Will Pottuvil flood in the next hour?

Pottuvil flood risk right now: Normal. This is an estimate based on the Siyambalanduwa gauge on the Heda Oya (32 km away), which read 1.8 ft as of Tue, 27 Oct, 2:02 am (Sri Lanka time). In the next hour the Heda Oya at Siyambalanduwa should stay about the same. This is a forecast for the river, not an official warning, and streets can flood before the river reaches a flood mark.

How is the flood risk for Pottuvil worked out?

From the nearest river gauge ({gauge}, 32 km away), recent and expected rain, the gauge's forecast and any official warning. It is an estimate for the town, not an official warning, and streets can flood before the river reaches a flood mark.

Where does this come from and how often does it update?

River readings come from the Department of Irrigation's gauges, roughly once an hour, and this page checks for new ones every minute. This site is independent and not an official warning service: follow the Disaster Management Centre and call 117 in an emergency.

Is Pottuvil flooding?

Pottuvil, Ampara

Pottuvil flood risk right now: Normal. This is an estimate based on the Siyambalanduwa gauge on the Heda Oya (32 km away), which read 1.8 ft as of Tue, 27 Oct, 2:02 am (Sri Lanka time).

Reading at 2:02 am · 43 min ago

Normal

1.8 ft

Next hour

River steady

Next 24 hours

No flooding expected today

Experimental estimate. There is no river gauge in Pottuvil; this uses Siyambalanduwa, 32 km away, plus rain at the town and official warnings.

Details

How this estimate works

· Starts from the river gauge's own level and forecast, the same as the gauge page.
· Heavy rain here (50 mm in 6 hours or 100 mm in 24 hours) raises it by one step, never more.
· Your own street level, if you set one, and official warnings can raise it further.
· It never says flooding is happening: only a measurement can show that.

Why

Heda Oya is well below flood levels and no heavy rain is expected

Your river

Siyambalanduwa

Heda Oya · 32 km away

Normal1.8 ft2:02 am

Is this right?

Each answer helps us improve the forecast for your area.

Based on: Siyambalanduwa gauge on the Heda Oya, 32 km away

Set your street's flood level

At what Siyambalanduwa reading does water reach your street? Saved on this device only, never sent anywhere.

Rain in Pottuvil

Moderate rain in the last 24 hours (12 mm). Moderate rain expected this afternoon, about 18 mm in the next 24 hours.

mm per hour

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Rain map

Did the streets near you get water today?

Your answer helps us check our warnings. It is anonymous: we save only the town and your answer. Nobody sees single answers; we show only totals of 3 or more.

When? (optional)

Flood help and phone numbers

Common questions

Is Pottuvil flooding now?: Pottuvil flood risk right now: Normal. This is an estimate based on the Siyambalanduwa gauge on the Heda Oya (32 km away), which read 1.8 ft as of Tue, 27 Oct, 2:02 am (Sri Lanka time).
Will Pottuvil flood in the next hour?: Pottuvil flood risk right now: Normal. This is an estimate based on the Siyambalanduwa gauge on the Heda Oya (32 km away), which read 1.8 ft as of Tue, 27 Oct, 2:02 am (Sri Lanka time). In the next hour the Heda Oya at Siyambalanduwa should stay about the same. This is a forecast for the river, not an official warning, and streets can flood before the river reaches a flood mark.
How is the flood risk for Pottuvil worked out?: From the nearest river gauge ({gauge}, 32 km away), recent and expected rain, the gauge's forecast and any official warning. It is an estimate for the town, not an official warning, and streets can flood before the river reaches a flood mark.
Where does this come from and how often does it update?: River readings come from the Department of Irrigation's gauges, roughly once an hour, and this page checks for new ones every minute. This site is independent and not an official warning service: follow the Disaster Management Centre and call 117 in an emergency.

Heda Oya · Sources: Department of Irrigation gauges, Open-Meteo rain, Disaster Management Centre warnings.