Peradeniya · Nawalapitiya · Kotmale reservoir — the upper Mahaweli
Updated 19:08 SLST · hourly feed · under an hour ago
Peak 14.80 m on 28 Nov 2025, 06:30 SLST — 3.0× Alert, 1.6× Major. Today's 4.00 is 27% of it.
14 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. The gauge then reported nothing for 46 consecutive reports — so this peak is the last reading before it went silent, not necessarily the crest.
Peak 6.69 m on 28 Nov 2025, 03:30 SLST — 1.9× Alert, 1.1× Major. Today's 2.71 is 41% of it.
28 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood.
Tap a station for its chart and base rates.
| Station | Level | Alert | Next level, 24h | |
|---|---|---|---|---|
| 1.91 m ▲ | 1.4 | Minor floodMinor | 4.7% Major · n=549 | |
1.91m
19:15 SLST · hourly feed
▲ 0.01 m/h · +0.21 in 24h
0.51 m above Alert · higher than 85.9% of its history
Alert 1.4Minor 1.7Major 2.8
20 Sep 20:07 → 25 Sep 19:15 SLST · shaded: usually, this time of year 0.54–2.68 m, median 1.76 (n=202)
98.9%Alert63.2%Minor4.7%Major chance of reaching each level within 24h · from 549 past readings in this state (level + trend)
For reference: Cyclone Ditwah, Nov 2025Peak 1.70 m on 27 Nov 2025, 12:30 SLST — 1.2× Alert. Today's 1.91 is 112% of it. 26 Nov 00:30 → 3 Dec 21:30 SLST 57 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. | ||||
| 4.75 m | 3.5 | Minor floodMinor | 10.3% Major · n=436 | |
4.75m
19:08 SLST · hourly feed
→ steady · +0.27 in 24h
1.25 m above Alert · higher than 96.7% of its history
Alert 3.5Minor 4Major 5
20 Sep 20:09 → 25 Sep 19:08 SLST · shaded: usually, this time of year 2.59–4.84 m, median 4.18 (n=309)
97.7%Alert70.2%Minor10.3%Major chance of reaching each level within 24h · from 436 past readings in this state (level + trend)
For reference: Cyclone Ditwah, Nov 2025Peak 3.64 m on 26 Nov 2025, 09:30 SLST — 1.0× Alert. Today's 4.75 is 130% of it. 26 Nov 00:30 → 3 Dec 21:30 SLST 58 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. | ||||
| 6.35 m ▼ | 5 | Minor floodMinor | 2.4% Major · n=337 | |
6.35m
19:05 SLST · hourly feed
▼ 0.03 m/h · -0.41 in 24h
1.35 m above Alert · higher than 90% of its history
Alert 5Minor 6Major 7.5
20 Sep 20:06 → 25 Sep 19:05 SLST · shaded: usually, this time of year 3.79–6.84 m, median 5.86 (n=310)
91.7%Alert35.6%Minor2.4%Major chance of reaching each level within 24h · from 337 past readings in this state (level + trend)
For reference: Cyclone Ditwah, Nov 2025Peak 5.60 m on 27 Nov 2025, 06:30 SLST — 1.1× Alert. Today's 6.35 is 113% of it. 26 Nov 00:30 → 3 Dec 21:30 SLST 58 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. | ||||
| 4.79 m ▼ | 4 | Alert | 5.4% Minor · n=93 | |
4.79m
19:04 SLST · hourly feed
▼ 0.02 m/h · -0.23 in 24h
0.79 m above Alert · higher than 86.5% of its history
Alert 4Minor 6Major 7.5
20 Sep 20:03 → 25 Sep 19:04 SLST · shaded: usually, this time of year 2.35–5.25 m, median 4.05 (n=201)
95.7%Alert5.4%Minor<3%Major chance of reaching each level within 24h · from 93 past readings in this state (level + trend)
