Weather is a truly amazing phenomenon that we can see every day. But it can be hard to understand what makes some weather so wild! How do tornadoes form? Where do hail stones come from? All these questions and more will be answered in this series. These titles are at a Level 3 and are specifically written for transitional readers. Aligned to Common Core standards & correlated to state standards, Dash is an imprint of Abdo Zoom, a division of ABDO.