CAGAYAN DE ORO CITY, Philippines — Residents across Mindanao are advised to remain alert for possible flooding and landslides as the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) reported that easterlies continue to affect the eastern section of the island, bringing widespread rainshowers and thunderstorms on Saturday, June 13.
According to PAGASA’s Mindanao Regional Services Division (MINPRSD), the weather disturbance is expected to persist from 5:00 a.m. Saturday until 5:00 a.m. Sunday, with the Davao Region facing the most significant impact.
Forecasters said the Davao Region, including Metro Davao, Davao del Norte, Davao del Sur, Davao Oriental, Davao de Oro, and Davao Occidental, will experience cloudy skies accompanied by scattered rainshowers and thunderstorms throughout the forecast period.
Authorities warned that moderate to occasionally heavy rainfall could trigger flash floods and landslides, particularly in mountainous and low-lying communities.
“Possible flash floods or landslides due to moderate to at times heavy rains,” PAGASA stated in its advisory.
Davao Region Under Close Watch
Temperatures across the Davao Region are expected to range from 24°C to 34°C, with Metro Davao forecast to reach a high of 34°C despite the prevailing cloudy conditions.
The combination of high humidity, intermittent heavy rains, and thunderstorms may result in sudden weather changes throughout the day and night.
Local disaster risk reduction offices have been urged to closely monitor river systems and landslide-prone areas, especially in upland communities where saturated soil conditions could increase the risk of slope failures.
Caraga Region to Experience Isolated Rainshowers
Meanwhile, the Caraga Region will experience partly cloudy to cloudy skies with isolated rainshowers and thunderstorms due to the influence of easterlies.
Areas covered include Agusan del Norte, Agusan del Sur, Surigao del Norte, Surigao del Sur, and Dinagat Islands.
While rainfall in Caraga is expected to be less widespread than in the Davao Region, PAGASA warned that severe thunderstorms could still trigger localized flooding and landslides.
Agusan del Norte is expected to record one of the highest temperatures in Mindanao at 35°C during the daytime.
Localized Thunderstorms to Affect Rest of Mindanao
The rest of Mindanao, including Northern Mindanao, Zamboanga Peninsula, SOCCSKSARGEN, and the Bangsamoro Autonomous Region in Muslim Mindanao (BARMM), will generally experience partly cloudy to cloudy skies with isolated rainshowers or thunderstorms caused by localized thunderstorm activity.
Affected provinces include:
- Bukidnon
- Camiguin
- Lanao del Norte
- Misamis Occidental
- Misamis Oriental
- Zamboanga del Norte
- Zamboanga del Sur
- Zamboanga Sibugay
- North Cotabato
- South Cotabato
- Sultan Kudarat
- Sarangani
- Basilan
- Sulu
- Tawi-Tawi
- Lanao del Sur
- Maguindanao del Norte
- Maguindanao del Sur
- Cotabato City
PAGASA cautioned that although weather conditions may appear fair during parts of the day, isolated thunderstorms can rapidly develop and produce intense rainfall, lightning, and strong gusty winds.
Temperature Outlook
Several areas are expected to experience relatively hot conditions despite the forecast rain:
- Agusan del Norte: up to 35°C
- Agusan del Sur: up to 34°C
- Surigao del Norte: up to 34°C
- Surigao del Sur: up to 34°C
- Cotabato City: up to 34°C
- Metro Davao: up to 34°C
- North Cotabato and Sultan Kudarat: up to 33°C
- Bukidnon: up to 33°C
The coolest temperatures are forecast in the highland areas of Bukidnon, where nighttime temperatures could dip to 19°C.
Coastal Conditions Remain Favorable
PAGASA reported that winds across Mindanao will generally be light to moderate, blowing from the southwest to south.
Sea conditions are expected to remain slight to moderate, with wave heights ranging from 0.6 to 1.2 meters.
The forecast suggests generally safe conditions for small fishing vessels and sea travel, although mariners are advised to exercise caution when thunderstorms develop, as sudden squalls and rougher seas may occur.
Public Advisory
PAGASA urged residents, local government units, disaster responders, farmers, fisherfolk, and motorists to remain vigilant, particularly in areas susceptible to flooding and landslides.
Communities are encouraged to monitor official weather bulletins and heed warnings issued by local authorities as weather conditions can change rapidly due to thunderstorms and the continuing influence of easterlies over eastern Mindanao.
The weather bureau continues to closely monitor conditions and advises the public to stay informed through official PAGASA updates and local disaster management offices.