For reference: Cyclone Ditwah, Nov 2025Peak 5.46 m on 28 Nov 2025, 21:30 SLST — 1.4× Alert. Today's 4.79 is 88% of it. 26 Nov 00:30 → 3 Dec 21:30 SLST 58 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. | ||||
| 6.02 m ▼ | 5.2 | Alert | 10.1% Minor · n=199 | |
6.02m
19:01 SLST · hourly feed
▼ 0.06 m/h · +0.09 in 24h
0.82 m above Alert · higher than 90.5% of its history
Alert 5.2Minor 7.5Major 9.5
20 Sep 20:09 → 25 Sep 19:01 SLST · shaded: usually, this time of year 1.43–6.10 m, median 3.70 (n=299)
88.4%Alert10.1%Minor<2%Major chance of reaching each level within 24h · from 199 past readings in this state (level + trend)
For reference: Cyclone Ditwah, Nov 2025Peak 10.12 m on 28 Nov 2025, 21:30 SLST — 1.9× Alert, 1.1× Major. Today's 6.02 is 59% of it. 26 Nov 00:30 → 3 Dec 21:30 SLST 56 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. | ||||
| Station | Level | Alert | Next level, 24h | |
|---|---|---|---|---|
| 2.97 m ▼ | 3 | Normal | 32.5% Alert · n=40 | |
2.97m
19:10 SLST · hourly feed
▼ 0.12 m/h · -0.78 in 24h
0.03 m below Alert · higher than 97.8% of its history
Alert 3Minor 4Major 6
20 Sep 20:04 → 25 Sep 19:10 SLST · shaded: usually, this time of year 1.66–2.29 m, median 1.86 (n=259)
32.5%Alert2.5%Minor2.5%Major chance of reaching each level within 24h · from 40 past readings in this state (level + trend)
For reference: Cyclone Ditwah, Nov 2025Peak 6.48 m on 28 Nov 2025, 12:30 SLST — 2.2× Alert, 1.1× Major. Today's 2.97 is 46% of it. 26 Nov 00:30 → 3 Dec 21:30 SLST 58 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. | ||||
| 2.82 m ▲ | 3 | Normal | 6.4% Alert · n=236 | |
2.82m
19:15 SLST · hourly feed
▲ 0.01 m/h · 0.18 m below Alert · +0.15 in 24h
0.18 m below Alert · higher than 72.7% of its history
Alert 3Minor 4Major 5
20 Sep 20:08 → 25 Sep 19:15 SLST · shaded: usually, this time of year 1.05–3.74 m, median 2.82 (n=309)
6.4%Alert<1%Minor<1%Major chance of reaching each level within 24h · from 236 past readings in this state (level + trend)
For reference: Cyclone Ditwah, Nov 2025Peak 4.29 m on 1 Dec 2025, 00:30 SLST — 1.4× Alert. Today's 2.82 is 66% of it. 26 Nov 00:30 → 3 Dec 21:30 SLST 58 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. | ||||
| 5.94 m ▼ | 6.5 | Normal | 1.7% Alert · n=121 | |
5.94m
19:04 SLST · hourly feed
▼ 0.10 m/h · +0.44 in 24h
0.56 m below Alert · higher than 84.4% of its history
Alert 6.5Minor 7.5Major 9.5
20 Sep 20:02 → 25 Sep 19:04 SLST · shaded: usually, this time of year 1.87–5.93 m, median 4.43 (n=267)
1.7%Alert<2%Minor<2%Major chance of reaching each level within 24h · from 121 past readings in this state (level + trend)
For reference: Cyclone Ditwah, Nov 2025Peak 10.95 m on 30 Nov 2025, 00:30 SLST — 1.6× Alert, 1.1× Major. Today's 5.94 is 54% of it. 26 Nov 00:30 → 3 Dec 21:30 SLST 58 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. | ||||
| 13.61 m ▼ | 15 | Normal | 4.6% Alert · n=281 | |
13.61m
19:03 SLST · hourly feed
▼ 0.04 m/h · -0.39 in 24h
1.39 m below Alert · higher than 87.2% of its history
Alert 15Minor 15.5Major 19
