The Watchers - 1/28/13, By Chillymanjaro
New tropical system is forming near La Reunion Islands. According to latest JTWC report, Tropical cyclone 13S was located approximately 590 nm northeast of La Reunion, and is moving west-southwestward at 11 knots. Animated multispectral satellite imagery reveals a partially exposed low-level circulation center with flaring deep convection sheared to the north. Tc 13S remains in a marginal environment with moderate vertical wind shear which is being offset by good poleward outflow into an upper-level low.
TC 13S captured by MODIS satellite on January 27, 2013 (Credit: LANCE/WorldView)
TC 13s is forecast to track westward under the steering influence of the deep subtropical ridge through the next three days, but will then turn poleward along the western periphery of subtropical ridge, which is forecast to re-orient as a deep midlatitude trough propagates toward Madagascar. TC 13s is expected to intensify slowly through the next 48 hours due to the marginal conditions but should intensify at a faster rate after that period as vertical wind shear decreases and poleward outflow increases into the midlatitude westerlies.
To read the rest of this story, visit The Watchers.
