Will Mathugama flood in the next hour?

Mathugama flood risk right now: Alert. This is an estimate based on the Magura gauge on the Kalu Ganga (14 km away), which read 16.9 ft as of Tue, 27 Oct, 1:01 am (Sri Lanka time). In the next hour the Kalu Ganga at Magura could rise to about 17.0 ft (16.8–17.3 ft). 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 Mathugama worked out?

From the nearest river gauge ({gauge}, 14 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 Mathugama flooding?

Mathugama, Kalutara

Mathugama flood risk right now: Alert. This is an estimate based on the Magura gauge on the Kalu Ganga (14 km away), which read 16.9 ft as of Tue, 27 Oct, 1:01 am (Sri Lanka time).

Reading at 1:01 am · 47 min ago

Alert

16.9 ft

Next hour

River rising slowly

Next 24 hours

Risk stays high

Move valuables up, charge your phone

Experimental estimate. There is no river gauge in Mathugama; this uses Magura, 14 km away, plus rain at the town and official warnings.

Call 117 Kalutara DMC office

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

Irrigation Department has issued a flood warning for Kalu Ganga
Kalu Ganga at Magura is 16.9 ft, rising slowly (at alert level)
61 mm of rain in the last 24 hours
34 mm of rain expected in the next 24 hours

Your river

Magura

Kalu Ganga · 14 km away

Alert16.9 ft1:01 am

Kalawellawa (Millakanda)

Kalu Ganga · 13 km away

Minor flood22.6 ft

Is this right?

Each answer helps us improve the forecast for your area.

Based on: Magura gauge on the Kalu Ganga, 14 km away

Set your street's flood level

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

Rain in Mathugama

Heavy rain in the last 24 hours (61 mm). Moderate rain expected this afternoon, about 34 mm in the next 24 hours.

mm per hour

Tap or hover a bar to see that hour.

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)

River map

GaugeReservoirTap a gauge or reservoir for details.

Official flood map

None of the Grama Niladhari divisions around Mathugama is in the Irrigation Department's maps of past floods on the Kalu Ganga (2017). Low spots can still flood.

This shows where a past flood reached, not a flood now. A bigger flood can go further.

Flood maps: Irrigation Department of Sri Lanka

Flood help and phone numbers

Common questions

Is Mathugama flooding now?: Mathugama flood risk right now: Alert. This is an estimate based on the Magura gauge on the Kalu Ganga (14 km away), which read 16.9 ft as of Tue, 27 Oct, 1:01 am (Sri Lanka time).
Will Mathugama flood in the next hour?: Mathugama flood risk right now: Alert. This is an estimate based on the Magura gauge on the Kalu Ganga (14 km away), which read 16.9 ft as of Tue, 27 Oct, 1:01 am (Sri Lanka time). In the next hour the Kalu Ganga at Magura could rise to about 17.0 ft (16.8–17.3 ft). 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 Mathugama worked out?: From the nearest river gauge ({gauge}, 14 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.

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