DENPASAR - The Meteorology, Climatology and Geophysics Agency (BMKG) revealed that as many as 65,053 lightning strikes occurred on December 8-14, 2025 or during the pre- and current periods of the emergence of Tropical Cyclone 93S in the southern Indian Ocean NTB.
"The most lightning strikes in Tabanan Regency during the period," said Acting Head of the BMKG Denpasar I Geophysics Station Ketut Sudiarta in Denpasar, Bali, Monday, December 15.
Previously, the BMKG asked the public to be aware of extreme weather in Bali due to the emergence of Tropical Cyclone 93S, which is expected to occur on December 11-18, 2025.
His party detailed 56,547 lightning strikes from the cloud to the ground (Cloud to Ground/CG) and the rest of 8,506 lightning strikes in the cloud (IntraCloud/IC).
BMKG revealed that lightning from the clouds to the ground is the most dangerous type of lightning because it can cause building damage, fires, and even death.
Of the 56,547 CG lightning, lightning from positive ground clouds (CG+) or lightning with positive charge with a single strike feature of 20,593 and lightning from negative ground clouds (CG-) or lightning with negative charge with a branched strike feature of 35,954 lightning strikes.
The lightning strikes occurred most in Tabanan Regency (19,112), Badung (5,753), Buleleng (9,138), Gianyar (2,919), Klungkung (1,993), Denpasar City (2,213), Jembrana (6,159), Bangli (5,383), and Karangasem (3,879).
The many lightning strikes that occurred in Tabanan Regency, according to him, indicate the high potential for the formation of convective clouds or rain clouds in the area.
Cumulonimbus clouds (CB) are the clouds that most often produce lightning strikes.
"In terms of regional density, he said, lightning activity in Bali is generally low, namely less than eight lightning strikes per square kilometer to the high category, namely more than 16 lightning strikes per square kilometer.
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