Peradeniya · Nawalapitiya · Kotmale reservoir — the upper Mahaweli
Updated 21:02 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 4.47 is 30% 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 3.40 is 51% 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 | |
|---|---|---|---|---|
| 6.74 m ▼ | 5 | Minor floodMinor | 6.3% Major · n=268 | |
6.74m
21:14 SLST · hourly feed
▼ 0.01 m/h · +2.35 in 24h
1.74 m above Alert · higher than 95.3% of its history
Alert 5Minor 6Major 7.5
19 Sep 22:03 → 24 Sep 21:14 SLST · shaded: usually, this time of year 3.64–6.85 m, median 5.78 (n=293)
96.6%Alert52.2%Minor6.3%Major chance of reaching each level within 24h · from 268 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 6.74 is 120% 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. | ||||
| 4.52 m ▲ | 3.5 | Minor floodMinor | 16.3% Major · n=135 | |
4.52m
21:08 SLST · hourly feed
▲ 0.02 m/h · +0.85 in 24h
1.02 m above Alert · higher than 94.1% of its history
Alert 3.5Minor 4Major 5
19 Sep 22:03 → 24 Sep 21:08 SLST · shaded: usually, this time of year 2.52–4.86 m, median 4.11 (n=292)
100%Alert84.4%Minor16.3%Major chance of reaching each level within 24h · from 135 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 4.52 is 124% 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. | ||||
| 5.12 m ▼ | 4 | Alert | 13.7% Minor · n=51 | |
5.12m
21:02 SLST · hourly feed
▼ 0.02 m/h · +2.15 in 24h
1.12 m above Alert · higher than 97.4% of its history
Alert 4Minor 6Major 7.5
19 Sep 22:04 → 24 Sep 21:02 SLST · shaded: usually, this time of year 1.90–4.19 m, median 2.79 (n=282)
60.8%Alert13.7%Minor<6%Major chance of reaching each level within 24h · from 51 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 5.12 is 124% 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. | ||||
| 5.05 m ▲ | 4 | Alert | 15.5% Minor · n=110 | |
5.05m
21:02 SLST · hourly feed
▲ 0.01 m/h · +1.23 in 24h
1.05 m above Alert · higher than 89.9% of its history
Alert 4Minor 6Major 7.5
19 Sep 22:29 → 24 Sep 21:02 SLST · shaded: usually, this time of year 2.29–5.25 m, median 4.02 (n=189)
98.2%Alert15.5%Minor<3%Major chance of reaching each level within 24h · from 110 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 5.05 is 92% 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. | ||||
| 1.72 m | 1.4 | Minor floodMinor | 4.8% Major · n=543 | |
1.72m
21:10 SLST · hourly feed
→ steady · +0.45 in 24h
0.32 m above Alert · higher than 79.5% of its history
Alert 1.4Minor 1.7Major 2.8
19 Sep 22:08 → 24 Sep 21:10 SLST · shaded: usually, this time of year 0.47–2.68 m, median 1.69 (n=190)
98.9%Alert62.4%Minor4.8%Major chance of reaching each level within 24h · from 543 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 1.72 is 101% 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. | ||||
| 6.17 m ▲ | 5.2 | Alert | 28.1% Minor · n=32 | |
6.17m
21:04 SLST · hourly feed
▲ 0.15 m/h · +1.94 in 24h
0.97 m above Alert · higher than 92.3% of its history
Alert 5.2Minor 7.5Major 9.5
19 Sep 22:14 → 24 Sep 21:04 SLST · shaded: usually, this time of year 1.45–5.94 m, median 3.70 (n=282)
90.6%Alert28.1%Minor<9%Major chance of reaching each level within 24h · from 32 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 6.17 is 61% 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. | ||||
| 3.30 m ▼ | 3 | Alert | 28.6% Minor · n=42 | |
3.30m
21:08 SLST · hourly feed
▼ 0.24 m/h · +1.04 in 24h
0.30 m above Alert · higher than 98.9% of its history
Alert 3Minor 4Major 6
19 Sep 22:01 → 24 Sep 21:08 SLST · shaded: usually, this time of year 1.65–2.20 m, median 1.86 (n=242)
