Billion-Dollar Weather and Climate Disasters: Mapping

Use the interactive event frequency and cost mapping tool below to better visualize the spatial dimensions of Billion-dollar weather and climate events. Select the desired disaster type(s) and range of years to visualize how disaster frequency and cost change over space and time.

Please note that the map reflects a summation of billion-dollar events for each state affected (i.e., it does not mean that each state shown suffered at least $1 billion in losses for each event).

Download Mapping Data: xml csv json

In April 2018, NCEI added new mapping functionality to examine state-level costs using two new metrics: 'Cost Per 1 Million Residents' and 'Cost as % of annual Gross State Product'. Each of these metrics offers a way to examine the varying levels of physical exposure and the capacity to absorb the costs incurred from various extreme events.

It is also of note that each geographic region of the U.S. faces a unique combination of weather and climate events. The map above reflects the frequency of the billion-dollar disaster events impacting each state (i.e., does not mean that each state shown has suffered $1 billion in losses for each event). Each disaster type has a distinct footprint of impact over time.

For example, wildfire impacts are most common west of the Plains states and in several Southeastern states. The highest frequency of inland flood (i.e., non-tropical) events often occur in states adjacent to large rivers or the Gulf of Mexico, which is a warm source of moisture to fuel rainstorms. Drought impacts are most focused in the Southern and Plains states where crop and livestock assets are densely populated. Severe local storm events are common across the Plains, the Southeast and the Ohio River Valley states. Winter storm impacts are concentrated in the Northeastern states while tropical cyclone impacts range from Texas to New England but also impact many inland states. In total, the U.S. South/Central and Southeast regions experience a higher frequency of billion-dollar disaster events than any other region.

Citing this information:

NOAA National Centers for Environmental Information (NCEI) U.S. Billion-Dollar Weather and Climate Disasters (2018).