Risk Analysis: Tropical Storm Ada (Nokaen) in the Philippines

Tropical Storm Ada (Nokaen) in the Philippines

What is Risk Analysis in the Context of Natural Disasters Events

Natural disaster risk analysis evaluates hazards arising from weather and geophysical events that threaten lives, infrastructure and economic activity. In this case, the risk stems from a tropical storm producing intense rainfall, flooding, landslides and coastal hazards. Such events are recurrent in the Philippines, particularly during the northeast monsoon season, with historical storms causing displacement, infrastructure damage and prolonged service disruptions.

Executive Summary

  • Date of Event: 16 January
  • Location: Metro Davao, Caraga, parts of Mindanao, eastern Visayas, Luzon and Batanes, Philippines
  • Risk Category: Natural Disasters
  • Severity Score: 3/ 5
  • Confidence Level: 75 %

Tropical Storm Ada (Nokaen) is generating heavy rainfall and gusty winds across eastern Mindanao and adjacent regions. Peak impacts are expected within 24–72 hours, with residual flooding risks extending up to seven days. Flash floods, landslides, power outages and transport disruptions are likely in vulnerable provinces.

Current Updates

As of 16 January, PAGASA reports that Tropical Storm Ada is producing widespread heavy to intense rainfall across Caraga, Northern and Eastern Mindanao and parts of the eastern Visayas. Rainfall accumulations of 100–200 mm are forecast in portions of Surigao and Agusan provinces, with tropical cyclone wind signals raised in affected areas. Local authorities have suspended classes and work in several provinces and advised coastal and upland communities to prepare for evacuations.

Known Hotspots and Sensitive Areas

High Impact: Caraga Region, including Surigao del Sur, Surigao del Norte, Agusan del Sur and Dinagat Islands, where saturated soils heighten flood and landslide risk.

Medium Impact: Davao Oriental, Bukidnon, Misamis Occidental, Camiguin and Camarines Sur, with exposure to heavy rainfall, wind damage and localized flooding.

Low Impact: Batanes and northern Luzon areas, where impacts are expected to be limited to intermittent rain and gusty conditions.

These regions experience recurrent storm impacts during the monsoon season, increasing cumulative vulnerability.

Impact on Transportation and Services

Road transport is likely to be disrupted by flooding and landslides along key corridors such as the Butuan–Surigao highway. Inter-island ferry services face cancellations due to rough seas, while smaller provincial airports may experience temporary suspensions from poor visibility and winds. Power and water utilities may be interrupted, affecting business operations, communications and access to essential services in affected municipalities.

Recommended Actions

  • Authorities and organisations should activate incident response and business continuity plans, prioritising personnel safety and clear evacuation protocols.
  • Non-essential travel and field operations should be suspended in high-risk zones.
  • Facilities should be secured against flooding and wind damage, while supply chains should shift to contingency routes and alternative logistics providers.
  • Continuous coordination with PAGASA, local disaster offices and utility providers is essential.

Multidimensional Impact

The storm may strain regional relief resources and delay recovery in areas already affected by prior flooding. Extended disruptions could increase economic losses for agriculture, logistics and small enterprises in Mindanao and Caraga.

Emergency Contacts

  • National Emergency Hotline: 911
  • NDRRMC Operations Centre: monitoring-dashboard.ndrrmc.gov.ph/
  • PAGASA: pagasa.dost.gov.ph/

Final Thoughts

Tropical Storm Ada presents a moderate but evolving risk with potential for escalation if rainfall intensifies or stalls over vulnerable catchments. Continuous monitoring, early warning dissemination and preparedness measures are critical. Businesses and authorities should leverage real-time intelligence and preparedness tools such as MitKat’s Datasurfr to anticipate impacts and support timely decision-making.

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