Lake Powell, Houseboating, Glen Canyon, Striped Bass

Lake Powell





Lake Powell

For September 27th, 2021
Snowpack is 54% of avg
TotalPrecip is 80.00% of avg

Lake Powell is currently 413.97 feet deep at the dam
Water Summary
Today is day 363 of 365 for the Water Year 2021. We are 99% through the Water Year.
Last Reading: 3545.97 on Sep 26, 2021
Powell was last within 2" of this elevation on Sep 25, 2021
There are currently 2,378,788,422,420 gallons of water in Lake Powell!
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Printable Version
Gas Prices on Lake
Detailed Map of Powell
15 Day Weather Forecast
SW Satellite Weather
SW Water Vapor


Elevation & Content Water Inflow Data Glen Canyon Dam Release Data
Lake Powell is 154.03 feet below Full Pool (Elevation 3,700)

By content, Lake Powell is 30.01% of Full Pool (24,322,000 af)
Total inflows for water year 2021: 3,990,304 acre feet

This is 38.14% of the September 26th average of 10,460,892 acre feet
Total releases for water year 2021: 8,140,891 acre feet

This is 108.55% of the minimum required of 7,500,000 acre feet
During WY 2021, water storage has fallen by 4,056,313 AF and total outflows have exceeded total inflows by 4,150,587 AF
The 28 tracked reservoirs above Lake Powell are currently at 63.9% of capacity. Click for Details
Inflows for WY 2021 are 60.98% of WY 2020         Rivers feeding Lake Powell are running at 62.11% of the Sep 28th avg. Click for Details

Lake Powell is down -50.54 feet from one year ago.    Lake Powell is at low for water year and down 49.86 feet from the high.

View Acre Feet     Last 14 Measurements
Lake Powell is down -2.10 feet over these measurements

DATE MEASURED ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Sun, Sep 26, 2021
3545.97
-0.12
7300224
5331
9380
81.0
68.0
77.0
Sat, Sep 25, 2021
3546.09
-0.19
7308606
3753
10470
88.0
63.0
77.0
Fri, Sep 24, 2021
3546.28
-0.16
7321890
4827
10408
87.0
63.0
77.0
Thu, Sep 23, 2021
3546.44
-0.16
7333090
4858
10445
88.0
61.0
76.0
Wed, Sep 22, 2021
3546.60
-0.15
7344301
5155
10365
86.0
56.0
75.0
Tue, Sep 21, 2021
3546.75
-0.18
7354821
4281
10643
79.0
56.0
75.0
Mon, Sep 20, 2021
3546.93
-0.13
7367458
6107
10562
79.0
63.0
77.0
Sun, Sep 19, 2021
3547.06
-0.14
7376594
4493
9335
86.0
60.0
77.0
Sat, Sep 18, 2021
3547.20
-0.22
7386441
3252
11165
86.0
63.0
77.0
Fri, Sep 17, 2021
3547.42
-0.17
7401932
4421
10424
92.0
64.0
77.0
Thu, Sep 16, 2021
3547.59
-0.16
7413916
4825
10451
93.0
68.0
78.0
Wed, Sep 15, 2021
3547.75
-0.16
7425208
3731
9361
95.0
70.0
79.0
Tue, Sep 14, 2021
3547.91
-0.16
7436510
5418
11054
95.0
72.0
79.0
Mon, Sep 13, 2021
3548.07
-0.18
7447824
4707
11120
96.0
70.0
78.0
Averages of List
3547.00
-0.16
7372773
4654
10370
87.9
64.1
77.1

Averages for September 28th

AVERAGE TYPE ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Since Filled
3645.59
-0.07
17128715
9193
12708
83.8
57.0
72.5
All-Time
3632.84
-0.07
15662909
9129
12184
83.9
56.8
72.5

