NASA sees fading post-Tropical Cyclone John's warmer cloud tops
NASA AIRS infrared data on Sept. 4 at 5:23 p.m. EDT showed a circular swirl of clouds in post-tropical storm John where temperatures were around (yellow) 270 kelvin (26.3 F/-3.1 C), which are warm in terms of cloud top temperatures for thunderstorms.<br><br>Credit: NASA JPL, Ed Olsen<br>
When NASA's Aqua satellite flew over post-tropical storm John on Sept. 4 at 21:23 UTC (5:23 p.m. EDT) the Atmospheric Infrared Sounder (AIRS) instrument revealed that cloud top temperatures in the storm had warmed over the previous 24 hours.
AIRS data also showed there was one very tiny area of convection (rising air that forms the thunderstorms that make up a tropical cyclone) in the southwestern quadrant of the entire low pressure area.
The AIRS infrared data showed a circular swirl of clouds where temperatures were around 270 kelvin (26.3 F/-3.1 C), which are warm in terms of cloud top temperatures for thunderstorms. When cloud top temperatures reach the AIRS data threshold of -63F/-52C, they are considered strong thunderstorms.
The last advisory on John was issued by the National Hurricane Center on Sept. 4 at 2100 UTC (5 p.m. EDT), just before the AIRS image was captured by NASA's Aqua satellite. The 5 p.m. advisory put John's center about 505 miles west-northwest of Cabo San Lucas, Mexico, near 24.3 North and 117.7 West.
John's maximum sustained winds were near 35 mph (55 kmh) and weakening. The remnants of John were moving to the northwest at 12 knots (13.8 mph/22.2 kmh) as the low pressure area continued to weaken. John is expected to dissipate later today.
Media Contact
More Information:
http://www.nasa.govAll latest news from the category: Earth Sciences
Earth Sciences (also referred to as Geosciences), which deals with basic issues surrounding our planet, plays a vital role in the area of energy and raw materials supply.
Earth Sciences comprises subjects such as geology, geography, geological informatics, paleontology, mineralogy, petrography, crystallography, geophysics, geodesy, glaciology, cartography, photogrammetry, meteorology and seismology, early-warning systems, earthquake research and polar research.
Newest articles
High-energy-density aqueous battery based on halogen multi-electron transfer
Traditional non-aqueous lithium-ion batteries have a high energy density, but their safety is compromised due to the flammable organic electrolytes they utilize. Aqueous batteries use water as the solvent for…
First-ever combined heart pump and pig kidney transplant
…gives new hope to patient with terminal illness. Surgeons at NYU Langone Health performed the first-ever combined mechanical heart pump and gene-edited pig kidney transplant surgery in a 54-year-old woman…
Biophysics: Testing how well biomarkers work
LMU researchers have developed a method to determine how reliably target proteins can be labeled using super-resolution fluorescence microscopy. Modern microscopy techniques make it possible to examine the inner workings…
