High-Impact Weather and Climate Events

High-impact events cause the majority of societal costs related to weather and climate. They provoke societal responses that can either enhance or detract from long-term adaptation to climate risk. In 2015, WWA began a new research focus on extremes that is designed to place high-impact events in the context of historical climate variability and projected climate change, assess how the risk of these events varies over time and space, and examine how high-impact events interact with place-based vulnerability.

The first activities in this new research theme have been to build a database of 160+ historical high-impact weather and climate events in the three-state region, and to generate a complementary set of regional event maps showing how risk varies seasonally across the region for different types of weather and climate events.

Note: The High-Impact Events Database is currently being updated with more features. Stay tuned.

Filter between two years
State County City Date Event Type Deaths CPI-Adjusted Damage Unadjusted Damage Summary Links
Colorado Boulder Louisville, Superior December 30, 2021 Wildfire, High Wind 2 $513,212,589
Colorado, Wyoming December 15, 2021 High Wind
Colorado Denver, Adams, Arapahoe, Boulder, Broomfield, Jefferson, Weld October 12, 2021 Drought
Utah Emery August 02, 2021 Flood 1
Colorado Garfield Glenwood Springs July 29, 2021 Landslide
Colorado Larimer Rustic July 20, 2021 Flood, Landslide 3
Colorado, Wyoming March 13, 2021 Winter Storm $75,000,000
Utah Salt Lake February 17, 2021 Avalanche, Winter Storm
Utah Salt Lake February 06, 2021 Avalanche 4
Colorado Grand, Larimer Kremmling, Estes Park, Grand Lake, Granby October 14, 2020 Wildfire
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