If the Bay circulation strengthens further.. then DRY conditions will prevail along N,central Tamilnadu coast, #chennai till midnight 28-Oct

6am, Showers seen over S,S-E Tamilnadu coast ... http://ow.ly/i/144AE 

Latest on "93W" over Bay

6:30am IST Satellite pic shows.. heavy convective activity seen in and around the system. Expected to become a LOW pressure system in next 24hrs. Now the pressure is around 1007mb.

Latest from JTWC, 11:30pm, 26-Oct
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THE AREA OF CONVECTION PREVIOUSLY LOCATED NEAR 11.7N 
94.0E, IS NOW LOCATED NEAR 10.9N 92.5E, APPROXIMATELY 580 NM WEST-
SOUTHWEST OF BANGKOK, THAILAND. ANIMATED ENHANCED INFRARED 
SATELLITE IMAGERY REVEALS PERSISTENT CONVECTION WRAPPING AROUND AN 
IMPROVING LOW LEVEL CIRCULATION CENTER (LLCC). A 0544Z OSCAT PASS 
REVEALS A WELL DEFINED BUT WEAK (10-15 KT) LLCC. UPPER LEVEL 
ANALYSIS AND ANIMATED WATER VAPOR IMAGERY REVEALS THE AREA IS JUST 
SOUTH OF THE SUBTROPICAL RIDGE AXIS WITH DIVERGENCE ALOFT GIVING 
SOME SLIGHT POLEWARD OUTFLOW. VERTICAL WIND SHEAR IN THE AREA 
REMAINS LOW (05-10 KNOTS). SEA SURFACE TEMPERATURES IN THE AREA ARE 
FAVORABLE (28-30 DEGREES CELSIUS) FOR DEVELOPMENT. MODEL GUIDANCE 
DEPICTS CONTINUED ORGANIZATION OVER THE NEXT 24-48 HOURS. MAXIMUM 
SUSTAINED SURFACE WINDS ARE ESTIMATED AT 10 TO 15 KNOTS. MINIMUM 
SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1007 MB. DUE TO 
IMPROVING CONVECTIVE ORGANIZATION AND NUMERICAL GUIDANCE, THE 
POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE 
WITHIN THE NEXT 24 HOURS IS UPGRADED TO MEDIUM

2 circulations.. 1 over S-E Arabian sea and another E-central Bay ... http://ow.ly/i/144vc

S-E Arabian sea circulation is expected to become a cyclone and track N-W in next 3 days .. http://ow.ly/i/144w0 

#chennai - a dry morning with almost NO cloud formations!.. meaning the moisture is being sucked in by 2 systems.. S-E arabian sea + Bay.

6:30pm, Low over E-central Bay is getting a shape .. http://ow.ly/i/13UEL

Latest NOGAPS model suggests that showers along N,central Tamilnadu coast, #chennai will start from morning of 28-Oct.. http://ow.ly/i/13UM4  

3:30pm, Presently, the S-E-central Bay circulation is tracked as "93W" .. "Slowly taking shape" .. http://ow.ly/i/13RXD

3:30pm, Heavy rain seen over most of Andaman Islands, due to "93W" ... http://ow.ly/i/13RXD 

Heavy showers are expected to start along central,N.Tamilnadu coast from night of 27-Oct or from early morning, 28-Oct http://ow.ly/i/13RRY

NOGAPS still suggests that system may become as a depression before hitting central Tamilnadu coast on 30-Oct.. http://ow.ly/i/13RT0

Interestingly COLA model suggests that the LOW will slide S-W into Mannar after touching N.Srilanka on 30-Oct.

So COLA predicts heavy rain for S,S-E.Tamilnadu and less rain for N,central Tamilnadu coast .. http://ow.ly/i/13RVW

COLA model supports Rain to start all along Tamilnadu coast from 28-Oct... http://ow.ly/i/13RWA 

Low level circulation is seen over S-E-central Bay.. http://ow.ly/i/13RMw

Another low level circulation is seen over S-E Arabian sea .. this may become Next Cyclone over Arabian sea .. http://ow.ly/i/13RNE

Today's S-E-central Bay circulation is expected to track west towards Central Tamilnadu coast, and come near on 28-Oct. http://ow.ly/i/13ROG

IMD-GFS & NOGAPS models are almost predicting a Low pressure system hitting central Tamilnadu coast on 29-Oct.

Cyclone Murjan has almost vanished along & over Somalia .. http://ow.ly/i/13RLx