Early Monday afternoon a large low pressure system was moving up the eastern seaboard and will continue to push to the northeast, while high pressure builds in behind it from the northern plains. Meanwhile, a series of strong low pressure systems is moving into the Calfornia coast that will eventually have an impact on our weather later in the week.
A weak quasi-stationary boundary was oriented E-W and draped across the Tennessee Valley to our south, and will generally remain to our south over the next few days. Then as the first west coast system arrives on Wednesday it is expected to ride along this weak boundary and slide northward into Ohio by Thursday then continue northeastward. A brief respit of calm and mild weather will return before the second of the systems appears to arrive and track well north of the region by the weekend. This is expected to bring significant warmth to the region, and a chance of thunderstorms Saturday night into Sunday. Too early to speculate as to whether strong storms will be possible.
Forecast in Detail....
Rest of Monday: Continued cloudy. Light mist or a few drops of rain possible. Foggy again late. Highs in the low to mid 30s. WSW winds 0-10 MPH.
Monday Night: Cloudy. Areas of fog / freezing fog possible. Lows in the upper 20s. Light winds.
Tuesday: Areas of fog in the morning giving way to decreasing clouds in the afternoon. Highs near or around 40. Winds light and variable.
Tuesday Night: Variable cloudiness. Lows in the mid to upper 20s. ENE winds 5-10 MPH.
Wednesday: Becoming cloudy. Rain arriving late. Highs mid/upper 30s. ENE winds 5-15 MPH.
Wednesday Night: Cloudy with periods of rain, heavy at times. A rumble of thunder possible. Lows in the low to mid 30s. East winds 5-15 MPH.
Thursday: Cloudy with periods of rain. Rain could be heavy at times and a few rumbles of thunder are possible. Highs near 40s. Northeast winds 10-20 MPH.
Thursday Night: Cloudy and colder. Rain may change to light snow late. Low in the low 30s. Northwest winds 5-15 MPH.
Friday: Decreasing clouds and mild. High in the mid to upper 30s. Northwest winds 5-10 MPH.
Friday Night and Saturday: Partly cloudy with gradually increasing temperatures. Clouds increase late with slight chance of rain showers. Highs Saturday in the upper 40s. Southeast winds increasing to 10-20 MPH.
Saturday Night and Sunday: Becoming mostly cloudy with rain and thunderstorms likely Sunday morning. Light rain continuing throughout the day Sunday. Rain may change to light snow late Sunday. Highs near 50 then falling. West winds 15-25 MPH becoming northwest at 5-15 MPH late.