Peradeniya · Nawalapitiya · Kotmale reservoir — the upper Mahaweli
Updated 00:08 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 3.60 is 24% 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 2.08 is 31% 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 | |
|---|---|---|---|---|
| 1.96 m | 1.4 | Minor floodMinor | 4.7% Major · n=557 | |
1.96m
00:04 SLST · hourly feed
→ steady · +0.03 in 24h
0.56 m above Alert · higher than 88.1% of its history
Alert 1.4Minor 1.7Major 2.8
22 Sep 01:00 → 27 Sep 00:04 SLST · shaded: usually, this time of year 0.61–2.68 m, median 1.90 (n=211)
98.9%Alert63.7%Minor4.7%Major chance of reaching each level within 24h · from 557 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 1.96 is 115% 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. | ||||
| 4.78 m ▼ | 3.5 | Minor floodMinor | 10.1% Major · n=444 | |
4.78m
00:10 SLST · hourly feed
▼ 0.01 m/h · +0.01 in 24h
1.28 m above Alert · higher than 96.7% of its history
Alert 3.5Minor 4Major 5
22 Sep 01:12 → 27 Sep 00:10 SLST · shaded: usually, this time of year 2.62–4.84 m, median 4.18 (n=320)
97.7%Alert70.7%Minor10.1%Major chance of reaching each level within 24h · from 444 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 4.78 is 131% 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. | ||||
| 5.75 m ▼ | 5 | Alert | 53.3% Minor · n=276 | |
5.75m
00:05 SLST · hourly feed
▼ 0.02 m/h · -0.48 in 24h
0.75 m above Alert · higher than 78.8% of its history
Alert 5Minor 6Major 7.5
22 Sep 01:02 → 27 Sep 00:05 SLST · shaded: usually, this time of year 3.86–6.83 m, median 5.95 (n=321)
96.7%Alert53.3%Minor6.2%Major chance of reaching each level within 24h · from 276 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 5.75 is 103% 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. | ||||
| 2.88 m ▼ | 3 | Normal | 6.1% Alert · n=244 | |
2.88m
00:06 SLST · hourly feed
▼ 0.01 m/h · +0.04 in 24h
0.12 m below Alert · higher than 74.5% of its history
Alert 3Minor 4Major 5
22 Sep 01:20 → 27 Sep 00:06 SLST · shaded: usually, this time of year 1.15–3.72 m, median 2.83 (n=320)
6.1%Alert<1%Minor<1%Major chance of reaching each level within 24h · from 244 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 2.88 is 67% 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. | ||||
| 8.82 m ▼ | 10 | Normal | 1.8% Alert · n=284 | |
8.82m
00:02 SLST · hourly feed
▼ 0.02 m/h · -0.14 in 24h
1.18 m below Alert · higher than 79.6% of its history
Alert 10Minor 10.7Major 12.2
22 Sep 01:15 → 27 Sep 00:02 SLST · shaded: usually, this time of year 5.78–9.54 m, median 8.03 (n=318)
1.8%Alert1.1%Minor0.4%Major chance of reaching each level within 24h · from 284 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 8.82 is 73% 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. | ||||
| Station | Level | Alert | Next level, 24h | |
|---|---|---|---|---|
| 4.45 m ▼ | 5.2 | Normal | 9.9% Alert · n=182 | |
4.45m
00:06 SLST · hourly feed
▼ 0.08 m/h · -1.28 in 24h
0.75 m below Alert · higher than 73.6% of its history
Alert 5.2Minor 7.5Major 9.5
22 Sep 01:06 → 27 Sep 00:06 SLST · shaded: usually, this time of year 1.45–6.10 m, median 3.80 (n=310)
9.9%Alert<2%Minor<2%Major chance of reaching each level within 24h · from 182 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 4.45 is 44% 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. | ||||
| 2.55 m ▲ | 3 | Normal | 30.2% Alert · n=43 | |
2.55m
00:06 SLST · hourly feed
▲ 0.04 m/h · 0.45 m below Alert · -0.35 in 24h
0.45 m below Alert · higher than 94.5% of its history
Alert 3Minor 4Major 6
22 Sep 01:05 → 27 Sep 00:06 SLST · shaded: usually, this time of year 1.66–2.45 m, median 1.86 (n=270)
30.2%Alert2.3%Minor2.3%Major chance of reaching each level within 24h · from 43 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 2.55 is 39% 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. | ||||
| 3.39 m ▼ | 4 | Normal | 21.4% Alert · n=140 | |
3.39m
00:02 SLST · hourly feed
▼ 0.04 m/h · -1.33 in 24h
0.61 m below Alert · higher than 60.7% of its history
Alert 4Minor 6Major 7.5
