Tag Archives: 16 November 2014

It is mostly quiet in the northern front!

Schematic depicting the back and forth swing of the Earth's axis with respect to the Sun (courtesy of Wiki-Pedia)

Schematic depicting the back and forth swing of the Earth’s axis with respect to the Sun (Wiki-Pedia)

It is now mid-November and the Earth’s axis continues to tilt toward the ecliptic north pole bringing more and more of the southern hemisphere  face to face with the Sun, as our planet approaches the winter solstice on 21 December 2014, in a cycle already repeated millions of times.

Satellite image of 16 November 2014 (NOAA) for the aviation industry (AVN) showing a rather quiet north Atlantic basin in terms of tropical cyclone activity
Satellite image of 16 November 2014 (NOAA) for the aviation industry (AVN) showing a rather quiet north Atlantic basin in terms of tropical cyclone activity

Under the influence of this annual dance tropical cyclone activity increases and peaks in the region of the Earth facing the Sun, as the atmosphere and oceans get warmer and other contributors to cyclogenesis influenced by the Sun’s energy coalesce  in various basins.

Satellite image (NASA) of 16 November 2014 showing a large tropical wave in the southern Indian Ocean to the west of Madagascar, which shows potentioal for cyclonic development
Satellite image (NASA) of 16 November 2014 showing a large tropical wave in the southern Indian Ocean to the west of Madagascar, which shows potentioal for cyclonic development

Today is Sunday 16 November 2014 and there are no tropical cyclones active anywhere in the northern hemisphere, however we already see cells of disturbed weather on both sides near the equator, but mainly in the southern hemisphere There is in fact one large tropical wave around a center of low pressure over the southern Indian Ocean, which is already showing signs of potential cyclonic development.

Color-enhanced infrared satellite image of 16 November 2014 (NOAA) showing a tropical wave with potential for cyclonic development in the southern Indian Ocean to the  west of Madagascar
Color-enhanced infrared satellite image of 16 November 2014 (NOAA) showing a tropical wave with potential for cyclonic development in the southern Indian Ocean to the west of Madagascar

Satellite images and date collected by satellites show a mostly quiet western hemisphere, in terms of tropical cyclone activity, and progressively cooler surface waters in the northern Pacific and Atlantic oceans.

Map of sea surface temperatures in the northern Atlantic basin, based on remote sensed data from satellite observations (N)AA) for 15 November 2014
Map of sea surface temperatures in the northern Atlantic basin, based on remote sensed data from satellite observations (N)AA) for 15 November 2014