Mammatus Clouds

Mammatus Clouds
photo © Craig Lindsay – Mammatus clouds over Regina Saskatchewan

Mammatus clouds are striking cloud formations mostly composed of ice with unusual shape due to protrusions hanging from the bottom of the clouds, formed by sinking cold air.
They can extend for hundreds of kilometers and stay visible in the sky for up to a few hours, usually before or after a storm, bringing often rain, hail, or snow, depending on the temperature of the atmosphere.

They are usually associated with cumulonimbus, which is indicative of heavy storms, but they may also be formed from cirrus and altostratus clouds, or even volcanic ash clouds.

http://www.bbc.com/earth/story/20150716-nine-rare-and-beautiful-clouds

Asian Monsoon

Often travellers have many doubts about the best seasons to visit Southeast Asia …. let’s clarify.

The Monsoon is a seasonal wind accompanied by changes in atmospheric circulation and precipitation due to the heating of land and sea.

On earth, there are many monsoon areas: the Gulf of Guinea, the Gulf of Mexico, Venezuela, Australia, Somalia, Spain, Portugal and northern Russia, but the area with the heaviest monsoon is Southeast Asia, owing to the huge continental mass.

summer monsoon

In the summer season, the Asian continent is warmer than the sea, becoming a low-pressure zone and creating fresh and humid winds from the sea, with heavy rainfalls.

winter monsoon
In the winter season, the Asian continent (high-pressure zone) cools, while the Indian Ocean (low-pressure zone) keeps their waters rather hot, creating dry and cold winds from the continent to the sea.

Best times to visit the Southeast Asian countries:

INDIA
South: from January to September
Northeast: from March to August
Kashmir areas: from May to September
Himalayan areas: from April to November

SRI LANKA

Southwest: from December to March
Northeast: from April to October

NEPAL
from September to November

MYANMAR – BANGLADESH
from November to February

THAILAND
North: from November to February
South: from March to May

LAOS – CAMBODIA
from November to February

VIETNAM
South: from December to April
Central Coast: from June to October
North: from May to October

MALAYSIA – INDONESIA
from May to October