AREAS OF FOG EARLY TONIGHT................... Areas of fog have developed across portions of the region, with fog dense in spots. Visibilities below a half mile are possible at times. Motorists should use caution if out driving and be prepared for sudden changes in visibilities. Do not assume the road ahead is unobstructed. Use low beam headlights, and leave plenty of distance between your vehicle and others. Additionally, given the recent snowmelt and rainfall, be alert for high water in the typical low-lying trouble spots.