91B is now tracked as a Deep depression "05B"

Analysis at 2:30pm, suggests that the system has almost intensified into a Tropical Cyclone.
Pressure around 996.9mb and winds reaching upto 90 kmph.
Present position is almost parallel to Chennai, 13.48N , 88E

Latest wind analysis show a good concentration of winds around its center.
3:30pm, Visible shows heavy convective activity around its center.

JTWC warning at 2:30pm
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

TROPICAL CYCLONE 05B (FIVE), LOCATED APPROXIMATELY 350 NM SOUTH
OF VISAKHAPATNAM, INDIA, HAS TRACKED EASTWARD AT 10 KNOTS OVER THE
PAST SIX HOURS. ANIMATED VISUAL SATELLITE IMAGERY DEPICTS A 
CONSOLIDATING LOW-LEVEL CIRCULATION CENTER (LLCC) SOUTHEAST OF THE 
MAJOR AREAS OF CONVECTION. THE CURRENT POSITION HAVE BEEN RELOCATED 
75NM SOUTHEAST OF PREVIOUS 060600Z POSITION DUE TO THE VISIBLE LLCC. 
THE INITIAL INTENSITY OF 35 KNOTS IS BASED ON THE STEADY DVORAK 
INTENSITY ESTIMATES FROM PGTW. UPPER-LEVEL ANALYSIS INDICATES THE 
SYSTEM REMAINS IN A GENERALLY FAVORABLE ENVIRONMENT WITH MODERATE 
(10-20 KNOT) VERTICAL WIND SHEAR AND DIVERGENCE ALOFT PROVIDING GOOD 
EQUATORWARD AND POLEWARD OUTFLOW. TC 05B IS CURRENTLY QAUSI-
STATIONARY DUE TO A WEAK STEERING ENVIRONMENT IN A COL REGION 
BETWEEN TWO SUB TROPICAL RIDGES (STR). BEYOND TAU 36, AS THE SYSTEM 
MATURES, EXPECT IT TO TRACK ALONG THE SOUTHERN PERIPHERY OF THE STR 
THAT CURRENTLY LIES TO EAST OF THE SYSTEM, AS THE STR TRACKS INTO 
THE NORTHERN BAY OF BENGAL. THE CYCLONE IS EXPECTED TO REMAIN 
ON A GENERAL WESTWARD TRAJECTORY UNDER THE STEERING INFLUENCE OF THE 
STR THROUGHOUT THE FORECAST PERIOD. FAVORABLE UPPER-LEVEL CONDITIONS 
ARE EXPECTED TO CONTINUE, ALLOWING TC 05B TO SLIGHTLY INTENSIFY 
THROUGH TAU 48. JUST BEYOND TAU 72, TC 05B WILL MAKE LANDFALL SOUTH 
OF VISAKHAPATNAM AND DISSIPATE BY THE END OF THE FORECAST 
PERIOD. DUE TO LIMITED MODEL GUIDANCE WITH REGARD TO THIS EARLY 
SYSTEM, THERE IS LOW CONFIDENCE IN THE JTWC FORECAST. JUSTIFICATION 
FOR AMENDED AND RELOCATION: RELOCATED INITIAL POSITION OF TC 05B 
FURTHER TOT HE SOUTHEAST BASED ON VISIBLE LLCC. THIS CAUSED A 
FORECAST PHILOSOPHY CHANGE WITH REGARD TO TRACK SPEED AND FORECAST 
EXTENT. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 060600Z IS 10 FEET.

GFS model, JTWC suggest a Westward track from now on and weaken before reaching S Andhra coast and Chennai.

NAVGEM model suggests the same Westward track from now and "weaken" and then make a S-W track towards central Tamilnadu coast !!