BMKG Warns La Nina Comes, Let’s Be Prepared

PUBLISHED,- The Meteorology, Climatology and Geophysics Agency (BMKG) conveyed an early warning to be aware of the arrival of a weak La Nina phenomenon which has the potential to increase rainfall in several parts of Indonesia towards the end of this year.

The La Nina phenomenon is a phenomenon of decreasing sea water temperature in the Pacific Ocean along the equator. The La Nina phenomenon causes rainfall in most parts of Indonesia to increase, and even has the potential to cause flooding.

The increase in rainfall is highly dependent on the intensity of the La Nina. However, due to Indonesia’s geographical position, which is known as a maritime continent, not all parts of Indonesia are affected by the La Nina phenomenon.

Based on monitoring of the latest developments of sea surface temperature data in the central and eastern Pacific Oceans, it shows that currently the anomaly value has passed the La Nina threshold, which is -0.61 in Basis I October 2021.

This condition has the potential to continue to develop and we must immediately prepare for the presence of La Nina 2021/2022 which is predicted to take place with weak – moderate intensity, at least until February 2022.

Based on the La Nina incident in 2020, the results of the BMKG study show that rainfall has increased in November-December-January, especially in the southern part of Sumatra, Java, Bali to NTT, southern Kalimantan and southern Sulawesi, so this year’s La Nina is predicted to be relatively the same and will have an impact on an increase in monthly rainfall ranging from 20 – 70% above normal.

Plt. Deputy for Climatology Urip Haryoko added, based on the results of observation of data from the BMKG network of rain observation stations throughout Indonesia until Dasarian I (the first ten days) October 2021, it shows the results of monitoring the development of the rainy season in 2021/2022 that 19.3% of the monsoon zone area Indonesia has entered the rainy season.

Some of Indonesia’s monsoon zones that have experienced the rainy season include the central part of Aceh, North Sumatra, most of Riau, West Sumatra, Jambi, most of South Sumatra, western Lampung, eastern Banten, southern West Java, western Central Java. , a small part of southern East Java, parts of Bali, North Kalimantan, most of East Kalimantan, southern and eastern South Kalimantan, eastern central Kalimantan, Taliabu Island, and southern Seram Island.

It should also be noted that this October for several areas on the islands of Java, Bali, Nusa Tenggara and South Sulawesi, are areas that are undergoing a transitional period or season transition from the dry season to the rainy season.

In this transitional season, it is necessary to watch out for extreme weather phenomena that often appear, such as heavy rains, hurricanes, and strong winds, although the periods are short, they often trigger hydrometeorological disasters. In addition to being vigilant in dealing with the rainy season, apart from areas that are subscribed to or have the potential for flooding and landslides, they are even more vigilant during the peak period of the rainy season, which is predicted to be dominant in January and February 2022.

Information from BMKG should open the eyes and minds to be prepared. Some of the preparedness efforts that we can do include:

  1. Understand the dangers around you
  2. Understand the local early warning system. Know evacuation routes and evacuation plans.
  3. Have the skills to evaluate situations quickly and take action initiatives to protect oneself.
  4. Have a disaster anticipation plan for the family and put the plan into practice with exercises
  5. Reducing the impact of hazards through mitigation exercises.
  6. Get involved by participating in training.

What are you waiting for, let’s practice. (LS)