Sea Surge risk & flood impact assessment in the Coastal Area of Gaza city (Occupied Palestinian Territory) as of 29 August 2025

**UNOSAT code: FL20250828PSE** This map illustrates the current shoreline and the highest observed watermark in the Southern Gaza Strip (Occupied Palestinian Territory), derived from Sentinel-2 and Pleiades imagery acquired on 28 July 2025 and 29 August 2025, respectively. The analysis focuses on the area west of Al Rashid Road, where a very high density of tents has been observed within a small geographic area that is particularly prone to flooding in the event of high tides or storm surges. UNITAR-UNOSAT has identified 2,367 shelters/tents in high-risk areas (within 20 meters of the highest observed watermark) and 3,631 shelters/tents in risk areas (within 50 meters of the highest observed watermark). This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to the United Nations Satellite Centre (UNOSAT).

**UNOSAT code: FL20250818PAK** This map illustrates the satellite detected water extent in Swat District, Khyber Pakhtunkhwa Province, Pakistan as observed from a Sentinel-2 satellite image acquired on 20 August 2025 at 13:35 local time (08:35 UTC). Within the analyzed area of approximately 340 km², about 4 km² of land appears to be affected by floodwaters. Based on WorldPop population data and the flood extent, approximately 134,500 people are potentially exposed or living close to the flooded areas. additional. In addition, UNOSAT identified approximately 3,860 exposed buildings and about 30 km of affected roads. This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to the United Nations Satellite Centre (UNOSAT).

**UNOSAT code: FL20240820TCD** This map illustrates satellite-detected water extent in N'Djamena city, N'Djamena Department, Chad as observed from a PlanetScope satellite image acquired on 26 August 2024. Within the analysed area of about 440 km², a total of about 50km² of lands appear to be affected by flood waters. Within the analysed area approximately 7,900 buildings (<3%) in Chad are affected by the floodwaters. This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to the United Nations Satellite Centre (UNOSAT).

**UNOSAT code: FL20240812YEM** This map illustrates satellite-detected water extent in Al Hodeidah Governorate, Yemen as observed from a Sentinel-2 satellite image acquired on 07 August 2024 at 10:59 local time . Within the cloud free analysed areas of about 20,000 km², a total of about 450 km² of lands appear to be affected with flood waters. Based on Worldpop population data and the flood extent, approximately 170,000 people are potentially exposed or living close to flooded areas. This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to the United Nations Satellite Centre (UNOSAT).

**UNOSAT code CE20231007PS** UNOSAT's satellite-detected damage and destruction to buildings within the area of interest in the Gaza Governorate, Gaza Strip, based on an image collected on 15 October 2023 compared to an image collected on 10 October 2023 (partially clouded), and 10 May 2023 shows a total of 533 destroyed structures, 640 severely damaged structures, and 1273 moderately damaged structures, for a total of 2246 affected buildings as of 15 October 2023. The most affected area appears to be the one south of Ash Shuja'iyeh neighborhood (inset 1), with clouds covered on the 10 October 2023 image. Among the new affected structures, UNOSAT identified two school compounds, namely the Elnoor W Alaml School, moderately affected, and the Islamic University of Gaza, previously cloud-covered and now severely damaged. Additionally, UNOSAT identified 45 affected road sections, either by impact craters or by debris. This is a preliminary analysis and has not yet been validated in the field.

**UNOSAT code: FL20190815SDN** This map illustrates satellite-detected surface water in the eastern part of the Red Sea district in Sudan as observed from Sentinel-2 image acquired on 15 August 2019. Within the analysed area of 1,500km2, 232 km2 of lands appear to be flooded as of 15 August 2019. This is a preliminary analysis and has not yet validated in the field. Please send your ground feedback to UNITAR-UNOSAT