- A gust front with an outflow boundary is moving in
![A gust front with an outflow boundary is moving in](http://www.skyartstock.com/peas/W031313S-SKYART.jpg)
- W031313S
- A gust front with an outflow boundary is moving in at dusk, with several merged layers of low, dark clouds followed by changeable skies and a cool wind. A shower in the background is visible as a frozen anvil poking above the shelf cloud at right.
-
+