Mahaweli Flood Watch

Peradeniya · Nawalapitiya · Kotmale reservoir — the upper Mahaweli

Updated 03:30 SLST · under an hour 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

Normal

4.81m

03:30 SLST · DMC report

▼ 0.04 m/h · +1.05 in 24h

0.19 m below Alert · higher than 93.1% of its history

Alert 5Minor 7Major 9

20 Sep 04:01 → 25 Sep 03:30 SLST · shaded: usually, this time of year 1.55–4.00 m, median 2.46 (n=133)

27.6%Alert3.4%Minor2.3%Major

chance of reaching each level within 24h · from 87 past readings in this state (level only)

For reference: Cyclone Ditwah, Nov 2025

Peak 14.80 m on 28 Nov 2025, 06:30 SLST — 3.0× Alert, 1.6× Major. Today's 4.81 is 32% 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.

Nawalapitiya

Normal

2.95m

03:30 SLST · DMC report

→ steady · +0.55 in 24h

0.55 m below Alert · higher than 96% of its history

Alert 3.5Minor 5Major 6

20 Sep 04:04 → 25 Sep 03:30 SLST · shaded: usually, this time of year 1.05–2.72 m, median 1.48 (n=133)

15.7%Alert7.8%Minor2%Major

chance of reaching each level within 24h · from 51 past readings in this state (level only)

For reference: Cyclone Ditwah, Nov 2025

Peak 6.69 m on 28 Nov 2025, 03:30 SLST — 1.9× Alert, 1.1× Major. Today's 2.95 is 44% of it.

26 Nov 00:30 → 3 Dec 21:30 SLST

28 readings survive from the event in the archive · at its worst, 9 stations in a single report stood at Major Flood.

Kotmale reservoir 61% full (+4.0 pts vs previous report) · 690.82 m asl · 12.2 m below FSL 703.0 · read 2026-09-24

Trend chart appears once there are 5 daily readings — 3 so far. Capture began 2026-09-22; the source publishes once a day and keeps no history.

Closest to their thresholds

Tap a station for its chart and base rates.

