Supporting information for Jackson-Blake et al. (2022), 'Opportunities for seasonal forecasting to support water management outside the tropics', HESS Contents (section numbers refer to sections in the HESS paper): SI1_CatchmentMaps.pdf: Catchment maps for each of the five case study sites. SI2_FirstSurvey_HistoricEvent.pdf: Questions asked as part of the first assessment exercise described in Section 3. In this exercise, stakeholders were asked to pick a historic season when there were problems in their catchment/lake, and then seasonal forecasts were produced for that season. Stakeholders were then asked a set of questions designed to assess: (1) their interpretation of the forecasts, and (2) to what extent they thought forecasts would have been useful for them. Full questions and answers are provided in this pdf. SI3_WindowsOfOpportunity_Responses.xlsx: Full responses to the questionnaire described in Sections 2.2 and 3.2.