Will Giriulla flood in the next hour?

Giriulla flood risk right now: Normal. This is an estimate based on the Giriulla gauge on the Maha Oya (under 1 km away), which read 16.4 ft as of Tue, 27 Oct, 3:03 am (Sri Lanka time). In the next hour the Maha Oya at Giriulla could fall to about 16.3 ft (16.1–16.4 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 Giriulla worked out?

From the nearest river gauge ({gauge}, under 1 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 Giriulla flooding?

Giriulla, Kurunegala

Giriulla flood risk right now: Normal. This is an estimate based on the Giriulla gauge on the Maha Oya (under 1 km away), which read 16.4 ft as of Tue, 27 Oct, 3:03 am (Sri Lanka time).

Reading at 3:03 am · 27 min ago

Normal

16.4 ft

Maha Oya at Giriulla is 16.4 ft, falling (near alert level)

Next hour

River falling

Next 24 hours

Check again in a few hours

Experimental estimate from the Giriulla river gauge, 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

Maha Oya at Giriulla is 16.4 ft, falling (near alert level)
77 mm of rain in the last 24 hours

Your river

Giriulla

Maha Oya · under 1 km away

Normal16.4 ft3:03 am

Is this right?

Each answer helps us improve the forecast for your area.

Based on: Giriulla gauge on the Maha Oya, under 1 km away

Set your street's flood level

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

Rain in Giriulla

Heavy rain in the last 24 hours (77 mm). Light rain expected this evening, about 4 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

In the Irrigation Department's maps of past floods (Maha Oya 2016), these Grama Niladhari divisions around Giriulla were partly or fully under water:

Malgamuwa2016
Marandagolla2016
Giriullagama2016
Maharagama2016
Puskoladeniya2016
Narangamuwa2016

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 Giriulla flooding now?: Giriulla flood risk right now: Normal. This is an estimate based on the Giriulla gauge on the Maha Oya (under 1 km away), which read 16.4 ft as of Tue, 27 Oct, 3:03 am (Sri Lanka time).
Will Giriulla flood in the next hour?: Giriulla flood risk right now: Normal. This is an estimate based on the Giriulla gauge on the Maha Oya (under 1 km away), which read 16.4 ft as of Tue, 27 Oct, 3:03 am (Sri Lanka time). In the next hour the Maha Oya at Giriulla could fall to about 16.3 ft (16.1–16.4 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 Giriulla worked out?: From the nearest river gauge ({gauge}, under 1 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.

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