Tuesday , 10 December 2019
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Winter yet to set in Goa

Panaji: Although the month of December  has already begun,   winter is yet  to set in over Goa.  The region may not see the typical winter chill until December 10.

The onset of winter is likely to delay in the state because of cyclonic circulations that have built up over southeast Arabian Sea,  adjoining Lakshadweep  and over Southwest Arabian Sea.

Goa has been witnessing cloudy weather with day temperature  dropping for the past four days; the night has remained warmer by at least three degrees. This it is expected to continue till Friday. 

Usually  people in Goa start experiencing early morning chill by November-end as the approach of western disturbances brings northerly chilled winds into the state.

But this has changed under the combined effect of the two weather systems.

“When the sky remains clear, the day temperature shoots up and the night temperature drops. The opposite happens when clouds come in. The induced cyclonic circulation that has developed in the Arabian Sea has made sky cloudy, obstructing constant flow of northerly winds that bring cool air through western disturbances. Also, during this period, the wind pattern is easterly, south-easterly,” an IMD  official explained.

On Tuesday, the night temperature was 25.4 degrees Celsius, which is 3.7 degree above normal as warm winds continued to blow easterly and southerly direction.

The day temperature dropped to 30 degrees Celsius, which was  3.5 degree below normal.

The humidity level recorded during the day was 68 per cent, which is five per cent below normal, while at evening the same was recorded at 69 per cent.

The presence of moisture or humidity during the night also tends to increase heat index, interrupting the passage of long wave radiation from the earth’s surface. This radiation is warm and its influence near the ground-level tends to increase the night temperature.

The IMD inference stated that low pressure area over southeast Arabian Sea and adjoining areas of eastcentral Arabian Sea and Lakshadweep is very likely to turn into a depression during the next 24 hours. Whereas the deep depression over southwest Arabian Sea is very likely to intensify into a cyclonic storm during the next 12 hours, and move west-northwestwards.

The IMD has warned of squally winds reaching 40-50 km/hr in speed and gusting to 60 km/hr along  the coast of Karnataka,  Maharashtra and Goa  for the next 24 hours in view of the brewing cyclone and depression in the Arabian Sea.

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