Mahaweli flood watch

Peradeniya · Nawalapitiya · Kotmale reservoir — the upper Mahaweli

Updated
2026-09-24 09:30 SLST
1h ago

Unofficial. This page re-presents the Department of Meteorology / Disaster Management Centre's published river level reports; it is not issued by them and is not an official warning. Do not make an evacuation decision from this page. The official reports are at dmc.gov.lk, and the DMC emergency line in Sri Lanka is 117.

Peradeniya

calm

3.95m

▲ 0.22 m/h · Alert in ~5h at this rate · +0.43 in 24h

1.05 m below Alert · higher than 87.9% of its history

Alert 5Minor 7Major 9

19 Sep 00:30 → 24 Sep 09:30 SLST

5.2%Alert0.7%Minor0.7%Major

chance of reaching each level within 24h · from 270 past readings in this state (level only)

Nawalapitiya

calm

2.65m

▼ 0.09 m/h · +0.44 in 24h

0.85 m below Alert · higher than 93.7% of its history

Alert 3.5Minor 5Major 6

19 Sep 00:30 → 24 Sep 09:30 SLST

1.9%Alert<6%Minor<6%Major

chance of reaching each level within 24h · from 54 past readings in this state (level + trend)

Kotmale reservoir 57% full (+2.0 pts vs previous report) · 689.41 m asl · 13.6 m below FSL 703.0 · read 2026-09-23

Trend chart appears once there are 5 daily readings — 2 so far. Capture began 2026-09-22; the source publishes once a day and keeps no history.

Station	Level	Alert		24h Alert risk
Panadugama	6.57 m ▲	5	minor flood	91.5% n=927
Tawalama	5.22 m ▲	4	alert	73.7% n=133
Pitabeddara	4.83 m ▲	4	alert	73.2% n=56
Baddegama	4.21 m ▲	3.5	minor flood	100% n=133
Magura	4.65 m ▲	4	alert	98.1% n=108
Urawa	2.78 m ▼	2.5	alert	59.3% n=59
Thalgahagoda	1.55 m ▲	1.4	alert	100% n=48
Ratnapura	5.35 m ▲	5.2	alert	90.3% n=31
Putupaula	2.60 m ▼	3	watch	6.6% n=226
Glencourse	12.95 m ▲	15	watch	4.4% n=90
Norwood	1.28 m ▲	1.5	watch	20% n=100
Kithulgala	2.56 m ▼	3	watch	25% n=36

