Mahaweli flood watch

Peradeniya · Nawalapitiya · Kotmale reservoir — the upper Mahaweli
Updated
2026-09-23 15:30 SLST
newest report is 7h old — the feed may be down
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
2.80m
▼ 0.03 m/h · +0.00 in 24h
2.20 m below Alert · higher than 65% of its history
Alert 5Minor 7Major 9
19 Sep20 Sep21 Sep22 Sep23 Sep
18 Sep 00:30 → 23 Sep 15:30 SLST
5.1%Alert1.7%Minor0.8%Major
chance of reaching each level within 24h · from 118 past readings in this state (level + trend)

Nawalapitiya

calm
2.41m
▲ 0.02 m/h · +0.15 in 24h
1.09 m below Alert · higher than 92.2% of its history
Alert 3.5Minor 5Major 6
19 Sep20 Sep21 Sep22 Sep23 Sep
18 Sep 00:30 → 23 Sep 15:30 SLST
5.7%Alert1.4%Minor<2%Major
chance of reaching each level within 24h · from 141 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
Baddegama3.72 m ▼3.5alert97.7% n=428
Magura4.02 m ▼4alert95.5% n=89
Putupaula2.85 m ▼3watch6.7% n=224
Thalgahagoda1.29 m ▼1.4watch15.4% n=123
Panadugama4.31 m ▼5watch13.1% n=198
Glencourse12.68 m ▼15watch4.7% n=276
All 36 stations in this report
StationLevelAlert24h Alert risk
Baddegama3.72 m ▼3.5alert97.7% n=428
Magura4.02 m ▼4alert95.5% n=89
Putupaula2.85 m ▼3watch6.7% n=224
Thalgahagoda1.29 m ▼1.4watch15.4% n=123
Panadugama4.31 m ▼5watch13.1% n=198
Glencourse12.68 m ▼15watch4.7% n=276
Ellagawa7.96 m ▼10calm<1% n=209
Dunamale2.54 m ▼3.3calm10.3% n=97
Hanwella4.78 m ▼6.5calm1.9% n=54
Kithulgala2.20 m ▲3calm2% n=294
Ratnapura3.73 m ▼5.2calm8.6% n=185
N' Street2.75 ft ▼4calm8.7% n=150
Tawalama2.66 m ▲4calm13.5% n=74
Norwood0.88 m ▲1.5calm1.2% n=425
Badalgama2.67 m5calm0.9% n=344
Holombuwa1.16 m3calm0.5% n=549
Deraniyagala1.76 m ▲4.8calm2.9% n=138
Pitabeddara1.27 m ▲4calm<5% n=65
Urawa0.79 m ▲2.5calm3.6% n=55
Horowpothana1.67 m6calm<1% n=526
Thanamalwila1.09 m4calm0.2% n=569
Giriulla1.44 m ▼5.5calm0.2% n=462
Moraketiya0.78 m ▼3calm0.2% n=511
Wellawaya0.93 m ▲4.4calm<0% n=673
Kuda Oya1.03 m6.9calm<0% n=698
Nakkala0.54 m5calm0.2% n=652
Yaka Wewa0.41 m4calm0.5% n=638
Thanthirimale0.42 m5calm<1% n=271
Moragaswewa0.38 m4.75calm2.4% n=330
Thaldena0.17 m ▼3calm0.2% n=610
Siyambalanduwa0.14 m4.5calm<0% n=662
Padiyathalawa0.06 m4calm0.3% n=644
Galgamuwa0.06 m ▼4.84calm<1% n=222
Katharagama-0.27 m4calm—
Manampitiya-0.22 m3calm—
Weraganthota-3.02 m5calm—