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Dr Jeff Masters Cyclone Lehar November 25, 2013

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Dr Masters blog and the Wundergound Tropical page are both very helpful in understanding and tracking these dangerous storms.
Dangerous Category 1Cyclone Lehar is intensifying as it heads west-northwest at 8 mph towards India’s Bay of Bengal coast. Satellite images show that Lehar–which is the Hindustani word for “wave”–has developed a large Central Dense Overcast (CDO) of high cirrus clouds over its center, which is characteristic of intensifying tropical cyclones approaching hurricane strength. With wind shear a moderate 10 – 20 knots and ocean temperatures a very warm 28 – 29°C, Lehar is expected to continue to intensify to a major Category 3 storm until just before landfall, which is expected to occur near 03 UTC Thursday, November 28 in the Andhra Pradesh state of India. This is the same portion of the coast that Cyclone Helenhit on Friday as a tropical storm with 40 mph winds. Helen’s heavy rains killed elevenpeople, caused widespread severe agricultural damage, and left the soils saturated, which will make the rains from Lehar doubly dangerous. Also of concern is the storm surge, which will impact a portion of the coast that is heavily populated and low-lying. The India Meteorological Agency (IMD) is predicting that Lehar will generate a storm surge of up to 1.6 – 2.9 meters (5.2 – 9.5 feet) to the right of where the eye makes landfall.

Lehar.A2013329.0425.2km.jpg
Figure 1. Cyclone Lehar over the Andaman Islands in the Bay of Bengal at 04:25 UTC November 25, 2013. At the time, Lehar was at Category 1 strength with top winds of 75 mph. Image credit: NASA.

An unusually active tropical cyclone season for India
In addition to Cyclone Helen, India’s Bay of Bengal coast also was hit this year by Tropical Cyclone Phailin, a Category 4 storm with 140 mph winds, which killed 44 people and did $1.1 billion in damage on October 12, 2013. It’s unusual for India to get hit by so many named storms in one year; the last time three or more named storms did so was in 1996, when six storms of at least tropical storm intensity hit. Only four Bay of Bengal tropical cyclones have hit India at hurricane strength since 2000, if we include Cyclone Phailin from 2013. The others were:

Category 1 Cyclone Ailaof May 25, 2009, which hit near Kolkata, killing 96, causing $553 million in damage.
Category 1 Cyclone Thane, of December 30, 2011, which hit Southeast India, killing 48, causing $376 million in damage.
Category 1 Cyclone 05B, which hit Southern India on November 29, 2000, killing six.

The last major tropical cyclone to hit the portion of the coast that Lehar is threatening occurred on June 14 1996, when Category 4 Tropical Cyclone 07B struck, killing 731 people. Wunderground’s weather historian Christopher C. Burt has a detailed post onIndia’s tropical cyclone history. During the past two centuries, 42 percent of Earth’s tropical cyclone-associated deaths have occurred in Bangladesh, and 27 percent have occurred in India (Nicholls, R.J.N., N. Mimura, J.C. Topping, 1995, “Climate change in south and south-east Asia: some implications for coastal areas,” J Glob Environ Eng 1995;1:137–54.)

You can read the rest of this post at- http://www.wunderground.com/blog/JeffMasters/comment.html?entrynum=2587

Dr Masters blog is here-http://www.wunderground.com/blog/JeffMasters/show.html

The details and up to date info on Cyclone Lehar csn be found at-http://www.wunderground.com/hurricane/northern-indian/2013/tropical-cyclone-Lehar

The Tropical Weather page is here-http://www.wunderground.com/hurricane/

Please share info with those in the danger areas and stay safe if you are there!

As always, for everyone who prays, lets join together in praying for the safety and support of all in the path of Cyclone Lehar.

Author: ohnwentsya

Be the change you wish to see, let's co-create the win-win future we know is possible together!

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