Friday, September 21, 2012

upper air profile [850hPa]

  1. From 850hPa level plot {12 Z 21 Sept 2012}it may be presumed that in peninsular India the temperature is 20 Deg Celsius.  
  2. The height is varying between 1470m in the northern side to 1500m towards southern site.
  3. Keep this in mind and view the cloud imagery.
@ravigrover4 >> #Goa - Almost NO rain forecast for Goa till 25-Sep. Low cloud formations will be there during Morning & Evening.
Scattered rain will persist over Most of N,N-W,N-E,E.Maharastra, S.Chatisgarh, Orissa and into Bengal for next 36hrs..

Last of the heavy rain over most of N-E states will continue for next 2 days ...

Some rain is expected to persist over N,N-E,E.Maharastra, S.Chatisgarh & Orissa till 24-Sep..

Rains may even pop over S,S-W.Madhyapradesh till 24-Sep.

Rain over N,N-E.Andhra is expected to persist till 25-Sep... and may be beyond that!
Offshore trough along S-W coast has vanished ...

LOW over Pakistan is almost gone.. it'll completely vanish in another 4 days..

Almost NO low level circulation seen at 925hpa levels over India ...

A circulation seen over N-N-E Arabian sea at 850hpa levels .. It'll vanish in almost the same zone in next 36hrs..

On 26-Sep, N-central Bay may pop a circulation ..

Today, a weak UAC can be seen along N,central Andhra coast ...

The present UAC along N,central Andhra coast is expected to persist & even strengthen by 25/26-Sep ... 
Water vapor channel Satellite image shows "very less moisture" over Pakistan,N,N-W India.. Sign of Monsoon Withdrawal . 
RT @aknarendranath: @weatherofindia What i tweeted to you yesterday, the newspapers are reporting today. #Delhi 
#chennai - 1:23pm, the high cloud cover vanished and now having good preliminary T.cell formations. Very HUMID with mild breeze from S-E.

#chennai - now, air current directions are unstable upto a height of 3.6km above sea level.

Again, HIGH vertical.V possible from 3pm over S,S-E.Karnataka, N,N-E.Tamilnadu, #chennai & S.Andhra till 1am.. Heavy T.showers ahead.

#chennai - zone will have High vertical.V after 4pm.. T.showers possible again before 2am.. 
Yesterday from 3pm till 7am today, N-E Tamilnadu, #chennai & S.Andhra witnessed lots of T.showers... 
Monsoon rains plentiful for fourth straight week ...

Monsoon likely to pack its bags... 

850 hPa temperature and clouding

Wyoming Weather Web is publishing upper air profile details for various regions of the globe.  The 850 hPa plot for Indian Ocean region shows temperature anomaly in Bay of Bengal.  The clouding pattern is also similar to this.