Reservoir · Tasmania · Australia · BOM Water Data Online
Lake Parangana
9.2% full
Capacity
14.8 hm³
Volume stored
1 hm³
River
Mersey Forth
Year completed
1968
Coordinates
41.650°S, 146.228°E
Last updated
2026-10-26
Current fill
9.2%vs 7 days ago
+5.6 ppgaining
vs 1 year ago
-9.3 ppyear-over-year
7-day trend
↑rising
Drought context
Storage vs October average
78%of normal
9.2% full on 2026-10-26, against an average of 11.8% for October across 4 years of readings (-2.6 points).
Rain over the last three months · 11 October 2026
Moderately dry
In the three months to 11 October 2026 the area around Lake Parangana had well below normal rain, a shortfall seen about one year in six. Rainfall compared with the long-run record for the same season at this point (Copernicus Global Drought Observatory, SPI-3 index −1.22). Rain, not storage. Australia drought figures →
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: 2026-10-26.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 41.650°S, 146.228°E · Open in Google Maps
About Lake Parangana
As of October 26, 2026, Lake Parangana is filled to 9.2% of its total capacity, holding 1.36 hm³ of water out of a maximum 14.8 hm³. At this level the reservoir is critically low. Of that total, 7 hm³ is usable (live) storage.
Over the most recent week on record the fill level has risen by 5.6 percentage points, and it is 9.3 points below its level on the same date a year earlier.
Across the readings we hold for Lake Parangana — 1094 data points between October 29, 2023 and October 26, 2026 — the level has ranged from a low of 0.0% (February 16, 2024) to a high of 28.1% (September 2, 2024). On average the reservoir is fullest around September and at its lowest around January.
The dam at Lake Parangana was completed in 1968. It is operated by BOM primarily for water supply. It lies within the Mersey Forth Basin basin at 41.650°S, 146.228°E.
Key facts
- Current fill level
- 9.2% of total capacity
- Water stored
- 1.36 hm³
- Total capacity
- 14.8 hm³
- Usable capacity
- 7 hm³
- 7-day change
- ▲ 5.6 pp
- Year-on-year
- ▼ 9.3 pp
- Primary use
- Water supply
- River
- Mersey Forth
- River basin
- Mersey Forth Basin
- Year completed
- 1968
- Operator
- BOM
- Coordinates
- 41.650°S, 146.228°E
- Last updated
- October 26, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 26 Oct 2026 | 9.2% | 1.36 |
| 25 Oct 2026 | 5.5% | 0.82 |
| 24 Oct 2026 | 2.7% | 0.4 |
| 23 Oct 2026 | 4.3% | 0.64 |
| 22 Oct 2026 | 6.7% | 0.99 |
| 21 Oct 2026 | 8.1% | 1.2 |
| 20 Oct 2026 | 5.2% | 0.77 |
| 19 Oct 2026 | 3.6% | 0.54 |
| 18 Oct 2026 | 2.2% | 0.33 |
| 17 Oct 2026 | 4.7% | 0.7 |
| 16 Oct 2026 | 9.1% | 1.35 |
| 15 Oct 2026 | 12.2% | 1.81 |