Tropical Cyclone Imelda has slowed down in Southern Indian Ocean
An area of low pressure moving toward Cyclone Imelda from the west has turned the storm to the south from its westward track. Since interacting with the approaching area of low pressure from the west and then turning south, Imelda has slowed down. According to latest report by Joint Typhoon Warning Center (JTWC), Tropical Cyclone Imelda is located approximately 510 nm north-northeast of La Reunion. The system is moving east-southeastward at sped of 4 knots over the past six hours.
The Moderate Resolution Imaging Spectroradiometer (MODIS) instrument aboard Aqua captured a visible image on April 11, 2013 that showed a well-developed Tropical Cyclone Imelda in the Southern Indian Ocean that has now turned to the south.
At the same time, the Atmospheric Infrared Sounder (AIRS) instrument that flies with MODIS aboard Aqua, captured an infrared image of Imelda. The image showed that the strongest convection and thunderstorms had been pushed east of center from wind shear. Those powerful thunderstorms had cloud top temperatures colder than -52 Celsius (-63 Fahrenheit), and were dropping heavy rainfall. The strongest convection and most powerful thunderstorms are occurring in the storm’s eastern quadrants as a result of an increase in wind shear. Powerful thunderstorms are also occurring over the center of circulation.
The Joint Typhoon Warning Center forecasters expect Imelda to continue tracking generally southward over the next two days and then shift to the southeast as it starts moving around the edge of a ridge of high pressure. The sea surface temperatures in the vicinity are still quite warm, between 28 and 29 Celsius (82.4 and 84.2 Fahrenheit) which forecasters believe may help Imelda strengthen a little more over the next two days. After that time, wind shear is expected to increase and quickly weaken the storm.
- Storm-Centered Infrared (Meteosat 7; CIMSS)
- Storm-Centered Enhanced Infrared (Meteosat 7; CIMSS)
- Storm-Centered Water Vapor (Meteosat 7; CIMSS)
- Storm-Centered Visible (Meteosat 7; CIMSS)
- Meteosat 7 Infrared (Meteosat 7; CIMSS)
- Meteosat 7 Infrared (Color Background) (Meteosat 7; CIMSS)
- Meteosat 7 Infrared (NHC Color Enhancement) (Meteosat 7; CIMSS)
- Meteosat 7 Water Vapor (Meteosat 7; CIMSS)
- Meteosat 7 Water Vapor (Color Background) (Meteosat 7; CIMSS)
Featured image: TC Imelda captured on April 11, 2013 (Credit: MODIS/WorldView)
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