・ベンガル湾でサイクロン「モカ」が発生 ・5月15日（月）にミャンマー上陸の恐れ
ベンガル湾で今年初のサイクロンが発生した。 南東ベンガル湾および隣接する南アンダマン海上空にあった低気圧性の循環が、9日（火）未明に明瞭な低気圧へと発達。その日の夕方には、ポートブレアの南西約510kmでさらに気圧が低下し、その後、強度を維持しながら10日（水）は北西に進み、11日（木）未明にサイクロン「モカ」となった。 その時点での中心はポートブレアの南西約510km、コックスバザール（バングラデシュ）の南南西約1210km、シットウェ（ミャンマー）の南南西約1120kmに位置。 サイクロン「モカ」の影響で、9日（火）から11日（木）までの間、アンダマン・ニコバル諸島で広く雨や雷雨が発生、10日（水）には一部で大雨となった。
Season’s 1st Cyclone formed over Bay of Bengal: Under the influence of a cyclonic circulation extending upto mid-tropospheric levels over Southeast Bay of Bengal & adjoining South Andaman Sea , a Low pressure area has formed over the same region on 8th May 2023; it has become a Well Marked Low pressure Area over the same region in the early morning hours of 9th May 2023; it has concentrated into a Depression in the evening of the same day and lay centered over Southeast Bay of Bengal at a distance of about 510 km southwest of Port Blair; moving west-northwestwards it intensified into a Deep Depression in the early morning hours of 10th May 2023 over Southeast Bay of Bengal and lay centered at a distance of about 540 km west-southwest of Port Blair; maintaining the same intensity, it moved north-northwestwards and lay over the same region, at a distance of about 510 km west-southwest of Port Blair, in the evening of 10th May 2023; moving west-northwestwards, it further intensified into a cyclonic storm “Mocha” pronounced as “Mokha” in the early morning hours of 11 th May 2023 over Southeast Bay of Bengal and lay centered at a distance of about 510 km west-southwest of Port Blair, 1210 km south-southwest of Cox’s Bazar (Bangladesh) and 1120 km south-southwest of Sittwe (Myanmar).; under its influence, fairly widespread to widespread rainfall/thunderstorm activity had occurred over Andaman & Nicobar islands on two days during 9-11 May with isolated heavy rainfall on 10th May 2023.
Government of India
Earth System Science Organization
Ministry of Earth Sciences
India Meteorological Department
Press: Dated: 11th May, 2023
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