Station	Level	Alert		Next level, 24h
	6.61 m ▼	5	Minor floodMinor	6.3% Major · n=270
6.61m 03:30 SLST · DMC report ▼ 0.02 m/h · +1.52 in 24h 1.61 m above Alert · higher than 93.9% of its history Alert 5Minor 6Major 7.5 20 Sep 04:19 → 25 Sep 03:30 SLST · shaded: usually, this time of year 3.79–6.84 m, median 5.85 (n=305) 96.7%Alert52.6%Minor6.3%Major chance of reaching each level within 24h · from 270 past readings in this state (level + trend) For reference: Cyclone Ditwah, Nov 2025 Peak 5.60 m on 27 Nov 2025, 06:30 SLST — 1.1× Alert. Today's 6.61 is 118% 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.
	4.61 m	3.5	Minor floodMinor	10.4% Major · n=431
4.61m 03:30 SLST · DMC report → steady · +0.71 in 24h 1.11 m above Alert · higher than 95% of its history Alert 3.5Minor 4Major 5 20 Sep 04:06 → 25 Sep 03:30 SLST · shaded: usually, this time of year 2.59–4.84 m, median 4.17 (n=304) 97.7%Alert69.8%Minor10.4%Major chance of reaching each level within 24h · from 431 past readings in this state (level + trend) For reference: Cyclone Ditwah, Nov 2025 Peak 3.64 m on 26 Nov 2025, 09:30 SLST — 1.0× Alert. Today's 4.61 is 127% 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.
	1.79 m	1.4	Minor floodMinor	4.8% Major · n=545
1.79m 03:30 SLST · DMC report → steady · +0.41 in 24h 0.39 m above Alert · higher than 81.6% of its history Alert 1.4Minor 1.7Major 2.8 20 Sep 04:11 → 25 Sep 03:30 SLST · shaded: usually, this time of year 0.48–2.68 m, median 1.74 (n=197) 98.9%Alert62.9%Minor4.8%Major chance of reaching each level within 24h · from 545 past readings in this state (level + trend) For reference: Cyclone Ditwah, Nov 2025 Peak 1.70 m on 27 Nov 2025, 12:30 SLST — 1.2× Alert. Today's 1.79 is 105% 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.
	4.98 m	4	Alert	5.4% Minor · n=241
4.98m 03:30 SLST · DMC report → steady · +0.88 in 24h 0.98 m above Alert · higher than 89.1% of its history Alert 4Minor 6Major 7.5 20 Sep 04:00 → 25 Sep 03:30 SLST · shaded: usually, this time of year 2.33–5.25 m, median 3.99 (n=196) 88.4%Alert5.4%Minor<1%Major chance of reaching each level within 24h · from 241 past readings in this state (level + trend) For reference: Cyclone Ditwah, Nov 2025 Peak 5.46 m on 28 Nov 2025, 21:30 SLST — 1.4× Alert. Today's 4.98 is 91% 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.
	6.43 m	5.2	Alert	15.6% Minor · n=346
6.43m 03:30 SLST · DMC report → steady · +2.08 in 24h 1.23 m above Alert · higher than 93.7% of its history Alert 5.2Minor 7.5Major 9.5 20 Sep 04:19 → 25 Sep 03:30 SLST · shaded: usually, this time of year 1.43–6.05 m, median 3.62 (n=294) 86.1%Alert15.6%Minor1.4%Major chance of reaching each level within 24h · from 346 past readings in this state (level only) For reference: Cyclone Ditwah, Nov 2025 Peak 10.12 m on 28 Nov 2025, 21:30 SLST — 1.9× Alert, 1.1× Major. Today's 6.43 is 64% 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.
	1.72 m	1.5	Alert	10.9% Minor · n=119
1.72m 03:30 SLST · DMC report → steady · +0.56 in 24h 0.22 m above Alert · higher than 97.7% of its history Alert 1.5Minor 3Major 4.5 20 Sep 04:05 → 25 Sep 03:30 SLST · shaded: usually, this time of year 0.65–1.20 m, median 0.91 (n=262) 76.5%Alert10.9%Minor4.2%Major chance of reaching each level within 24h · from 119 past readings in this state (level only) For reference: Cyclone Ditwah, Nov 2025 Peak 3.60 m on 28 Nov 2025, 03:30 SLST — 2.4× Alert. Today's 1.72 is 48% 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.
	4.30 m ▼	4	Alert	13.2% Minor · n=53
4.30m 03:30 SLST · DMC report ▼ 0.01 m/h · -0.30 in 24h 0.30 m above Alert · higher than 95.1% of its history Alert 4Minor 6Major 7.5 20 Sep 04:34 → 25 Sep 03:30 SLST · shaded: usually, this time of year 1.95–4.29 m, median 2.79 (n=294) 62.3%Alert13.2%Minor<6%Major chance of reaching each level within 24h · from 53 past readings in this state (level + trend) For reference: Cyclone Ditwah, Nov 2025 Peak 4.12 m on 28 Nov 2025, 12:30 SLST — 1.0× Alert. Today's 4.30 is 104% 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.

