May 10, 2009 10:16:03 pm
After a week of near-normal temperatures,the mercury climbed again on Saturday by touching 34.7 degrees in Colaba and 35.5 degrees Celsius in Santacruz. In a reversal of trends,humidity recorded a steep drop to 66 per cent and 61 per cent in the two stations respectively,when measured at 8.30 am on Saturday.
Dr R V Sharma,deputy director general of IMD,Mumbai,said,At this time of the year,humidity varies throughout the day by 30 to 40 per cent. With dry,north-easterly winds blowing in the day time and the cool,sea bound north-westerly taking over at night,there is great fluctuation of temperature and weather. At such times,the possibility of a spontaneous development of thunderstorm cannot be ruled out.
Sharma said that while the IMD has not predicted thundershowers in Mumbai for the weekend,sometimes when the heat is high and humidity rises suddenly,a weather condition could develop fast. Some places of Maharashtra including Pune have been experiencing such showers since the past two days, he said.
According to IMD officials,they are already keeping a watch for the progression of southwest monsoon. As a norm the monsoon arrives in Kerala by June 1 and then progresses northward touching Mumbai in 10 days.
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Any sporadic showers that occur in the city or the state at this time are a local phenomenon,stretching over just 20-30 km. Such weather conditions will precipitate within two hours and fade away immediately, he said.
The IMD forecast that a similar weather – with partly cloudy sky,high humidity and above normal temperature – will last till Monday.
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