FREEZING FOG ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 9 AM EST FRIDAY... * WHAT...Visibility one quarter to one half mile in freezing fog and slippery roadways. * WHERE...Portions of central, northern, northwest and southern New Jersey, east central and southeast Pennsylvania and northern Delaware. * WHEN...From 10 PM this evening to 9 AM EST Friday. * IMPACTS...Hazardous driving conditions due to low visibility and potential frost on bridges. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. Also, be alert for frost on bridge decks causing slippery roads.