User:Hurricanefan25/Cyclone Giovanna

Intense Tropical Cyclone Giovanna

Meteorological history
Cyclone Giovanna's origins were from the interaction of a monsoon trough and tropical wave associated with irregular convection with a clockwise circulation oriented east-west in the Mozambique Channel on 8 February. The system was forecasted to progress along the northwestern fringe of a subtropical ridge, and low-level inflow and sea-surface temperatures were conducive for development. Influenced by weak vertical wind shear, a low-level circulation center formed soon thereafter, but convection remained disorganized and wavering, though the circulation center swiftly coalesced. Near 2300 UTC, banding convection started to become established around the circulation center, and upper-level outflow was favorable for the formation of a tropical cyclone; the Joint Typhoon Warning Center (JTWC) subsequently issued a Tropical Cyclone Formation Alert, indicating a high chance of the system becoming a tropical cyclone.

The storm was designated as Tropical Depression Nine by RSMC La Réunion at 0600 UTC on 9 February, although its organization continued to waver. It sustained the path along the subtropical ridge, but was projected to slow down as a result of a fracture in an anticyclonic belt to the south. Six hours later, the JTWC also began releasing advisories on the storm, designating it 12S.
 * 2012-02-09 1200z RSMC technical bulletin
 * 2012-02-09 1200z/1500z JTWC warning
 * 2012-02-09 1800z
 * 2012-02-09 1800z RSMC technical bulletin
 * 2012-02-10 0000z RSMC technical bulletin
 * 2012-02-10 0000z/0300z JTWC warning
 * 2012-02-10 0600z RSMC technical bulletin
 * 2012-02-10 1200z RSMC technical bulletin
 * 2012-02-10 1200z/1500z JTWC warning
 * 2012-02-10 1800z RSMC technical bulletin
 * 2012-02-10 1800z/2100z JTWC warning
 * 2012-02-11 0000z RSMC technical bulletin
 * 2012-02-11 0000z/0300z JTWC warning
 * 2012-02-11 0600z RSMC technical bulletin
 * 2012-02-11 1200z RSMC technical bulletin
 * 2012-02-11 1200z/1500z JTWC warning
 * 2012-02-11 1800z RSMC technical bulletin
 * 2012-02-12 0000z RSMC technical bulletin
 * 2012-02-12 0000z/0300z JTWC warning
 * 2012-02-12 0600z RSMC technical bulletin
 * 2012-02-12 1200z RSMC technical bulletin
 * 2012-02-12 1200z/1500z JTWC warning
 * 2012-02-12 1800z RSMC technical bulletin
 * 2012-02-13 0000z RSMC technical bulletin
 * 2012-02-13 0000z/0300z JTWC warning
 * 2012-02-13 0600z RSMC technical bulletin