New 1991-2020 Averages being used this year.
Lake Powell Water Supply Outlook, May 1, 2022Lake Powell Water Supply Outlook, May 1, 2022
Note: This publication is scheduled for revision. If you have feedback on content, format, or publication frequency, please contact us.
Contents
Lake Powell Sub-Basin Summaries
![](graph/png/gn.vol.2022.5.png)
*Median of forecasts within each basin.
![](graph/png/uc.vol.2022.5.png)
*Median of forecasts within each basin.
![](graph/png/sj.vol.2022.5.png)
*Median of forecasts within each basin.
Upper Green Basin Conditions
![](graph/png/ug.cond2.2022.5.png)
Snow Water Equivalent in Percent of Median.
* Percent usable capacity, not percent average contents.
Click for multi-month Graph.
Yampa/White Basin Conditions
![](graph/png/yw.cond2.2022.5.png)
Snow Water Equivalent in Percent of Median.
* Percent usable capacity, not percent average contents.
Click for multi-month Graph.
Duchesne Basin Conditions
![](graph/png/dc.cond2.2022.5.png)
Snow Water Equivalent in Percent of Median.
* Percent usable capacity, not percent average contents.
Click for multi-month Graph.
Lower Green Basin Conditions
![](graph/png/lg.cond2.2022.5.png)
Snow Water Equivalent in Percent of Median.
* Percent usable capacity, not percent average contents.
Click for multi-month Graph.
Upper Colorado Mainstem Basin Conditions
![](graph/png/co.cond2.2022.5.png)
Snow Water Equivalent in Percent of Median.
* Percent usable capacity, not percent average contents.
Click for multi-month Graph.
Gunnison Basin Conditions
![](graph/png/gu.cond2.2022.5.png)
Snow Water Equivalent in Percent of Median.
* Percent usable capacity, not percent average contents.
Click for multi-month Graph.
Dolores Basin Conditions
![](graph/png/do.cond2.2022.5.png)
Snow Water Equivalent in Percent of Median.
* Percent usable capacity, not percent average contents.
Click for multi-month Graph.
San Juan Basin Conditions
![](graph/png/sj.cond2.2022.5.png)
Snow Water Equivalent in Percent of Median.
* Percent usable capacity, not percent average contents.
Click for multi-month Graph.
Differences between the full period forecasts and the residual forecasts may not exactly equal the actual observed volumes due to rounding conventions (see Definitions section).
Precipitation Maps
![](/rmap/grid800/asc/monthly/monthly.042022_cbrfc_.png)
![](/rmap/grid800/asc/seasonal/seasonal.042022_cbrfc_.png)