1. A system comprising: a data store configured to store data items and probabilities; and a processor in communication with the data store, the processor configured to execute specific computer-executable instructions to at least: receive information regarding a first data item; determine a geographic location of the first data item; determine, based at least in part on a risk model, an event probability associated with a geographic region, the event probability indicating a probability that an event affecting the geographic region will occur, the geographic region including the geographic location of the first data item; obtain, from the data store, a plurality of data items, wherein each of the plurality of data items is associated with a respective geographic location in the geographic region; determine, based at least in part on the risk model, the event probability, and one or more attributes of the first data item, a probability that the event will change a first attribute of the first data item, and a predicted attribute change to the first attribute of the first data item; for individual data items of the plurality of data items, determine, based at least in part on the risk model, the event probability, and one or more attributes of the data item, a probability that the event will change the first attribute of the data item, and a predicted change to the first attribute of the data item; determine a probability associated with the geographic region based at least in part on the event probability, the probabilities that the event will change the first attributes, and the predicted changes to the first attributes; determine a probability category of the first data item based at least in part on: the probability associated with the geographic region, the probability that the event will change the first attribute of the first data item, and the probabilities that the event will change the first attribute of individual data items of the plurality of data items; generate for display a user interface, the user interface including at least: a geographic map identifying the geographic region, the geographic location of the first data item, and the geographic locations of the plurality of items, wherein a shading of an icon displayed at the geographic location of the first data item indicates the probability category of the first data item, and wherein a size of the icon indicates the predicted change to the first attribute of the first data item; and cause display of the user interface.