Severe Tropical Cyclone Yasi was first identified on 26 January 2011 as a tropical disturbance, given the identifier "09F" by the Regional Specialized Meteorological Center in Nadi, Fiji (Fiji Meteorological Service; FMS), located about 330 km (205 mi) south-southwest of Tuvalu. Situated over a region of high sea surface temperatures and low to moderate wind shear, gradual intensification was expected as the system moved southwestwards.[6] Little development took place over the following two days,[7] though the disturbance was classified as a tropical depression on 27 January.[8] By 28 January, the depression was characterised as a poorly developed low with a broad area of rotating, flaring convection.[9] Considerable development took place the following day, prompting the Joint Typhoon Warning Center (JTWC) to issue a Tropical Cyclone Formation Alert. The storm's low-level circulation centre became increasingly defined and convective banding features were apparent along the northern periphery of the depression.
Sightline Payments
eurosportbet
Subject: Meteorological history 
Thu Feb 03, 2011 6:50 pm