Mahaweli flood watch

Peradeniya · Nawalapitiya · Kotmale reservoir — the upper Mahaweli

Updated
2026-09-24 03:30 SLST
0h 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

3.76m

▼ 0.09 m/h · +0.08 in 24h

1.24 m below Alert · higher than 85.8% of its history

Alert 5Minor 7Major 9

19 Sep 00:30 → 24 Sep 03:30 SLST

3.4%Alert<5%Minor<5%Major

chance of reaching each level within 24h · from 58 past readings in this state (level + trend)

Nawalapitiya

calm

2.40m

▼ 0.04 m/h · +0.06 in 24h

1.10 m below Alert · higher than 92% of its history

Alert 3.5Minor 5Major 6

19 Sep 00:30 → 24 Sep 03:30 SLST

1.9%Alert<6%Minor<6%Major

chance of reaching each level within 24h · from 53 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
Urawa	3.02 m ▲	2.5	alert	57.9% n=57
Tawalama	4.60 m ▲	4	alert	73.3% n=131
Baddegama	3.90 m ▲	3.5	alert	100% n=131
Magura	4.10 m ▲	4	alert	98.1% n=106
Panadugama	5.09 m ▲	5	alert	91.5% n=925
Thalgahagoda	1.38 m ▲	1.4	watch	15.3% n=124
Putupaula	2.65 m ▼	3	watch	2.4% n=42
Kithulgala	2.58 m ▲	3	watch	26.7% n=30
Glencourse	12.76 m ▲	15	watch	4.5% n=89
Ratnapura	4.35 m ▲	5.2	watch	30.3% n=33

Station

Level

Alert

24h Alert risk

Urawa

3.02 m ▲

2.5

alert

57.9% n=57

Tawalama

4.60 m ▲

alert

73.3% n=131

Baddegama

3.90 m ▲

3.5

alert

100% n=131

Magura

4.10 m ▲

alert

98.1% n=106

Panadugama

5.09 m ▲

alert

91.5% n=925

Thalgahagoda

1.38 m ▲

1.4

watch

15.3% n=124

Putupaula

2.65 m ▼

watch

2.4% n=42

Kithulgala

2.58 m ▲

watch

26.7% n=30

Glencourse

12.76 m ▲

watch

4.5% n=89

Ratnapura

4.35 m ▲

5.2

watch

30.3% n=33

Station	Level	Alert		24h Alert risk
Urawa	3.02 m ▲	2.5	alert	57.9% n=57
Tawalama	4.60 m ▲	4	alert	73.3% n=131
Baddegama	3.90 m ▲	3.5	alert	100% n=131
Magura	4.10 m ▲	4	alert	98.1% n=106
Panadugama	5.09 m ▲	5	alert	91.5% n=925
Thalgahagoda	1.38 m ▲	1.4	watch	15.3% n=124
Putupaula	2.65 m ▼	3	watch	2.4% n=42
Kithulgala	2.58 m ▲	3	watch	26.7% n=30
Glencourse	12.76 m ▲	15	watch	4.5% n=89
Ratnapura	4.35 m ▲	5.2	watch	30.3% n=33
Ellagawa	7.82 m ▲	10	calm	<3% n=91
Norwood	1.16 m ▲	1.5	calm	4.3% n=47
Dunamale	2.45 m	3.3	calm	8.9% n=79
Hanwella	4.66 m ▲	6.5	calm	4.1% n=49
Pitabeddara	2.86 m ▲	4	calm	4.7% n=193
N' Street	2.70 ft	4	calm	7.9% n=38
Badalgama	2.59 m	5	calm	0.9% n=345
Holombuwa	1.50 m ▼	3	calm	5.8% n=207
Deraniyagala	1.81 m ▼	4.8	calm	0.7% n=569
Moraketiya	0.90 m ▲	3	calm	0.5% n=838
Thanamalwila	1.11 m	4	calm	0.2% n=570
Horowpothana	1.66 m	6	calm	<1% n=527
Giriulla	1.42 m ▲	5.5	calm	0.2% n=463
Wellawaya	0.95 m	4.4	calm	<0% n=674
Kuda Oya	1.00 m	6.9	calm	<0% n=699
Nakkala	0.54 m	5	calm	0.2% n=653
Moragaswewa	0.39 m	4.75	calm	2.4% n=331
Thaldena	0.14 m	3	calm	0.2% n=611
Siyambalanduwa	0.14 m	4.5	calm	<0% n=663
Padiyathalawa	0.08 m	4	calm	0.3% n=645
Katharagama	-0.25 m	4	calm	—
Manampitiya	-0.26 m	3	calm	—

Station

Level

Alert

24h Alert risk

Urawa

3.02 m ▲

2.5

alert

57.9% n=57

Tawalama

4.60 m ▲

alert

73.3% n=131

Baddegama

3.90 m ▲

3.5

alert

100% n=131

Magura

4.10 m ▲

alert

98.1% n=106

Panadugama

5.09 m ▲

alert

91.5% n=925

Thalgahagoda

1.38 m ▲

1.4

watch

15.3% n=124

Putupaula

2.65 m ▼

watch

2.4% n=42

Kithulgala

2.58 m ▲

watch

26.7% n=30

Glencourse

12.76 m ▲

watch

4.5% n=89

Ratnapura

4.35 m ▲

5.2

watch

30.3% n=33

Ellagawa

7.82 m ▲

calm

<3% n=91

Norwood

1.16 m ▲

1.5

calm

4.3% n=47

Dunamale

2.45 m

3.3

calm

8.9% n=79

Hanwella

4.66 m ▲

6.5

calm

4.1% n=49

Pitabeddara

2.86 m ▲

calm

4.7% n=193

N' Street

2.70 ft

calm

7.9% n=38

Badalgama

2.59 m

calm

0.9% n=345

Holombuwa

1.50 m ▼

calm

5.8% n=207

Deraniyagala

1.81 m ▼

4.8

calm

0.7% n=569

Moraketiya

0.90 m ▲

calm

0.5% n=838

Thanamalwila

1.11 m

calm

0.2% n=570

Horowpothana

1.66 m

calm

<1% n=527

Giriulla

1.42 m ▲

5.5

calm

0.2% n=463

Wellawaya

0.95 m

4.4

calm

<0% n=674

Kuda Oya

1.00 m

6.9

calm

<0% n=699

Nakkala

0.54 m

calm

0.2% n=653

Moragaswewa

0.39 m

4.75

calm

2.4% n=331

Thaldena

0.14 m

calm

0.2% n=611

Siyambalanduwa

0.14 m

4.5

calm

<0% n=663

Padiyathalawa

0.08 m

calm

0.3% n=645

Katharagama

-0.25 m

calm

—

Manampitiya

-0.26 m

calm

—

Mahaweli flood watch

Other stations near or above Alert