Sunday, May 30, 2010

Low pressure system forming over Arabian Sea

http://www.hindu.com/2010/05/31/stories/2010053157240400.htm

My monsoon-watch story in The Hindu on May 31:

THIRUVANANTHAPURAM: The upper air cyclonic circulation over southeast Arabian Sea noticed a couple of days ago by the India Meteorological Department (IMD) was found gathering in strength on Sunday.

In its bulletin for the day, the IMD said this evolving system would turn into a low pressure area during the next two days. It would by then move slightly in the northwest direction to be located over southeast and east central Arabian Sea.

The weather models of the IMD trace the system gaining further in strength (to become a depression and a deep depression) over the next seven days to make a landfall along the Gujarat coast. The models also show the system dragging rainfall activity along the entire western coast during this period. But a bulk of the precipitation under the influence of this system is seen to occur in the sea.

The outlook for the period up to June 4 favours widespread rain/thundershowers in Kerala, Lakshadweep Islands and coastal and south interior Karnataka. Rainfall occurred at many places in Kerala during the 24 hours ending 8.30 a.m., with Kanjirappally receiving a downpour of 7 cm. Kochi airport received 6 cm of rainfall and Kottayam, Kollam and Thiruvananthapuram 5 cm each.

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