Onset of Southwest Monsoon through the years and Monsoon 2019 trend

May 20, 2019 2:51 PM |

Monsoon 2019

Southwest Monsoon marked its onset over South Andaman Sea and Islands including Car Nicobar on May 18, two days before its usual arrival date. The Bay islands see Monsoon arrival in two spurts wherein Monsoon arrives over South Andaman Islands first which includes Car Nicobar, while in the second spurt North Andaman Sea including Sri Lanka see Monsoon showers. There are three entry points of Southwest Monsoon.

The third spurt is where Monsoon arrives over the mainland, which is the state of Kerala. However, there is no fixed or similar timing for the arrival of Monsoon. Like this time, in 2016 also Monsoon arrived over the Andaman and Nicobar Islands on May 18.

The earliest when Monsoon arrived in the last few years, has been in 2017 when Monsoon made an onset over South Andaman Islands on May 14 itself. The complete onset after initial onset gets complicated and advances in many installments. If the Monsoon current is good, the onset covers large areas.

There are some years when the onset is very slow. Year 2017 saw segmentation of Monsoon advancement and had become most complicated towards the eastern and northern parts including Rajasthan, Punjab and Haryana.

In the last few years, the latest arrival of Monsoon was seen in 2011 when it marked its onset over Bay islands on May 29. It was also that one and only year when the onset over South Andaman Islands took place along with the mainland, i.e. Keraka, and still fell short of Car Nicobar region.

However, the onset date and time holds no relevance towards the entire journey towards the entire country.

As far as the complete onset is concerned, the earliest in the past decade or so has been in 2013 when Monsoon arrived over the entire country on June 16 itself. This is the year when the Uttarakhand tragedy took place.

The latest has been July 19, in 2011 when the last post was covered by July 19. The normal date for Monsoon arrival over the entire country is within a period of 45 days. Most of the time, Monsoon reaches the last post by July 10, covering all areas.

This year, conditions are favourable for the onset of Monsoon, around Port Blair in the next four five days. Indian Ocean arm should reach closer to Sri Lanka during the same time.

Southwest Monsoon’s arrival date over Kerala is June 1 but it almost never meets its timeline. In the last four decades, Monsoon has arrived on June 1 over Kerala only in the years 1980, 2000 and 2013.

This time, as has already mentioned by Skymet Weather, Monsoon 2019 is likely to make an onset over Kerala around June 4, a little later than the usual onset.

Image Credit: Manorama Online

Please Note: Any information picked from here must be attributed to skymetweather.com





For accurate weather forecast and updates, download Skymet Weather (Android App | iOS App) App.

Weather Forecast

Other Latest Stories



Weather on Twitter
नवंबर में फिलहाल अब तक बारिश की कमी रही है। तमिलनाडु में खासतौर से मॉनसून वर्षा में कमी रही है, जहां उत्तर-पूर्वी… t.co/Kn7JjxWKr2
Monday, November 11 21:00Reply
Let us take a look at the #WeatherForTheWeekAhead t.co/6GDd7yj8HS
Monday, November 11 20:30Reply
RT @SkymetAQI: दिल्ली और राष्ट्रीय राजधानी क्षेत्र में वायु गुणवत्ता खराब हो गई है क्योंकि प्रदूषण फिर से खराब से बेहद खराब ’श्रेणी में आ ग…
Monday, November 11 20:16Reply
मौसम विज्ञानियों ने प्रदूषण के स्तर में और वृद्धि की भविष्यवाणी की है। दिल्ली और एनसीआर में आने वाले दिनों में वायु… t.co/83ALj0Zfhq
Monday, November 11 20:00Reply
Sowing of the Rabi crop has been delayed due to incessant rains during harvesting period of Kharif season over key… t.co/5VQ9wFhpUR
Monday, November 11 19:40Reply
The clearance of “Bulbul” will gradually pave the way for strengthening of Northeast Monsoon in Peninsular India. R… t.co/hLBR2XtUSy
Monday, November 11 19:30Reply
The remnant of the cyclone “Maha” continues to persist as a feeble circulation in the North-East Arabian Sea and ca… t.co/gbLIp12ZBa
Monday, November 11 19:20Reply
he temperature will possibly continue to fall in Delhi in the first half of the week, dropping to below 13 degrees.… t.co/gOqIXY2vz1
Monday, November 11 19:05Reply
बांग्लादेश में अब तक आठ लोगों के मरने की सूचना है, जिनमें से पांच पेड़ गिरने के कारण अपनी जान गंवा बैठे। जबकि पेड़… t.co/wwW39gPALj
Monday, November 11 19:00Reply
#Rain will be confined to #Kerala, South Interior #Karnataka and the interiors of #TamilNadu in the first half of t… t.co/qirri209fr
Monday, November 11 18:50Reply


latest news

Skymet weather

Download the Skymet App

Our app is available for download so give it a try