At WeatherNation, we're committed to educating and informing our viewers of all of the threats severe weather can bring. On March 1, the National Weather Service initiates their campaign to prepare us for all of the hazards the Spring season can bring. Severe storms can happen anywhere in the U.S. at any time. Each day through the first week of March, we'll highlight different aspects of hazardous severe thunderstorms and what you need to know to stay safe. In case you missed it, we covered Tornado safety yesterday.

WIND & HAIL

Three things qualify a thunderstorm as severe. Tornadoes are one, wind and hail threats make up the other two, so lets break down those specific hazards. How is hail measured? We break it down for you and show what everyday objects correspond with a certain hail size. https://www.youtube.com/watch?v=aPEqOfpIeCg   When we talk about a severe threat of damaging, straight line winds, here's what you need you know with Meteorologist Erik Kostrzewa. https://www.youtube.com/watch?v=BXBoJOtKbP4   Hail can be the costliest part of thunderstorm damage. Meteorologist Kit Cloninger breaks it down by the numbers. https://www.youtube.com/watch?v=w6hjJ47NQGU   Meteorologist Patrick Crawford explains what it takes for hail stones to form and grow within a thunderstorm. https://www.youtube.com/watch?v=mvapcbRMr-A   Derechos can cause widespread damage across hundreds of square miles. Find out more about this damaging phenomenon. [embed]https://www.youtube.com/watch?v=RPIx3AbQhwI[/embed] What causes wind? It's a simple question, with a scientific answer. Let's break down how and why the wind blows. https://www.youtube.com/watch?v=62CjMA_UR0s