Mahaweli flood watch

Peradeniya · Nawalapitiya · Kotmale reservoir — the upper Mahaweli
Updated
2026-09-24 06:30 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
3.28m
▼ 0.16 m/h · -0.40 in 24h
1.72 m below Alert · higher than 77.6% of its history
Alert 5Minor 7Major 9
20 Sep21 Sep22 Sep23 Sep24 Sep
19 Sep 00:30 → 24 Sep 06:30 SLST
3.4%Alert<5%Minor<5%Major
chance of reaching each level within 24h · from 59 past readings in this state (level + trend)

Nawalapitiya

watch
2.91m
▲ 0.17 m/h · Alert in ~3h at this rate · +0.57 in 24h
0.59 m below Alert · higher than 95.9% of its history
Alert 3.5Minor 5Major 6
20 Sep21 Sep22 Sep23 Sep24 Sep
19 Sep 00:30 → 24 Sep 06:30 SLST
17%Alert8.5%Minor2.1%Major
chance of reaching each level within 24h · from 47 past readings in this state (level only)
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.

Other stations near or above Alert

StationLevelAlert24h Alert risk
Urawa3.13 m ▲2.5alert58.6% n=58
Tawalama4.98 m ▲4alert73.5% n=132
Panadugama6.11 m ▲5minor flood91.5% n=926
Baddegama4.07 m ▲3.5minor flood100% n=132
Magura4.43 m ▲4alert98.1% n=107
Pitabeddara4.43 m ▲4alert72.7% n=55
Thalgahagoda1.40 m ▲1.4alert98.9% n=541
Ratnapura4.96 m ▲5.2watch16.9% n=302
Kithulgala2.77 m ▲3watch25.8% n=31
Putupaula2.63 m ▼3watch6.7% n=225
Glencourse12.81 m ▲15watch10% n=40
Norwood1.23 m ▲1.5watch48.8% n=41
All 34 stations in this report
StationLevelAlert24h Alert risk
Urawa3.13 m ▲2.5alert58.6% n=58
Tawalama4.98 m ▲4alert73.5% n=132
Panadugama6.11 m ▲5minor flood91.5% n=926
Baddegama4.07 m ▲3.5minor flood100% n=132
Magura4.43 m ▲4alert98.1% n=107
Pitabeddara4.43 m ▲4alert72.7% n=55
Thalgahagoda1.40 m ▲1.4alert98.9% n=541
Ratnapura4.96 m ▲5.2watch16.9% n=302
Kithulgala2.77 m ▲3watch25.8% n=31
Putupaula2.63 m ▼3watch6.7% n=225
Glencourse12.81 m ▲15watch10% n=40
Norwood1.23 m ▲1.5watch48.8% n=41
Ellagawa7.79 m ▼10calm<3% n=92
Dunamale2.48 m ▲3.3calm8.8% n=80
Hanwella4.69 m ▲6.5calm1.8% n=55
Badalgama2.61 m ▲5calm0.9% n=346
Holombuwa1.51 m3calm4.5% n=88
N' Street2.00 ft ▼4calm3.4% n=203
Deraniyagala1.90 m ▲4.8calm2.9% n=139
Moraketiya1.05 m ▲3calm0.5% n=839
Thanamalwila1.10 m4calm0.2% n=571
Horowpothana1.65 m6calm<1% n=528
Giriulla1.47 m ▲5.5calm0.2% n=464
Wellawaya0.91 m ▼4.4calm<0% n=675
Kuda Oya1.01 m6.9calm<0% n=700
Nakkala0.54 m5calm0.2% n=654
Yaka Wewa0.41 m4calm0.5% n=639
Moragaswewa0.39 m4.75calm2.4% n=332
Thaldena0.13 m3calm0.2% n=612
Siyambalanduwa0.14 m4.5calm<0% n=664
Padiyathalawa0.08 m4calm0.3% n=646
Katharagama-0.25 m4calm—
Manampitiya-0.21 m ▲3calm—
Weraganthota-3.13 m5calm—