Lake Powell, Houseboating, Glen Canyon, Striped Bass

Lake Powell





Lake Powell

For July 29th, 2021
Snowpack is 47% of avg
TotalPrecip is 76.00% of avg

Lake Powell is currently 422.24 feet deep at the dam
Water Summary
Today is day 302 of 365 for the Water Year 2021. We are 83% through the Water Year.
Last Reading: 3554.24 on Jul 28, 2021
Powell was last within 2" of this elevation on Jul 27, 2021
There are currently 2,571,842,034,194 gallons of water in Lake Powell!
Click for ...

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 145.76 feet below Full Pool (Elevation 3,700)

By content, Lake Powell is 32.45% of Full Pool (24,322,000 af)
Total inflows for water year 2021: 3,149,147 acre feet

This is 33.79% of the July 28th average of 9,319,849 acre feet
Total releases for water year 2021: 6,724,795 acre feet

This is 89.66% of the minimum required of 7,500,000 acre feet
During WY 2021, water storage has fallen by 3,463,854 AF and total outflows have exceeded total inflows by 3,575,648 AF
The 28 tracked reservoirs above Lake Powell are currently at 69.67% of capacity. Click for Details
Inflows for WY 2021 are 52.09% of WY 2020         Rivers feeding Lake Powell are running at 61.50% of the Jul 29th avg. Click for Details

Lake Powell is down -52.44 feet from one year ago.    Lake Powell is at low for water year and down 41.59 feet from the high.

View Acre Feet     Last 14 Measurements
Lake Powell is down -2.73 feet over these measurements

DATE MEASURED ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Wed, Jul 28, 2021
3554.24
-0.12
7892683
9219
13448
97.0
78.0
78.0
Tue, Jul 27, 2021
3554.36
-0.15
7901500
7415
12849
94.0
72.0
79.0
Mon, Jul 26, 2021
3554.51
-0.21
7912531
4881
12726
92.0
75.0
80.0
Sun, Jul 25, 2021
3554.72
-0.18
7927991
4786
11436
91.0
72.0
82.0
Sat, Jul 24, 2021
3554.90
-0.19
7941258
5864
12922
92.0
70.0
83.0
Fri, Jul 23, 2021
3555.09
-0.26
7955277
2697
12581
97.0
76.0
84.0
Thu, Jul 22, 2021
3555.35
-0.20
7974487
5700
13180
95.0
74.0
84.0
Wed, Jul 21, 2021
3555.55
-0.31
7989284
505
12434
99.0
76.0
84.0
Tue, Jul 20, 2021
3555.86
-0.14
8012254
7295
12371
94.0
74.0
82.0
Mon, Jul 19, 2021
3556.00
-0.33
8022641
-100
12670
95.0
73.0
82.0
Sun, Jul 18, 2021
3556.33
-0.13
8047159
5534
10218
96.0
81.0
81.0
Sat, Jul 17, 2021
3556.46
-0.26
8056831
2765
12727
100.0
77.0
81.0
Fri, Jul 16, 2021
3556.72
-0.25
8076197
3425
12996
95.0
77.0
80.0
Thu, Jul 15, 2021
3556.97
-0.28
8094847
2291
13096
95.0
71.0
80.0
Averages of List
3555.50
-0.21
7986067
4448
12547
95.1
74.7
81.4

Averages for July 29th

AVERAGE TYPE ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Since Filled
3652.21
-0.11
17957861
12398
16613
97.3
71.4
79.8
All-Time
3639.15
-0.08
16418326
12730
15354
98.1
72.0
79.8

Last 10 July 29th's data records

DATE MEASURED ELEVATION CHG vs TODAY CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Wed, Jul 29, 2020
3606.53
52.29
12384190
5971
13192
103.0
74.0
80.0
Mon, Jul 29, 2019
3621.60
67.36
13933497
17290
15181
104.0
72.0
79.0
Sun, Jul 29, 2018
3604.21
49.97
12156325
1963
11227
106.0
72.0
79.0
Sat, Jul 29, 2017
3634.82
80.58
15399679
12906
13120
97.0
71.0
80.0
Fri, Jul 29, 2016
3618.55
64.31
13610192
10199
16147
106.0
77.0
79.0
Wed, Jul 29, 2015
3612.99
58.75
13033624
7221
17467
97.0
70.0
78.0
Tue, Jul 29, 2014
3608.29
54.05
12558945
5428
13259
95.0
72.0
78.0
Mon, Jul 29, 2013
3594.58
40.34
11240216
5752
14062
89.1
66.0
79.0
Sun, Jul 29, 2012
3628.72
74.48
14709985
2506
13629
91.0
75.0
79.0
Fri, Jul 29, 2011
3660.85
106.61
18604126
33538
24167
99.0
77.0
78.0
Averages of List
3619.11
-0.11
13763078
10277
15145
98.7
72.6
78.9


Accessibility of Launch Ramps, Primitive Launches and Other Sites
As of Wednesday, July 28th, 2021 where elevation was 3554.24'


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
3.24 Above
Open and Usable
Halls Crossing Launch
3556.00
3553.00
1.24 Above
Looking bad, not likely. Go very slow!
Stateline Launch
3564.00
3562.00
7.76 Below
Unusable, go to main marinas
Bullfrog (Main Launch)
3578.00
3576.00
21.76 Below
Unusable, go to main marinas
Castle Rock Cut-Off
3583.00
3580.00
25.76 Below
Unusable, use Main Channel
Antelope Point
3588.00
3587.00
32.76 Below
Unusable, go to main marinas
Dominguez Butte Cut-Off
3602.00
3600.00
45.76 Below
Unusable, go to main marinas
Gunsight to Padre Bay Cut-Off
3613.00
3609.00
54.76 Below
Unusable, go to main marinas
Hite Marina
3650.00
3645.00
90.76 Below
Unusable, go to main marinas
Farley Canyon
3653.00
3649.00
94.76 Below
Unusable, go to main marinas
Copper Canyon
3663.00
3660.00
105.76 Below
Unusable, go to main marinas
Bullfrog to Halls Creek Cut-Off
3670.00
3668.00
113.76 Below
Unusable, use Main Channel
Piute Farms
3682.00
3680.00
125.76 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 1.201 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



Site Views Today: 0       Page Views Today: 0
Lake Powell, Houseboating, Glen Canyon, Striped Bass