"This is (insert call sign), with an weather announcement from the National Weather Service.

(Insert Weather Bulletin here)

We ask that all Skywarn stations monitor this frequency and report significant changes in weather conditions. Should severe weather conditions develop, a controlled Skywarn net will be activated.

(Optional: "Are there any Skywarn stations monitoring the frequency at this time?")

This is (insert call sign), clear at (insert time).

(Turn ON weather beep at this time)