Weekly Flooding Report Sep 13 to Sep 19 Prepared for the Niger Country Office of the World Food Programme @cloud2street Highlights of flood risk and flooding this week ● Maradi experienced the greatest rainfall this week on September 12 of 41 mm according to satellite rainfall estimates, but no major flooding was observed. ● Impacts of the historic Niamey floods over the past two weeks are analyzed in detail. ● Water levels remain stable near Diffa, despite receiving rains this week. ● Relatively little rainfall forecasted for the next week. @cloud2street Niger river Niger river levels upstream do not seem to currently exceed the historical September average. Levels also appear to be past normal levels in Niamey on September 6. Some river levels downstream of Niamey could not be observed past September 12 due to clouds. Departments Population* Madaoua, Tahoua 835 Guidan Roumdji, 430 Maradi Ville de Maradi, 420 Maradi *Note because we do not detect urban flooding well, and some areas were missed due to clouds, these are most likely underestimated. @cloud2street Niamey Maximum Flooding over the last two weeks* Terres cultivées Routes Personnes Eau permanente Eau détectée Estimated Impacts Agriculture: 14,022 km2 Population: 20,000 people Roads: 16,829 meters *Max flood levels may overestimate the overall extent @cloud2street Komadougou Yobe, Diffa Water levels appear stable along the Yobe near Diffa. Both images show raw satellite imagery over the city on September 14, with the detailed inset on the right displayed in high resolution @cloud2street More details from last week @cloud2street Areas most likely affected by rainfall alone last week Population and cropland located areas where heavy rainfall occurred (GSMaP>50mm) and in historical flood risk zones between Sept 13 and Sep 19. Maradi experienced the heaviest rainfall, as well as parts of and Diffa and southeast Tahoua. @cloud2street Population and cropland potentially impacted Top 10 Departments Potential population Top 10 Departments Potential crops most Population and most likely likely impacted cropland located in impacted [km2] historically flood-prone Madaoua, Tahoua 835 Madaoua, Tahoua 60 Guidan Roumdji, 430 Guidan Roumdji, 30 areas where heavy Maradi Maradi rainfall occurred Ville de Maradi, 420 Madarounfa, Maradi 20 Maradi Malbaza, Tahoua 410 Malbaza, Tahoua 8 Maïné Soroa, Diffa 330 Ville de Maradi, 5 Maradi Diffa, Diffa 255 Dakoro, Maradi 2 Madarounfa, Maradi 220 Aguié, Maradi 1 Dakoro, Maradi 45 Maïné Soroa, Diffa 0 Illéla, Tahoua 15 Diffa, Diffa 0 Aguié, Maradi 10 Illéla, Tahoua 0 @cloud2street Rainfall by region last week Sep 12, 2019 Maradi: 41mm @cloud2street Rainfall over the last week @cloud2street Forecast over the next four days @cloud2street Forecasted rainfall over the next four days No departments forecasted to be at extreme risk in the next four days. @cloud2street.