The other 26 stations in this report

Station	Level	Alert		Next level, 24h
	14.74 m	15	Normal	4.3% Alert · n=94
14.74m 03:30 SLST · DMC report → steady · +1.98 in 24h 0.26 m below Alert · higher than 92.9% of its history Alert 15Minor 15.5Major 19 20 Sep 04:13 → 25 Sep 03:30 SLST · shaded: usually, this time of year 10.06–13.50 m, median 11.75 (n=262) 4.3%Alert3.2%Minor<3%Major chance of reaching each level within 24h · from 94 past readings in this state (level + trend) For reference: Cyclone Ditwah, Nov 2025 Peak 21.90 m on 29 Nov 2025, 00:30 SLST — 1.5× Alert, 1.2× Major. Today's 14.74 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.
	3.22 m	3.3	Normal	43.2% Alert · n=37
3.22m 03:30 SLST · DMC report → steady · +0.77 in 24h 0.08 m below Alert · higher than 63% of its history Alert 3.3Minor 4.4Major 5.5 20 Sep 04:04 → 25 Sep 03:30 SLST · shaded: usually, this time of year 1.45–4.57 m, median 3.34 (n=270) 43.2%Alert13.5%Minor<8%Major chance of reaching each level within 24h · from 37 past readings in this state (level + trend) For reference: Cyclone Ditwah, Nov 2025 Peak 7.04 m on 29 Nov 2025, 06:30 SLST — 2.1× Alert, 1.3× Major. Today's 3.22 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.
	6.20 m	6.5	Normal	10.2% Alert · n=49
6.20m 03:30 SLST · DMC report → steady · +1.54 in 24h 0.30 m below Alert · higher than 86.9% of its history Alert 6.5Minor 7.5Major 9.5 20 Sep 04:02 → 25 Sep 03:30 SLST · shaded: usually, this time of year 1.87–5.88 m, median 4.42 (n=262) 10.2%Alert2%Minor<6%Major chance of reaching each level within 24h · from 49 past readings in this state (level + trend) For reference: Cyclone Ditwah, Nov 2025 Peak 10.95 m on 30 Nov 2025, 00:30 SLST — 1.6× Alert, 1.1× Major. Today's 6.20 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.
	2.86 m	3	Normal	28.2% Alert · n=39
2.86m 03:30 SLST · DMC report → steady · +0.28 in 24h 0.14 m below Alert · higher than 97.4% of its history Alert 3Minor 4Major 6 20 Sep 04:05 → 25 Sep 03:30 SLST · shaded: usually, this time of year 1.66–2.20 m, median 1.86 (n=254) 28.2%Alert2.6%Minor2.6%Major chance of reaching each level within 24h · from 39 past readings in this state (level + trend) For reference: Cyclone Ditwah, Nov 2025 Peak 6.48 m on 28 Nov 2025, 12:30 SLST — 2.2× Alert, 1.1× Major. Today's 2.86 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.
	2.70 m	3	Normal	6.5% Alert · n=231
2.70m 03:30 SLST · DMC report → steady · +0.05 in 24h 0.30 m below Alert · higher than 69.6% of its history Alert 3Minor 4Major 5 20 Sep 04:56 → 25 Sep 03:30 SLST · shaded: usually, this time of year 1.05–3.74 m, median 2.83 (n=304) 6.5%Alert<1%Minor<1%Major chance of reaching each level within 24h · from 231 past readings in this state (level + trend) For reference: Cyclone Ditwah, Nov 2025 Peak 4.29 m on 1 Dec 2025, 00:30 SLST — 1.4× Alert. Today's 2.70 is 63% 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.
	3.50 ft	4	Normal	32.1% Alert · n=53
3.50ft 03:30 SLST · DMC report → steady · +0.80 in 24h 0.50 ft below Alert · higher than 86.2% of its history Alert 4Minor 5Major 7 20 Sep 04:07 → 25 Sep 03:30 SLST · shaded: usually, this time of year 1.10–3.50 ft, median 2.55 (n=253) 32.1%Alert5.7%Minor<6%Major chance of reaching each level within 24h · from 53 past readings in this state (level + trend) For reference: Cyclone Ditwah, Nov 2025 Peak 8.50 ft on 1 Dec 2025, 12:30 SLST — 2.1× Alert, 1.2× Major. Today's 3.50 is 41% 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.
