Thunderstorms are at the very core of what we here at the SPC forecast. This animation shows the number of risk days of General Thunder (ie: a 10% chance of thunderstorms forecast within 25km or 12-13 miles of a point). You can see how thunderstorms are driven seasonally increasing in the spring as warmer temperatures and higher humidity develops. To learn more about thunderstorms and severe weather associated with them, please visit https://www.spc.noaa.gov/new/SVRclimo/climo.php?parm=anySvr |

This is an urgent weather alert for over one hundred seventy cities across America. Multiple dangerous storms are developing right now and you need to know exactly when they will impact YOUR area and what you need to do to stay safe. Immediate threats starting tomorrow: Severe thunderstorms with seventy mile per hour winds Friday across west Texas. Saturday evening through Saturday night, a dangerous line of severe storms with large hail, damaging winds, and tornado threats from Dallas Fort Wort