20 Sep 20:04 → 25 Sep 19:03 SLST · shaded: usually, this time of year 10.06–13.63 m, median 11.76 (n=267)
4.6%Alert1.4%Minor<1%Major chance of reaching each level within 24h · from 281 past readings in this state (level + trend)
For reference: Cyclone Ditwah, Nov 2025Peak 21.90 m on 29 Nov 2025, 00:30 SLST — 1.5× Alert, 1.2× Major. Today's 13.61 is 62% of it. 26 Nov 00:30 → 3 Dec 21:30 SLST 58 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. | ||||
| 1.36 m | 1.5 | Normal | 22.3% Alert · n=103 | |
1.36m
19:02 SLST · hourly feed
→ steady · -0.12 in 24h
0.14 m below Alert · higher than 90.3% of its history
Alert 1.5Minor 3Major 4.5
20 Sep 20:02 → 25 Sep 19:02 SLST · shaded: usually, this time of year 0.65–1.25 m, median 0.91 (n=267)
22.3%Alert<3%Minor<3%Major chance of reaching each level within 24h · from 103 past readings in this state (level + trend)
For reference: Cyclone Ditwah, Nov 2025Peak 3.60 m on 28 Nov 2025, 03:30 SLST — 2.4× Alert. Today's 1.36 is 38% of it. 26 Nov 00:30 → 3 Dec 21:30 SLST 51 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. | ||||
| 8.91 m ▲ | 10 | Normal | 22.7% Alert · n=185 | |
8.91m
19:02 SLST · hourly feed
▲ 0.05 m/h · 1.09 m below Alert · +0.66 in 24h
1.09 m below Alert · higher than 81.3% of its history
Alert 10Minor 10.7Major 12.2
20 Sep 20:03 → 25 Sep 19:02 SLST · shaded: usually, this time of year 5.67–9.64 m, median 7.99 (n=307)
22.7%Alert2.2%Minor0.5%Major chance of reaching each level within 24h · from 185 past readings in this state (level + trend)
For reference: Cyclone Ditwah, Nov 2025Peak 12.01 m on 29 Nov 2025, 21:30 SLST — 1.2× Alert. Today's 8.91 is 74% of it. 26 Nov 00:30 → 3 Dec 21:30 SLST 40 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. | ||||
| 3.50 m | 4 | Normal | 17.9% Alert · n=56 | |
3.50m
19:01 SLST · hourly feed
→ steady · -1.68 in 24h
0.50 m below Alert · higher than 90% of its history
Alert 4Minor 6Major 7.5
20 Sep 20:05 → 25 Sep 19:01 SLST · shaded: usually, this time of year 1.95–4.30 m, median 2.79 (n=299)
17.9%Alert5.4%Minor<5%Major chance of reaching each level within 24h · from 56 past readings in this state (level + trend)
For reference: Cyclone Ditwah, Nov 2025Peak 4.12 m on 28 Nov 2025, 12:30 SLST — 1.0× Alert. Today's 3.50 is 85% of it. 26 Nov 00:30 → 3 Dec 21:30 SLST 58 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. | ||||
| 2.80 m ▲ | 3.3 | Normal | 42.1% Alert · n=38 | |
2.80m
19:04 SLST · hourly feed
▲ 0.07 m/h · 0.50 m below Alert · -0.26 in 24h
0.50 m below Alert · higher than 56.7% of its history
Alert 3.3Minor 4.4Major 5.5
20 Sep 20:02 → 25 Sep 19:04 SLST · shaded: usually, this time of year 1.47–4.57 m, median 3.33 (n=275)
42.1%Alert13.2%Minor<8%Major chance of reaching each level within 24h · from 38 past readings in this state (level + trend)
For reference: Cyclone Ditwah, Nov 2025Peak 7.04 m on 29 Nov 2025, 06:30 SLST — 2.1× Alert, 1.3× Major. Today's 2.80 is 40% of it. 26 Nov 00:30 → 3 Dec 21:30 SLST 58 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. | ||||