Last 10 September 28th's data records

DATE MEASURED ELEVATION CHG vs TODAY CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Mon, Sep 28, 2020
3596.26
50.29
11396727
2410
10314
76.0
58.0
71.0
Sat, Sep 28, 2019
3615.59
69.62
13301214
6883
11659
84.0
61.0
72.0
Fri, Sep 28, 2018
3592.58
46.61
11055682
3428
11686
92.0
59.0
74.0
Thu, Sep 28, 2017
3628.40
82.43
14674427
7839
11731
71.0
51.0
72.0
Wed, Sep 28, 2016
3610.91
64.94
12822117
10226
12139
82.0
60.0
71.0
Mon, Sep 28, 2015
3606.24
60.27
12355552
6446
12619
91.9
69.1
76.0
Sun, Sep 28, 2014
3605.42
59.45
12274815
11319
9439
n/a
n/a
76.0
Sat, Sep 28, 2013
3591.35
45.38
10943159
8995
9749
69.1
46.0
70.0
Fri, Sep 28, 2012
3621.69
75.72
13943121
4253
8010
82.9
60.1
73.0
Wed, Sep 28, 2011
3653.25
107.28
17623658
11586
15529
91.0
63.0
74.0
Averages of List
3612.17
-0.05
13039047
7339
11288
82.2
58.6
72.9


Accessibility of Launch Ramps, Primitive Launches and Other Sites
As of Sunday, September 26th, 2021 where elevation was 3545.97'


NPS UPDATE ON RAMPS


SITE/LAUNCH NAME MINIMUM SAFE
ELEVATION
ABSOLUTE MINIMUM
USABLE ELEVATION
CURRENT LEVEL VS.
ABSOLUTE MINIMUM
CURRENT ACCESSIBILITY
Wahweap
3553.00
3551.00
5.03 Below
Unusable, go to main marinas
Halls Crossing Launch
3556.00
3553.00
7.03 Below
Unusable, go to main marinas
Stateline Launch
3564.00
3562.00
16.03 Below
Unusable, go to main marinas
Bullfrog (Main Launch)
3578.00
3576.00
30.03 Below
Unusable, go to main marinas
Castle Rock Cut-Off
3583.00
3580.00
34.03 Below
Unusable, use Main Channel
Antelope Point
3588.00
3587.00
41.03 Below
Unusable, go to main marinas
Dominguez Butte Cut-Off
3602.00
3600.00
54.03 Below
Unusable, go to main marinas
Gunsight to Padre Bay Cut-Off
3613.00
3609.00
63.03 Below
Unusable, go to main marinas
Hite Marina
3650.00
3645.00
99.03 Below
Unusable, go to main marinas
Farley Canyon
3653.00
3649.00
103.03 Below
Unusable, go to main marinas
Copper Canyon
3663.00
3660.00
114.03 Below
Unusable, go to main marinas
Bullfrog to Halls Creek Cut-Off
3670.00
3668.00
122.03 Below
Unusable, use Main Channel
Piute Farms
3682.00
3680.00
134.03 Below
Unusable, go to main marinas
Blue Notch is unknown and really just shoreline launching at whatever point feels good. No minimum given except amount of courage it takes to reach this launch.


Search DB For More Water Data Facts



Measurements are taken at 11:59 pm of the date listed
Temperature data is from Wahweap, AZ
Water temperature data is from wayneswords.com*
CHANGE represents water elevation change from previous day

Units used in each measurement:
Elevation - Feet above sea level
Change - Feet difference over previous measurement
Content - Acre Feet
Inflow - Average Cubic Feet / Second over entire 24 hour period
Outflow - Average Cubic Feet / Second over entire 24 hour period
All Temps - Degrees Farhenheit
The Water Year runs from October 1 to September 30 of the next year
Acre Feet = 1.9835 * Flow CFS
TP = Total Precipitation



Page took 1.544 seconds to create!
Copyright Summit Technologies, Inc.
Water data courtesy of US Bureau of Reclamation
The water year runs from Oct 1 - Sept 30
Since Filled is from 06/22/1980 forward
*Water temp data is provided by Wayne Gustaveson
  as measured in the a.m. at the Wahweap docks
*Air temp data is sourced from (Prev 24 Hr Extremes):
   Page, AZ Weather
All data is provisional and subject to review and modification
Call 1-800-752-8525 for up-to-date water level infomation
or go to Lake Powell Source Data
USBR Projected Outlook
Current Snowpack Conditions for Upper Colorado Basin


Copyright Summit Technologies, Inc.
1999 - 2021



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Lake Powell, Houseboating, Glen Canyon, Striped Bass