After reviving Southwest Monsoon 2019, IOD and MJO now eye on Northeast Monsoon

October 22, 2019 9:04 PM |

Rain in India

The surprising performance of Southwest Monsoon 2019 is not unknown to anyone in the country. The season which was initially predicted to finish below normal, ended with excess rainfall so much so that country witnessed highest rainfall in 25 years. Well, the game changer were the two oceanic phenomena of IOD (Indian Ocean Dipole) and MJO (Madden-Julian Oscillation) that even surpassed deadly El Niño.

Both the weather phenomena, if in positive phase, are variably related with good Monsoon rains over the country. Now, these two flag bearer of good Monsoon rains are ready to take on Northeast Monsoon.

IOD has been positive ever since the beginning of June, becoming strongly positive during the second half. In fact, last week IOD saw highest weekly index value of the season to the tune of 2.5. Not only this, it is also highest since 2001.


IOD is declared if the index value are consistently above the threshold value of 0.4°C for the straight eight weeks. A positive phase sees greater than average SST and more precipitation in the western Indian Ocean region, with a corresponding cooling of waters in the eastern Indian Ocean. The negative IOD brings the opposite conditions. According to weathermen, more the difference is between sea surface temperatures of East Indian Ocean and West Indian Ocean, the stronger would be the IOD. The stronger IOD expands and strengthen the easterly winds, which are the most important component of the Northeast Monsoon.

Talking about MJO, the transient phenomenon is presently travelling in the favorable zone of Indian Ocean. According to Skymet Weather, MJO is likely to stay put over the region for the next 4-5 days.


With both MJO and IOD in our stride, weathermen have put great expectation from the ongoing Northeast Monsoon. Best example could be seen that there twin systems prevailing on either side of the coast, with great rain giving potential.

Image Credit: NDTV

Any information taken from here should be credited to

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

Weather Forecast

Other Latest Stories

Weather on Twitter
#Hindi: भारी बारिश की संभावना उत्तर भारत में है। दूसरी ओर दक्षिण भारत में उत्तर-पूर्वी मानसून भी सक्रिय हो रहा है।…
Wednesday, November 13 17:15Reply
After 1902, only in 2019 has seen as many as four cyclones in Arabian Sea which is very rare as Bay of Bengal is ge…
Wednesday, November 13 17:05Reply
A recent check on the data reveals that the number of Cyclones as well as Severe Cyclones in Arabian Sea as well as…
Wednesday, November 13 17:00Reply
#Hindi: श्रीनगर, शिमला, रोहतांग पास, डलहौज़ी, लेह, उत्तरकाशी, केदारनाथ सहित उत्तर भारत के पहाड़ों पर अनेक भागों में…
Wednesday, November 13 16:45Reply
#Hindi: चेन्नई सहित तमिलनाडु और आंध्र प्रदेश के दक्षिणी भागों में नार्थईस्ट मॉनसून के सक्रिय होने से बढ़ेगी बारिश।…
Wednesday, November 13 16:15Reply
#Hindi: 14 और 15 नवंबर को सिरसा, हिसार, भिवानी, महेंद्रगढ़ और चरखी दादरी सहित पश्चिमी हरियाणा के कुछ जिलों में बारि…
Wednesday, November 13 15:45Reply
#Hindi: आज यानि 13 नवंबर के बाद हम तमिलनाडु के तटीय इलाकों में बारिश शुरू होने की उम्मीद करते हैं। जबकि, बारिश की…
Wednesday, November 13 15:30Reply
#Pollution in #Delhi has once again plunged into #hazardous category on Tuesday. It is likely to remain the same to…
Wednesday, November 13 15:15Reply
बारिश 22 या 23 नवंबर तक जारी रह सकती है। राज्य के पुडुचेरी, कराईकल, तंजावुर, चेन्नई जैसे स्थानों के साथ-साथ दक्षिण…
Wednesday, November 13 15:00Reply
#Hindi: स्काइमेट के मौसम विशेषज्ञों का अनुसार, राजस्थान में यह बारिश 15 नवंबर तक जारी रहने की संभावना है। इसके बाद…
Wednesday, November 13 14:43Reply

latest news

Skymet weather

Download the Skymet App

Our app is available for download so give it a try