| 3.00 ft ▼ | 4 | Normal | 8.4% Alert · n=154 | |
3.00ft
19:03 SLST · hourly feed
▼ 0.18 ft/h · +0.70 in 24h
1.00 ft below Alert · higher than 77.4% of its history
Alert 4Minor 5Major 7
20 Sep 20:05 → 25 Sep 19:03 SLST · shaded: usually, this time of year 1.10–3.60 ft, median 2.60 (n=258)
8.4%Alert<2%Minor<2%Major chance of reaching each level within 24h · from 154 past readings in this state (level + trend)
For reference: Cyclone Ditwah, Nov 2025Peak 8.50 ft on 1 Dec 2025, 12:30 SLST — 2.1× Alert, 1.2× Major. Today's 3.00 is 35% of it. 26 Nov 00:30 → 3 Dec 21:30 SLST 58 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. | ||||
| 3.10 m | 5 | Normal | 1.1% Alert · n=187 | |
3.10m
19:05 SLST · hourly feed
→ steady · +0.07 in 24h
1.90 m below Alert · higher than 58.9% of its history
Alert 5Minor 6.2Major 9.6
20 Sep 20:06 → 25 Sep 19:05 SLST · shaded: usually, this time of year 1.74–3.55 m, median 2.93 (n=230)
1.1%Alert<2%Minor<2%Major chance of reaching each level within 24h · from 187 past readings in this state (level + trend)
For reference: Cyclone Ditwah, Nov 2025Peak 13.46 m on 29 Nov 2025, 09:30 SLST — 2.7× Alert, 1.4× Major. Today's 3.10 is 23% of it. 26 Nov 00:30 → 3 Dec 21:30 SLST 52 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. | ||||
| 2.39 m | 4 | Normal | 0.7% Alert · n=143 | |
2.39m
19:04 SLST · hourly feed
→ steady · -1.06 in 24h
1.61 m below Alert · higher than 88.4% of its history
Alert 4Minor 5Major 6.5
20 Sep 20:03 → 25 Sep 19:04 SLST · shaded: usually, this time of year 0.74–3.09 m, median 1.95 (n=309)
0.7%Alert<2%Minor<2%Major chance of reaching each level within 24h · from 143 past readings in this state (level + trend)
For reference: Cyclone Ditwah, Nov 2025Peak 2.77 m on 27 Nov 2025, 00:30 SLST — 0.7× Alert. Today's 2.39 is 86% of it. 26 Nov 00:30 → 3 Dec 21:30 SLST 58 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. | ||||
| 2.46 m ▲ | 4.8 | Normal | 2.5% Alert · n=40 | |
2.46m
19:04 SLST · hourly feed
▲ 0.26 m/h · 2.34 m below Alert · -1.94 in 24h
2.34 m below Alert · higher than 93.4% of its history
Alert 4.8Minor 5.8Major 7
20 Sep 20:03 → 25 Sep 19:04 SLST · shaded: usually, this time of year 0.81–2.32 m, median 1.45 (n=266)
2.5%Alert<8%Minor<8%Major chance of reaching each level within 24h · from 40 past readings in this state (level + trend)
For reference: Cyclone Ditwah, Nov 2025Peak 8.55 m on 28 Nov 2025, 12:30 SLST — 1.8× Alert, 1.3× Major. Today's 2.46 is 29% of it. 26 Nov 00:30 → 3 Dec 21:30 SLST 58 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. | ||||
| 1.25 m ▼ | 2.5 | Normal | 5.9% Alert · n=136 | |
1.25m
19:13 SLST · hourly feed
▼ 0.03 m/h · -0.56 in 24h
1.25 m below Alert · higher than 81.5% of its history
Alert 2.5Minor 4Major 6
20 Sep 20:06 → 25 Sep 19:13 SLST · shaded: usually, this time of year 0.23–1.84 m, median 1.11 (n=307)
5.9%Alert2.9%Minor<2%Major chance of reaching each level within 24h · from 136 past readings in this state (level + trend)
