Water Supply Outlook for Alberta
February 2003
Table 4 - Water Supply Forecast as of February 1, 2003 - Bow River Basin
(Natural Flows) |
Volume Forecast for March 1 to September 30 | ||||||
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 | 879,000 | 82 | 68-103 | 60 | 9/84 | 88 |
Lake Minnewanka Inflow | 134,000 | 71 | 54-98 | 48 | 9/84 | 101 |
Spray River near Banff | 289,000 | 79 | 63-103 | 58 | 10/84 | 92 |
Kananaskis River | 338,000 | 81 | 70-106 | 61 | 16/84 | 117 |
Bow River at Calgary | 1,959,000 | 80 | 63-103 | 56 | 16/84 | 95 |
Elbow River | 151,000 | 68 | 55-112 | 44 | 18/84 | 114 |
Highwood River | 347,000 | 55 | 41-105 | 32 | 12/84 | 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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