Requirements for the preparation of abstracts of the reports of the International Symposium "Mesoscale and sub-mesoscale processes in the hydrosphere and atmosphere (MSP-2018)". With all questions please contact by e-mail at This email address is being protected from spambots. You need JavaScript enabled to view it.. If within a week of sending the text you did not receive a delivery message by e-mail, please contact the Working Committee by mail or phone. Additional information on the conference will be provided in the Invitation after the adoption of the report.