Lake Powell, Houseboating, Glen Canyon, Striped Bass

Lake Powell





Lake Powell

For May 10th, 2021
Snowpack is 53% of avg
TotalPrecip is 72.00% of avg

Lake Powell is currently 429.27 feet deep at the dam
Water Summary
Today is day 222 of 365 for the Water Year 2021. We are 61% through the Water Year.
Last Reading: 3561.27 on May 9, 2021
Powell was last within 2" of this elevation on May 8, 2021
There are currently 2,743,649,806,946 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 138.73 feet below Full Pool (Elevation 3,700)

By content, Lake Powell is 34.62% of Full Pool (24,322,000 af)
Total inflows for water year 2021: 1,911,761 acre feet

This is 42.45% of the May 9th average of 4,503,702 acre feet
Total releases for water year 2021: 4,984,549 acre feet

This is 66.46% of the minimum required of 7,500,000 acre feet
During WY 2021, water storage has fallen by 2,936,596 AF and total outflows have exceeded total inflows by 3,072,788 AF
The 28 tracked reservoirs above Lake Powell are currently at 70.85% of capacity. Click for Details
Inflows for WY 2021 are 55.98% of WY 2020         Rivers feeding Lake Powell are running at 23.12% of the May 10th avg. Click for Details

Lake Powell is down -39.08 feet from one year ago.    Lake Powell is at low for water year and down 34.56 feet from the high.

View CFS     Last 14 Measurements
Lake Powell is down -1.71 feet over these measurements

DATE MEASURED ELEVATION CHANGE CONTENT INFLOW (af) OUTFLOW (af) HIGH TEMP LOW TEMP WATER TEMP
Sun, May 09, 2021
3561.27
-0.10
8419941
9475
17114
79.0
53.0
n/a
Sat, May 08, 2021
3561.37
-0.06
8427603
14595
18927
83.0
63.0
n/a
Fri, May 07, 2021
3561.43
-0.09
8432203
16342
23161
89.0
62.0
61.0
Thu, May 06, 2021
3561.52
-0.15
8439106
10760
22558
91.0
59.0
61.0
Wed, May 05, 2021
3561.67
-0.12
8450619
14107
23423
87.0
59.0
60.0
Tue, May 04, 2021
3561.79
-0.16
8459837
10598
23247
82.0
54.0
60.0
Mon, May 03, 2021
3561.95
-0.17
8472139
8634
22126
75.0
57.0
59.0
Sun, May 02, 2021
3562.12
-0.14
8485223
5298
16306
81.0
57.0
59.0
Sat, May 01, 2021
3562.26
-0.11
8496009
9019
17538
88.0
61.0
59.0
Fri, Apr 30, 2021
3562.37
-0.15
8504490
9104
21039
86.0
57.0
59.0
Thu, Apr 29, 2021
3562.52
-0.15
8516065
9142
21089
81.0
54.0
58.0
Wed, Apr 28, 2021
3562.67
-0.19
8527651
5550
20849
73.0
46.0
58.0
Tue, Apr 27, 2021
3562.86
-0.12
8542341
11266
20730
58.0
44.0
58.0
Mon, Apr 26, 2021
3562.98
-0.14
8551629
11318
22461
69.0
49.0
57.0
Averages of List
3562.06
-0.13
8480347
10372
20755
80.1
55.4
59.1

Averages for May 10th

AVERAGE TYPE ELEVATION CHANGE CONTENT INFLOW (af) OUTFLOW (af) HIGH TEMP LOW TEMP WATER TEMP
Since Filled
3635.91
0.20
15972795
49831
27345
79.7
53.8
60.6
All-Time
3621.05
0.21
14778129
49175
26410
80.1
53.3
60.6

Last 10 May 10th's data records

DATE MEASURED ELEVATION CHG vs TODAY CONTENT INFLOW (af) OUTFLOW (af) HIGH TEMP LOW TEMP WATER TEMP
Sun, May 10, 2020
3600.61
39.34
11808359
47521
19793
82.0
61.0
65.0
Fri, May 10, 2019
3576.02
14.75
9602416
58255
24103
67.0
50.0
62.0
Thu, May 10, 2018
3609.35
48.08
12664984
25335
24405
91.0
66.0
63.0
Wed, May 10, 2017
3606.92
45.65
12422774
69881
20890
66.0
50.0
61.0
Tue, May 10, 2016
3593.12
31.85
11105315
48231
23560
77.0
59.0
60.0
Sun, May 10, 2015
3590.39
29.12
10855847
47120
19877
72.0
46.0
61.0
Sat, May 10, 2014
3579.99
18.72
9938678
50196
15255
78.1
57.0
57.0
Fri, May 10, 2013
3596.09
34.82
11380827
23003
21148
78.1
51.1
62.0
Thu, May 10, 2012
3635.89
74.62
15522983
21422
20297
89.1
60.1
64.0
Tue, May 10, 2011
3613.37
52.10
13072511
50575
29608
57.9
42.1
59.0
Averages of List
3600.18
0.23
11837469
44154
21894
75.8
54.2
61.4


Accessibility of Primitive Launches and Other Sites
As of Sunday, May 9th, 2021 where elevation was 3561.27'

SITE/LAUNCH NAME MINIMUM SAFE
ELEVATION
ABSOLUTE MINIMUM
USABLE ELEVATION
CURRENT LEVEL VS.
ABSOLUTE MINIMUM
CURRENT ACCESSIBILITY
Halls Crossing Launch
3550.00
3548.00
13.27 Above
Open and Usable
Wahweap
3558.00
3556.00
5.27 Above
Open and Usable
Bullfrog (Main Launch)
3578.00
3576.00
14.73 Below
Unusable, go to main marinas
Castle Rock Cut-Off
3583.00
3580.00
18.73 Below
Unusable, use Main Channel
Antelope Point
3588.00
3587.00
25.73 Below
Unusable, go to main marinas
Dominguez Butte Cut-Off
3602.00
3600.00
38.73 Below
Unusable, go to main marinas
Gunsight to Padre Bay Cut-Off
3613.00
3609.00
47.73 Below
Unusable, go to main marinas
Hite Marina
3650.00
3645.00
83.73 Below
Unusable, go to main marinas
Farley Canyon
3653.00
3649.00
87.73 Below
Unusable, go to main marinas
Copper Canyon
3663.00
3660.00
98.73 Below
Unusable, go to main marinas
Bullfrog to Halls Creek Cut-Off
3670.00
3668.00
106.73 Below
Unusable, use Main Channel
Piute Farms
3682.00
3680.00
118.73 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 - Acre Feet per day
Outflow - Acre Feet per day
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 1.163 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