Weak El Nino Struggling To Strengthen – Southern Oscillation Index Not In Sync With Nino 3.4 SST

El Nino Update on 17th June 2015

Full fledged EL Nino was confirmed at the end of March 2015 when the five consecutive 3 monthly seasons had ONI index of +0.5 C or higher. It has been a weak El nino till date.

March, April & May 2015 SST anomaly for Nino3.4 region is used to calculate the ONI Index for MAM as +0.7ºC.

As per NOAA Officially El Nino is declared as per conditions laid down and shown in ONI Index graph below:

El Niño: characterized by a positive ONI greater than or equal to +0.5ºC. La Niña: characterized by a negative ONI less than or equal to -0.5ºC. By historical standards, to be classified as a full-fledged El Niño or La Niña episode, these thresholds must be exceeded for a period of at least 5 consecutive overlapping 3-month seasons.

ONI_MAM_2015

Classification of El Nino:

Weak El Nino: ONI Index +0.5ºC to 0.9ºC

Moderate El Nino: ONI Index +1.0ºC to 1.4ºC

Strong El nino: +1.5ºC to 1.9ºC

Very Strong El nino: +2.0ºC and above

As per classification a weak El Nino exist till date since the last ONI Index for MAM 2015 was +0.7ºC which is below +1.0ºC. Most International forecasters maintain that this El Nino is expected to become moderate and ultimately a strong El nino. This means that the ONI Index has to rise to above +1.5ºC. However, Southern Oscillation Index has been increasing from a negative zone and the SOI value has increased to above zero and is in the neutral zone recently.

Currently the two parameters are out of Sync with one another. This could be a temporary blip and should be monitored.

Latest Southern Oscillation Index values

Queensland Government – The Long Paddock

SOI values for 17 Jun 2015

Average for last 30 days

2.29

Average for last 90 days

-5.96

Daily contribution to SOI calculation

-1.69

Monthly average SOI values

March

-10.67

April

-3.08

May

-13.11

As per BOM, Australia:

The Southern Oscillation Index (SOI) was in the negative zone at the end of May 2015 and during the last two weeks has climbed up to above zero and has a positive value in the neutral zone. The latest 30-day SOI value from BOM-Australian Government for period ending June 15th June 2015 is +1.5 which denotes neutral zone.

 

BOM – 30 Days Moving SOI

soi30_170615

 

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જયંતીલાલ હાંસલિયા
જયંતીલાલ હાંસલિયા
19/06/2015 5:00 pm

દિલગીરી . ૧૭ જુન ૨૦૧૫ ની અલ્નીનો માટે નો સુધારો વાંચવો.

જયંતીલાલ હાંસલિયા
જયંતીલાલ હાંસલિયા
19/06/2015 12:32 pm

તા. ૧૬ જુન ૨૦૧૬ ની અલ નીનો સ્ત્ર્લીગ નીમાહિતી ગુજરાતી માંઆપવાં વિનંતી.

SHIVAM KESHVANI
SHIVAM KESHVANI
18/06/2015 11:03 pm

sir,kutch ma monsoon ne jor pakadta ketlu time lagse

Manoj
Manoj
18/06/2015 8:31 pm

Sir so is it early days to panic of deficit rains as for now it’s all on track ? Advice please

ashok vala
ashok vala
18/06/2015 7:24 pm

thanks sir. have santi thai . ane have atlu bons bas. have 5. 7 divas pachhi pelu uac ave ne kevo labh ape te upar 6.

bhavesh
18/06/2015 6:19 pm

Sir hal ma gfs model 574 ready 6. ke kharabi avi gai 6.

Sureshbhai
Sureshbhai
18/06/2015 6:02 pm

Sir madhyprdesh m.p. Baju thi vadla aave she to bob nu low pressure gujrat Baju aavvani skyta khri

MAKVANA SANJAY
MAKVANA SANJAY
18/06/2015 5:54 pm

નમસ્તે સર
આજ બપોર બાદ સાયલા,ચોટીલાને રાજકોટમાં ઓછાવતા અંશે વરસાદ.

piyush patel
piyush patel
18/06/2015 5:29 pm

Sir chamasu kem dhimu padigayu che?

sanjay marsonia
sanjay marsonia
18/06/2015 5:28 pm

sir
maro Matlab ae che ke 547 modal ma aje bob ni sistam utar baju jay che tem batave che

Ashish patel
Ashish patel
18/06/2015 5:10 pm

Sir Halvad MA Haji varsad nu tipuy padyu nathi amaro varo kyare aavase?

