True or False: Enhanced Fujita ratings are based on observations during the storm.

The correct response, indicating that enhanced Fujita ratings are based on observations during the storm, is classified as false. Enhanced Fujita (EF) ratings are actually determined after the storm has passed. These ratings are assigned based on the evaluation of damage to buildings and vegetation in the affected area, which is then correlated to wind speeds categorized under the EF scale.

Damage assessments are conducted by meteorologists and trained professionals who analyze the destruction, considering various factors such as the type of structures involved and their degrees of damage. The ratings aim to reflect the intensity of the tornado that caused that damage rather than any immediate observations during the tornado event itself.

In summary, the EF ratings facilitate a detailed analysis post-storm to ensure accurate data collection regarding tornado impacts, leading to better preparedness and understanding of severe weather phenomena.