	8.55 m	10	Normal	23.1% Alert · n=182
8.55m 03:30 SLST · DMC report → steady · +0.73 in 24h 1.45 m below Alert · higher than 72% of its history Alert 10Minor 10.7Major 12.2 20 Sep 04:02 → 25 Sep 03:30 SLST · shaded: usually, this time of year 5.67–9.64 m, median 7.97 (n=302) 23.1%Alert2.2%Minor0.5%Major chance of reaching each level within 24h · from 182 past readings in this state (level + trend) For reference: Cyclone Ditwah, Nov 2025 Peak 12.01 m on 29 Nov 2025, 21:30 SLST — 1.2× Alert. Today's 8.55 is 71% 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.
	2.68 m ▼	4	Normal	4.9% Alert · n=81
2.68m 03:30 SLST · DMC report ▼ 0.06 m/h · -0.18 in 24h 1.32 m below Alert · higher than 92.2% of its history Alert 4Minor 5Major 6.5 20 Sep 04:17 → 25 Sep 03:30 SLST · shaded: usually, this time of year 0.74–3.09 m, median 1.93 (n=304) 4.9%Alert3.7%Minor<4%Major chance of reaching each level within 24h · from 81 past readings in this state (level + trend) For reference: Cyclone Ditwah, Nov 2025 Peak 2.77 m on 27 Nov 2025, 00:30 SLST — 0.7× Alert. Today's 2.68 is 97% 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.
	3.35 m	5	Normal	13% Alert · n=77
3.35m 03:30 SLST · DMC report → steady · +0.76 in 24h 1.65 m below Alert · higher than 67.5% of its history Alert 5Minor 6.2Major 9.6 20 Sep 04:02 → 25 Sep 03:30 SLST · shaded: usually, this time of year 1.74–3.55 m, median 2.92 (n=225) 13%Alert3.9%Minor<4%Major chance of reaching each level within 24h · from 77 past readings in this state (level + trend) For reference: Cyclone Ditwah, Nov 2025 Peak 13.46 m on 29 Nov 2025, 09:30 SLST — 2.7× Alert, 1.4× Major. Today's 3.35 is 25% 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.
	1.45 m	2.5	Normal	6% Alert · n=134
1.45m 03:30 SLST · DMC report → steady · -1.57 in 24h 1.05 m below Alert · higher than 87.8% of its history Alert 2.5Minor 4Major 6 20 Sep 04:10 → 25 Sep 03:30 SLST · shaded: usually, this time of year 0.23–1.84 m, median 1.10 (n=302) 6%Alert3%Minor<2%Major chance of reaching each level within 24h · from 134 past readings in this state (level + trend) For reference: Cyclone Ditwah, Nov 2025 Peak 2.97 m on 26 Nov 2025, 21:30 SLST — 1.2× Alert. Today's 1.45 is 49% 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.
	1.62 m	3	Normal	5.7% Alert · n=209
1.62m 03:30 SLST · DMC report → steady · +0.12 in 24h 1.38 m below Alert · higher than 83.3% of its history Alert 3Minor 4Major 6 20 Sep 04:08 → 25 Sep 03:30 SLST · shaded: usually, this time of year 0.47–1.73 m, median 1.05 (n=262) 5.7%Alert4.3%Minor0.5%Major chance of reaching each level within 24h · from 209 past readings in this state (level + trend) For reference: Cyclone Ditwah, Nov 2025 Peak 7.27 m on 28 Nov 2025, 06:30 SLST — 2.4× Alert, 1.5× Major. Today's 1.62 is 22% 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.
	2.32 m	4.8	Normal	5% Alert · n=100
2.32m 03:30 SLST · DMC report → steady · +0.51 in 24h 2.48 m below Alert · higher than 92% of its history Alert 4.8Minor 5.8Major 7 20 Sep 04:04 → 25 Sep 03:30 SLST · shaded: usually, this time of year 0.81–2.32 m, median 1.44 (n=261) 5%Alert3%Minor2%Major chance of reaching each level within 24h · from 100 past readings in this state (level + trend) For reference: Cyclone Ditwah, Nov 2025 Peak 8.55 m on 28 Nov 2025, 12:30 SLST — 1.8× Alert, 1.3× Major. Today's 2.32 is 27% 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.
	2.42 m	5.5	Normal	8% Alert · n=50