64.3%Alert28.6%Minor19%Major chance of reaching each level within 24h · from 42 past readings in this state (level only)
For reference: Cyclone Ditwah, Nov 2025Peak 6.48 m on 28 Nov 2025, 12:30 SLST — 2.2× Alert, 1.1× Major. Today's 3.30 is 51% 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. | ||||
| 1.55 m ▲ | 1.5 | Alert | 11.1% Minor · n=117 | |
1.55m
21:06 SLST · hourly feed
▲ 0.04 m/h · +0.65 in 24h
0.05 m above Alert · higher than 95.9% of its history
Alert 1.5Minor 3Major 4.5
19 Sep 22:02 → 24 Sep 21:06 SLST · shaded: usually, this time of year 0.65–1.19 m, median 0.90 (n=250)
76.1%Alert11.1%Minor4.3%Major chance of reaching each level within 24h · from 117 past readings in this state (level only)
For reference: Cyclone Ditwah, Nov 2025Peak 3.60 m on 28 Nov 2025, 03:30 SLST — 2.4× Alert. Today's 1.55 is 43% 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. | ||||
| Station | Level | Alert | Next level, 24h | |
|---|---|---|---|---|
| 3.16 m ▲ | 3.3 | Normal | 70% Alert · n=30 | |
3.16m
21:02 SLST · hourly feed
▲ 0.02 m/h · Alert in ~7h at this rate · +0.70 in 24h
0.14 m below Alert · higher than 61.8% of its history
Alert 3.3Minor 4.4Major 5.5
19 Sep 22:00 → 24 Sep 21:02 SLST · shaded: usually, this time of year 1.26–4.63 m, median 3.36 (n=258)
70%Alert20%Minor6.7%Major chance of reaching each level within 24h · from 30 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 3.16 is 45% 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. | ||||
| 14.21 m ▲ | 15 | Normal | 4.3% Alert · n=92 | |
14.21m
21:02 SLST · hourly feed
▲ 0.13 m/h · Alert in ~6h at this rate · +1.65 in 24h
0.79 m below Alert · higher than 90.4% of its history
Alert 15Minor 15.5Major 19
19 Sep 22:03 → 24 Sep 21:02 SLST · shaded: usually, this time of year 9.90–13.49 m, median 11.75 (n=250)
4.3%Alert3.3%Minor<3%Major chance of reaching each level within 24h · from 92 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 14.21 is 65% 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. | ||||
| 2.67 m | 3 | Normal | 6.6% Alert · n=228 | |
2.67m
21:07 SLST · hourly feed
→ steady · -0.09 in 24h
0.33 m below Alert · higher than 68.8% of its history
Alert 3Minor 4Major 5
19 Sep 22:06 → 24 Sep 21:07 SLST · shaded: usually, this time of year 1.03–3.80 m, median 2.84 (n=292)
6.6%Alert<1%Minor<1%Major chance of reaching each level within 24h · from 228 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 2.67 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. | ||||
| 5.67 m ▲ | 6.5 | Normal | 10.6% Alert · n=47 | |
5.67m
21:02 SLST · hourly feed
▲ 0.09 m/h · Alert in ~9h at this rate · +1.07 in 24h
0.83 m below Alert · higher than 80.7% of its history
Alert 6.5Minor 7.5Major 9.5
19 Sep 22:02 → 24 Sep 21:02 SLST · shaded: usually, this time of year 1.75–5.88 m, median 4.42 (n=250)
10.6%Alert2.1%Minor<6%Major chance of reaching each level within 24h · from 47 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 5.67 is 52% 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. | ||||
| 8.35 m ▲ | 10 | Normal | 23.5% Alert · n=179 | |
8.35m
21:03 SLST · hourly feed
▲ 0.07 m/h · Alert in ~24h at this rate · +0.53 in 24h
1.65 m below Alert · higher than 67.2% of its history
Alert 10Minor 10.7Major 12.2
19 Sep 22:01 → 24 Sep 21:03 SLST · shaded: usually, this time of year 5.57–9.69 m, median 8.02 (n=290)
23.5%Alert2.2%Minor0.6%Major chance of reaching each level within 24h · from 179 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 8.35 is 70% 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. | ||||
| 3.20 m ▼ | 4 | Normal | 5.8% Alert · n=52 | |
3.20m
