Wednesday, 28 March 2018

Three dead as flash flooding hits Sibolga, North Sumatra.

Three people have died in flash flooding in the city of Sibolga in North Sumatra in flash flooding on Monday 26 March 2018. Heavy rains began in the city at about 3.00 pm local time and persisted until about 11.00 pm. In the Aek Muara Pinang area of the city Aura Kasih Simanjuntak, 2, was swept away by floodwaters and found dead later, while in the Kampung Baru Sikaje-kaje Aek Manis area Linda Citra, 35, and her daughter Flara Citra, 5, were killed when their house was hit by a landslide triggered by floodwaters undermining a cliff. A second child, Stefani Claudya, 9, was seriously injured in this incident, which is described as having caused severe damage to three houses. Landslides are a common problem after severe weather events, as excess pore water pressure can overcome cohesion in soil and sediments, allowing them to flow like liquids. Approximately 90% of all landslides are caused by heavy rainfall. Flash floods are a particular problem in areas where urban sprawl has resulted in areas where the ground is covered by non-porous concrete of similar materials, preventing rainwater from sinking into the soil.
Damage caused by a landslip in the Kampung Baru Sikaje-kaje Aek Manis area of Sibolga, North Sumatra, on 26 March 2018. InfoPublik.
North Sumatra has a wet tropical climate, with a rainy season that lasts from October to April, when rainfall typically reaches 200-300 mm per month and a dry season from May to September, when rainfall is usually below 200 mm per month (though the area is never truly dry. This is driven by the Southeast Asian Monsoon Seasons, with the Northeast Monsoon driven by winds from  the South China Sea fuelling the wetter rainy season and the Southwest Monsoon driven by winds from the southern Indian Ocean the drier dry season. Such a double Monsoon Season is common close to the equator, where the Sun is highest overhead around the equinoxes and lowest on the horizons around the solstices, making the solstices the coolest part of the year and the equinoxes the hottest.

The winds that drive the Northeast and Southwest Monsoons in Southeast Asia. Mynewshub.

Monsoons are tropical sea breezes triggered by heating of the land during the warmer part of the year (summer). Both the land and sea are warmed by the Sun, but the land has a lower ability to absorb heat, radiating it back so that the air above landmasses becomes significantly warmer than that over the sea, causing the air above the land to rise and drawing in water from over the sea; since this has also been warmed it carries a high evaporated water content, and brings with it heavy rainfall. In the tropical dry season the situation is reversed, as the air over the land cools more rapidly with the seasons, leading to warmer air over the sea, and thus breezes moving from the shore to the sea (where air is rising more rapidly) and a drying of the climate.

 Diagrammatic representation of wind and rainfall patterns in a tropical monsoon climate. Geosciences/University of Arizona.

See also...
Follow Sciency Thoughts on Facebook.


  1. described as having caused severe damage to three houses. HISTORICAL LANDMARKS IN SANTEE

  2. Who would have ever believe that herbs can cure four years HERPES in my body, i never believe that this will work i have spend a lot when getting drugs from the hospital to keep me healthy, what i was waiting for is death because i never believed that i will ever get cured,but this faithful day i came across a testimony on the internet of a lady on a forum who said she live in Florida testifying about a man called Dr.OBUDU who cured her from HERPES SIMPLEX VIRUS, i decided to email him, unknowingly to me that this will be the end of the HERPES in my body, he prepare the herb for me, and give me instruction on how to take it and after that, he told me to go to the hospital for a check up, and i did exactly what he instructed, surprisingly after the test the doctor confirm me negative, i thought it was a joke, i went to other hospital to do another test and it was also negative, then i took my friend who was also HERPES positive to the Dr, after the treatment she was also confirm negative . He also have the herb to cure cancer please i want every one with this virus to be free, that is why am dropping his email address, OBUDU.MIRACLEHERBALHOME@GMAIL.COM his contact number (+2347035974895) thank you once again Dr.OBUDU for saving my life, and I promise I will always testify for your good work . EMAIL: OBUDU.MIRACLEHERBALHOME@GMAIL.COM

  3. I was diagnosed of HERPES in 2015, i have tried everything possible in life from one doctor to another, one hospital to another, series of tests different kinds of medication i had already lost hope until i meet Great DR OBUDU online testimonies, a specialist in herbal medication from Africa, i contacted him true his email OBUDU.MIRACLEHERBALHOME@GMAIL.COM and he prepared HERPES herbal medication for me which i took for 7days and now i am completely cured i want to use this medium to express my gratitude to him for saving my life and curing me from HERPES VIRUS for taking away all my pains and sorrows, I''m indeed grateful and i am so happy I''m now cured totally, I will continue to tell the good news of your great works to everyone, if you have HERPES or other disease contact him true his Email: OBUDU.MIRACLEHERBALHOME@GMAIL.COM Or whatsApp him via +2347035974895 thank you my great DR OBUDU for curing me keep up your great work