 And ask how you can qualify for up to $15,000 in bonus gold. Call 800-927-2400. That's 800-927-2400. 800-927-2400. Here's a look at your Delmarva forecast. A heat advisory begins at 10 a.m. tomorrow and remains in effect until 8 p.m. tomorrow night. Mainly clear skies overnight with lows around 75. Winds out of the south 5 to 10 miles per hour.