Quick answer: Before heavy rain, check official weather and flood warnings, protect important belongings and plan safer routes. During flooding, do not enter unknown-depth or moving water on foot or in a vehicle. Follow official closures and seek emergency help when lives are at risk.
This guide gives you the immediate actions first, then explains the reasons and trade-offs. Follow the parts that apply to your situation; do not treat any shortcut as a guarantee.
At a glance: Monitor official alerts: In Singapore, use Meteorological Service Singapore weather information and PUB flood advisories. Prepare the home safely: Move important documents away from areas prone to water ingress. Plan travel alternatives: Avoid low-lying routes, flooded underpasses and closed roads. Avoid floodwater: Floodwater can hide open drains, debris, electrical hazards and strong currents. Never drive into flooding: A vehicle can stall or lose traction in floodwater. Protect electrical safety: Avoid submerged outlets and electrical equipment.
Start with these practical steps
- Monitor official alerts: In Singapore, use Meteorological Service Singapore weather information and PUB flood advisories. Conditions can change quickly; old screenshots may no longer be reliable.
- Prepare the home safely: Move important documents away from areas prone to water ingress. Keep accessible drains clear only when it is safe and permitted to do so.
- Plan travel alternatives: Avoid low-lying routes, flooded underpasses and closed roads. Allow additional time and follow official instructions rather than outdated navigation suggestions.
- Avoid floodwater: Floodwater can hide open drains, debris, electrical hazards and strong currents. Keep children away and move to a safer higher location.
- Never drive into flooding: A vehicle can stall or lose traction in floodwater. Turn around safely rather than assuming another driver’s crossing proves the road is safe.
- Protect electrical safety: Avoid submerged outlets and electrical equipment. Do not operate switches while standing in water; seek qualified help for flood-affected installations.
- Prepare essential supplies: Keep a charged phone, torch, essential medicines, water and necessary documents accessible. Account for children, older adults and mobility needs.
- Know emergency contacts: In Singapore, call 995 for SCDF emergency assistance and 999 for police emergencies. Do not attempt a dangerous rescue in moving water.
Tip 1: Monitor official alerts
In Singapore, use Meteorological Service Singapore weather information and PUB flood advisories. Conditions can change quickly; old screenshots may no longer be reliable.
What to check: verify the facts relevant to your own situation, choose a low-risk action and check whether the outcome improved. If a change introduces an unexpected cost, privacy concern or safety risk, stop and reconsider before proceeding.
Tip 2: Prepare the home safely
Move important documents away from areas prone to water ingress. Keep accessible drains clear only when it is safe and permitted to do so.
What to check: verify the facts relevant to your own situation, choose a low-risk action and check whether the outcome improved. If a change introduces an unexpected cost, privacy concern or safety risk, stop and reconsider before proceeding.
Tip 3: Plan travel alternatives
Avoid low-lying routes, flooded underpasses and closed roads. Allow additional time and follow official instructions rather than outdated navigation suggestions.
What to check: verify the facts relevant to your own situation, choose a low-risk action and check whether the outcome improved. If a change introduces an unexpected cost, privacy concern or safety risk, stop and reconsider before proceeding.
Tip 4: Avoid floodwater
Floodwater can hide open drains, debris, electrical hazards and strong currents. Keep children away and move to a safer higher location.
What to check: verify the facts relevant to your own situation, choose a low-risk action and check whether the outcome improved. If a change introduces an unexpected cost, privacy concern or safety risk, stop and reconsider before proceeding.
Tip 5: Never drive into flooding
A vehicle can stall or lose traction in floodwater. Turn around safely rather than assuming another driver’s crossing proves the road is safe.
What to check: verify the facts relevant to your own situation, choose a low-risk action and check whether the outcome improved. If a change introduces an unexpected cost, privacy concern or safety risk, stop and reconsider before proceeding.
Tip 6: Protect electrical safety
Avoid submerged outlets and electrical equipment. Do not operate switches while standing in water; seek qualified help for flood-affected installations.
What to check: verify the facts relevant to your own situation, choose a low-risk action and check whether the outcome improved. If a change introduces an unexpected cost, privacy concern or safety risk, stop and reconsider before proceeding.
Tip 7: Prepare essential supplies
Keep a charged phone, torch, essential medicines, water and necessary documents accessible. Account for children, older adults and mobility needs.
What to check: verify the facts relevant to your own situation, choose a low-risk action and check whether the outcome improved. If a change introduces an unexpected cost, privacy concern or safety risk, stop and reconsider before proceeding.
Tip 8: Know emergency contacts
In Singapore, call 995 for SCDF emergency assistance and 999 for police emergencies. Do not attempt a dangerous rescue in moving water.
What to check: verify the facts relevant to your own situation, choose a low-risk action and check whether the outcome improved. If a change introduces an unexpected cost, privacy concern or safety risk, stop and reconsider before proceeding.
Worked example
A commuter approaches an underpass that has begun flooding. A map app still suggests the route, but a closure sign is visible. Turning back and choosing a safer route is the correct decision, even if it means arriving late.
The example is for learning, not a prediction. Costs, service rules and personal circumstances vary. Use the decision process rather than copying the example’s assumptions.
Common mistakes to avoid
- Trusting an attractive shortcut without independently checking the details.
- Spending money before confirming the actual cause of the problem.
- Making several changes at once and then being unable to tell what helped.
- Ignoring safety, accessibility, privacy or important contractual conditions.
- Relying on outdated screenshots or unverified claims.
- Failing to keep evidence or check the result after acting.
Frequently asked questions
Can I estimate whether water is shallow enough to cross? Not safely by appearance alone.
What if water reaches electrical sockets? Stay clear and seek qualified or emergency help as appropriate.
Are rainfall and flood alerts identical? No. Rain warnings concern weather; flood advisories concern inundation risk or observed flooding.
A seven-day improvement plan
- Day 1: write down the specific problem and what you can verify.
- Day 2: complete the safest, easiest corrective step.
- Day 3: compare the result with your starting position.
- Day 4: investigate the next most important obstacle.
- Day 5: check costs, risks and any relevant official instructions.
- Day 6: make one further justified change if necessary.
- Day 7: review what worked and establish a simple routine.
Sources and further reading
General information reviewed November 2026. Check current official guidance, prices and terms for your circumstances.