1. BB-8 ( Depression) has shown very little movement since last report, and is located in North Bay, at 20.5N south of Kolkata. Expected to track W/NW into North Odisha.
2. Wednesday 17th, heavy rains likely in North Odisha, North Chattisgarh and East M.P.( Shahdol). Gangetic West Bengal can expect heavy showers in some regions.Inflow of moist West winds can bring scattered rains to parts of Saurashtra. Interior Peninsula continues to get subdued rains.
3. Thursday 18th, BB-8 strengthens and tracks NW into North Chattisgarh, with strong associated convection in SW and West segments. Heavy rains many regions of East M.P.
Kolkata: Next 2 days will see windy conditions. Sharp showers will be frequent on Wednesday.
Mumbai: Wednesday will be cloudy. Passing showers with chances of a few of them being heavy.
1.ENSO-neutral conditions are present.
2.Equatorial sea surface temperatures (SST) are near or below average in the east-central and eastern Pacific Ocean.
3.La Niña is slightly favoured to develop during August-October 2016, with chances of stronger La Niña during winter 2016-17.
4.The latest weekly SST
Niño 4 -0.1ºC
Niño 3.4 -0.6ºC
Niño 3 -0.7ºC
Niño 1+2 0.1ºC
5.The most recent ONI value (May-June-July 2016) is 0.2ºC. Down from 0.6 in April-May-June
(El Niño: characterised by a positive ONI greater than or equal to +0.5ºC.
La Niña: characterised 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