For reference: Cyclone Ditwah, Nov 2025Peak 2.97 m on 26 Nov 2025, 21:30 SLST — 1.2× Alert. Today's 1.25 is 42% of it. 26 Nov 03:30 → 3 Dec 21:30 SLST 57 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. | ||||
| 1.30 m ▲ | 3 | Normal | 4.4% Alert · n=91 | |
1.30m
19:04 SLST · hourly feed
▲ 0.05 m/h · 1.70 m below Alert · -1.30 in 24h
1.70 m below Alert · higher than 71.5% of its history
Alert 3Minor 4Major 6
20 Sep 20:08 → 25 Sep 19:04 SLST · shaded: usually, this time of year 0.47–1.73 m, median 1.07 (n=267)
4.4%Alert3.3%Minor1.1%Major chance of reaching each level within 24h · from 91 past readings in this state (level + trend)
For reference: Cyclone Ditwah, Nov 2025Peak 7.27 m on 28 Nov 2025, 06:30 SLST — 2.4× Alert, 1.5× Major. Today's 1.30 is 18% of it. 26 Nov 00:30 → 3 Dec 21:30 SLST 52 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. | ||||
| 1.18 m ▼ | 3 | Normal | 2.1% Alert · n=48 | |
1.18m
19:04 SLST · hourly feed
▼ 0.03 m/h · -0.24 in 24h
1.82 m below Alert · higher than 68.4% of its history
Alert 3Minor 5Major 7
20 Sep 20:00 → 25 Sep 19:04 SLST · shaded: usually, this time of year 0.55–1.20 m, median 0.76 (n=108)
2.1%Alert<6%Minor<6%Major chance of reaching each level within 24h · from 48 past readings in this state (level + trend)
For reference: Cyclone Ditwah, Nov 2025Peak 4.78 m on 28 Nov 2025, 12:30 SLST — 1.6× Alert. Today's 1.18 is 25% of it. 26 Nov 00:30 → 3 Dec 21:30 SLST 58 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. | ||||
| 1.98 m ▼ | 5.5 | Normal | 0.2% Alert · n=466 | |
1.98m
19:03 SLST · hourly feed
▼ 0.04 m/h · -0.15 in 24h
3.52 m below Alert · higher than 61.2% of its history
Alert 5.5Minor 6.5Major 7.5
20 Sep 20:04 → 25 Sep 19:03 SLST · shaded: usually, this time of year 0.89–2.46 m, median 1.77 (n=224)
0.2%Alert<1%Minor<1%Major chance of reaching each level within 24h · from 466 past readings in this state (level + trend)
For reference: Cyclone Ditwah, Nov 2025Peak 12.54 m on 29 Nov 2025, 06:30 SLST — 2.3× Alert, 1.7× Major. Today's 1.98 is 16% of it. 26 Nov 00:30 → 3 Dec 21:30 SLST 51 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. | ||||
| 1.13 m | 4 | Normal | 0.2% Alert · n=582 | |
1.13m
19:02 SLST · hourly feed
→ steady · +0.03 in 24h
2.87 m below Alert · higher than 65.4% of its history
Alert 4Minor 5Major 5.5
20 Sep 20:01 → 25 Sep 19:02 SLST · shaded: usually, this time of year -0.19–1.13 m, median 0.69 (n=128)
0.2%Alert0.2%Minor<1%Major chance of reaching each level within 24h · from 582 past readings in this state (level + trend)
For reference: Cyclone Ditwah, Nov 2025Peak 5.52 m on 27 Nov 2025, 12:30 SLST — 1.4× Alert, 1.0× Major. Today's 1.13 is 20% of it. 26 Nov 00:30 → 3 Dec 21:30 SLST 58 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. | ||||
| 1.64 m | 6 | Normal | <1% Alert · n=539 | |
1.64m
19:12 SLST · hourly feed
→ steady · +0.00 in 24h
4.36 m below Alert · higher than 43.8% of its history
Alert 6Minor 7.5Major 10.5
20 Sep 20:01 → 25 Sep 19:12 SLST · shaded: usually, this time of year 1.22–1.82 m, median 1.62 (n=129)
<1%Alert<1%Minor<1%Major chance of reaching each level within 24h · from 539 past readings in this state (level + trend)
