MENU Dry Outflow from Ruaha Park 68 km. from Park HQ The surface flow is visibly retreating towards the Ruaha Park Headquarter (Center of Park). Flow at the Msembe Bridge (reference location for “Zero Flow”) is still adequate to reach this downstream location.
Category Archives: Alerts
Flow Ruaha Park HQ
MENU On September 24, 2026 sustained flow at Ruaha Park HQ Although declining conditions have been system-assessed since 4 September 2026, observations published by local contributors continued to show sustained flow on 24 September. “System-assessed” means that the hydrological state was derived by the Ruaha Flow Monitoring System from satellite observations and governed processing rules,Continue reading “Flow Ruaha Park HQ”
Critical Low Outflow Ihefu Swamp
MENU Overflow Ihefu Swamp reaches critical low level on September 22, 2026 With the critical low outflow at VDAS 405 (idodi) some 30km downstream of the N’giriama sill, zero flow at Park HQ is immenent and expected in October 2026.
Flow status Usangu Rice Drainage
MENU September 12, 2026 Alert 3 Confirmed Nyaluhanga reached an advanced low-flow transition in mid-September 2026.On 7 September, both fixed branch-inlet indicators (A16 and A17) were still WATER-classified. A16 changed to NO-WATER by 12 September while A17 remained WATER, marking the presently identified candidate ALERT 3 transition on 12 September. A17 subsequently changed to NO-WATERContinue reading “Flow status Usangu Rice Drainage”
Kapunga Intake and Abstraction
MENU Pre-IRR Kapunga with critical flow in Ruaha and imminent zero flow Ruaha River at Park HQ Kapunga Intake on August 5, 2026 and HR Nov 10, 2023 On November 10, 2023, the Ruaha River flow dropped under the critically low flow level (zero flow at Ruaha Park HQ Oct. 17 2023). The first riceContinue reading “Kapunga Intake and Abstraction”
Alerts 2026
MENU ALERT 3 — Nyaluhanga, 12 September 2026 Satellite monitoring indicates that the Nyaluhanga branch reached its critical low-flow transition around 12 September 2026. The change was detected at the fixed branch-inlet monitoring points and was followed by further retreat, with both indicators showing NO-WATER conditions by 17 September. The 12 September date is presentlyContinue reading “Alerts 2026”
Zero Drainage Usangu Rice Plain
October 27, 2025 zero drainage Usangu observed Longer zero periods comes with zero drainage Usangu Flats The first observation of zero drainage from the Usangu Rice Plain is recorded on October 27, 2025. The location is some 4km downstream of the Alert 3 VDAS. The screenshot from the home page of the usangu.majiyetu.org shows theContinue reading “Zero Drainage Usangu Rice Plain”
ALERT 3, July 29, 2025
ALERT 3, July 29, 2025 New detection method detects ALERT 3 on July 29, 2025 An individual pixel based detection of water or no-water facilitates the accurate reporting on retreating river channel. The change of water pixel from partial water to land pixel is the basis for this methodology. Visually detected Zero Flow July 16,Continue reading “ALERT 3, July 29, 2025”
Alert 3, Sep 27, 2024
Alert 3, Sep 27, 2024 Ruaha River Flow Monitor Tool (Remote Sensing) Flow Status Today: 15 Days of Zero Flow at Park HQ in 2024 Alert 3 possibly reached before Alert2 in 2024 To specify the start of the Alert 3 phase is less precise as Alert 2. The drying of branch canal of theContinue reading “Alert 3, Sep 27, 2024”
History of Zero Flow
History of Zero Flow History of Zero Flow Days at Ruaha Park HQ (graph) The table can be found here History of the Length of Zero Flow Series and Low Flow Periods The Ruaha Flow Monitor accumulates a wealth of freely available georeferenced images. By searching on key locations along the Ruaha and Mbarali RiversContinue reading “History of Zero Flow”