Weather Advisory

  • Low Pressure from the midwest is expected to intensify along the Virginia coast late Tuesday night, then move only slowly east -northeast through Friday. This will provide the region with a prolonged period of onshore flow.
  • Moderate tidal flooding is expected along the Atlantic Coast (both NJ and DE), Delaware Bay, and Raritan Bay, with pockets of major flooding possible, especially along the NJ coast. Minor tidal flooding is expected along the eastern shore of the Chesapeake Bay and Delaware River. Tides to watch are Wednesday afternoon and late Wednesday night, but some minor tidal flooding is even possible as early as the Wednesday morning high tide. Coastal Flood Watches have been issued.
  • 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 Watches may be needed.
  • 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 southern Delaware and Talbot and Caroline Counties. Final tallies will be highly dependent on the final track of the storm.
  • Mainly rain is expected in far southern NJ and along the NJ and DE coast. However, a complex mixture of rain and snow is expected inland. Up to 6 inches is possible in interior sections of the Delmarva and southeast PA. Winter Storm Watches have been posted and expanded for portions of the Mount Holly CWA. 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:
  • Another briefing package will be issued Tuesday afternoon. The briefing package is also available at

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