For reference: Cyclone Ditwah, Nov 2025Peak 8.39 m on 28 Nov 2025, 12:30 SLST — 1.4× Alert. Today's 1.64 is 20% of it. 26 Nov 00:30 → 3 Dec 21:30 SLST 55 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. | ||||
| 1.05 m | 4.4 | Normal | <0% Alert · n=686 | |
1.05m
19:00 SLST · hourly feed
→ steady · +0.11 in 24h
3.35 m below Alert · higher than 66.5% of its history
Alert 4.4Minor 5.4Major 5.9
20 Sep 20:02 → 25 Sep 19:00 SLST · shaded: usually, this time of year 0.42–1.08 m, median 0.73 (n=138)
<0%Alert<0%Minor<0%Major chance of reaching each level within 24h · from 686 past readings in this state (level + trend)
For reference: Cyclone Ditwah, Nov 2025Peak 3.18 m on 27 Nov 2025, 09:30 SLST — 0.7× Alert. Today's 1.05 is 33% of it. 26 Nov 00:30 → 3 Dec 21:30 SLST 58 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. | ||||
| 1.01 m | 6.9 | Normal | <0% Alert · n=711 | |
1.01m
19:01 SLST · hourly feed
→ steady · -0.01 in 24h
5.89 m below Alert · higher than 11.4% of its history
Alert 6.9Minor 8.4Major 8.8
20 Sep 20:01 → 25 Sep 19:01 SLST · shaded: usually, this time of year 0.93–1.35 m, median 1.04 (n=138)
<0%Alert<0%Minor<0%Major chance of reaching each level within 24h · from 711 past readings in this state (level + trend)
For reference: Cyclone Ditwah, Nov 2025Peak 5.55 m on 27 Nov 2025, 09:30 SLST — 0.8× Alert. Today's 1.01 is 18% of it. 26 Nov 00:30 → 3 Dec 21:30 SLST 58 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. | ||||
| 0.53 m | 5 | Normal | 0.2% Alert · n=665 | |
0.53m
19:00 SLST · hourly feed
→ steady · -0.01 in 24h
4.47 m below Alert · higher than 2.6% of its history
Alert 5Minor 6Major 7.5
20 Sep 20:02 → 25 Sep 19:00 SLST · shaded: usually, this time of year 0.53–0.82 m, median 0.58 (n=138)
0.2%Alert<0%Minor<0%Major chance of reaching each level within 24h · from 665 past readings in this state (level + trend)
For reference: Cyclone Ditwah, Nov 2025Peak 8.25 m on 27 Nov 2025, 06:30 SLST — 1.6× Alert, 1.1× Major. Today's 0.53 is 6% of it. 26 Nov 00:30 → 3 Dec 21:30 SLST 58 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. | ||||
| 0.41 m | 4 | Normal | 0.5% Alert · n=650 | |
0.41m
19:01 SLST · hourly feed
→ steady · +0.00 in 24h
3.59 m below Alert · higher than 15.1% of its history
Alert 4Minor 5Major 6
20 Sep 20:01 → 25 Sep 19:01 SLST · shaded: usually, this time of year 0.36–0.41 m, median 0.41 (n=110)
0.5%Alert0.5%Minor<0%Major chance of reaching each level within 24h · from 650 past readings in this state (level + trend)
For reference: Cyclone Ditwah, Nov 2025Peak 5.74 m on 27 Nov 2025, 18:30 SLST — 1.4× Alert. Today's 0.41 is 7% of it. 26 Nov 00:30 → 3 Dec 21:30 SLST 44 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. | ||||
| 0.39 m | 4.75 | Normal | 2.3% Alert · n=343 | |
0.39m
19:36 SLST · hourly feed
→ steady · -0.01 in 24h
4.36 m below Alert · higher than 24.5% of its history
Alert 4.75Minor 6Major 7
20 Sep 20:02 → 25 Sep 19:36 SLST · shaded: usually, this time of year -0.25–0.39 m, median 0.02 (n=69)
