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La Niņa to Send Heavy Rains to Bali

Bali Weather Forecasters Warn of Heavy Rains and Potential Landslides Ahead.

(10/2/2010) The Denpasar office of the national Meteorology, Climatology and Geophysics Agency (BMKG) has warned Bali residents to be on watch for unusual and potential La Niņa" weather phenomena that will peak in the November-December period. Bali weather forecasters warn of rain fall coming down at an intensity of between 50-100 millimeters per hour and the potential consequences of these downpours.

Beritabali.com quoted the Bali chief of data and information at BKMG, Endro Tjahjono, saying that the effects of La Niņa have already begun to be experienced in Bali via periods of intense rainfall lasting more than 2 hours.

La Niņa is caused by unusually cold ocean temperatures in the Pacific equator region, while its counterpart El Niņo results from warmer than normal ocean temperatures.

Endro warned that the most threatening La Niņa situation occurs when rain falls at an intensity exceeding 100 millimeters per hour for periods of more than two hours. Typically, this condition quite literally "precipitates" flooding and landslides.

Endro Thahjono explained that areas with land slopes exceeding 35 degrees and devoid of tree cover are most susceptible to devastating land slides. Flooding occurs in low-lying areas.

Tjahjono also said that the La Niņa returns in patterns of 2 and 8 years, predicting La Niņa will return to Bali in April 2011.