Tonga is an archipelago located in the South Pacific Ocean. It is made up of 169 islands, and 133 of those are uninhabited. The Kingdom of Tonga stretches over 500 miles (800 km) from north to south. The islands that make up the archipelago are all south of Samoa.
Rene passed over the northern island of Vava'u this weekend. Nuku'alofa, the capital city of the islands was lashed with gusty winds and heavy rainfall and residents experienced some power outages. In the center of the archipelago, the Ha'apai island group was hit by wind gusts as high as 143 miles (228 km) an hour.
By 4 a.m. ET (0900 UTC) on February 16, Rene’s maximum sustained winds had decreased to 45 knots (52 mph or 83 km/hr). Rene was located near 24.7 South and 179.6 West, about 440 nautical miles southeast of Nadi, Fiji. Rene was moving about 16 knots (18 mph or 29 km/hr) west-southwest.
Satellite data revealed that Rene’s low-level center of circulation is now fully exposed to wind shear. In addition, the deep convection (rapidly rising air that creates the thunderstorms that power tropical cyclones) has been sheared off to the south of the storm’s center, cutting of its power.
Rene is now moving over waters cooler than 80 degrees Fahrenheit (26.6 Celsius), so it is expected to continue weakening. 80F (26.6C) is the minimum warm water temperature threshold that a tropical cyclone needs to maintain strength. In addition to cooler waters an upper-level low pressure area to the northwest is helping to suppress convection from occurring. Wind shear is battering Rene, too, so the storm is being weakened from three major factors.
Before Rene struck Tonga, the nation was hit by a 6.1 magnitude earthquake on Saturday, February 13. The quake was 6.2 miles deep and was located about 60 miles southeast of Nuku’alofa. No injuries or fatalities were reported.
Residents of Tonga are grateful that Rene has passed so the clean up can begin.
Text credit: Rob Gutro, NASA/Goddard Space Flight Center
Rob Gutro | EurekAlert!
Fast rising bedrock below West Antarctica reveals an extremely fluid Earth mantle
22.06.2018 | Technical University of Denmark
Polar ice may be softer than we thought
22.06.2018 | Eberhard Karls Universität Tübingen
In a recent publication in the renowned journal Optica, scientists of Leibniz-Institute of Photonic Technology (Leibniz IPHT) in Jena showed that they can accurately control the optical properties of liquid-core fiber lasers and therefore their spectral band width by temperature and pressure tuning.
Already last year, the researchers provided experimental proof of a new dynamic of hybrid solitons– temporally and spectrally stationary light waves resulting...
Scientists from the University of Freiburg and the University of Basel identified a master regulator for bone regeneration. Prasad Shastri, Professor of...
Moving into its fourth decade, AchemAsia is setting out for new horizons: The International Expo and Innovation Forum for Sustainable Chemical Production will take place from 21-23 May 2019 in Shanghai, China. With an updated event profile, the eleventh edition focusses on topics that are especially relevant for the Chinese process industry, putting a strong emphasis on sustainability and innovation.
Founded in 1989 as a spin-off of ACHEMA to cater to the needs of China’s then developing industry, AchemAsia has since grown into a platform where the latest...
The BMBF-funded OWICELLS project was successfully completed with a final presentation at the BMW plant in Munich. The presentation demonstrated a Li-Fi communication with a mobile robot, while the robot carried out usual production processes (welding, moving and testing parts) in a 5x5m² production cell. The robust, optical wireless transmission is based on spatial diversity; in other words, data is sent and received simultaneously by several LEDs and several photodiodes. The system can transmit data at more than 100 Mbit/s and five milliseconds latency.
Modern production technologies in the automobile industry must become more flexible in order to fulfil individual customer requirements.
An international team of scientists has discovered a new way to transfer image information through multimodal fibers with almost no distortion - even if the fiber is bent. The results of the study, to which scientist from the Leibniz-Institute of Photonic Technology Jena (Leibniz IPHT) contributed, were published on 6thJune in the highly-cited journal Physical Review Letters.
Endoscopes allow doctors to see into a patient’s body like through a keyhole. Typically, the images are transmitted via a bundle of several hundreds of optical...
13.06.2018 | Event News
08.06.2018 | Event News
05.06.2018 | Event News
22.06.2018 | Materials Sciences
22.06.2018 | Earth Sciences
22.06.2018 | Life Sciences