2.3%Alert<1%Minor<1%Major chance of reaching each level within 24h · from 343 past readings in this state (level + trend)
For reference: Cyclone Ditwah, Nov 2025Peak 8.33 m on 28 Nov 2025, 06:30 SLST — 1.8× Alert, 1.2× Major. Today's 0.39 is 5% of it. 26 Nov 00:30 → 28 Nov 06:30 SLST 14 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. The gauge then reported nothing for 46 consecutive reports — so this peak is the last reading before it went silent, not necessarily the crest. | ||||
| 0.38 m | 5 | Normal | <1% Alert · n=276 | |
0.38m
18:30 SLST · DMC report
→ steady · -0.03 in 24h
4.62 m below Alert · higher than 2.9% of its history
Alert 5Minor 6.8Major 7.8
21 Sep 07:01 → 25 Sep 18:30 SLST · shaded: usually, this time of year 0.31–0.78 m, median 0.42 (n=97)
<1%Alert<1%Minor<1%Major chance of reaching each level within 24h · from 276 past readings in this state (level + trend)
For reference: Cyclone Ditwah, Nov 2025Peak 10.86 m on 30 Nov 2025, 18:30 SLST — 2.2× Alert, 1.4× Major. Today's 0.38 is 3% of it. 26 Nov 00:30 → 3 Dec 21:30 SLST 39 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. | ||||
| 0.10 m ▼ | 3 | Normal | 0.2% Alert · n=621 | |
0.10m
19:02 SLST · hourly feed
▼ 0.09 m/h · -0.03 in 24h
2.90 m below Alert · higher than 2.3% of its history
Alert 3Minor 4Major 5
20 Sep 20:09 → 25 Sep 19:02 SLST · shaded: usually, this time of year 0.12–0.52 m, median 0.25 (n=130)
0.2%Alert<0%Minor<0%Major chance of reaching each level within 24h · from 621 past readings in this state (level + trend)
For reference: Cyclone Ditwah, Nov 2025Peak 4.20 m on 27 Nov 2025, 06:30 SLST — 1.4× Alert. Today's 0.10 is 2% of it. 26 Nov 00:30 → 3 Dec 18:30 SLST 15 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. The gauge then reported nothing for 1 consecutive reports — so this peak is the last reading before it went silent, not necessarily the crest. | ||||
| 0.13 m | 4.5 | Normal | <0% Alert · n=675 | |
0.13m
19:01 SLST · hourly feed
→ steady · -0.02 in 24h
4.37 m below Alert · higher than 1.6% of its history
Alert 4.5Minor 6Major 7
20 Sep 20:02 → 25 Sep 19:01 SLST · shaded: usually, this time of year 0.13–0.37 m, median 0.15 (n=138)
<0%Alert<0%Minor<0%Major chance of reaching each level within 24h · from 675 past readings in this state (level + trend)
For reference: Cyclone Ditwah, Nov 2025Peak 5.86 m on 26 Nov 2025, 21:30 SLST — 1.3× Alert. Today's 0.13 is 2% of it. 26 Nov 00:30 → 3 Dec 21:30 SLST 56 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. | ||||
| 0.03 m | 4 | Normal | 0.3% Alert · n=657 | |
0.03m
19:00 SLST · hourly feed
→ steady · -0.03 in 24h
3.97 m below Alert · higher than 2.6% of its history
Alert 4Minor 4.5Major 6
20 Sep 20:09 → 25 Sep 19:00 SLST · shaded: usually, this time of year 0.04–0.26 m, median 0.10 (n=130)
0.3%Alert0.3%Minor<0%Major chance of reaching each level within 24h · from 657 past readings in this state (level + trend)
