Strongest tornadoes in every state and Canadian Provence

This map illustrates the maximum intensity of documented tornadoes across the United States and Canada, categorized by state, province, and territory. Using the Enhanced Fujita (EF) Scale (and the original F-scale for historical records), the map highlights the peak severity of tornadic activity ever recorded in each region. Key Insights: The "EF5" Club: A significant portion of the Central U.S. (Tornado Alley) and the Canadian province of Manitoba have recorded the highest possible rating, representing wind speeds over 200 mph. The Northern Frontier: While many Canadian provinces like Ontario and Quebec have seen violent EF4 storms, northern territories such as Nunavut remain classified as EFU (Unknown/Unrated) due to a lack of historical data or infrastructure to record damage. Coastal vs. Interior: The map visually distinguishes the high-frequency zones of the Great Plains and Midwest from the mountainous West and the Far North, where geography and climate typically limit tornado intensity to the EF0–EF2 range. Anomalies: Note that even states not traditionally associated with "Tornado Alley," such as Massachusetts and Pennsylvania, have historical records of violent EF4/EF5 events. Note: Data is based on the highest official rating ever assigned to a tornado within that specific jurisdiction's borders, spanning from early recorded history to the present day.