Flow Estimates for the Current Year

The graph below shows the Athabasca River flow estimates (black dots) used in implementation of the Lower Athabasca Region Surface Water Quantity Management Framework for the Lower Athabasca River weekly management triggers and water withdrawal limits for the current year 2018. The table below presents the Athabasca River flow estimates used for the previous year.

The river naturally fluctuates throughout the year, with flows reaching their peak around July (approximately week 26 on the graph). As natural flow increases, so does the minimum flow required to maintain a healthy ecosystem.

Flow estimates for the current year 2018

*Week #1 is January 1 - 7. Week #52 is December 24th - 31st.


Flow estimates for the previous year 2017

Week Flow (m3/s) Week Flow (m3/s)
1 116 27 1160
2 110 28 Data not available*
3 109 29 973
4 191 30 847
5 128 31 Data not available*
6 181 32 878
7 179 33 854
8 170 34 706
9 171 35 583
10 172 36 462
11 175 37 436
12 173 38 522
13 186 39 506
14 207 40 709
15 319 41 636
16 321 42 558
17 375 43 627
18 889 44 653
19 1185 45 604
20 1460 46 519
21 1820 47 361
22 1490 48 337
23 1740 49 289
24 1370 50 268
25 1836 51 308
26 1185 52 278

*A weekly flow estimate was not available in Week 28 and Week 31. Based on data available at the end of 2017, the weekly flow estimates would have been 1240 m3/s and 1110 m3/s in Week 28 and Week 31 respectively. On occasion, weekly flow estimates may not be available for various reasons including spring breakup, the gauge being out of service, or data outages.