Lightning Emerges as Karnataka's Deadliest Natural Hazard Amid Intensifying Pre-Monsoon Activity
Bengaluru: As pre-monsoon activity intensifies across Karnataka, lightning has solidified its position as the state's deadliest natural hazard, claiming more lives than many other disasters combined. With the peak lightning season setting in this May, fresh concerns are mounting over this persistent threat that disproportionately affects rural and forested areas.
Alarming Statistics and District-Level Impact
Government data reveals that despite early warning systems and awareness measures, lightning has consistently accounted for a shockingly high share of deaths caused by natural calamities in Karnataka. The fatalities range from 38% to 56% of all natural disaster deaths, highlighting the severity of this meteorological phenomenon.
According to the Annual Lightning Report 2023-24 released by the India Meteorological Department and Climate Resilient Observing Systems Promotion Council in December 2025, Karnataka ranked ninth among Indian states with high lightning mortality, topping all southern states in this grim statistic.
Even though cloud-to-ground lightning incidents declined by 21% between 2022-23 and 2023-24, this type of lightning continued to be the biggest killer in the state. An analysis of lightning incidents from 2020 to 2023 by the Karnataka State Natural Disaster Monitoring Centre identified Kalaburagi, Dakshina Kannada, and Belagavi as districts recording the highest number of lightning events.
However, decade-long casualty data from 2011 to 2023 placed Belagavi at the top with 86 deaths, followed closely by Kalaburagi with 80 fatalities and Vijayapura with 79 deaths. Several districts in Kalyana Karnataka and parts of Malnad have reported rising lightning deaths, with May accounting for the highest number of casualties in most regions.
Fluctuating Fatalities and Persistent Threat
A senior KSNDMC official explained that while fatalities have fluctuated over recent years, the threat remains persistent and concerning. "Even though the number of fatalities dropped sharply from 100 in 2022-23 to 61 in 2023-24, marking a significant decline of 39%, this gain was short-lived," the official stated.
"Deaths shot up again to 83 in 2024-25, before dipping marginally to 77 in 2025-26, accounting for 56% of deaths due to natural calamity — the highest percentage over the past four years."
Climate Variability and Meteorological Factors
Experts have increasingly linked the heightened lightning risk to climate variability and changing weather patterns. GS Srinivasa Reddy, former director of KSNDMC, emphasized the connection between rising temperatures and lightning activity.
"Rising mercury levels, erratic pre-monsoon activity, and localized severe thunderstorms are contributing to unpredictable lightning patterns. A few studies have even revealed that a mere one-degree rise in temperature could significantly increase lightning density," Reddy explained.
He further noted that "awareness and effective early warning protocol are the keys to achieving reduced fatalities" and pointed out that "despite fewer lightning strikes, Karnataka has recorded increased fatalities, suggesting exposure, behavior, and preparedness often matter as much as meteorological intensity."
Vulnerable Populations and Temporal Patterns
The analysis found that rural and forested areas remain most vulnerable to lightning strikes due to the presence of tall trees, waterbodies, and high outdoor exposure. Most victims are people working in agricultural fields, highlighting the occupational hazard aspect of this natural disaster.
The IMD report noted that 98% of lightning incidents occurred in the second half of the day, with most victims being men exposed in open areas or walking unprotected in the rain. This temporal pattern underscores the importance of timing in preventive measures and warnings.
Technological Interventions and Preparedness Measures
A senior revenue department official from the disaster control division reported that the Lightning Monitoring and Early Warning System has significantly strengthened preparedness across the state. "Besides, the dedicated SIDILU app also provides location-specific lightning strike alerts 30 to 45 minutes before the lightning strike," the official added, highlighting technological advancements in disaster management.
Casualty Record Over Recent Years
The following data from Karnataka State Natural Disaster Monitoring Centre illustrates the persistent threat of lightning:
- 2025-26: 117 total natural calamity deaths, 66 lightning deaths (56.4%)
- 2024-25: 193 total natural calamity deaths, 83 lightning deaths (43%)
- 2023-24: 120 total natural calamity deaths, 61 lightning deaths (50.8%)
- 2022-23: 258 total natural calamity deaths, 100 lightning deaths (38.7%)
As Karnataka enters another peak lightning season, the data underscores the critical need for continued vigilance, improved early warning systems, and enhanced public awareness to mitigate this deadly natural hazard that disproportionately affects the state's rural populations and outdoor workers.
