Take the necessary actions to protect flood-prone property. If travel is required, do not drive around barricades or through water of unknown depth.

* WHAT...One to two feet of inundation above ground level expected in low-lying areas near shorelines and tidal waterways (4.0 to 14.3 feet Mean Lower Low Water). Significant beach erosion along the coast. * WHERE...Eastern Massachusetts coast including Cape Cod and the Islands. * WHEN...From noon to 5 PM EST Tuesday. * IMPACTS...Many coastal roads become impassable around high tide. Flooding 1 to 2 feet deep affects some coastal roads and low lying areas from Revere and Winthrop through Boston to the South Shore and communities along Cape Cod Bay. Flooding also affects roads near Edgartown Harbor and Nantucket Harbor, and approaches Five Corners in Vineyard Haven. * ADDITIONAL DETAILS...Minor flooding is possible during the early Wednesday morning high tide.