Chuck Grene in Westminster is perplexed by forecasters' use of the words "watch" and "warning," which he argues "are easy to confuse in the weather context. ... What is the real weather difference between 'watch' and 'warning?' " They're not very intuitive terms, are they? A storm "watch" is issued when the likelihood of the event has increased significantly, but its occurrence, location or timing are still uncertain. A "warning" means the event is occurring, or highly probable, and a threat to life and property.

> Read Frank Roylance's blog on MarylandWeather.com