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Weekly Dry Season Situation Report in the Lower Mekong River Basin - Prepared on: 4/05/2021, covering the week from 27 April–3 May 2021

Situation Report
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1 Introduction

This Weekly Dry Season Situation Report presents a preliminary analysis of the weekly hydrological situation in the Lower Mekong River Basin (LMB) for the period from 27 April to 3 May 2021. The trend and outlook for water levels are also presented.

This analysis is based on the daily hydro-meteorological data provided by the Mekong River Commission (MRC) Member Countries – Cambodia, Lao PDR, Thailand, and Viet Nam – and on satellite data. All water level indicated in this report refers to an above zero gauge of each station.

The report covers the following topics that are updated weekly:

  • General weather patterns, including rainfall patterns over the LMB

  • Water levels in the LMB, including in the Tonle Sap Lake

  • Flash flood and drought situation in the LMB

  • Weather, water level and flash flood forecast, and

  • Possible implications.

Mekong River water levels are updated daily and can be accessed from:

Drought monitoring and forecasting information is available at: Flash flood information is accessible at: