Water Supply Outlook for Alberta
June 2003
Table 4a Water Supply Forecast as of June 1, 2003 - Bow River Basin
(Natural Flows) |
Volume Forecast for March 1 to September 30, 2003 | ||||||
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-September 2002 Volume as a % of Average |
Bow River at Banff | 941,000 | 88 | 75-105 | 72 | 20/85 | 89 |
Lake Minnewanka Inflow | 172,000 | 91 | 82-108 | 79 | 33/85 | 101 |
Spray River near Banff | 298,000 | 81 | 72-98 | 71 | 13/85 | 92 |
Kananaskis River | 356,000 | 86 | 77-104 | 76 | 21/85 | 117 |
Bow River at Calgary | 2,109,000 | 86 | 72-104 | 67 | 21/85 | 95 |
Elbow River | 178,000 | 81 | 68-112 | 64 | 33/85 | 113 |
Highwood River | 460,000 | 73 | 59-102 | 55 | 27/85 | 109 |
Note: Click on the site Location to see the Water Supply Forecast graphically Average is calculated for the March 1 to September 30 period from 1912 to 1995 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. |
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