According to Meteorological Service Singapore, inclement weather has been forecast across the island till 2100 hours on Friday (18 April);

• Thundery showers are forecast in Western Water Catchment, Tengah, Chao Chu Kang, Bukit Batok, Jalan Bahar, Jurong West, Jurong East, Clementi, Boon Lay, Pioneer, Tuas and Jurong Island.
• Moderate rainfall is forecast in Lim Chu Kang, Sungei Kadut, Bukit Panjang, Central Water Catchment, Bukit Timah, Novena, Queenstown, Tanglin, Kallang, City, Bukit Merah, Marine Parade, Sentosa, Southern Islands and Western Islands.
• Rest of the areas have light rainfall forecast. Further details can be accessed via https://www.weather.gov.sg/weather-forecast-2hrnowcast-2/