21:05 SLST · hourly feed
▼ 0.12 m/h · +1.60 in 24h
0.80 m below Alert · higher than 96% of its history
Alert 4Minor 5Major 6.5
19 Sep 22:02 → 24 Sep 21:05 SLST · shaded: usually, this time of year 0.72–3.09 m, median 1.94 (n=292)
5.8%Alert<6%Minor<6%Major chance of reaching each level within 24h · from 52 past readings in this state (level only)
For reference: Cyclone Ditwah, Nov 2025Peak 2.77 m on 27 Nov 2025, 00:30 SLST — 0.7× Alert. Today's 3.20 is 116% 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. | ||||
| 2.39 m ▼ | 3 | Normal | 14.4% Alert · n=153 | |
2.39m
21:07 SLST · hourly feed
▼ 0.22 m/h · +1.03 in 24h
0.61 m below Alert · higher than 94.3% of its history
Alert 3Minor 4Major 6
19 Sep 22:04 → 24 Sep 21:07 SLST · shaded: usually, this time of year 0.43–1.73 m, median 1.05 (n=250)
14.4%Alert7.8%Minor2%Major chance of reaching each level within 24h · from 153 past readings in this state (level only)
For reference: Cyclone Ditwah, Nov 2025Peak 7.27 m on 28 Nov 2025, 06:30 SLST — 2.4× Alert, 1.5× Major. Today's 2.39 is 33% 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. | ||||
| 3.73 m ▼ | 4.8 | Normal | 17.9% Alert · n=56 | |
3.73m
21:03 SLST · hourly feed
▼ 0.61 m/h · +1.71 in 24h
1.07 m below Alert · higher than 98.1% of its history
Alert 4.8Minor 5.8Major 7
19 Sep 22:08 → 24 Sep 21:03 SLST · shaded: usually, this time of year 0.79–2.27 m, median 1.46 (n=249)
17.9%Alert8.9%Minor3.6%Major chance of reaching each level within 24h · from 56 past readings in this state (level only)
For reference: Cyclone Ditwah, Nov 2025Peak 8.55 m on 28 Nov 2025, 12:30 SLST — 1.8× Alert, 1.3× Major. Today's 3.73 is 44% 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. | ||||
| 1.72 m ▼ | 2.5 | Normal | 6.7% Alert · n=60 | |
1.72m
21:08 SLST · hourly feed
▼ 0.06 m/h · +0.54 in 24h
0.78 m below Alert · higher than 92.9% of its history
Alert 2.5Minor 4Major 6
19 Sep 22:13 → 24 Sep 21:08 SLST · shaded: usually, this time of year 0.19–1.87 m, median 1.11 (n=290)
6.7%Alert3.3%Minor<5%Major chance of reaching each level within 24h · from 60 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 1.72 is 58% 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. | ||||
| 3.08 m ▲ | 5 | Normal | 13.3% Alert · n=75 | |
3.08m
21:06 SLST · hourly feed
▲ 0.03 m/h · +0.46 in 24h
1.92 m below Alert · higher than 58.4% of its history
Alert 5Minor 6.2Major 9.6
19 Sep 22:04 → 24 Sep 21:06 SLST · shaded: usually, this time of year 1.74–3.53 m, median 2.88 (n=218)
13.3%Alert4%Minor<4%Major chance of reaching each level within 24h · from 75 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 3.08 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. | ||||
| 2.40 ft ▲ | 4 | Normal | 7.7% Alert · n=39 | |
2.40ft
21:05 SLST · hourly feed
▲ 0.10 ft/h · Alert in ~16h at this rate · +0.20 in 24h
1.60 ft below Alert · higher than 59.9% of its history
Alert 4Minor 5Major 7
19 Sep 22:05 → 24 Sep 21:05 SLST · shaded: usually, this time of year 1.00–3.60 ft, median 2.55 (n=241)
7.7%Alert2.6%Minor<8%Major chance of reaching each level within 24h · from 39 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 2.40 is 28% 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. | ||||
| 1.40 m ▼ | 3 | Normal | 1.1% Alert · n=91 | |
1.40m
21:00 SLST · hourly feed
▼ 0.02 m/h · +0.60 in 24h
1.60 m below Alert · higher than 80.4% of its history
Alert 3Minor 5Major 7
19 Sep 22:05 → 24 Sep 21:00 SLST · shaded: usually, this time of year 0.55–1.02 m, median 0.75 (n=102)
1.1%Alert<3%Minor<3%Major chance of reaching each level within 24h · from 91 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 1.40 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. | ||||
