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#India #Monsoon All-India-Rainfall (AIR) Outlook (April–July) | Interim Prediction. South East Asia Flood Risk predictions 2026 .
This outlook is based on 42 statistical analog seasons, identified using AI (ANN) and advanced statistical modeling applied to long-term climate datasets (ENSO, PDO, Indo-Pacific warming index, and Atmospheric Angular Momentum Plus reconstructed AIR index ) extending back to 1860 . The results represent a probabilistic rainfall pattern, not a deterministic forecast.
🌧️ How to Read the Colors
🟢 Green: Above-average rainfall
🌲 Deep Green: ⚠️ High probability of heavy rainfall / flood risk
⚪ White: Near normal
🟤 Brown: Below-average rainfall (dry conditions)
📅 Temporal Evolution
🔹 April (Pre-Monsoon Phase)
Signals remain weak and scattered. Early moisture build-up appears over the southern Bay of Bengal and parts of Southeast Asia, but rainfall is still localized and not fully organized.
🔹 May (Early Organization Phase)
A clear strengthening trend begins:
Eastern India, Bangladesh, and the Bay of Bengal show deep green anomalies
Increasing activity over southern India
➡️ This points to an early organization and strengthening of the monsoon system
🔹 June (Expansion Phase)
Rainfall becomes more structured and widespread
Strong signals shift toward the Bay of Bengal, eastern India, and Southeast Asia
Parts of central India may experience temporary weakening (break-like phases)
➡️ A developing but regionally uneven monsoon
🔹 July (Peak Phase)
Peak monsoon conditions, though less uniform than classic strong years
Stronger anomalies persist over the northern Bay of Bengal and East Asia, while parts of India show mixed signals
➡️ Suggests active pulses rather than continuous widespread rainfall
⚖️ Strengthening vs Weakening Signals
Strengthening:
Early intensification is evident from May into June, especially across eastern sectors (Bay of Bengal, Bangladesh, Northeast India), indicating a front-loaded monsoon development.
Weakening / Redistribution:
By June–July, signals become less consistent over central and western India, suggesting break phases or shifting rainfall corridors rather than uniform coverage.
⚠️ Flood Risk Regions (Highlighted Boxes)
The highlighted regions align with historically flood-prone zones during monsoon surges, especially under deep green anomalies:
Eastern India & Bangladesh → Primary flood hotspot
Bay of Bengal coastal belt → Surge-driven heavy rainfall
Parts of Southeast Asia → Secondary flood risk
Southern Arabian Sea / Southwest India (early phase) → Localized heavy rainfall risk
🌧️ Philippines (Western Pacific / Maritime Continent)
April–May:
Clear green to deep green anomalies → early moisture buildup
➤ Indicates active convection and strong tropical moisture supply
June:
Signals remain strong and organized
➤ A highly energized Western Pacific feeding the monsoon system
July:
Still positive but slightly weaker in some areas
➤ Continued activity with redistribution of rainfall zones
🌧️ South China (Guangdong, Guangxi, South China Sea)
April:
Weak to moderate signals → early-stage development
May:
Strengthening begins, especially toward the South China Sea
June:
Peak signal with strong green anomalies
➤ Consistent with Meiyu / early summer rainband development
July:
Signals persist but become more diffuse and eastward-shifted
➤ Suggests episodic heavy rainfall and shifting rainbelt dynamics
🌲 Key Risk Indicator
Areas showing deep green anomalies should be closely monitored for:
Intense rainfall bursts
River overflow
Flash flooding during peak phases
🔎 Bottom Line
A relatively early strengthening monsoon signal is evident
Rainfall likely peaks during May–June, with shifting intensity into July
Expect episodic heavy rainfall, especially across eastern regions
Flood risk is elevated in key zones during active pulses
This is a pattern-based outlook, and updates closer to the season will refine regional detail.
📢 Kindly share the forecast. Due to time constraints, regional follow-up is prioritized where audience engagement is higher.
Statistical Modelling By:
@Statisticizer
The Principal Data Scientist – at Alhodhod Data Analysis Services.
Irbid, Jordan
#IndiaMonsoon #Rainfall #FloodRisk #ClimateAnalysis #Monsoon2026