ONSET OF LA NIÑA
15 October 2021
PRESS STATEMENT
DOST-PAGASA S & T Media Service
Quezon City
ONSET OF LA NIÑA 2021/ LA NIÑA ADVISORY # 1
Recent oceanic and atmospheric conditions indicate La Niña have developed in the tropical Pacific. Since July 2021, the sea surface temperatures in the central and equatorial Pacific started to cool and further strengthened in September reaching La Niña threshold. Based on the latest forecast, La Nina is likely to persist until the first quarter of 2022.
La Niña is usually associated with above normal rainfall conditions across most areas of the country during the last quarter of the year and early months of the following year.
Rainfall forecast from October 2021 to March 2022 suggests that most parts of the country will likely receive near to above normal rainfall conditions. In addition, four (4) to six (6) tropical cyclones (TCs), most of which are landfalling TCs, are expected to enter/develop in the Philippine Area of Responsibility (PAR). These TCs may further enhance the Northeast Monsoon and could trigger floods, flashfloods and rain-induced landslides over susceptible areas, particularly in the eastern sections of the country which normally receive greater amount of rainfall at this time of the year. Adverse impacts are likely over the vulnerable areas and sectors of the country.
PAGASA will continue to closely monitor the ongoing La Niña and regular updates/advisories shall be issued as appropriate. Meanwhile, all concerned government agencies and the public are advised to take precautionary measures to mitigate the potential impacts of this event.
Original Signed:
VICENTE B. MALANO, Ph.D.
Administrator
More Press Release
23 March 2020
S&T PRESS RELEASE
23 March 2020
Qu...
20 March 2020
The gradual shift of wind direction from northeasterly to easterly over most parts of the country due to the establishment of the High Pressure Area (HPA) over ...
Read more20 December 2019
S&T PRESS RELEASE
29 November 2019
There are posts currently circulating online being shared in various social net...
19 September 2019
There are posts related to a “Haze Bulletin” allegedly issued by PAGASA that are currently
circulating online and being shared in variou...
09 August 2019
The weak El Niño which started since the last quarter of 2018 had ended. The warmer than average sea surface temperatures (SSTs) in the tropical Pacific Ocean h...
Read more