Lake Powell, Houseboating, Glen Canyon, Striped Bass

Lake Powell





Lake Powell

For June 20th, 2021
Snowpack is 50% of avg
TotalPrecip is 71.00% of avg

Lake Powell is currently 429.51 feet deep at the dam
Water Summary
Today is day 264 of 365 for the Water Year 2021. We are 72% through the Water Year.
Last Reading: 3561.51 on Jun 19, 2021
Powell was last within 2" of this elevation on Jun 18, 2021
There are currently 2,749,644,495,685 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 138.49 feet below Full Pool (Elevation 3,700)

By content, Lake Powell is 34.69% of Full Pool (24,322,000 af)
Total inflows for water year 2021: 2,765,921 acre feet

This is 37.03% of the June 19th average of 7,469,968 acre feet
Total releases for water year 2021: 5,785,354 acre feet

This is 77.14% of the minimum required of 7,500,000 acre feet
During WY 2021, water storage has fallen by 2,918,199 AF and total outflows have exceeded total inflows by 3,019,433 AF
The 28 tracked reservoirs above Lake Powell are currently at 73.12% of capacity. Click for Details
Inflows for WY 2021 are 50.47% of WY 2020         Rivers feeding Lake Powell are running at 18.61% of the Jun 21st avg. Click for Details

Lake Powell is down -49.31 feet from one year ago.    Lake Powell is up 1.62 feet from the low for water year.

View Acre Feet     Last 14 Measurements
Lake Powell is up 0.16 feet over these measurements

DATE MEASURED ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Sat, Jun 19, 2021
3561.51
-0.10
8438338
7298
10956
103.0
83.0
77.0
Fri, Jun 18, 2021
3561.61
-0.07
8446012
8217
10623
107.0
85.0
77.0
Thu, Jun 17, 2021
3561.68
-0.08
8451387
9123
11947
108.0
83.0
76.0
Wed, Jun 16, 2021
3561.76
-0.02
8457532
12322
12637
109.0
79.0
76.0
Tue, Jun 15, 2021
3561.78
0.00
8459068
12947
12425
107.0
76.0
75.0
Mon, Jun 14, 2021
3561.78
0.02
8459068
12974
11616
105.0
72.0
74.0
Sun, Jun 13, 2021
3561.76
0.06
8457532
12618
9587
103.0
70.0
73.0
Sat, Jun 12, 2021
3561.70
0.04
8452923
13583
11389
100.0
65.0
72.0
Fri, Jun 11, 2021
3561.66
0.05
8449851
14238
11626
92.0
60.0
72.0
Thu, Jun 10, 2021
3561.61
0.06
8446012
14706
11678
94.0
72.0
72.0
Wed, Jun 09, 2021
3561.55
0.06
8441407
14810
11783
91.0
64.0
72.0
Tue, Jun 08, 2021
3561.49
0.08
8436804
14165
10305
91.0
70.0
73.0
Mon, Jun 07, 2021
3561.41
0.06
8430670
14103
11079
93.0
67.0
72.0
Sun, Jun 06, 2021
3561.35
0.08
8426071
12926
9068
99.0
78.0
72.0
Averages of List
3561.62
0.02
8446620
12431
11194
100.1
73.1
73.8

Averages for June 21st

AVERAGE TYPE ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Since Filled
3650.29
0.25
17672371
35139
16623
96.8
67.5
73.4
All-Time
3637.02
0.31
16489177
36135
15682
96.5
66.9
73.4

Last 10 June 21st's data records

DATE MEASURED ELEVATION CHG vs TODAY CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Sun, Jun 21, 2020
3610.98
49.47
12829198
14549
8833
98.0
73.0
71.0
Fri, Jun 21, 2019
3604.33
42.82
12168042
72031
14568
89.0
63.0
70.0
Thu, Jun 21, 2018
3611.19
49.68
12850456
5919
13987
105.0
71.0
73.0
Wed, Jun 21, 2017
3631.80
70.29
15055404
42531
12751
106.0
75.0
76.0
Tue, Jun 21, 2016
3616.61
55.10
13407164
41217
13809
108.0
77.0
76.0
Sun, Jun 21, 2015
3609.90
48.39
12720237
45349
12326
92.0
65.0
79.0
Sat, Jun 21, 2014
3606.42
44.91
12373322
37863
9201
93.9
72.0
70.0
Fri, Jun 21, 2013
3601.08
39.57
11853400
0
13832
93.9
70.0
73.0
Thu, Jun 21, 2012
3635.20
73.69
15443390
2464
12229
n/a
n/a
74.0
Tue, Jun 21, 2011
3642.44
80.93
16293029
86872
23521
91.0
62.6
68.0
Averages of List
3617.00
0.37
13499364
34880
13506
97.4
69.8
73.0


Accessibility of Primitive Launches and Other Sites
As of Saturday, June 19th, 2021 where elevation was 3561.51'

SITE/LAUNCH NAME MINIMUM SAFE
ELEVATION
ABSOLUTE MINIMUM
USABLE ELEVATION
CURRENT LEVEL VS.
ABSOLUTE MINIMUM
CURRENT ACCESSIBILITY
Halls Crossing Launch
3550.00
3548.00
13.51 Above
Open and Usable
Wahweap
3558.00
3556.00
5.51 Above
Open and Usable
Stateline Launch
3564.00
3562.00
0.49 Below
Unusable, go to main marinas
Bullfrog (Main Launch)
3578.00
3576.00
14.49 Below
Unusable, go to main marinas
Castle Rock Cut-Off
3583.00
3580.00
18.49 Below
Unusable, use Main Channel
Antelope Point
3588.00
3587.00
25.49 Below
Unusable, go to main marinas
Dominguez Butte Cut-Off
3602.00
3600.00
38.49 Below
Unusable, go to main marinas
Gunsight to Padre Bay Cut-Off
3613.00
3609.00
47.49 Below
Unusable, go to main marinas
Hite Marina
3650.00
3645.00
83.49 Below
Unusable, go to main marinas
Farley Canyon
3653.00
3649.00
87.49 Below
Unusable, go to main marinas
Copper Canyon
3663.00
3660.00
98.49 Below
Unusable, go to main marinas
Bullfrog to Halls Creek Cut-Off
3670.00
3668.00
106.49 Below
Unusable, use Main Channel
Piute Farms
3682.00
3680.00
118.49 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 1.271 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