Station

Level

Alert

24h Alert risk

Panadugama

6.57 m ▲

minor flood

91.5% n=927

Tawalama

5.22 m ▲

alert

73.7% n=133

Pitabeddara

4.83 m ▲

alert

73.2% n=56

Baddegama

4.21 m ▲

3.5

minor flood

100% n=133

Magura

4.65 m ▲

alert

98.1% n=108

Urawa

2.78 m ▼

2.5

alert

59.3% n=59

Thalgahagoda

1.55 m ▲

1.4

alert

100% n=48

Ratnapura

5.35 m ▲

5.2

alert

90.3% n=31

Putupaula

2.60 m ▼

watch

6.6% n=226

Glencourse

12.95 m ▲

watch

4.4% n=90

Norwood

1.28 m ▲

1.5

watch

20% n=100

Kithulgala

2.56 m ▼

watch

25% n=36

Station	Level	Alert		24h Alert risk
Panadugama	6.57 m ▲	5	minor flood	91.5% n=927
Tawalama	5.22 m ▲	4	alert	73.7% n=133
Pitabeddara	4.83 m ▲	4	alert	73.2% n=56
Baddegama	4.21 m ▲	3.5	minor flood	100% n=133
Magura	4.65 m ▲	4	alert	98.1% n=108
Urawa	2.78 m ▼	2.5	alert	59.3% n=59
Thalgahagoda	1.55 m ▲	1.4	alert	100% n=48
Ratnapura	5.35 m ▲	5.2	alert	90.3% n=31
Putupaula	2.60 m ▼	3	watch	6.6% n=226
Glencourse	12.95 m ▲	15	watch	4.4% n=90
Norwood	1.28 m ▲	1.5	watch	20% n=100
Kithulgala	2.56 m ▼	3	watch	25% n=36
Ellagawa	7.83 m ▲	10	calm	<3% n=93
Dunamale	2.54 m ▲	3.3	calm	36.6% n=41
Hanwella	4.76 m ▲	6.5	calm	4% n=50
Holombuwa	1.71 m ▲	3	calm	10% n=60
N' Street	2.20 ft ▲	4	calm	1.3% n=79
Badalgama	2.67 m ▲	5	calm	2.5% n=40
Moraketiya	1.43 m ▲	3	calm	2.7% n=300
Deraniyagala	1.89 m	4.8	calm	0.7% n=570
Giriulla	1.66 m ▲	5.5	calm	1.6% n=63
Thanamalwila	1.10 m	4	calm	0.2% n=572
Horowpothana	1.65 m	6	calm	<1% n=529
Wellawaya	0.90 m	4.4	calm	<0% n=676
Kuda Oya	1.01 m	6.9	calm	<0% n=701
Nakkala	0.54 m	5	calm	0.2% n=655
Yaka Wewa	0.41 m	4	calm	0.5% n=640
Thanthirimale	0.42 m	5	calm	0.1% n=711
Moragaswewa	0.39 m	4.75	calm	2.4% n=333
Thaldena	0.16 m ▲	3	calm	0.2% n=613
Siyambalanduwa	0.13 m	4.5	calm	<0% n=665
Padiyathalawa	0.08 m	4	calm	0.3% n=647
Galgamuwa	0.03 m	4.84	calm	<0% n=772
Katharagama	-0.24 m	4	calm	—
Manampitiya	-0.23 m ▼	3	calm	—
Weraganthota	-3.14 m	5	calm	—

Station

Level

Alert

24h Alert risk

Panadugama

6.57 m ▲

minor flood

91.5% n=927

Tawalama

5.22 m ▲

alert

73.7% n=133

Pitabeddara

4.83 m ▲

alert

73.2% n=56

Baddegama

4.21 m ▲

3.5

minor flood

100% n=133

Magura

4.65 m ▲

alert

98.1% n=108

Urawa

2.78 m ▼

2.5

alert

59.3% n=59

Thalgahagoda

1.55 m ▲

1.4

alert

100% n=48

Ratnapura

5.35 m ▲

5.2

alert

90.3% n=31

Putupaula

2.60 m ▼

watch

6.6% n=226

Glencourse

12.95 m ▲

watch

4.4% n=90

Norwood

1.28 m ▲

1.5

watch

20% n=100

Kithulgala

2.56 m ▼

watch

25% n=36

Ellagawa

7.83 m ▲

calm

<3% n=93

Dunamale

2.54 m ▲

3.3

calm

36.6% n=41

Hanwella

4.76 m ▲

6.5

calm

4% n=50

Holombuwa

1.71 m ▲

calm

10% n=60

N' Street

2.20 ft ▲

calm

1.3% n=79

Badalgama

2.67 m ▲

calm

2.5% n=40

Moraketiya

1.43 m ▲

calm

2.7% n=300

Deraniyagala

1.89 m

4.8

calm

0.7% n=570

Giriulla

1.66 m ▲

5.5

calm

1.6% n=63

Thanamalwila

1.10 m

calm

0.2% n=572

Horowpothana

1.65 m

calm

<1% n=529

Wellawaya

0.90 m

4.4

calm

<0% n=676

Kuda Oya

1.01 m

6.9

calm

<0% n=701

Nakkala

0.54 m

calm

0.2% n=655

Yaka Wewa

0.41 m

calm

0.5% n=640

Thanthirimale

0.42 m

calm

0.1% n=711

Moragaswewa

0.39 m

4.75

calm

2.4% n=333

Thaldena

0.16 m ▲

calm

0.2% n=613

Siyambalanduwa

0.13 m

4.5

calm

<0% n=665

Padiyathalawa

0.08 m

calm

0.3% n=647

Galgamuwa

0.03 m

4.84

calm

<0% n=772

Katharagama

-0.24 m

calm

—

Manampitiya

-0.23 m ▼

calm

—

Weraganthota

-3.14 m

calm

—

Mahaweli flood watch

Other stations near or above Alert