Hurricane and Tropical Cyclones
Tropical Weather Discussion
000abio10 pgtw 241800 msgid/genadmin/joint typhoon wrncen Pearl Harbor hi// subj/significant tropical weather advisory for the Indian Ocean/241800z-251800zapr2017// rmks/ 1. North Indian Ocean area (Malay Peninsula west to coast of Africa): a. Tropical cyclone summary: none. B. Tropical disturbance summary: none. 2. South Indian Ocean area (135e west to coast of Africa): a. Tropical cyclone summary: none. B. Tropical disturbance summary: (1) the area of convection (invest 97p) previously located near 8.7s 133.3e, is now located near 9.3s 134.9e, approximately 300 nm northeast of Darwin, Australia. Animated enhanced infrared satellite imagery shows flaring convection associated with an elongated low level circulation. A 241258z AMSU-b metop-b 89 ghz image depicts fragmented convection located mostly around the perimeter of the circulation. The disturbance is located in an area of good overall outflow, low vertical wind shear (5-10 knots), and warm sea surface temperatures (29-30 celsius). Global models indicate slow intensification of the disturbance as it tracks southwestward over the next several days. Maximum sustained surface winds are estimated at 15 to 20 knots. Minimum sea level pressure is estimated to be near 1007 mb. The potential for the development of a significant tropical cyclone within the next 24 hours remains low. (2) no other suspect areas.// Nnnn
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