National Weather Service (NWS) generally uses a three-tiered approach, consisting of outlooks, watches, and warnings.
A Winter Storm Warning is based on snow amounts. In the mountains, this means eight inches of snow in 12 hours or a foot of snow or more in a day. For the plains, it means six inches of snow in 12 ...
What's the difference between a winter storm watch, an advisory and a warning? And can they mean different things for different parts of Indiana?
A winter storm watch is issued when the weather service believes certain conditions will be possible within 12 to 36 hours. Those conditions include heavy snowfall of 4 or more inches in a 12-hour ...