Water Supply Outlook for Alberta
June 2006
Table 4b - Water Supply Forecast as of June 1, 2006 - Oldman River Basin
(Natural Flows) |
Volume Forecast for June 1 to September 30, 2006 | 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-May 2006 Volume as a % of Average | Ranking (lowest to highest) | |
St. Mary River | 428,000** | 88 | 72-117 | 64 | 38/91 | 98*** | 47/91 | |
Belly River | 147,000* | 90 | 82-116 | 72 | 39/91 | 103*** | 53/91 | |
Waterton River | 364,000* | 95 | 77-121 | 71 | 42/91 | 106*** | 59/91 | |
Oldman River near Brocket | 616,000* | 97 | 75-133 | 66 | 52/91 | 95*** | 40/91 | |
Oldman River at Lethbridge | 1,568,000* | 85 | 58-103 | 72 | 35/91 | 105*** | 52/91 |
*NOTE: The forecast shown is the March to September 2006 forecast minus the recorded volume to date Click on the site Location to see the Water Supply Forecast graphically ** - This value is the natural volume and includes the U.S. share 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 Jun vary throughout the season as a result of the effects of streamflow diversion and reservoir storage. |
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