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.
All CPI-Adjusted Damage costs are 2022 values, calculated from: https://www.usinflationcalculator.com/. CPI-Adjusted Damage costs are unavailable before the year 1913.
Note: The High-Impact Events Database is currently being updated with more features. Stay tuned.
|State||County||City||Date||Event Type||Deaths||CPI Adjusted||Unadjusted Sort ascending||Summary||Links|
|Colorado, Wyoming||March 13, 2019||Winter Storm, High Wind, Flood||4||$4,573,250,000.00||$4,000,000,000.00|
|Colorado||Denver, Jefferson||Denver, Lakewood, Wheat Ridge, Golden||May 08, 2017||Hail||$3,900,000,000.00||$2,500,000,000.00|
|Colorado||Adams, Arapahoe, Bent, Boulder, Douglas, Denver, El Paso, Gilpin, Jefferson, Larimer, Logan, Pueblo, Morgan, Weld||Loveland, Lyons, Longmont, Jamestown, Boulder, Estes Park, Morrison, Evans, Colorado Springs||September 12, 2013||Flood||10||$2,509,440,000.00||$2,000,000,000.00|
|Colorado||Statewide||October 01, 2002||Drought||$1,949,720,000.00||$1,200,000,000.00|
|Colorado||Denver, Douglas, Arapahoe, Elbert||June 06, 2012||Hail, Flood||$1,273,100,000.00||$1,000,000,000.00|
|Colorado||Arapahoe, Jefferson, Adams||Englewood, Arvada, Wheat Ridge, Lakewood, Brighton||July 20, 2009||Hail||$1,049,090,000.00||$770,000,000.00|
|Colorado||Larimer, Boulder, Jefferson, Denver, Arapahoe, Douglas, El Paso||Denver, Colorado Springs||July 11, 1990||Hail||$1,341,830,000.00||$600,000,000.00|
|Colorado||Grand, Larimer||Kremmling, Estes Park, Grand Lake, Granby||October 14, 2020||Wildfire||$613,253,000.00||$543,000,000.00|
|Colorado||Adams, Arapahoe, Bent, Douglas, Denver, Elbert, El Paso, Larimer, Pueblo, Morgan, Otero, Prowers, Sedgwick, Weld||Denver, Castle Rock, Englewood, Fort Morgan, Sterling, Julesburg, Colorado Springs, Pueblo, Fort Collins, Loveland||June 16, 1965||Flood||21||$5,010,790,000.00||$540,000,000.00|
|Colorado||Boulder||Louisville, Superior||December 30, 2021||Wildfire, High Wind||2||$553,604,000.00||$513,213,000.00|