Doppler Weather Radar expansion is central to India's disaster preparedness. Examine the challenges in achieving complete radar coverage.

Doppler Weather Radars (DWRs) track rainfall intensity, wind velocity and storm movement in real time, enabling the 2–3 hour "nowcasts" that satellites cannot deliver. India's network grew from 14 units in 2014 to about 50, covering roughly 87% of the country's area [2] — yet closing the remaining stretch is the harder half of the task.

Why DWRs anchor preparedness

• They are the only tool that sees fast-forming hazards — thunderstorms, lightning, cloudbursts, urban flash floods — in time to act.
• Mission Mausam (₹2,000 crore, 2024–26) makes radar expansion its core deliverable, alongside upper-air and AI-based forecasting upgrades [1].

Challenges in achieving complete coverage

• Site handover bottleneck: a radar's timeline depends on the state transferring land. For the Balasore (Odisha) radar, the Ministry told Parliament that installation and commissioning would follow only after site handover [4] — a sequence spread across multiple agencies.
• Pace versus target: installations run at a few radars a year, while dozens more are planned nationwide [2]. The binding constraint is commissioning speed, not funding.
• Terrain and technology limits: hills and forests block radar beams, forcing costlier X-Band units — hence 10 dedicated X-Band DWRs for the North East and Himachal Pradesh [5].
• Uptime, not just count: "installed" is not "available 24×7"; breakdowns and part-day operation mean coverage on paper exceeds coverage in practice.
• Last-mile gap: the Ministry itself flags incomplete mobile and digital connectivity, weak local siren systems and low public awareness [3] — a warning unreceived is a warning wasted.

Complete radar coverage is therefore an institutional problem more than a technological one. Treating land handover as a disaster-preparedness duty, publishing radar uptime alongside radar count, and pairing every new radar with IMD's Panchayat-level forecasts on e-Gramswaraj and Mausamgram [3] would convert hardware into saved lives — realising Mission Mausam's promise of a weather-ready, climate-smart Bharat.