Haze Situation Update (16 October 2023)

Singapore, 16 October 2023 – It was partly cloudy over Singapore except for some showers over the western parts of the island this morning. As at 6pm, the 1-hr PM2.5 concentration readings were 13-31 µg/m3, in Band I (Normal), and the 24-hr PSI was 54-72, in the Moderate range.

Update on Hotspot and Haze Situation

2    Dry conditions persisted over most parts of the surrounding region today. 285 hotspots were detected mostly in the southern and central parts of Sumatra, higher than the 24 hotspots detected yesterday.

3    While some showers are expected over Singapore, continued dry weather is forecast over the surrounding region tomorrow. The prevailing winds are expected to blow from the southeast, and occasionally from the south to southwest, with a chance of slight haze affecting Singapore. For the next 24 hours, the 24-hr PSI for Singapore is forecast to be in the Moderate range. The likelihood of transboundary haze affecting Singapore is expected to reduce towards Wednesday as shower activities are forecast to return to the surrounding region.

Activity Guidelines

4    The health impact of haze is dependent on one’s health status, the PSI level, and the length and intensity of outdoor activity. For immediate outdoor activities, please check the 1-hr PM2.5 concentration readings and personal guide. Use the 24-hr PSI forecast and corresponding health advisories for planning next day outdoor activities.

5     For updates, visit our haze microsite (www.haze.gov.sg), the NEA website (www.nea.gov.sg), MSS website (www.weather.gov.sg), mobile app (myEnv) or follow us on NEA Facebook (www.facebook.com/NEASingapore) and NEA Twitter (@NEAsg). For information on the distribution of hotspots detected over the past fortnight in the region, please refer to the ASEAN Specialised Meteorological Centre (ASMC) website at http://asmc.asean.org.

Areas with lighter smoke haze are not indicated as they cannot be clearly discerned from satellite imagery.

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