1/17 ALL AM Zones Update: Unsettled Weather Through Wednesday

Low pressure system will tracking from Ohio Valley to the Eastern Great Lakes, will cause a warm front to approach the region. Lift from warm-air advection ahead of this front will cause periods of light rain to develop during the midday hours. Then rain will become steadier and perhaps moderate to heavy times later this afternoon, as more lift and moisture increase along the warm front and a secondary low develops south of Long Island. But not enough rain is anticipated to cause any significant flooding hazards.

There is a chance that low-level temperatures could still support a few patchy areas of sleet or freezing over some interior areas, especially, north of I-84 over the Lower Hudson Valley and Northwest Connecticut. Where few slippery spots could be roads or sidewalks. More information will given in another update later this morning for these individual zones. Temperatures will gradually rise into mid-upper 30s over these Interior locations, and into the lower to middle 40s elsewhere by late afternoon.

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Rain will taper off later tonight to more scattered showers and drizzle, as low pressure occludes and moves slowly northeast of region.  Some areas of patchy fog may also develop overnight. Temperatures will not fall very much from during day. Mostly cloudy skies are expected for Wednesday. Some lingering rain showers or perhaps snow showers for the Interior are still possible on Wednesday as the low occludes with an upper-level disturbance passing through region.

More pleasant weather returns on Thursday as high pressure builds over the region. Temperatures will be above seasonal levels with daytime highs in the mid-upper 40s, over the Interior and closer to 50 for New York City and Philadelphia metro areas and coastal areas. Stay tuned for zone forecast updates this afternoon or evening.