El Nino Status on 7th February 2015
Most of the agencies monitoring El Nino have been forecasting every month from the beginning of 2014 that an El Nino would begin in the next two months. The year 2014 has completed without a full fledged El Nino. Only two consecutive overlapping 3-month seasons SON and OND have had ONI index equal to or above +0.5ºC thresh hold till end of 2014. SON 2014= +0.5ºC and OND 2014 = +0.7ºC
At the end of January 2015 we have one more overlapping 3-month season NDJ with ONI index equal to or above +0.5ºC thresh hold. NDJ 2015 ONI=0.7ºC. This makes total of three consecutive overlapping 3-month seasons SON, OND & NDJ with ONI index equal to or above +0.5ºC thresh hold till end of January 2015. SON 2014= +0.5ºC and OND 2014 = +0.7ºC and NDJ 2015 ONI=0.7ºC.
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.
Southern Oscillation Index
Ashokbhai, any idea about the monsoon for year 2015.
No. I don’t forecast for long term.
Thanks for giving brief understanding about Elnino and its development. Looking to the ONI of past Jan. 2013 I have seen that there was slightly increased in the SOI. Even though we faced the problem in third quarter of 2013. Same of Jan-2014. Now there is positive trend seems in ONI of DJF ( we will get in next week) as shown by you. Am I correct ?
Yes ONI for DJF 2015 will be available first week of March 2015.
The SOI was near -11.0 few days back and today it is close to -8.0 and is expected to decline towards -2.0 to 0.0 in next 10 days.
Ashokbhai El Nino ni upar apeli mahiti samjati nathi. Gujarati ma samjava vinanti. Aa varse El Nino ni Effect kevi rehse.
Je lokone EL Nino ange khyal hoi tena maate chhe aa mahiti. visay gahan chhe etle te samjav vu ahi shakya nathi.
General badhane jaanva jevu hashe tyare Gujarati ma mahiti nu taran aapvama avashe.