Rahul
Rahul
18/06/2015 5:01 pm

sri atiyare arbi ses imd mep ma je vadlo dekay se te surast bajo avi sake

dr a b kanani
dr a b kanani
18/06/2015 4:53 pm

jodiya taluka vistarma gajvij sathe varsad chalu

sanjay marsonia
sanjay marsonia
18/06/2015 4:40 pm

sir aje forecast modal ma takalif che?
bhayavadar ma andaje 1.5inch varsad che

dhaval patel
dhaval patel
18/06/2015 4:33 pm

wlcm sir !!!!!

piyush patel
piyush patel
18/06/2015 4:32 pm

Sir.Idar ni aaspas na vistromo hagu vavni layak varsad thayo nathi kyre thase?

dhaval patel
dhaval patel
18/06/2015 4:26 pm

last 2 days average good rainfall in porbandar area. average 0.5 to 3 inch.

kartik
kartik
18/06/2015 4:17 pm

http://www.gujaratweather.com/wordpress/?page_id=790

Sir as link juo haji sudhi juni image batave che.tamare update Thai jay che pan
Chek this…out
Pls…….

anil patel
anil patel
18/06/2015 3:58 pm

rajkot ma 18/06/15 ne 3:57pm time jordar varshad chalu se sir

anil patel
anil patel
18/06/2015 3:46 pm

sir rajkot par kala kala bov kala vadla se time 3:46pm

krinal solanki
krinal solanki
18/06/2015 3:41 pm

sir kodinar ma saro varsad kyare pad6 ? roj
savarthij kala vadla thai 6 pan varasto kem nathi ?

Rajnikant Faldu
Rajnikant Faldu
18/06/2015 3:41 pm

sir, arbi samudra upernu UAC low pressure ma kya sudhima parivatit thase ane teni saurashtra ma kevi asar thase.

Yahya Shaikh
Yahya Shaikh
18/06/2015 3:31 pm

Why Heavy rain in Ahmedabad mostly depends on BOB system, why not on any other system?

Suresh ladani
Suresh ladani
18/06/2015 3:22 pm

Junagadh jilla ma chhella 3 divas thi adhadha thi 2 inch varsad aave che to sarvtrik varsad kyare thase.

CA. JITEN THAKAR
CA. JITEN THAKAR
18/06/2015 2:32 pm

Sir,
In Rajkot Barometer showing 998.3 mb and it is falling rapidly so is it sign of low pressure ?

Hansraj Dhoriya
18/06/2015 2:23 pm

Have kutch ma kyare varsad avse?

Gopal kacha
Gopal kacha
18/06/2015 2:20 pm

Navi update k di apso ?

d.c.jadeja
18/06/2015 2:17 pm

have pasini aagahi kedi mukso sar

yogesh patel
yogesh patel
18/06/2015 2:14 pm

Sir morbi vistar ma varsad sarvtrik kyare padse

ashok vala
ashok vala
18/06/2015 2:03 pm

imd ma jyare ghata vadla hata tyare na avyo ane aje imd ma kai khas vadla dekhta nathi ane aje amara vistar ma dhabdhabavi nakhya

ashok vala
ashok vala
18/06/2015 1:59 pm

Ready dhan kamlit .
kadaka bhadaka sathe 2thi 3 inc

Gajendrasinh
Gajendrasinh
18/06/2015 1:38 pm

Keshod ma 1.10pm vagya thi kadaka ane vijadi sathe jordar varsad chalu thayo.

piyush patel
piyush patel
18/06/2015 12:06 pm

Sir.17-6-15 time 23:15 Gujaratweather.in google all imeges Mo time gai rat no che.

ashok vala
ashok vala
18/06/2015 11:14 am

sir. vavni jevitevi thai 6. ane aje 20vigha vavididhu 6. to sarvatrik vavni 22. 23 ma thai jase?

piyush patel
piyush patel
18/06/2015 9:25 am

Sir.IMD Ni imeges time sar update nathi thai tenu karan sarkari office che atle.

anil gami
anil gami
18/06/2015 6:24 am

very good sir… el nino sav khatam thay jay to saru

asif
asif
18/06/2015 4:20 am

sir alnino majubt nathi thai saktu to ani asr varsad ma kevi pade sari rahe ke kharab

Jivabhai
Jivabhai
18/06/2015 12:57 am

To labh thase..thanX

Smit
Smit
17/06/2015 11:57 pm

Sir, I want know that is el Nino is going to happen or not?. And it is going to affect the monsoon?

jigar
jigar
17/06/2015 11:29 pm

Sir
avakhte dar vakhat karta specially 3 thi 4 varus ma j varsad ni pattern j alag enakarta straight ne line wise chale che jem k mumbai than south guj thn saur else vache gya varso amare sngr per to varsad jajo prem mukyoto avakhte line ma varo avse amaro vwche thi varsade hadfete na lidha… And last sirji have surendranagar mate avta divso ma varsad kem rese

jigar
jigar
17/06/2015 11:25 pm

Hello sir
good for indian monsoon

jatin koyani
jatin koyani
17/06/2015 11:21 pm

sir il nino ni asar Gujarat par thay evu to kai nathi ne

vipul
vipul
17/06/2015 11:10 pm

Sir
aana vishe mare kai puchhvu nathi pan mane khali aetlu janavo el nino ochho thayo ke vadharo thayo?? Khali jankari mate

Sanjay
Sanjay
17/06/2015 10:42 pm

Sir El Niño ni asar osi thase evu mani sakay kharu?

Javiya mahesh T.
Javiya mahesh T.
17/06/2015 10:34 pm

Sir el-neno vise gujarati ma tukma ans. Apone pl.

Pravin Dholaria
Pravin Dholaria
17/06/2015 10:08 pm

Sir.please give what is final conclusion in short.

Hansraj Dhoriya
17/06/2015 10:06 pm

Elneno e su 6e? Anathi kya kya nuksan thay?

અશોક વાળા
અશોક વાળા
17/06/2015 10:04 pm

Sir sakya hoi to guj. Ma anuvad apso