| 2.35 m ▲ | 5.5 | Normal | 8.2% Alert · n=49 | |
2.35m
21:02 SLST · hourly feed
▲ 0.07 m/h · Alert in ~44h at this rate · +0.95 in 24h
3.15 m below Alert · higher than 71.9% of its history
Alert 5.5Minor 6.5Major 7.5
19 Sep 22:06 → 24 Sep 21:02 SLST · shaded: usually, this time of year 0.88–2.43 m, median 1.66 (n=212)
8.2%Alert6.1%Minor6.1%Major chance of reaching each level within 24h · from 49 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 2.35 is 19% 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. | ||||
| 1.10 m | 4 | Normal | 0.2% Alert · n=574 | |
1.10m
21:04 SLST · hourly feed
→ steady · +0.00 in 24h
2.90 m below Alert · higher than 63% of its history
Alert 4Minor 5Major 5.5
19 Sep 22:02 → 24 Sep 21:04 SLST · shaded: usually, this time of year -0.21–1.13 m, median 0.41 (n=122)
0.2%Alert0.2%Minor<1%Major chance of reaching each level within 24h · from 574 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 1.10 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=531 | |
1.64m
21:07 SLST · hourly feed
→ steady · -0.02 in 24h
4.36 m below Alert · higher than 43.6% of its history
Alert 6Minor 7.5Major 10.5
19 Sep 22:07 → 24 Sep 21:07 SLST · shaded: usually, this time of year 1.20–1.82 m, median 1.52 (n=123)
<1%Alert<1%Minor<1%Major chance of reaching each level within 24h · from 531 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. | ||||
| 0.98 m ▲ | 4.4 | Normal | <0% Alert · n=678 | |
0.98m
21:00 SLST · hourly feed
▲ 0.02 m/h · +0.07 in 24h
3.42 m below Alert · higher than 60.5% of its history
Alert 4.4Minor 5.4Major 5.9
19 Sep 22:03 → 24 Sep 21:00 SLST · shaded: usually, this time of year 0.42–1.06 m, median 0.66 (n=132)
<0%Alert<0%Minor<0%Major chance of reaching each level within 24h · from 678 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 0.98 is 31% 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=703 | |
1.01m
21:01 SLST · hourly feed
→ steady · +0.02 in 24h
5.89 m below Alert · higher than 11.2% of its history
Alert 6.9Minor 8.4Major 8.8
19 Sep 22:05 → 24 Sep 21:01 SLST · shaded: usually, this time of year 0.90–1.31 m, median 1.04 (n=132)
<0%Alert<0%Minor<0%Major chance of reaching each level within 24h · from 703 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. | ||||
| 0.54 m | 5 | Normal | 0.2% Alert · n=657 | |
0.54m
21:07 SLST · hourly feed
→ steady · +0.00 in 24h
4.46 m below Alert · higher than 3.6% of its history
Alert 5Minor 6Major 7.5
19 Sep 22:02 → 24 Sep 21:07 SLST · shaded: usually, this time of year 0.53–0.85 m, median 0.58 (n=132)
0.2%Alert<0%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 8.25 m on 27 Nov 2025, 06:30 SLST — 1.6× Alert, 1.1× Major. Today's 0.54 is 7% 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=642 | |
0.41m
21:01 SLST · hourly feed
→ steady · +0.00 in 24h
3.59 m below Alert · higher than 14.6% of its history
Alert 4Minor 5Major 6
19 Sep 22:01 → 24 Sep 21:01 SLST · shaded: usually, this time of year 0.36–0.41 m, median 0.40 (n=105)
0.5%Alert0.5%Minor<0%Major chance of reaching each level within 24h · from 642 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. | ||||
| 0.40 m | 4.75 | Normal | 2.4% Alert · n=335 | |
0.40m
21:03 SLST · hourly feed
→ steady · +0.02 in 24h
4.35 m below Alert · higher than 24.8% of its history
Alert 4.75Minor 6Major 7
19 Sep 22:00 → 24 Sep 21:03 SLST · shaded: usually, this time of year -0.26–0.39 m, median -0.18 (n=62)
2.4%Alert<1%Minor<1%Major chance of reaching each level within 24h · from 335 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 0.40 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. | ||||
