Every 2 minutes Window reads NEA's lightning detectors, rain radar and rain gauges around Woodlands. It tells you when a thunderstorm is closing in and roughly when it will arrive, when to stay indoors because lightning is within 10 km, and when rain is likely in the next two hours.
Haze for Woodlands comes from NEA's North region monitors (24-hour PSI and 1-hour PM2.5). The nearest rain gauges are Woodlands Avenue 9 (1.3 km) and Woodlands Drive 62 (2.1 km).
Alerts for Woodlands on Telegram: @WindowSingaporeBot. A heads-up before storms and when haze turns unhealthy; nothing for maybes.