NASA's Terra satellite spotted a "zombie" tropical storm as Halloween week kicks off.
Tropical Depression 9 made landfall in Mexico's Yucatan Peninsula late last week and lingered as a remnant low pressure area on Saturday and Sunday, Oct. 25 and 26. Satellite data revealed that those remnants had reformed quickly and jumped up to tropical storm status, where it became "zombie" storm named Tropical Storm Hanna off the coast of Nicaragua. NASA's Terra satellite spotted strong thunderstorms around the zombie storm's center as it passed overhead.
At 9:30 a.m. EDT on Oct. 27, the National Hurricane Center (NHC) issued a tropical storm warning for Punta Patuca, Honduras southward to Puerto Cabezas, Nicaragua. A tropical storm warning means that tropical storm conditions are expected somewhere within the warning area...in this case within the next 6 to 12 hours.
The National Hurricane Center noted that tropical storm conditions are expected within the warning area through this evening. In addition, Hanna could produce 10 to 12 inches (250 to 300 mm) of rain, with isolated maximum amounts of 15 inches (400 mm), across Honduras and northern Nicaragua. These rainfall Amounts will produce life-threatening flash floods and mudslides.
NASA's Terra satellite passed over Tropical Storm Hanna on Oct. 27 at 03:45 UTC (Oct. 26 at 11:45 p.m. EDT) and the Moderate Resolution Imaging Spectroradiometer or MODIS instrument gathered infrared data on the storm.
The MODIS instrument showed high thunderstorms around the newly reformed center of circulation with cold cloud top temperatures near -63F/-53C that indicated they were high in the troposphere. Those strong thunderstorms have the potential to drop heavy rainfall.
Forecaster Berg at NHC noted that Hanna's center is very close to the coast of northeastern Nicaragua and moving to the west-southwest. Hanna is expected to make landfall and move inland over Nicaragua by late today, Oct. 27.
At 10 a.m. EDT, Hanna's center was near 14.5 north latitude and 83.2 west longitude. That's about 35 miles (60 km) north-northeast of Puerto Cabezas, Nicaragua, and about 35 miles (55 km) south of Cabo Gracias a Dios on the Nicaragua/Honduras border.
Hanna was moving toward the west-southwest near 7 mph (11 kph) and is expected to continue in that direction for the next day or two. Maximum sustained winds were near 40 mph (65 kph) and little change in strength is expected before landfall, followed by weakening as it moves inland.
NASA's Goddard Space Flight Center
Rob Gutro | Eurek Alert!
Scientists discover Earth's youngest banded iron formation in western China
12.07.2018 | University of Alberta
Drones survey African wildlife
11.07.2018 | Schweizerischer Nationalfonds SNF
For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.
To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...
For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.
Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...
Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.
A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...
Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.
"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....
Ultra-short, high-intensity X-ray flashes open the door to the foundations of chemical reactions. Free-electron lasers generate these kinds of pulses, but there is a catch: the pulses vary in duration and energy. An international research team has now presented a solution: Using a ring of 16 detectors and a circularly polarized laser beam, they can determine both factors with attosecond accuracy.
Free-electron lasers (FELs) generate extremely short and intense X-ray flashes. Researchers can use these flashes to resolve structures with diameters on the...
13.07.2018 | Event News
12.07.2018 | Event News
03.07.2018 | Event News
16.07.2018 | Physics and Astronomy
16.07.2018 | Transportation and Logistics
16.07.2018 | Agricultural and Forestry Science