| 0.41 m | 5 | Normal | <1% Alert · n=273 | |
0.41m
18:04 SLST · hourly feed
→ steady · -0.01 in 24h
4.59 m below Alert · higher than 4.4% of its history
Alert 5Minor 6.8Major 7.8
20 Sep 07:01 → 24 Sep 18:04 SLST · shaded: usually, this time of year 0.31–0.76 m, median 0.42 (n=95)
<1%Alert<1%Minor<1%Major chance of reaching each level within 24h · from 273 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 0.41 is 4% 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. | ||||
| 0.18 m | 3 | Normal | 0.2% Alert · n=615 | |
0.18m
21:02 SLST · hourly feed
→ steady · +0.00 in 24h
2.82 m below Alert · higher than 10.6% of its history
Alert 3Minor 4Major 5
19 Sep 22:02 → 24 Sep 21:02 SLST · shaded: usually, this time of year 0.13–0.52 m, median 0.26 (n=124)
0.2%Alert<0%Minor<0%Major chance of reaching each level within 24h · from 615 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 0.18 is 4% 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. | ||||
| 0.15 m | 4.5 | Normal | <0% Alert · n=667 | |
0.15m
21:04 SLST · hourly feed
→ steady · +0.01 in 24h
4.35 m below Alert · higher than 4.8% of its history
Alert 4.5Minor 6Major 7
19 Sep 22:03 → 24 Sep 21:04 SLST · shaded: usually, this time of year 0.13–0.37 m, median 0.15 (n=132)
<0%Alert<0%Minor<0%Major chance of reaching each level within 24h · from 667 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 0.15 is 3% 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. | ||||
| 0.04 m ▼ | 4 | Normal | 0.3% Alert · n=649 | |
0.04m
21:04 SLST · hourly feed
▼ 0.01 m/h · -0.02 in 24h
3.96 m below Alert · higher than 3.1% of its history
Alert 4Minor 4.5Major 6
19 Sep 22:04 → 24 Sep 21:04 SLST · shaded: usually, this time of year 0.06–0.26 m, median 0.10 (n=124)
0.3%Alert0.3%Minor<0%Major chance of reaching each level within 24h · from 649 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 0.04 is 1% 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. | ||||
| 0.02 m | 4.84 | Normal | <1% Alert · n=224 | |
0.02m
18:02 SLST · hourly feed
→ steady · -0.01 in 24h
4.82 m below Alert · higher than 14.8% of its history
Alert 4.84Minor 5.94Major 8
20 Sep 07:09 → 24 Sep 18:02 SLST · shaded: usually, this time of year -0.11–0.22 m, median -0.03 (n=107)
<1%Alert<1%Minor<1%Major chance of reaching each level within 24h · from 224 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 0.02 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
21:04 SLST · hourly feed
→ steady · +0.01 in 24h
4.25 m below Alert · higher than 14% of its history
Alert 4Minor 4.6Major 6.5
19 Sep 22:03 → 24 Sep 21:04 SLST · shaded: usually, this time of year -0.33–-0.23 m, median -0.27 (n=101)
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. | ||||
| -0.29 m ▼ | 3 | Normal | — | |
-0.29m
21:02 SLST · hourly feed
▼ 0.01 m/h · -0.03 in 24h
3.29 m below Alert · higher than 17.8% of its history
Alert 3Minor 4.3Major 6
19 Sep 22:01 → 24 Sep 21:02 SLST · shaded: usually, this time of year -1.40–0.00 m, median -0.26 (n=132)
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 -0.29 is -5% 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. | ||||
| -3.16 m | 5 | Normal | — | |
-3.16m
18:00 SLST · hourly feed
→ steady · -0.02 in 24h
8.16 m below Alert · higher than 13.1% of its history
Alert 5Minor 6Major 8
20 Sep 06:02 → 24 Sep 18:00 SLST · shaded: usually, this time of year -3.15–-2.47 m, median -2.99 (n=110)
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 -3.16 is -40% 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. | ||||