22 Sep 01:01 → 27 Sep 00:02 SLST · shaded: usually, this time of year 2.38–5.21 m, median 4.05 (n=210)
21.4%Alert0.7%Minor<2%Major chance of reaching each level within 24h · from 140 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 3.39 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. | ||||
| 12.56 m ▼ | 15 | Normal | 4.5% Alert · n=286 | |
12.56m
00:02 SLST · hourly feed
▼ 0.06 m/h · -1.34 in 24h
2.44 m below Alert · higher than 76.7% of its history
Alert 15Minor 15.5Major 19
22 Sep 01:02 → 27 Sep 00:02 SLST · shaded: usually, this time of year 10.13–13.68 m, median 11.77 (n=278)
4.5%Alert1.4%Minor<1%Major chance of reaching each level within 24h · from 286 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 12.56 is 57% 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. | ||||
| 5.00 m ▼ | 6.5 | Normal | 1.1% Alert · n=190 | |
5.00m
00:05 SLST · hourly feed
▼ 0.08 m/h · -0.86 in 24h
1.50 m below Alert · higher than 72.7% of its history
Alert 6.5Minor 7.5Major 9.5
22 Sep 01:43 → 27 Sep 00:05 SLST · shaded: usually, this time of year 1.88–5.91 m, median 4.47 (n=278)
1.1%Alert<2%Minor<2%Major chance of reaching each level within 24h · from 190 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 5.00 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. | ||||
| 2.53 m | 3.3 | Normal | 8.2% Alert · n=85 | |
2.53m
00:07 SLST · hourly feed
→ steady · -0.09 in 24h
0.77 m below Alert · higher than 51.2% of its history
Alert 3.3Minor 4.4Major 5.5
22 Sep 01:00 → 27 Sep 00:07 SLST · shaded: usually, this time of year 1.63–4.56 m, median 3.28 (n=286)
8.2%Alert1.2%Minor<4%Major chance of reaching each level within 24h · from 85 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 2.53 is 36% 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. | ||||
| 2.94 m ▼ | 4 | Normal | 11.3% Alert · n=247 | |
2.94m
00:01 SLST · hourly feed
▼ 0.02 m/h · -0.46 in 24h
1.06 m below Alert · higher than 81% of its history
Alert 4Minor 6Major 7.5
22 Sep 01:32 → 27 Sep 00:01 SLST · shaded: usually, this time of year 1.95–4.29 m, median 2.83 (n=310)
11.3%Alert4.5%Minor0.8%Major chance of reaching each level within 24h · from 247 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 2.94 is 71% 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. | ||||
| 1.04 m ▼ | 1.5 | Normal | 4.7% Alert · n=430 | |
1.04m
00:12 SLST · hourly feed
▼ 0.07 m/h · -0.24 in 24h
0.46 m below Alert · higher than 69.7% of its history
Alert 1.5Minor 3Major 4.5
22 Sep 03:30 → 27 Sep 00:12 SLST · shaded: usually, this time of year 0.66–1.28 m, median 0.93 (n=278)
4.7%Alert<1%Minor<1%Major chance of reaching each level within 24h · from 430 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 1.04 is 29% 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. | ||||
| 2.70 ft ▲ | 4 | Normal | 10.2% Alert · n=88 | |
2.70ft
00:01 SLST · hourly feed
▲ 0.10 ft/h · 1.30 ft below Alert · -0.30 in 24h
1.30 ft below Alert · higher than 68.6% of its history
Alert 4Minor 5Major 7
22 Sep 01:08 → 27 Sep 00:01 SLST · shaded: usually, this time of year 1.20–3.50 ft, median 2.65 (n=269)
10.2%Alert3.4%Minor<3%Major chance of reaching each level within 24h · from 88 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 2.70 is 32% 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. | ||||
| 2.86 m ▼ | 5 | Normal | 0.9% Alert · n=350 | |
2.86m
00:02 SLST · hourly feed
▼ 0.01 m/h · -0.23 in 24h
2.14 m below Alert · higher than 50.3% of its history
Alert 5Minor 6.2Major 9.6
22 Sep 01:04 → 27 Sep 00:02 SLST · shaded: usually, this time of year 1.74–3.55 m, median 2.97 (n=238)
0.9%Alert<1%Minor<1%Major chance of reaching each level within 24h · from 350 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 2.86 is 21% 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. | ||||
| 1.63 m | 4 | Normal | 0.7% Alert · n=146 | |
1.63m
00:07 SLST · hourly feed
→ steady · -0.67 in 24h
2.37 m below Alert · higher than 64.1% of its history
Alert 4Minor 5Major 6.5
22 Sep 01:23 → 27 Sep 00:07 SLST · shaded: usually, this time of year 0.74–3.08 m, median 1.97 (n=319)
