Breadcrumb Home News Economic cost of weather may total $485 billion in U.S. Jun 21, 2011 The economic impacts of routine weather events can add up to 3.4% of the nation's GDP. See the Article Recent News New aviation weather system improves US air travel efficiency and safetyApr 8, 2026 WRF-Hydro Application for National Water Availability Assessment (NWAA)Apr 7, 2026 HUMID Aims to Reduce the Life-threatening Impacts of Extreme Urban HeatApr 2, 2026 NSF NCAR technologies keep travelers on the moveDec 22, 2025 RAL Welcomes New Program Directors to Lead Key Research AreasDec 22, 2025 Congratulations to Kimberly Fewless: UCAR’s next President’s Leadership FellowJan 28, 2026 Just Released! FastEddy® 4.0Oct 27, 2025 NSF NCAR and UCAR researchers win prestigious AMS, AGU honorsDec 22, 2025 Spotlight on Extreme HeatJan 28, 2026