Level of the Lake

Lake Powell

Elevation at Glen Canyon Dam

3,517.60ft

feet above sea level

182.40 ft below full · up 0.30 ft this week

Low-water access only1 of 7 ramps usable · Stateline Auxiliary closes 2.60 ft lower
updated 8:45 AM MST

Since midnight

0.00 ft

level change

Past 30 days

−0.20 ft

level change

Storage

5.13 million

acre-feet · 22% full · Reclamation daily, Sep 28

Water temp

66.9°F

at Lees Ferry

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Powell is holding steady. Water in and water out are about even this week. That puts it in the “Low-water access only” range, 7.40 ft below the “Ramps closing one by one” line.

Past 30 days

−0.40 ft over this window
3,516.503,517.003,517.503,518.00Aug 29Sep 13Sep 28
Lake elevation, past 30 days, now 3,517.40 ft, down 0.40 ft over the window
DateElevation (ft)
Aug 293,517.80
Aug 303,517.80
Aug 313,517.70
Sep 13,517.70
Sep 23,517.60
Sep 33,517.60
Sep 43,517.50
Sep 53,517.50
Sep 63,517.40
Sep 73,517.40
Sep 83,517.30
Sep 93,517.20
Sep 103,517.10
Sep 113,516.90
Sep 123,516.80
Sep 133,516.80
Sep 143,516.70
Sep 153,516.50
Sep 163,516.40
Sep 173,516.60
Sep 183,516.60
Sep 193,516.70
Sep 203,516.90
Sep 213,517.10
Sep 223,517.30
Sep 233,517.40
Sep 243,517.50
Sep 253,517.50
Sep 263,517.50
Sep 273,517.50
Sep 283,517.40

Daily mean elevation · USGS 09379900 daily means · provisional

The lake in cross-section

Historic high 3708.341983Full pool 3700Record low 3516.622026Minimum power pool 3…182.40 ft to full3,517.60 ft

Rivers into the lake

Rivers & rain →

Swipe sideways to follow the river to the lake →

2,620 cfs4,150 cfs2,280 cfs6,770 cfs2,280 cfs7,020 cfsout the dam nowColorado2,620 cfsGreen4,150 cfsSan Juan2,280 cfsrecedingColorado armColorado + GreenSan Juan armSan Juan River22% fullPowell storagein 9,050 · out 7,020 cfsnet +2,030 cfs ≈ +0.82 in/day on the lakeColorado at Lees Fer…USGS gauge below Glen C…
SteadyReceding · high water draining downOn the rise · climbing right nowInbound wave · big rise upstreamFlooding · NWS, by river heightNo current readingRising or falling is judged from each gauge’s last 48 hours, scaled to its river. Dot speed follows the flow. NWS flood status comes from river height and outranks direction.

Streamflow at the 3 USGS gauges, plus the current flow out through the dam (USGS). Labels are gauge readings in cfs. Line width isn’t to scale. The lake’s net is worked out from these gauges (flow in minus flow out), so it misses ungauged creeks, evaporation and withdrawals. Reclamation’s daily storage for the lake changed +1,649.36 af ≈ +0.34 in on Sep 28.

The rivers, gauge by gauge

9,050cfs combined

46% of the inflow is coming from the Green

Gauged rivers only. Runoff below these gauges and ungauged arms aren’t counted. Streamflow: USGS (provisional). Flood status: NOAA/NWS, from river height at each gauge rather than flow.