National Highway Traffic Safety Administration (NHTSA) Traffic Fatalities (GoogleCloud BigQuery)

This public dataset was created by the Unites States Department of Transportation's National Highway Traffic Safety Administration (NHTSA) and includes 20 tables that describe numerous aspects of traffic accidents that resulted in fatalities. Aspects of traffic accidents include: the types of cars and roads, the maneuvers that preceded the accident, and the involvement of pedestrians and cyclists. 

Visit https://cloud.google.com/bigquery/public-data/nhtsa for example queries!

NOAA Storm Events Database

This dataset is available to the public and can be attained through csv bulk download. It has a tremendous amount of data for weather events in the United States. The specific fields available can vary based on the type of weather event. For tornado segments, the database includes begin datetime, end datetime, begin lat/lon, end lat/lon, EF value, tornado width, etc.  https://www.ncdc.noaa.gov/swdi/#Intro