Notified Natural Calamities

Heatwaves and Lightning have been included among the Notified Natural Calamities in India. Read here to learn more.

India has taken an important step towards strengthening its disaster-management framework by officially including heatwaves and lightning among the notified natural calamities eligible for assistance under the operational guidelines of the State Disaster Response Fund (SDRF) and National Disaster Response Fund (NDRF) for 2026-2031.

The decision is significant because heatwaves and lightning have increasingly emerged as major causes of deaths, livelihood disruption, agricultural losses and public-health emergencies.

Their formal recognition enables governments to move beyond treating them merely as seasonal weather events and toward a more structured framework of preparedness, response, relief and mitigation.

What are Notified Natural Calamities?

Under India’s disaster-management framework, certain hazards are formally recognised as disasters for the purpose of providing financial assistance and relief.

With the inclusion of heatwaves and lightning, the notified categories increase from 12 to 14.

The existing categories include:

• Cyclones
• Droughts
• Earthquakes
• Fires
• Floods
• Tsunamis
• Hailstorms
• Landslides
• Avalanches
• Cloudbursts
• Pest attacks
• Cold waves

The addition of heatwaves and lightning reflects the changing nature of India’s disaster-risk profile.

Why are Heatwaves and Lightning Important Disasters for India?

Lightning: A Major Cause of Disaster Mortality

Lightning is among India’s most lethal extreme-weather hazards.

The supplied data indicates that lightning causes approximately 2,000–2,500 deaths annually, accounting for more than 35% of natural-disaster deaths in the country.

Its impact is particularly severe in rural India.

Approximately:

• 96% of lightning deaths occur in rural areas.
• Agricultural workers and tribal communities are particularly vulnerable.
• Many victims are exposed while working in open agricultural fields during the monsoon.

Thus, lightning is not simply a meteorological phenomenon; it is also a major livelihood and occupational safety issue.

Heatwaves and Public Health

Heatwaves are increasingly becoming a major public-health emergency.

During the peak summer period of March-July 2026, the supplied data records more than 4,853 severe heatstroke cases, along with confirmed heatstroke fatalities across affected states.

The most vulnerable groups include:

• Outdoor workers
• Agricultural labourers
• Construction workers
• Elderly people
• Children
• People living in poorly ventilated housing
• Individuals without access to cooling facilities

Heatwaves can cause:

• Heat exhaustion
• Heatstroke
• Dehydration
• Cardiovascular stress
• Kidney-related complications
• Increased mortality among vulnerable populations

Major Vulnerable Regions

1. East India and Chota Nagpur Plateau- Lightning Belt

Important high-risk states include:

• Odisha
• Jharkhand
• Bihar
• West Bengal

The region experiences intense thunderstorms because of the interaction between Bay of Bengal moisture and dry continental air.

This creates powerful convective systems capable of producing frequent lightning.

2. North-Western and Central Plains- Heatwave Core

Important regions include:

• Rajasthan
• Punjab
• Haryana
• Delhi
• Uttar Pradesh
• Madhya Pradesh

These areas frequently experience extreme summer temperatures, with temperatures sometimes exceeding 45-48°C.

3. Western Peninsular and Deccan Region

High-risk areas include:

• Vidarbha
• Marathwada
• Telangana
• Northern Karnataka

These regions experience both:

• Severe pre-monsoon heat
• Convective thunderstorms and lightning

This creates a combination of heat and storm-related risks.

4. North-Eastern and Himalayan Regions

• States such as Assam, Meghalaya, Sikkim, and Arunachal Pradesh experience considerable lightning activity because of orographic uplift and monsoon-related convection.

Disaster-Financing Framework

The notification is particularly important because of its implications for disaster financing.

SDRF

The State Disaster Response Fund is the primary mechanism through which states respond to notified disasters.

The Centre and states contribute to the fund.

According to the framework outlined in the supplied material:

• General States: 75:25 Centre-State contribution
• North-Eastern and Himalayan States: 90:10

NDRF

The National Disaster Response Fund provides additional central assistance when a disaster is severe, and the state’s available resources are inadequate.

Thus, notification of heatwaves and lightning creates a stronger pathway for financial assistance when these hazards cause substantial damage.

The “Local Disaster” Problem

• Before their formal recognition, states could address heatwaves and lightning through existing disaster mechanisms, but the financial flexibility available under the local-disaster provision was limited.
• The supplied material highlights the so-called 10% SDRF constraint, under which states could use only a limited portion of SDRF resources for locally occurring disasters not specifically included in the notified list.
• For widespread heatwaves, this could be inadequate.
• Formal notification, therefore, represents a shift from limited local emergency expenditure to structured disaster-response financing.

From Relief to Mitigation

Perhaps the most important consequence is that the policy can facilitate investment not only in emergency relief but also in long-term risk reduction.

