Wednesday, May 18, 2016

May 18, 2016 at 08:42PM


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May 18, 2016 at 08:50PM

8:30pm, Cyclone 01B has drifted North, intensified. Amazing image in mid May. #weather

from Instagram

May 18, 2016 at 08:33PM

Chennai - 6:20pm, pouring here in Polichalur zone. #weather

from Instagram

91B is now 01B "almost a Cyclone"


91B - Depression, has drifted NNW during past 6hrs. Now seen 100km SE from Nellore... https://d2jhuj1whasmze.cloudfront.net/photos/original/ju4Jj.gif
1:45pm, fresh convection over the SW quadrant of 91B is causing moderate/heavy rainfall over #Chennai.
This can last for another 1 or 2 hr.

91B is now 01B - a marginal cyclone with pressure at 993mb and winds gusting to 75 kmph. 
01B - is expected to drift very close to Central-coast Andhra in 18hrs and then take a NE curve! ... https://d2jhuj1whasmze.cloudfront.net/photos/normal/ju5zS.jpg

2pm, 01B is causing extensive clouding ALL along SE coast India. Showers pushing into central,N-coast Andhra, Odisha .. https://pbs.twimg.com/media/Ciuiv9lUYAAVPW6.jpg:large

Models did not expect 01B to make any landfall in next 24hrs !
Instead it's expected to intensify and will be named #Roanu !

May 18, 2016 at 11:00AM


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May 18, 2016 at 08:27AM


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May 18, 2016 at 08:23AM


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May 18, 2016 at 08:18AM


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May 18, 2016 at 08:04AM


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May 18, 2016 at 06:31AM


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May 18, 2016 at 06:27AM


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May 18, 2016 at 06:23AM


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May 18, 2016 at 06:15AM

Chennai - 5:30am, the Eye of 91B is parallel, east to city at 120km. Moving away. #weather

from Instagram

May 18, 2016 at 01:17AM

Chennai - 1am, winds are from North. showers seen along coast are sliding South, not pushing inland. #weather

from Instagram

May 18, 2016 at 01:02AM


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91B - tracking north along N-coast Tamilnadu and intensifying


5:30pm, 91B is a Depression with pressure around 996mb (as of GFS) and drifted North along Tamilnadu coast... https://d2jhuj1whasmze.cloudfront.net/photos/original/jt5yX.gif


Now the 91B is expected to travel thru less shear zone, so its intensity will (or) can increase in next 12hrs... https://d2jhuj1whasmze.cloudfront.net/photos/normal/jt5ZA.jpg
By early morning, 91B can become Deep Depression (or) a marginal Cyclone and track close to #Chennai .. https://d2jhuj1whasmze.cloudfront.net/photos/normal/jt6dB.jpg
91B - GFS expects the system to become a marginal Cyclone at around noon of 18-May, very near to #Chennai .. https://d2jhuj1whasmze.cloudfront.net/photos/normal/jt6xF.jpg

Today afternoon, 91B is expected to track North along #Chennai coast and push to S,central-coast Andhra !

#Chennai - can experience HEAVY rain and high winds during next 12hrs.
Especially high winds after 5/6am.
#Chennai , N-coast Tamilnadu and S-coast Andhra to experience heavy rain & high winds during next 12hrs... https://d2jhuj1whasmze.cloudfront.net/photos/normal/jt7Aj.jpg

#Chennai - 12:26am, Pressure at 998.7mb, and a band of heavy rain is nearing coast ... https://d2jhuj1whasmze.cloudfront.net/photos/original/jt8bu.gif
Upper-level Wind profile ..
It's turning North upto 1km above sea... meaning 91B is nearing Chennai latitude and moving North.

"IF" 91B continue to track North along Chennai,N Tamilnadu coast.. apart from 1 or 2 heavy rain, NO significant rain expected for these zone.
"IF" 91B drifts NW towards #Chennai, then city can expect "HEAVY" widespread rain with high winds from 4am to 12noon.

@Karthikganesh29 
GFS suggests a Northerly track for 91B during next 12hrs- meaning 1 or 2 heavy rain along coast for Chennai, N TN,S Andhra.
This is the GFS forecast of rain along Chennai, N-coast Tamilnadu and S-coast Andhra during next 24hrs... https://d2jhuj1whasmze.cloudfront.net/photos/normal/jtawB.jpg