Wednesday, May 27, 2015

Why is Chennai " COLD " today? 30 C at 4:30pm

Today, Chennai recorded a max of 37.6 C at around 11am and now, 4:45pm it is 29.9 C.
IWM Polichalur is 30.3 C.

Thanks to heavy HIGH cloud cover. This cloud cover came into land from a Thunderstorm over Bay very near to Chennai coast.

The T shower over Bay is due to the upper-level (500hpa) circulation over central Bay.

4:30pm, Now, HEAVY T showers seen over W,S-W from Chennai at 60 to 100km.

Parameters getting right for Monsoon onset over Kerala on 1-Jun-2015

1-Jun, the famous SW monsoon date is nearing... and the parameters are getting right for onset over Kerala coast on 1-Jun-2015.

Today as well, the N-S low-level trough from Bihar is seen upto N-E Andhra and will persist for next 2 days... 

Today, an upper-level (500hpa) weak circulation seen over central Bay and expected to drift W-S-W in 2 days... 

On the day of Monsoon onset over Kerala, E-W mid-level (700hpa) wind shear zone will / should run thru 13/14N !
At present this mid-level wind shear zone is running from central Andaman to central Maldives... 
Today's upper-level (500hpa) circulation over central Bay will drop a mid-level (700hpa) circulation in same location in next 36hrs.
And this mid-level circulation is expected to drift West towards Tamilnadu coast on 30,31-May... 
Gradually moving the mid-level E-W wind shear zone to North.
So, monsoon for S-E Srilanka, Colombo expected on 31-May.

Latest GFS model, the Monsoon will reach S-coast Kerala, S-tip Tamilnadu on its designated date " 1-Jun-2015 " .. 
GFS forecast for Trivandrum shows...
700hpa winds change to Westerlies on 31-May / 1-Jun ... 

Meanwhile T shower activity over Kerala, N,N-W,central Tamilnadu to increase from today !
27-May... T showers for N,central,N-W,W-ghats of Tamilnadu and N,central,W-ghats of Kerala... 
T showers again for N,central,N-W,W-ghats Tamilnadu and scattered all over Kerala.
S-coast Kerala, S-tip coast Tamilnadu can get early morning rain on 28-May.
27,28-May... some T showers are expected to pop into S,S-E Karnataka as well.

Nor'westers again for N,central Bengal and E Bihar on 27,28-May.
More HEAVY rain to continue over many zones of N-E states of India.
On evening, late-evening of 28-May... T showers, dust storm possible for N,N-W Rajasthan and even into S Punjab.

Above 45 C days ahead for Uttarpradesh, Andhra

Super #HOT days to continue for next 3 days over N,N-W,central,E-central,East, S-E and N,central Peninsula India.. 
Next 3 days, Above 45 C #HOT temps expected over Uttarpradesh, E Madhyapradesh, Jharkhand, Chatisgarh, W,central Odisha, Andhra, Telegana

#Chennai - 10:50am, Temp is 37.6 C and expected to touch 41/42 C today before 2:30pm.
During next 3 days, Vellore can touch a 44 C. And 43 / 44 C possible even for #Chennai.

#HOT #Delhi - the temp is expected to be around 45 C for the city during next 3 days ! 
RT @ShrivantR: @weatherofindia #Delhi morning today was cooler than past few days. 27c vs 30-31c. 

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