Reservoir · Tasmania · Australia · BOM Water Data Online
Laughing Jack Lagoon
39.1% full
Capacity
24.8 hm³
Volume stored
10 hm³
River
Powers Rivulet
Year completed
1957
Coordinates
42.171°S, 146.309°E
Last updated
2026-09-07
Current fill
39.1%vs 7 days ago
+2.1%gaining
vs 1 year ago
+7.7%year-over-year
7-day trend
↑rising
Data source: Bureau of Meteorology — Water Data Online (KiWIS) — daily mean storage volume, quality-controlled. Capacity from the BOM Water Storages ArcGIS layer (total design capacity in ML). Last reading: 2026-09-07.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -42.171, 146.309 · Open in Google Maps
About Laughing Jack Lagoon
As of September 7, 2026, Laughing Jack Lagoon is filled to 39.1% of its total capacity, holding roughly 10 hm³ of water out of a maximum 25 hm³. At this level the reservoir is low.
Over the most recent week on record the fill level has risen by 2.1 percentage points, and it is 7.7 points above its level on the same date a year earlier.
Across the readings we hold for Laughing Jack Lagoon — 1094 data points between September 10, 2023 and September 7, 2026 — the level has ranged from a low of 4.9% (May 8, 2024) to a high of 91.2% (January 1, 2026). On average the reservoir is fullest around December and at its lowest around May.
The dam at Laughing Jack Lagoon was completed in 1957. It is operated by BOM primarily for water supply. It lies within the Powers Rivulet Basin basin at 42.171°S, 146.309°E.
Key facts
- Current fill level
- 39.1%
- Water stored
- 10 hm³
- Total capacity
- 25 hm³
- 7-day change
- ▲ 2.1 pts
- Year-on-year
- ▲ 7.7 pts
- Primary use
- Water supply
- River
- Powers Rivulet
- River basin
- Powers Rivulet Basin
- Year completed
- 1957
- Operator
- BOM
- Coordinates
- 42.171°S, 146.309°E
- Last updated
- September 7, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 7 Sep 2026 | 39.1% | 10 |
| 6 Sep 2026 | 38.8% | 10 |
| 5 Sep 2026 | 38.4% | 10 |
| 4 Sep 2026 | 38.1% | 9 |
| 3 Sep 2026 | 37.7% | 9 |
| 2 Sep 2026 | 37.4% | 9 |
| 1 Sep 2026 | 37.2% | 9 |
| 31 Aug 2026 | 37.0% | 9 |
| 30 Aug 2026 | 37.0% | 9 |
| 29 Aug 2026 | 36.8% | 9 |
| 28 Aug 2026 | 36.7% | 9 |
| 27 Aug 2026 | 36.5% | 9 |