10:30am, W.D is affecting Kashmir, N,central Pakistan and slowly into N,N-W Punjab .. http://ow.ly/i/8eSPK 
10:30am, dense FOG seen over Punjab, N rajasthan, Haryana, many places in Uttarpradesh, N,W Bihar.. http://ow.ly/i/8eSPK

In next 24hrs, the upper-level W.D trough will cross into N,N-W India... At present its seen dipping up to 26/27N .. http://ow.ly/i/8eT1o 

Morning and Day temp across N,N-W,N-central India tomorrow will be normal or above normal with less fog conditions.
As the W.D upper-level trough, low-level circulation moves away east... the night temp will drop again over N,N-central,N-W India.

Chennai - 6:36am, IWM Polichalur station records 18.3 C. Cold as per Chennai standards.

Chennai - It was 19.9 C at 5:55am and now 6:35am it is 20 C.

S-E corner of Bay is having a weak low-level circulation.
An easterly wave is expected to travel West along with this circulation in 4 days

This easterlies can bring HEAVY rain for Srilanka and scattered rain for Tamilnadu coast, Chennai on 16,17,18-Jan.. http://ow.ly/i/8czrD 

Cold North India today morning..
Amristar, Bundi (Rajasthan) = 3 C
Lucknow, Jaipur, Delhi = 7 C
Dehradun = 5 C

Due to FOG, day temps across N India continue to be well below normal...
Delhi = 12 C (-9)
Hissar = 13 C (-8)
Allahabad = 15 C (-8)

Today morning in East India, Sundargarh records a low temp of 6 C.
In S India, Adilabad = 8 C.

Tamilnadu, Chennai .. continue to have warm days and mild morning around 22 C.
During next 2 or 3 days, the day and night temps over N,central Tamilnadu is expected to dip by 1 or 2C.
Chennai can expect a 20/21C morning

A good W.D system is expected to reach Pakistan and affect N,N-W India from Tuesday ... http://ow.ly/i/8cyEb 
During next 3 mornings, N-central,central,East India will continue to be COLD .!
From Monday morning, the min,max temps over N,N-W,N-central India will have above normal temps due to W.D.. http://ow.ly/i/8cyR0 

North East Monsoon withdrawal ... ow.ly/GOdUo

DRY days ahead for whole of South Peninsula during next 2 days... http://ow.ly/i/89tjl 
One more easterlies can reach Tamilnadu coast after 15-Jan ... http://ow.ly/i/89tr2 

Not so COLD morning in North India..
Pilani (Rajasthan) = 4.3 C
Chandigarh, Jaipur, Delhi = 8C
Lucknow = 11 C (+4)
Dehradun = 8 C (+3)

But some places in North India recorded Well below normal day temps..
Chandigarh = 13C (-8)
Ludhiana = 14C (-5)

Present mid,upper-level W.D moisture will continue to affect North kashmir, N Himachal till morning of 7-jan.
Up to 10-Jan, there's NO system expected for N,N-W India.

COLD morning to continue for most of N,central,E India and pushing into Chatisgarh, Odisha, N,N-E Andhra, N-E states http://ow.ly/i/89swH 

Weather Instagram at January 04, 2015 at 06:04PM

Chennai - 6pm, clear, mild, almost full moon evening. #weather . can expect a cold night, morning.

from Instagram

Weather Instagram at January 04, 2015 at 02:53PM

Chennai - 7am, fog and poor visibility in suburbs. #weather

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Weather Instagram at January 04, 2015 at 12:25PM

Near Perambalur - 12:23pm, warm, humid with breeze. #weather

from Instagram