URGENT - WINTER WEATHER MESSAGENATIONAL WEATHER SERVICE NORTHERN INDIANA326 PM EST TUE DEC 17 2013...BLOWING AND DRIFTING SNOW MAY TO LEAD TO TRAVEL CONCERNSTHROUGH THIS EVENING...AROUND AN INCH OF DRY SNOW FELL AS THE FRONT PASSED TODAY. THISNEW SNOW IN ADDITION TO WHAT IS ALREADY ON THE GROUND WIL