Major Weather Events and Impacts of 2021 is sponsored by the American Meteorological Society and organized by the AMS Board on Societal Impacts.

The Major Weather Events and Societal Impacts of 2021 symposium will have a Presidential Session, as well as poster and one-day sessions that are drawn from submitted abstracts and invited speakers. The Presidential Session will address national and human security impacts of extreme weather and climatic events during the last decade, while the general sessions will focus on significant weather and climate events and their related societal impacts during the last year (from about October 2020 through September 2021), but allow for international events to be considered.

Presentations and posters should include:

• A brief meteorological/climatological review of the event that includes an assessment of its extremeness;
• Describe why the event was considered major in its societal impacts and what was learned about observing, forecasting and communicating the event;
• Due to the unusual circumstance of last year’s pandemic, feel free to include impacts related to ‘social distancing’, lack of resources, or any other major Covid-19-related consequences.

Note: Due to the limited number of time slots for oral presentations, authors should contact the chairpersons prior to submitting their abstract. This helps with planning purposes and to balance the number of invited speakers and submitted abstracts. We will try to hold a slot or two for events that occur close to the abstract deadline of October 1^st, 2021. Submitted abstracts will be notified of acceptance no later than 15 November 2021, which is later than other conferences at the annual meeting.