Water Supply Outlook for Alberta
April 2016
| Water Supply Forecast as of April 1, 2016 - Oldman River Basin
(Natural Flows) |
| Volume Forecast for April 1 to September 30, 2016 | Year to date | |||||||
| Locations | Volume in dam3 | Volume as a % of Average | Probable Range as a % of Average | Reasonable Minimum as % of Average | Forecast Ranking (lowest to highest) | Recorded March 2016 Volume as a % of Average | Ranking (lowest to highest) | |
| St. Mary River | 531,000** | 95 | 73-97 | 65 | 20/99 | 88*** | 55/99 | |
| Belly River | 215,000* | 95 | 87-107 | 79 | 34/99 | 122*** | 86/99 | |
| Waterton River | 509,000* | 96 | 84-113 | 74 | 30/99 | 85*** | 50/99 | |
| Oldman River near Brocket | 741,000* | 83 | 75-99 | 64 | 26/99 | 103*** | 70/99 | |
| Oldman River at Lethbridge | 2,289,000* | 85 | 73-96 | 63 | 31/99 | 73*** | 40/99 | |
|
*NOTE: The forecast shown is the March to September 2016 forecast minus the recorded volume to date ** - This value is the natural volume and includes the U.S. share*** - Recorded 2016 natural volumes are preliminary and subject to change Average is calculated for the March 1 to September 30 period 1981 to 2009 NOTE: There is: a 50% chance that the actual natural flow will fall within the probable range given; a 25% chance that the actual flow will be less than the lower bound of the probable range given; and a 10% chance that the actual natural flow will be less than the reasonable minimum. Actual day to day streamflow conditions may vary throughout the season as a result of the effects of streamflow diversion and reservoir storage. |
For technical enquires about this web page please contact Alberta Environment - Environmental Management Water Management Operations Branch at AENV-WebWS@gov.ab.ca
