Figment has released WeatherAlert 1.0 for Mac OS X 10.7 (“Lion”). It’s available for US$9.99 at the Mac App Store in the Weather category.

WeatherAlert monitors for severe weather notices for your location and will display a visual alert when an alert arrives. It’s designed to keep you aware of any severe weather in your area without requiring you to shuffle through multiple pages of a website or click on multiple tabs in an application.

WeatherAlert sits and monitors for severe weather alerts for the entered zip code. If no alerts, the menu bar icon stays greyed out. If there are current alerts, the Dock icon is badged with an ‘!’ and the menu bar icon becomes yellow. Click on the menu bar icon to see what the current alerts are.

You can then click the title of the alert for full details. Preference option for starting the app at login, so you can always be notified. The app polls for alerts from the NOAA every five minutes.