What will flood in Virginia if sea level rises 5-10 feet, or more...
Source: Environmental Protection Agency, Maps of Lands Vulnerable to Sea Level Rise: Modeled Elevations Along the U.S. Atlantic and Gulf Coasts
If the earth warms at rates predicted by some studies, the oceans will rise for two main reasons - the expansion of the existing water as it heats, and the addition of additional water as the ice melts off the land at Antarctica. Sea level rise will affect primarily the eastern edge of Virginia, while changes in rainfall/temperature will affect the entire state.
Scientists are monitoring two species that grow on rock outcrops in Shenandoah National Park, three-toothed cinquefoil and Appalachian fir clubmoss. Virginia's mountains are the edge of the current range for those species, so increased temperatures could cause the two species to disappear from Virginia.1
Sea level is rising at nearly an inch a century now. If that continues, in a thousand years the Eastern Shore, Virginia Beach, Norfolk, Chesapeake, and Suffolk could be underwater or become offshore sandbars.
In the next century, the costs of insurance will reflect the perceived risks of flooding during a major storm. Insurance costs will rise, driving new development inland, long before buildings in Norfolk are recycled as oyster reefs or fish swim through the windows.
Seawalls and bulkheads can armor the shoreline temporarily. At some point, only retreat from the rising water will be cost-effective. Civic leaders who champion new development in Norfolk and Virginia Beach, such as the Tide light rail system, will be forced to consider the option of moving infrastructure further inland.
the average temperature has been rising in Virginia since 1970
Source: National Oceanic and Atmospheric Administration, Temperature Trends by State)