Gauge Description:

Combined flows of Green and Colorado. Average annual peak is approximately 45,000 cfs. Highest recorded flow was 110,500 cfs on 27 May 1984, but it's been higher.

Lake Powell elevation and inflow.

Lake Powell water database

From Wikipedia:

Colorado River flows have been below average since the year 2000, leading to lower lake levels. In the winter of 2005 (before the spring run-off) the lake reached its lowest level since filling, an elevation of 3,550 feet (1,080 m) above sea level, which was approximately 150 feet (46 m) below full pool (elevation 3700'). Since 2005 the lake level has risen 78 feet (24 m), to a high elevation of 3,628 feet (1,106 m) above sea level in spring/early summer 2008. It was estimated the 2008 spring runoff may produce a peak elevation of 3638' during mid-summer 2008.

Gauge Information

Name Range Difficulty Updated Level
Colorado in Cataract Canyon
virtual-8918 3000 - unknown cfs IV-V 00h47m 7130 cfs (running)
gauge class Flows reported are defined by AW's 2014 Flow Evaluation Study

gauge graph
RangeWater LevelDifficultyComment
3000 -5000 cfs barely runnable-perfect runnable IV-V gauge is important or has warning Lowest runnable range (flows based on 2014 Colorado Basin Flow Study).
4000 - unknown cfs barely runnable-high runnable IV-V gauge is important or has warning Flows reported are defined by AW's 2014 Flow Evaluation Study
10000 -30000 cfs med runnable-a bit pushy runnable IV-V gauge is important or has warning Optimal flow range for this reach (flows based on 2014 Colorado Basin Flow Study).
45000 - unknown cfs perfect runnable-high runnable IV-V gauge is important or has warning 50,000 CFS is the highest recommended safe flow - levels above 50,000 CFS should only be attempted by those with very strong big water skills.

Reports give the public a chance to report on river conditions throughout the country as well as log the history of a river.

When River/Gauge Subject Level Reporter
Colorado [UT] Big drop 3, 7000 cfs 7000 Matt Leach
Colorado [UT] doll house/surprise valley n/a curtis verploegh
Colorado, Cataract Canyon [UT] Big Drop Two, Redwall 28,000 Brady Black
3y153d08h47m /Colorado-4. Moab to Powell Reservoir (Cataract Canyon) [UT] Account of 07/05/16 n/a Graham Abrams
3y153d08h48m /Colorado-4. Moab to Powell Reservoir (Cataract Canyon) [UT] Indian Creek n/a Graham Abrams
7y230d04h43m /Colorado-4. Moab to Powell Reservoir (Cataract Canyon) [UT] Cataract Canyon at Powell 0 cfs Thomas O'Keefe
> 10 years Colorado [Ut] Capsize Rapid 3500 josh grigg
> 10 years Colorado [UT] Big Drop 3 13000 Clay Guerry
> 10 years Colorado [UT] Colorado River abv Confluence w Green low curtis verploegh
> 10 years Colorado [UT] Aerial photo of big drops section of Cataract ~7000 cfs (low) curtis verploegh