Waves of Rain: Odisha Must Prepare for Repeated Downpours, Not Isolated Anomalies

Source: Original editorial ↗ The Hindu

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The Lift Line

“Odisha needs to pivot from anticipating isolated seasonal anomalies to preparing for repeated intense downpours.”

Why This Editorial Matters for Your Exam

This Hindu editorial explains a monsoon anomaly through physical geography (weather systems, soil saturation, deltaic drainage) and turns it into a disaster-management argument. It is a model for GS1 answers on monsoon variability and GS3 answers on moving from response to resilience.

GS Paper 1: Important geophysical phenomena; the Indian monsoon; changes in critical geographical features. GS Paper 3: Disaster and disaster management; climate change.

Background and Context

The 2026 season in Odisha, as the editorial reports it.

Measure	Figure
Rainfall, June to 25 September	1,453 mm, 29 per cent above normal
June	A 47 per cent deficit
Weather systems over the Bay of Bengal	11; the latest made landfall near Kalingapatnam (Andhra Pradesh) on 23 September
People affected (State estimates, background)	5.2 lakh by 30 July; another 13.5 lakh by 27 August
Locations with over 100 mm in 24 hours	At least 60
Rivers to watch	Baitarani, Budhabalanga, Jalaka, Rushikulya

Why the Bay of Bengal matters. During the monsoon, low-pressure systems (lows, depressions and deep depressions) form over the north Bay of Bengal and move west-north-west along the monsoon trough, bringing much of central and eastern India’s rain. Odisha’s coast lies in their path.

IMD rainfall categories (24 hours).

Category	Rainfall
Heavy	64.5 to 115.5 mm
Very heavy	115.6 to 204.4 mm
Extremely heavy	204.5 mm or more

Odisha’s disaster architecture. After the super cyclone of October 1999, Odisha set up the Orissa State Disaster Mitigation Authority in 1999, the first such State body, years before the Disaster Management Act, 2005. Its zero-casualty approach of mass evacuation was credited in cyclones Phailin (2013) and Fani (2019).

The Analysis

1. Many systems, little recovery time. The season’s rain came not from one big event but from a sequence. Each system “repeatedly delivered rain without giving locals time to recover”.

2. Saturation turns rain into runoff. When earlier spells have saturated the soil and filled local storage, new rain runs off almost at once, swelling rivers and threatening Bhadrak and Jajpur downstream.

3. Terrain sets two different risks. The south is highland, where the danger is slope failure. The coast is a depositional plain of several deltas with a low gradient, through which water drains slowly to the sea.

4. Evacuation has outpaced engineering. The editorial’s key line. Odisha is known for its protocols, but repeated waterlogging in Berhampur and broken highways and railway links point to weak drainage, which the CAG flagged in 2024.

5. The trend line. A May 2026 study by the Odisha University of Agriculture and Technology (1901-2020 data) found that the heaviest one-day and five-day rainfall bursts are becoming more common even as the number of heavy-rain days falls. Climate change is also linked to longer monsoon withdrawal and intense rain events.

Data and Institutions Vault

Prelims-grade facts:

Odisha 2026 (as reported):

• 1,453 mm from June to 25 September, 29 per cent excess, after a 47 per cent deficit in June.
• 11 Bay of Bengal systems; landfall near Kalingapatnam on 23 September.

Institutions:

• OSDMA: set up in 1999 after the super cyclone, as the Orissa State Disaster Mitigation Authority; the first State disaster body.
• Disaster Management Act, 2005: NDMA chaired by the Prime Minister; SDMA by the Chief Minister.
• NDMA guidelines on urban flooding: 2010.

Monsoon basics:

• IMD’s long period average (LPA) for June-September: 87 cm (1971-2020).
• Extremely heavy rain: 204.5 mm or more in 24 hours.

Prelims, the traps:

• Kalingapatnam is in Andhra Pradesh (Srikakulam district), not Odisha.
• Odisha’s rivers Budhabalanga and Jalaka drain the north-east (Mayurbhanj, Balasore); Rushikulya is in the south (Ganjam).

⚠️ Watch the trap: a monsoon depression is a tropical low-pressure system; do not confuse it with a western disturbance, which is extra-tropical.

The Debate

For the editorial’s view. The pattern of repeated intense bursts, backed by century-long data, justifies re-engineering drainage and infrastructure rather than relying on response alone.

The complications. One season does not make a trend on its own; rebuilding drainage across towns is costly; and much flooding stems from encroachment on channels, wetlands and floodplains, a governance problem more than an engineering one.

The balanced verdict. Combine engineering (drains sized for higher intensities, pre-monsoon desilting, delta drainage) with land-use enforcement, landslide zonation in the south, impact-based forecasting and quick compensation, funded through the disaster mitigation funds.

How to Think About This

Separate the hazard from the vulnerability. The rain is the hazard; saturated soil, flat deltas, blocked drains and settlements on floodplains are the vulnerability. Answers score when they show which part policy can change.

Diagram-in-Words

Takeaway Box

• Anomaly: June deficit of 47 per cent turned into a 29 per cent surplus.
• Cause: 11 Bay of Bengal systems in quick succession.
• Mechanism: saturated soil; highland landslides; slow-draining deltas.
• Gap: evacuation strong, drainage weak (CAG, 2024).
• Shift: from isolated anomalies to repeated intense downpours.

Sources: The Hindu, India Meteorological Department, Odisha State Disaster Management Authority

Source: Waves of Rain: Odisha Must Prepare for Repeated Downpours, Not Isolated Anomalies — Ujiyari.com | Free UPSC & State PCS Editorial Analysis

Key Arguments at a Glance

The Hindu argues that Odisha’s intense 2026 monsoon, driven by an unusually large number of Bay of Bengal weather systems arriving before the land could recover, shows that the State’s strong evacuation protocols have outpaced its civic engineering, and that it must prepare for repeated intense downpours rather than isolated anomalies.

✓ Supporting

• Odisha recorded 1,453 mm of rain between June and 25 September, 29 per cent above normal, after ending June with a 47 per cent deficit; 11 systems formed over the Bay of Bengal, the latest making landfall near Kalingapatnam on 23 September.
• By the State’s estimates, 5.2 lakh people were affected by 30 July and another 13.5 lakh by 27 August; at least 60 locations received more than 100 mm in 24 hours.
• Saturated soil turns each new spell quickly into runoff; the south’s highlands face slope failure, and the flat deltaic coast drains slowly to the sea.
• The CAG had flagged drain design and maintenance deficiencies in 2024, and urban waterlogging in Berhampur and disruption of highways and railways persist.
• A May study by the Odisha University of Agriculture and Technology, on data from 1901-2020, found one-day and five-day rainfall bursts becoming more common even as heavy-rain days decline.

⚠ Counter

A single season’s anomaly does not by itself establish a trend, and the State has limited fiscal room to rebuild drainage across towns; much of the damage also reflects encroachment on floodplains and drainage channels that engineering alone cannot fix.

→ Way Forward

Redesign urban drainage for higher-intensity rain, maintain channels before each monsoon, map landslide-prone slopes in the south, plan for delta drainage, and combine Odisha’s evacuation strength with investment in socio-economic and infrastructural resilience.