Intensifying low pressure over the deep south this morning will move northeastward to the Ohio Valley tonight. Rain is likely today, with periods of heavy rain possible this afternoon. Occasional heavy rain will continue tonight, and some locations could even see a gusty thunderstorm. Rivers and streams are already running high and the flood threat will be elevated through tonight.
Heavy rain will continue into Sunday morning, then the rain will taper to showers Sunday afternoon as the system moves into the eastern Great Lakes. It will be very mild through Sunday across the area.
A strong cold front will move through Sunday night, and temperatures will return to more seasonal levels. Rain showers will change to snow showers Sunday night with snow showers persisting through Monday.
Here is the forecast: For today, rain, heavy at times. Highs in the mid 50s. Winds SW 5-15 mph.
Tonight, rain, heavy at times. There could be a thunderstorm as well. Lows around 50 degrees. Winds S 10-20 mph and gusty.
Sunday, heavy rain likely during the morning, then rain tapering to showers during the afternoon. Highs will be near 60. Winds S 15-25 mph and gusty.
Sunday night, rain showers during the evening will mix with and change to snow showers after midnight. Lows will be around 30.
Monday, mostly cloudy with a chance of snow showers. Highs will be in the low to mid 30s.
Looking ahead: A weak disturbance will move across the area Monday night producing scattered snow showers. Lows will be around 20.
On Tuesday, snow showers will transition to lake effect snow across the snow belt. It will be mostly cloudy elsewhere. Highs will be in the mid 20s.
Christmas Day will be partly to mostly cloudy with a chance of a snow shower. Highs will be near 30.
On Thursday, another system will approach from the west. It will be mostly cloudy with a chance of snow showers. Highs on Thursday will be around 30 degrees.