The weather observed at ANDREWS AFB, MD (KADW) at 01:55 AM EST was: The skies were clear. Temperature: 45F ( 7C) Dewpoint: 29F ( -2C) Relative Humidity: 53% Winds from the N (350 degs) at 15 mph. Pressure: 1017.9 millibars. Altimeter:30.04 inches of mercury. The prevailing visibility was 10 miles. The weather observed at PATUXENT RIVER, MD (KNHK) at 01:52 AM EST was: The skies were clear. Temperature: 50F ( 10C) Dewpoint: 32F ( 0C) Relative Humidity: 50% Winds from the NNW(340 degs) at 15 mph. Pressure: 1017.4 millibars. Altimeter:30.05 inches of mercury. The prevailing visibility was 10 miles.