For reference: Cyclone Ditwah, Nov 2025Peak 6.65 m on 27 Nov 2025, 18:30 SLST — 1.7× Alert, 1.1× Major. Today's 0.03 is 0% of it. 26 Nov 00:30 → 3 Dec 18:30 SLST 29 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. The gauge then reported nothing for 1 consecutive reports — so this peak is the last reading before it went silent, not necessarily the crest. | ||||
| 0.01 m | 4.84 | Normal | <1% Alert · n=227 | |
0.01m
18:30 SLST · DMC report
→ steady · -0.01 in 24h
4.83 m below Alert · higher than 13.3% of its history
Alert 4.84Minor 5.94Major 8
21 Sep 06:48 → 25 Sep 18:30 SLST · shaded: usually, this time of year -0.11–0.24 m, median -0.02 (n=109)
<1%Alert<1%Minor<1%Major chance of reaching each level within 24h · from 227 past readings in this state (level + trend)
For reference: Cyclone Ditwah, Nov 2025Peak 6.12 m on 27 Nov 2025, 18:30 SLST — 1.3× Alert. Today's 0.01 is 0% of it. 26 Nov 09:30 → 3 Dec 18:30 SLST 18 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. The gauge then reported nothing for 1 consecutive reports — so this peak is the last reading before it went silent, not necessarily the crest. | ||||
| -0.25 m | 4 | Normal | — | |
-0.25m
19:07 SLST · hourly feed
→ steady · -0.01 in 24h
4.25 m below Alert · higher than 14.2% of its history
Alert 4Minor 4.6Major 6.5
20 Sep 20:04 → 25 Sep 19:07 SLST · shaded: usually, this time of year -0.33–-0.23 m, median -0.27 (n=107)
No base rate — this state has only 0 matching readings in 8.3 years (need 30)
For reference: Cyclone Ditwah, Nov 2025Peak 7.60 m on 28 Nov 2025, 15:30 SLST — 1.9× Alert, 1.2× Major. Today's -0.25 is -3% of it. 26 Nov 00:30 → 3 Dec 21:30 SLST 58 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. | ||||
| -0.24 m ▲ | 3 | Normal | — | |
-0.24m
19:01 SLST · hourly feed
▲ 0.04 m/h · +0.03 in 24h
3.24 m below Alert · higher than 19.8% of its history
Alert 3Minor 4.3Major 6
20 Sep 20:01 → 25 Sep 19:01 SLST · shaded: usually, this time of year -1.40–-0.03 m, median -0.26 (n=138)
No base rate — this state has only 0 matching readings in 8.3 years (need 30)
For reference: Cyclone Ditwah, Nov 2025Peak 5.50 m on 27 Nov 2025, 18:30 SLST — 1.8× Alert. Today's -0.24 is -4% of it. 26 Nov 00:30 → 2 Dec 12:30 SLST 15 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. The gauge then reported nothing for 12 consecutive reports — so this peak is the last reading before it went silent, not necessarily the crest. | ||||
| -2.82 m | 5 | Normal | — | |
-2.82m
18:30 SLST · DMC report
→ steady · +0.34 in 24h
7.82 m below Alert · higher than 41.6% of its history
Alert 5Minor 6Major 8
21 Sep 06:01 → 25 Sep 18:30 SLST · shaded: usually, this time of year -3.14–-2.47 m, median -2.98 (n=113)
No base rate — this state has only 0 matching readings in 8.3 years (need 30)
For reference: Cyclone Ditwah, Nov 2025Peak 7.90 m on 27 Nov 2025, 12:30 SLST — 1.6× Alert. Today's -2.82 is -36% of it. 26 Nov 00:30 → 27 Nov 12:30 SLST 11 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood. The gauge then reported nothing for 49 consecutive reports — so this peak is the last reading before it went silent, not necessarily the crest. | ||||