0.7%Alert<2%Minor<2%Major chance of reaching each level within 24h · from 146 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 1.63 is 59% 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. | ||||
| 0.99 m ▼ | 2.5 | Normal | 3.2% Alert · n=689 | |
0.99m
00:05 SLST · hourly feed
▼ 0.01 m/h · -0.10 in 24h
1.51 m below Alert · higher than 68.6% of its history
Alert 2.5Minor 4Major 6
22 Sep 02:08 → 27 Sep 00:05 SLST · shaded: usually, this time of year 0.23–1.84 m, median 1.11 (n=318)
3.2%Alert0.4%Minor<0%Major chance of reaching each level within 24h · from 689 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 0.99 is 33% 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. | ||||
| 1.03 m | 3 | Normal | 0.5% Alert · n=551 | |
1.03m
00:08 SLST · hourly feed
→ steady · -0.22 in 24h
1.97 m below Alert · higher than 56.4% of its history
Alert 3Minor 4Major 6
22 Sep 01:08 → 27 Sep 00:08 SLST · shaded: usually, this time of year 0.48–1.71 m, median 1.07 (n=278)
0.5%Alert<1%Minor<1%Major chance of reaching each level within 24h · from 551 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 1.03 is 14% 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. | ||||
| 1.59 m ▼ | 4.8 | Normal | 0.7% Alert · n=571 | |
1.59m
00:03 SLST · hourly feed
▼ 0.02 m/h · -0.51 in 24h
3.21 m below Alert · higher than 76.2% of its history
Alert 4.8Minor 5.8Major 7
22 Sep 01:02 → 27 Sep 00:03 SLST · shaded: usually, this time of year 0.83–2.32 m, median 1.46 (n=277)
0.7%Alert<1%Minor<1%Major chance of reaching each level within 24h · from 571 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 1.59 is 19% 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. | ||||
| 0.95 m ▼ | 3 | Normal | 0.2% Alert · n=519 | |
0.95m
00:00 SLST · hourly feed
▼ 0.01 m/h · -0.21 in 24h
2.05 m below Alert · higher than 40.7% of its history
Alert 3Minor 5Major 7
22 Sep 01:22 → 27 Sep 00:00 SLST · shaded: usually, this time of year 0.58–1.20 m, median 0.81 (n=114)
0.2%Alert<1%Minor<1%Major chance of reaching each level within 24h · from 519 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 0.95 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. | ||||
| 1.57 m ▼ | 5.5 | Normal | 0.2% Alert · n=472 | |
1.57m
00:07 SLST · hourly feed
▼ 0.02 m/h · -0.31 in 24h
3.93 m below Alert · higher than 46.6% of its history
Alert 5.5Minor 6.5Major 7.5
22 Sep 01:04 → 27 Sep 00:07 SLST · shaded: usually, this time of year 0.91–2.44 m, median 1.79 (n=232)
0.2%Alert<1%Minor<1%Major chance of reaching each level within 24h · from 472 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 1.57 is 13% 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=590 | |
1.13m
00:02 SLST · hourly feed
→ steady · -0.01 in 24h
2.87 m below Alert · higher than 65.4% of its history
Alert 4Minor 5Major 5.5
22 Sep 01:06 → 27 Sep 00:02 SLST · shaded: usually, this time of year -0.18–1.14 m, median 1.05 (n=133)
0.2%Alert0.2%Minor<1%Major chance of reaching each level within 24h · from 590 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=547 | |
1.64m
00:09 SLST · hourly feed
→ steady · +0.00 in 24h
4.36 m below Alert · higher than 44.1% of its history
Alert 6Minor 7.5Major 10.5
22 Sep 02:01 → 27 Sep 00:09 SLST · shaded: usually, this time of year 1.23–1.82 m, median 1.64 (n=134)
<1%Alert<1%Minor<1%Major chance of reaching each level within 24h · from 547 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. | ||||
| 1.07 m | 4.4 | Normal | <0% Alert · n=693 | |
1.07m
00:09 SLST · hourly feed
→ steady · +0.02 in 24h
3.33 m below Alert · higher than 69.2% of its history
Alert 4.4Minor 5.4Major 5.9
22 Sep 01:02 → 27 Sep 00:09 SLST · shaded: usually, this time of year 0.43–1.08 m, median 0.81 (n=143)
<0%Alert<0%Minor<0%Major chance of reaching each level within 24h · from 693 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 1.07 is 34% 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. | ||||
| 0.97 m | 6.9 | Normal | <0% Alert · n=719 | |
0.97m
00:01 SLST · hourly feed
→ steady · -0.03 in 24h
5.93 m below Alert · higher than 9.7% of its history
Alert 6.9Minor 8.4Major 8.8
