India – NASA Spots Tropical Cyclone Vardah’s Off-Center Strength

NASA-NOAA’s Suomi NPP satellite captured an image of Tropical Cyclone Vardah that showed strongest storms expanding west of the center.

On Dec. 9 the Visible Infrared Imaging Radiometer Suite (VIIRS) instrument aboard the NASA-NOAA Suomi NPP satellite captured a visible image of Tropical Cyclone Vardah in the central Bay of Bengal, Northern Indian Ocean. The VIIRS image showed thunderstorms wrapping around the low level center and expanding and becoming more persistent just to the northwest of the low-level circulation center. Moderate vertical wind shear is the reason for the displacement of the strongest storms. Despite the wind shear Vardah has become more organized over the previous 24 hours and had strengthened.

The Joint Typhoon Warning Center or JTWC noted that the vertical wind shear is expected to decrease as the storm moves toward India. The decrease in wind shear is expected to allow the storm to intensify and reach hurricane-force on Dec. 10 before weakening to tropical storm force.

At 10 a.m. EST (1500 UTC) on Dec. 9 Tropical Cyclone Vardah had maximum sustained winds near 51.7 mph (45 knots/83.3 kph). Vardah was located near 12.1 degrees north latitude and 89.7 degrees north longitude, about 632 nautical miles south of Chittagong. The tropical storm was moving to the west-northwest at 8 mph (7 knots/13 kph).

The JTWC forecast expects Vardah to continue moving to the west-northwest toward India, where it is expected to make landfall as a tropical storm by Dec. 12 south of Visakhapatnam, India.

On Dec 9 the NASA-NOAA Suomi NPP satellite captured a visible image of Tropical Cyclone Vardah in the central Bay of Bengal.
Credits: NASA/NOAA/Goddard Rapid Response Team

Source: NASA/Goddard Space Flight Center

Update from ECHO

European Civil Protection and Humanitarian Aid Operations (ECHO) reported yesterday, 09 December, 2016, that over the next 48 hours Vardah is forecast to continue moving northwest towards the eastern coast of India, strengthening. It may make landfall over the central coast of Andhra Pradesh state on 12 December, possibly as a Tropical Storm. As of 09 December early morning (UTC), the Indian Meteorological Department (IMD) has issued a Red Warning for locally heavy rain in Andaman and Nicobar Islands.

Flood summary

Last updated: December 22, 2016
Event
Tropical Cyclone Vardah, India, December 2016
Date
December 12 to December 14, 2016
Type
Flash flood
Cause
Extreme rainfall

Locations

A - Chennai
B - Nellore
C - Tirupati

Magnitude

Rainfall level
224 mm in 24 hours
Meenambakkam, Chennai, Yamil Nadu - December 12 to December 13, 2016
Rainfall level
75 mm in 24 hours
Nellore, Andhra Pradesh - December 12 to December 13, 2016
Rainfall level
76 mm in 24 hours
Tirupati - December 12 to December 13, 2016

Damages

Fatalities
12 people
December 12 to December 13, 2016
10 fatalities in Tamil Nadu, 2 in Andhra Pradesh. It is not clear how the victims died.
Evacuated
9,000
Nellore, Andhra Pradesh - December 11 to December 14, 2016
Evacuated
10,000
Tamil Nadu - December 11 to December 14, 2016