Across Connecticut temperatures are in the upper 40s and low 50s this morning behind a renewed surge of milder and more humid air. This has resulted in the formation of advection fog statewide, with visibilities dropping below a quarter mile in much of the southern half of the state, aiding by light southerly winds coming off the water.
The region lies in the warm sector of a deep area of low pressure located in the great lakes region this morning. As this system advances east-northeastward towards Northern New England winds will shift from south to southwesterly and begin to pick up. An extensive cluster of showers and embedded thunderstorms located over Pennsylvania will approach the region by late morning. This convective activity should help dissipate the dense fog by early afternoon helping to mix it out a bit.
Temperatures should rise into the lower and middle 60s this afternoon ahead of a second batch of convective activity associated with a pre frontal trough that will pivot through the Lower Hudson valley after 3 PM. A final round of showers and storms will come through with the cold front passage later this evening.
In the wake of the cold front skies will clear out and temperatures will plunge. Thursday will be a blustery cold day with temperatures falling from the upper 40’s into the 30’s by the afternoon. The cold weather will stick around into Friday as a clipper system dives south from Alberta, Canada, across the high plains and through the Ohio Valley before emerging south of New England. A period of light snow or snow showers is likely with little accumulation expected. A reinforcing shot of cold air arrives for Saturday with sunshine and high temperatures likely struggling into the 30s.
An active weather pattern will continue into next week.