2.42m 03:30 SLST · DMC report → steady · +1.00 in 24h 3.08 m below Alert · higher than 73.3% of its history Alert 5.5Minor 6.5Major 7.5 20 Sep 04:03 → 25 Sep 03:30 SLST · shaded: usually, this time of year 0.88–2.47 m, median 1.74 (n=219) 8%Alert6%Minor6%Major chance of reaching each level within 24h · from 50 past readings in this state (level + trend) For reference: Cyclone Ditwah, Nov 2025 Peak 12.54 m on 29 Nov 2025, 06:30 SLST — 2.3× Alert, 1.7× Major. Today's 2.42 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.
	1.30 m	3	Normal	8.5% Alert · n=47
1.30m 03:30 SLST · DMC report → steady · +0.40 in 24h 1.70 m below Alert · higher than 76.3% of its history Alert 3Minor 5Major 7 20 Sep 04:03 → 25 Sep 03:30 SLST · shaded: usually, this time of year 0.55–1.10 m, median 0.75 (n=103) 8.5%Alert<6%Minor<6%Major chance of reaching each level within 24h · from 47 past readings in this state (level + trend) For reference: Cyclone Ditwah, Nov 2025 Peak 4.78 m on 28 Nov 2025, 12:30 SLST — 1.6× Alert. Today's 1.30 is 27% 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.
	1.11 m	4	Normal	0.2% Alert · n=577
1.11m 03:30 SLST · DMC report → steady · +0.00 in 24h 2.89 m below Alert · higher than 63.9% of its history Alert 4Minor 5Major 5.5 20 Sep 04:01 → 25 Sep 03:30 SLST · shaded: usually, this time of year -0.19–1.13 m, median 0.63 (n=123) 0.2%Alert0.2%Minor<1%Major chance of reaching each level within 24h · from 577 past readings in this state (level + trend) For reference: Cyclone Ditwah, Nov 2025 Peak 5.52 m on 27 Nov 2025, 12:30 SLST — 1.4× Alert, 1.0× Major. Today's 1.11 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=534
1.64m 03:30 SLST · DMC report → steady · -0.02 in 24h 4.36 m below Alert · higher than 43.7% of its history Alert 6Minor 7.5Major 10.5 20 Sep 04:02 → 25 Sep 03:30 SLST · shaded: usually, this time of year 1.22–1.82 m, median 1.61 (n=124) <1%Alert<1%Minor<1%Major chance of reaching each level within 24h · from 534 past readings in this state (level + trend) For reference: Cyclone Ditwah, Nov 2025 Peak 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.
	1.00 m	4.4	Normal	<0% Alert · n=681
1.00m 03:30 SLST · DMC report → steady · +0.05 in 24h 3.40 m below Alert · higher than 61.7% of its history Alert 4.4Minor 5.4Major 5.9 20 Sep 04:03 → 25 Sep 03:30 SLST · shaded: usually, this time of year 0.42–1.06 m, median 0.71 (n=133) <0%Alert<0%Minor<0%Major chance of reaching each level within 24h · from 681 past readings in this state (level + trend) For reference: Cyclone Ditwah, Nov 2025 Peak 3.18 m on 27 Nov 2025, 09:30 SLST — 0.7× Alert. Today's 1.00 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=706
1.01m 03:30 SLST · DMC report → steady · +0.01 in 24h 5.89 m below Alert · higher than 11.3% of its history Alert 6.9Minor 8.4Major 8.8 20 Sep 04:01 → 25 Sep 03:30 SLST · shaded: usually, this time of year 0.93–1.35 m, median 1.04 (n=133) <0%Alert<0%Minor<0%Major chance of reaching each level within 24h · from 706 past readings in this state (level + trend) For reference: Cyclone Ditwah, Nov 2025 Peak 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=660
0.54m 03:30 SLST · DMC report → steady · +0.00 in 24h 4.46 m below Alert · higher than 3.7% of its history Alert 5Minor 6Major 7.5 20 Sep 04:08 → 25 Sep 03:30 SLST · shaded: usually, this time of year 0.53–0.82 m, median 0.58 (n=133) 0.2%Alert<0%Minor<0%Major chance of reaching each level within 24h · from 660 past readings in this state (level + trend) For reference: Cyclone Ditwah, Nov 2025 Peak 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=645
