Typically weather creates an emergency, when either wind or rain causes your tree to fall.
Even strong trees can bow and break when there is a storm. Flooding and downpours can loosen the soil around your tree due to water that accumulates. This weakens the root system, especially in tree species that have shallow roots. With a loose foundation, the tree can easily fall. On the other hand, if there has been a storm with high wind, for example, a tornado, hurricane, windstorm, or rainstorm, then the canopy of the tree can catch too much air, which uproots it from the soil.