Potential interventions include:

Heatwave mitigation

• Cool roofs
• Urban shade infrastructure
• Drinking-water facilities
• Cooling centres
• Heat-resilient buildings
• Heat-health warning systems

Lightning mitigation

• Lightning protection systems
• Early-warning systems
• Public alert mechanisms
• Safe shelters
• Community awareness programmes
• Lightning-risk mapping

The objective should therefore be to move from “respond after deaths occur” to “prevent deaths before the event.”

Heat Action Plans

The recognition can strengthen state and district-level Heat Action Plans (HAPs).

A comprehensive HAP can include:

1. Early warning
2. Public communication
3. Health-system preparedness
4. Identification of vulnerable populations
5. Drinking-water arrangements
6. Cooling centres
7. Modification of outdoor working hours
8. Emergency medical response
9. Post-event surveillance

Digital warning systems such as SACHET can further improve last-mile communication.

Worker Protection

The recognition of heatwaves as disasters is particularly important for India’s informal workforce.

Millions of Indians work outdoors in:

• Agriculture
• Construction
• Road building
• Mining
• Street vending
• Delivery services
• Transport

Extreme heat can cause workers to lose income even when they do not suffer fatal heatstroke.

Therefore, disaster planning should incorporate:

• Mandatory rest breaks
• Water and electrolyte availability
• Modified working hours
• Heat shelters
• Occupational heat-risk protocols
• Compensation mechanisms

This is especially important because informal workers generally have limited access to formal occupational safety and insurance systems.

Climate Change Dimension

The increasing importance of heatwaves and lightning must also be viewed through the lens of climate change and weather variability.

Rising temperatures increase the probability of:

• More frequent heatwaves
• Longer heatwave duration
• Higher nighttime temperatures
• Greater cumulative heat stress

At the same time, atmospheric instability and changing moisture patterns can contribute to intense convective storms and lightning.

Thus, India’s disaster-management system must increasingly account for compound and cascading climate risks rather than treating hazards as isolated events.

Significance of the Decision

The notification has several major implications.

1. Better Access to Disaster Funds: States can access formal disaster-response mechanisms for heatwave and lightning emergencies.

2. Stronger Institutional Recognition: Heatwaves and lightning become recognised as major disaster risks rather than merely seasonal weather events.

3. Better Public-Health Integration: Disaster management can be linked more closely with heatstroke surveillance and health preparedness.

4. Improved Early Warning: Greater institutional attention can strengthen:

• Weather forecasting
• Lightning detection
• SMS alerts
• Community warning systems

5. Long-Term Climate Adaptation: Resources can increasingly be directed toward preventive infrastructure rather than only post-disaster relief.

6. Protection of Vulnerable Communities: Rural populations, agricultural workers, tribal communities and outdoor labourers can receive greater attention in disaster planning.

Challenges Ahead

Notification alone will not automatically reduce mortality as several challenges remain.

• Last-Mile Warning: An alert is useful only if it reaches people in vulnerable locations and is understood quickly.
• Behavioural Change: People working in agricultural fields may continue working despite lightning warnings because of livelihood pressures.
• Urban Heat: Cities require specialised interventions because the urban heat-island effect can amplify extreme temperatures.
• Data Quality: Accurate recording of heat-related and lightning-related deaths is necessary for effective planning and compensation.
• Inter-State Capacity Differences: Poorer states and districts may lack the infrastructure required for effective disaster preparedness.

Way Forward

India should adopt a comprehensive Heatwave-Lightning Risk Management Strategy based on five pillars:

1. Early Warning

• Expand high-resolution forecasting and location-specific alerts.

2. Last-Mile Communication

• SMS
• Mobile applications
• Community volunteers
• Panchayats
• Local radio
• Schools
• Agricultural networks

3. Climate-Resilient Infrastructure

• Cool roofs
• Urban forests
• Shaded public spaces
• Cooling centres
• Lightning-safe shelters

4. Occupational Safety

• Introduce enforceable heat-safety standards for outdoor workers, including work-rest cycles and hydration requirements.

5. Community-Based Disaster Management

• Train local communities to recognise lightning and heatwave risks and respond before emergency services arrive.

Conclusion

The inclusion of heatwaves and lightning as notified natural calamities represents an important evolution in India’s disaster-management architecture. These hazards have traditionally been treated primarily as meteorological events, despite causing thousands of deaths and substantial economic and livelihood losses.

Their formal recognition can improve access to SDRF and NDRF resources, strengthen early-warning systems, support Heat Action Plans, improve public-health preparedness and encourage investments in preventive infrastructure.

However, notification is only the first step. The real measure of success will be whether the policy translates into fewer deaths, better protection for outdoor workers, faster warnings, stronger local preparedness and climate-resilient infrastructure.

India therefore, needs to move from a relief-centric approach to a prevention-and-resilience model, where heatwaves and lightning are anticipated, mapped, communicated and managed before they become large-scale disasters.