Low Pressure along the Virginia coast this morning will intensify as it moves slowly out to sea through Friday, providing the region with a prolonged period of onshore flow.
Widespread moderate tidal flooding is still expected along the Atlantic Coast (both NJ and DE), Delaware Bay, and Raritan Bay, with pockets of major flooding possible along the DE and NJ coast during the high tide cycle late tonight into early Thursday morning. Coastal Flood Warnings are posted. Based on current guidance, minor tidal flooding is expected along the eastern shore of the Chesapeake Bay and Delaware River, with the Wednesday night high tide of greatest concern. Expect minor tidal flooding along the coast and back bays with the Wednesday afternoon high tide.
Winds could gust to 60 MPH along the Delaware and southern NJ coasts. Gusts in the 35 to 45 mph range are possible further inland, even in eastern PA. High Wind Warnings are posted for our coastal areas, and Wind Advisories are posted just inland from there.
Based on current model tracks, around one-half inch of liquid equivalent precipitation (if it all fell as rain) is expected in the southern Poconos and northern New Jersey, with up to 2.0 inches possible in far southern Delaware and Talbot and Caroline Counties. Final tallies will be highly dependent on the final track of the storm.
Mainly rain is expected today…changing over to snow late in the day or this evening. Even where the changeover to snow does occur during the afternoon commute, no significant accumulation is expected on roadways. The highest snowfall totals are expected in Chester County and Cecil County where up to 6 inches is possible. Generally 1 to 2 inches is expected across most of the Delmarva and southern NJ the Poconos and northwest NJ. Generally 2 to 4 inches is expected elsewhere. Winter Storm Warnings and Winter Weather Advisories are posted . This will be a heavy wet snow, which combined with strong winds, could bring down trees and power lines.
No river flooding is expected from this event.
Please check our website for up-to-date information: www.weather.gov/phi
The briefing package is also available at: http://www.erh.noaa.gov/phi/briefing/packages/current_briefing.pdf