Kathmandu, October 29
The Civil Aviation Authority of Nepal (CAAN) has urged aviation service providers and airport operators to adopt precautionary measures to minimise potential risks from powerful Cyclone Arnab, which is forecast to reach the coastal areas around Visakhapatnam and Andhra Pradesh in India.
CAAN issued a safety circular on October 28, asking airlines, airport operators, aviation service providers and other concerned stakeholders to remain alert.
According to the circular, the weather system could bring moderate to heavy rainfall, thunderstorms accompanied by strong winds, severe gusts and snowfall in Himalayan and high-hill areas of Nepal.
The Department of Hydrology and Meteorology’s Weather Forecasting Division has warned that Koshi, Madhesh, Bagmati, Gandaki and Lumbini provinces could be particularly affected, with some areas of Karnali and Sudurpaschim provinces also experiencing impacts.
CAAN has warned that heavy rainfall, strong winds and reduced visibility from Thursday to Saturday could disrupt flights, take-offs and landings, airport operations and runway conditions.
The authority has directed air traffic management units to prepare appropriate plans for adverse weather, coordinate with other service units and arrange rerouting, holding patterns or other necessary measures when conditions deteriorate beyond operational limits.
Radar controllers have also been instructed to maintain appropriate separation between aircraft during adverse weather. Information on sudden changes in wind speed and direction, known as wind shear, severe atmospheric turbulence and thunderstorms must be promptly communicated to arriving and departing aircraft.
CAAN has directed airport operators to inspect runways regularly for water accumulation and slippery surfaces that could affect aircraft braking. Airport operations, civil engineering and airside departments must coordinate continuously, remove debris carried by strong winds and ensure that runway lights and other essential systems remain operational.
Airlines and flight crews have been urged to conduct thorough weather assessments before departure, prepare for potential delays, holding and diversions, maintain sufficient fuel reserves and follow established safety procedures.
The circular also directs concerned agencies to keep essential air navigation, air traffic management, backup power and communication systems ready for operation and immediately report any serious risks, disruptions or safety incidents through designated channels.
