Hanna Overnight Update...

Hanna is charging toward the SC/NC coastline and will make landfall during the early morning hours. It will then move northeast up the coast, drenching the Mid-Atlantic and eventually impacting the New England coast as well. A Flash Flood Watch is in effect for the entire area, as a general 3-4 inch rainfall is likely, with local amounts up to 10 inches. Tropical storm force winds are possible throughout the day along the coast and isolated tornadoes are also possible.

Here's the rundown on what to expect:

LOCATION, MOVEMENT AND STRENGTH (as of the 11 P.M. NHC advisory)

-- About 140 miles south-southwest of Wilmington, NC and 60 miles east-southeast of Charleston, SC
-- Moving north at 20 mph
-- Maximum sustained winds are at 70 mph...it's still possible Hanna could become a hurricane before making landfall along the southern NC or northern SC coast
-- Tropical storm force winds extend outward 260 miles from the center

EXPECTED RAINFALL & WIND

-- A general 3-4 inch rainfall is likely across central and eastern Virginia, with local amounts up to 10 inches
-- Sustained winds near the coast of 30-40 mph with gusts over 50 mph
-- Sustained winds in Metro Richmond of 15-30 mph with gusts to around 40 mph possible

CURRENT WATCHES/WARNINGS (as of the 11 P.M. NHC advisory)

Tropical Storm Warning: From Edisto Beach, SC north to Watch Hill, RI (including Pamlico and Albemarle Sounds, all of Chesapeake Bay, the Tidal Potamac, Washington, D.C., Delaware Bay, New York Harbor and Long Island Sound

Hurricane Watch: From north of South Santee River, SC to Currituck Beach Light, NC, including Pamlico Sound

Tropical Storm Watch: From Watch Hill, RI to Merrimack River, MA, including Block Island, Martha's Vineyard and Nantucket

FORECAST TRACK & INTENSITY

Below is the late night hurricane model output (courtesy of Colorado State University), with the forecast track from the various runs and the intensity forecast...