Windstorms occurring during thunderstorm activity are sometimes destructive. The local terrain is inconducive to tornadoes, severe windstorms and thunderstorms. Earlier windstorms that struck Hawaii were not labeled as hurricanes. The local terrain is not conducive to tornadoes, severe windstorms, or thunderstorms. Ontario electricity outages were minor, mostly caused by the windstorms of April 28. The strongest cyclones are called "windstorms" within academia and the insurance industry. Derechos are longer, usually stronger, forms of downburst winds characterized by straight-lined windstorms. Severe local windstorms in Europe that develop from winds off the North Atlantic. Severe European windstorms are often characterized by heavy precipitation as well. Similar cycles occur in association with other disturbances such as fire and windstorms. Strong tides and occasional windstorms further complicate ship movements near the shore. Conversely windstorms can produce too much wind power. The unique architecture of earth houses protects them against severe windstorms. European windstorms occur mainly in the seasons of autumn and winter. Her teaching skills already have Emma starting fires in the middle of windstorms.