap around this system and spread across northern Ohio today keeping us mostly cloudy with some spotty drizzle possible. Highs today will be in the mid to upper 30s.
Some slight colder air will arrive tonight and the flow will become more west-northwesterly across the lake. Scattered lake effect snow showers will develop, especially across the snow belt. Most of this activity should be light. Lows tonight will be in the 20s.
Sunday will be mostly cloudy with a chance of snow showers, especially across the snow belt. Highs on Sunday will be in the mid 30s.
High pressure will build across the state Sunday night and Monday bringing us a brief period of fair weather. Lows Sunday night will fall to around 20 degrees with highs on Monday in the upper 30s.
A complex storm system developing over the Plains States will reach the Ohio Valley Monday night and track northeastward across Ohio on Tuesday. Rain or a wintry mix will spread northeastward across the region Monday night, changing to all rain Tuesday morning. Then, the system over Ohio will begin to phase with a system near the eastern seaboard. As this takes place, colder air will be drawn into the system and rain will change to snow Tuesday afternoon or Tuesday evening. The snow will then persist into Wednesday.
There is still a great deal of uncertainty regarding the track and strength of this system and the precipitation type and amounts. The forecast for early next week will have to be refined as the event approaches.
Once the main storm system passes, a large upper level low will stall over the eastern Great Lakes and southeastern Canada. This will bring a persistent, cold northwesterly flow to the region for an extended period of time with the threat of snow showers each day right through next weekend.
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