0.41m 03:30 SLST · DMC report → steady · +0.00 in 24h 3.59 m below Alert · higher than 14.8% of its history Alert 4Minor 5Major 6 20 Sep 04:01 → 25 Sep 03:30 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 645 past readings in this state (level + trend) For reference: Cyclone Ditwah, Nov 2025 Peak 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.
	0.41 m	4.75	Normal	2.4% Alert · n=338
0.41m 03:30 SLST · DMC report → steady · +0.02 in 24h 4.34 m below Alert · higher than 25% of its history Alert 4.75Minor 6Major 7 20 Sep 04:00 → 25 Sep 03:30 SLST · shaded: usually, this time of year -0.25–0.39 m, median -0.15 (n=64) 2.4%Alert<1%Minor<1%Major chance of reaching each level within 24h · from 338 past readings in this state (level + trend) For reference: Cyclone Ditwah, Nov 2025 Peak 8.33 m on 28 Nov 2025, 06:30 SLST — 1.8× Alert, 1.2× Major. Today's 0.41 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.
	0.18 m	3	Normal	0.2% Alert · n=618
0.18m 03:30 SLST · DMC report → steady · +0.04 in 24h 2.82 m below Alert · higher than 10.8% of its history Alert 3Minor 4Major 5 20 Sep 04:05 → 25 Sep 03:30 SLST · shaded: usually, this time of year 0.13–0.52 m, median 0.26 (n=125) 0.2%Alert<0%Minor<0%Major chance of reaching each level within 24h · from 618 past readings in this state (level + trend) For reference: Cyclone Ditwah, Nov 2025 Peak 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=670
0.15m 03:30 SLST · DMC report → steady · +0.01 in 24h 4.35 m below Alert · higher than 5% of its history Alert 4.5Minor 6Major 7 20 Sep 04:03 → 25 Sep 03:30 SLST · shaded: usually, this time of year 0.13–0.37 m, median 0.15 (n=133) <0%Alert<0%Minor<0%Major chance of reaching each level within 24h · from 670 past readings in this state (level + trend) For reference: Cyclone Ditwah, Nov 2025 Peak 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.
	0.03 m	4	Normal	0.3% Alert · n=652
0.03m 03:30 SLST · DMC report → steady · -0.05 in 24h 3.97 m below Alert · higher than 2.3% of its history Alert 4Minor 4.5Major 6 20 Sep 04:04 → 25 Sep 03:30 SLST · shaded: usually, this time of year 0.05–0.26 m, median 0.10 (n=125) 0.3%Alert0.3%Minor<0%Major chance of reaching each level within 24h · from 652 past readings in this state (level + trend) For reference: Cyclone Ditwah, Nov 2025 Peak 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.
	-0.25 m	4	Normal	—
-0.25m 03:30 SLST · DMC report → steady · +0.00 in 24h 4.25 m below Alert · higher than 14.2% of its history Alert 4Minor 4.6Major 6.5 20 Sep 04:01 → 25 Sep 03:30 SLST · shaded: usually, this time of year -0.33–-0.23 m, median -0.27 (n=102) No base rate — this state has only 0 matching readings in 8.3 years (need 30) For reference: Cyclone Ditwah, Nov 2025 Peak 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.
	-0.32 m	3	Normal	—
-0.32m 03:30 SLST · DMC report → steady · -0.06 in 24h 3.32 m below Alert · higher than 16.8% of its history Alert 3Minor 4.3Major 6 20 Sep 04:02 → 25 Sep 03:30 SLST · shaded: usually, this time of year -1.40–-0.03 m, median -0.26 (n=133) No base rate — this state has only 0 matching readings in 8.3 years (need 30) For reference: Cyclone Ditwah, Nov 2025 Peak 5.50 m on 27 Nov 2025, 18:30 SLST — 1.8× Alert. Today's -0.32 is -6% 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.