DENSE FOG ADVISORY IN EFFECT UNTIL 10 PM EST THIS EVENING... * WHAT...Visibility less than one mile in dense fog. * WHERE...In New Jersey, Sussex, Warren, Morris, Hunterdon and Somerset. In Pennsylvania, Carbon, Monroe, Lehigh, Northampton and Upper Bucks. * WHEN...Until 10 PM EST this evening. * IMPACTS...Hazardous driving conditions due to low visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you.