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Expect less wet days with afternoon thundery showers in second half of Nov

The Meteorological Service Singapore (MSS) under the National Environment Agency said that the second half of November 2018 is expected to be less wet than the first half of the month and there could be a few warm days during this period.

According to the authority, inter-monsoon conditions with winds that are light and variable in direction have been prevailing over Singapore and the surrounding region since late October 2018.

In the second half of November 2018, the inter-monsoon conditions are forecast to persist, and a gradual strengthening and shift in the wind direction to blow from the northeast or northwest are expected towards the end of the month. This change in the monsoonal winds signals the start of the Northeast Monsoon season, and is expected to extend into March 2019.

The authority said that the rest of November 2018, localised short-duration moderate to heavy thundery showers are expected mostly in the afternoon on five to seven days, with the showers extending into the evening on a few of these days.

These showers are due to the favourable light wind conditions coupled with strong solar heating of the land areas during the day, it added.

On three or four days where the winds are forecast to blow from the southwest or west, the passage of Sumatra squalls moving across Singapore from the Strait of Malacca is expected to bring widespread thundery showers accompanied with gusty winds in the morning. Overall, the rainfall for November 2018 is likely to be above normal.

In the second half of November 2018, the daily temperature on most days is expected to range between 24°C and 33°C and the daily maximum temperature could reach a high of around 34°C.