22 Sep 01:03 → 27 Sep 00:01 SLST · shaded: usually, this time of year 0.94–1.35 m, median 1.04 (n=143)
<0%Alert<0%Minor<0%Major chance of reaching each level within 24h · from 719 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 0.97 is 17% 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. | ||||
| 0.52 m | 5 | Normal | 0.1% Alert · n=673 | |
0.52m
00:01 SLST · hourly feed
→ steady · -0.01 in 24h
4.48 m below Alert · higher than 1.9% of its history
Alert 5Minor 6Major 7.5
22 Sep 01:27 → 27 Sep 00:01 SLST · shaded: usually, this time of year 0.53–0.82 m, median 0.57 (n=143)
0.1%Alert<0%Minor<0%Major chance of reaching each level within 24h · from 673 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 0.52 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=658 | |
0.41m
00:35 SLST · hourly feed
→ steady · +0.00 in 24h
3.59 m below Alert · higher than 15.5% of its history
Alert 4Minor 5Major 6
22 Sep 01:01 → 27 Sep 00:35 SLST · shaded: usually, this time of year 0.36–0.41 m, median 0.41 (n=115)
0.5%Alert0.5%Minor<0%Major chance of reaching each level within 24h · from 658 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. | ||||
| 0.38 m | 4.75 | Normal | 2.3% Alert · n=351 | |
0.38m
00:03 SLST · hourly feed
→ steady · -0.01 in 24h
4.37 m below Alert · higher than 23.3% of its history
Alert 4.75Minor 6Major 7
22 Sep 01:05 → 27 Sep 00:03 SLST · shaded: usually, this time of year -0.25–0.39 m, median 0.24 (n=76)
2.3%Alert<1%Minor<1%Major chance of reaching each level within 24h · from 351 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 0.38 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. | ||||
| 0.11 m ▼ | 3 | Normal | 0.2% Alert · n=628 | |
0.11m
00:02 SLST · hourly feed
▼ 0.02 m/h · -0.04 in 24h
2.89 m below Alert · higher than 3.5% of its history
Alert 3Minor 4Major 5
22 Sep 01:02 → 27 Sep 00:02 SLST · shaded: usually, this time of year 0.11–0.52 m, median 0.23 (n=135)
0.2%Alert<0%Minor<0%Major chance of reaching each level within 24h · from 628 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 0.11 is 3% 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=683 | |
0.13m
00:02 SLST · hourly feed
→ steady · +0.00 in 24h
4.37 m below Alert · higher than 2.1% of its history
Alert 4.5Minor 6Major 7
22 Sep 01:01 → 27 Sep 00:02 SLST · shaded: usually, this time of year 0.13–0.37 m, median 0.15 (n=143)
<0%Alert<0%Minor<0%Major chance of reaching each level within 24h · from 683 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. | ||||
| 0.07 m ▲ | 3 | Normal | <1% Alert · n=220 | |
0.07m
00:03 SLST · hourly feed
▲ 0.01 m/h · +0.10 in 24h
2.93 m below Alert · higher than 40.1% of its history
Alert 3Minor 4.3Major 6
22 Sep 01:01 → 27 Sep 00:03 SLST · shaded: usually, this time of year -1.39–0.00 m, median -0.25 (n=143)
<1%Alert<1%Minor<1%Major chance of reaching each level within 24h · from 220 past readings in this state (level + trend)
For reference: Cyclone Ditwah, Nov 2025Peak 5.50 m on 27 Nov 2025, 18:30 SLST — 1.8× Alert. Today's 0.07 is 1% 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. | ||||
| 0.05 m | 4 | Normal | 0.3% Alert · n=665 | |
0.05m
00:04 SLST · hourly feed
→ steady · +0.02 in 24h
3.95 m below Alert · higher than 6.2% of its history
Alert 4Minor 4.5Major 6
22 Sep 03:30 → 27 Sep 00:04 SLST · shaded: usually, this time of year 0.03–0.25 m, median 0.09 (n=135)
0.3%Alert0.3%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 6.65 m on 27 Nov 2025, 18:30 SLST — 1.7× Alert, 1.1× Major. Today's 0.05 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. | ||||
| -0.28 m | 4 | Normal | — | |
-0.28m
00:03 SLST · hourly feed
→ steady · -0.03 in 24h
4.28 m below Alert · higher than 6.4% of its history
Alert 4Minor 4.6Major 6.5
22 Sep 01:06 → 27 Sep 00:03 SLST · shaded: usually, this time of year -0.33–-0.24 m, median -0.27 (n=113)
No base rate — this state has only 0 matching readings in 8.3 years (need 30)
For reference: Cyclone Ditwah, Nov 2025Peak 7.60 m on 28 Nov 2025, 15:30 SLST — 1.9× Alert, 1.2× Major. Today's -0.28 is -4% 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. | ||||