Lake Powell, Houseboating, Glen Canyon, Striped Bass

Lake Powell





Lake Powell

Lake Powell
For May 20th, 2026
Snowpack is 16.17% of avg
TotalPrecip is 79.48% of avg

Lake Powell is currently 395.46 feet deep at the dam
Water Summary
Today is day 231 of 365 for the Water Year 2026. We are 63% through the Water Year.
Last Reading: 3527.46 on Tuesday, May 19th, 2026
Powell was last within 3" of this elevation on May 18, 2026
There are currently 1,853,298,250,118 gallons of water in Lake Powell!
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15 Day Weather Forecast
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Elevation & Content Water Inflow Data Glen Canyon Dam Release Data
Lake Powell is 172.54 feet below Full Pool (Elevation 3,700)

By content, Lake Powell is 23.38% of Full Pool (24,322,000 af)
Total inflows for water year 2026: 2,832,894 acre feet

This is 57.78% of the May 19th average of 4,902,941 acre feet
Total releases for water year 2026: 3,883,025 acre feet

This is 51.77% of the minimum required of 7,500,000 acre feet
During WY 2026, water storage has fallen by 1,061,129 AF and total outflows have exceeded total inflows by 1,050,131 AF
The 34 tracked reservoirs above Lake Powell are currently at 67.7% of capacity. Click for Details
Inflows for WY 2026 are 92.33% of WY         Rivers feeding Lake Powell are running at 23.89% of the May 20th avg. Click for Details

Lake Powell is down 30.99 feet from one year ago.    Lake Powell is up 1.51 feet from the low for water year.

View Acre Feet     Last 14 Measurements
Lake Powell is up 1.42 feet over these measurements

DATE MEASURED ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Tue, May 19, 2026
3527.46
0.16
5,687,556
13086
7791
71.4
46.0
n/a
Mon, May 18, 2026
3527.30
0.15
5,678,214
12537
7565
67.7
48.4
n/a
Sun, May 17, 2026
3527.15
0.01
5,669,464
7661
7137
82.8
58.1
n/a
Sat, May 16, 2026
3527.14
0.24
5,668,881
14954
7134
86.3
62.3
n/a
Fri, May 15, 2026
3526.90
0.18
5,654,900
13533
7625
90.2
61.5
n/a
Thu, May 14, 2026
3526.72
0.17
5,644,427
13205
7619
87.3
60.3
n/a
Wed, May 13, 2026
3526.55
0.15
5,634,546
12571
7623
90.1
67.3
n/a
Tue, May 12, 2026
3526.40
0.16
5,625,837
12929
7670
93.6
63.7
n/a
Mon, May 11, 2026
3526.24
0.19
5,616,555
13850
7650
89.8
60.3
n/a
Sun, May 10, 2026
3526.05
0.07
5,605,545
9605
7194
84.0
59.0
n/a
Sat, May 09, 2026
3525.98
0.03
5,601,491
8339
7189
90.1
61.0
n/a
Fri, May 08, 2026
3525.95
0.00
5,599,755
7856
7651
87.4
58.5
n/a
Thu, May 07, 2026
3525.95
-0.06
5,599,755
5991
7678
79.2
51.6
n/a
Wed, May 06, 2026
3526.01
-0.03
5,603,228
6853
7595
76.5
51.1
n/a
Averages of List
3526.56
0.1
5,635,011
10926
7509
84
57.8
n/a

Averages for May 19th

AVERAGE TYPE ELEVATION CUR vs AVERAGE CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
All-Time
3616.14
-88.68
0.34
14,279,804
29899
13491
83.7
57.3
64.6
Since Filled
3628.78
-101.32
0.35
15,284,372
31743
14259
82.6
56.9
65
Since WY 2000
3596.38
-68.92
0.33
11,670,833
25640
10956
81.2
58
64.6

Last 10 May 19th's data records

DATE MEASURED ELEVATION CUR ELEV vs THEN CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Mon, May 19, 2025
3558.45
-30.99
7,677,374
14606
9738
61.2
40.8
n/a
Sun, May 19, 2024
3562.74
-35.28
7,982,648
16253
8501
81.8
62.2
n/a
Fri, May 19, 2023
3544.38
-16.92
6,728,652
63615
17809
80.8
62.1
69.0
Thu, May 19, 2022
3526.56
0.90
6,022,844
27425
10001
91.0
70.0
67.0
Wed, May 19, 2021
3560.26
-32.80
8,342,826
6402
11474
90.0
64.0
66.0
Tue, May 19, 2020
3602.05
-74.59
11,946,726
16077
10381
84.0
62.0
65.0
Sun, May 19, 2019
3579.28
-51.82
9,877,980
34846
10813
65.0
51.0
62.0
Sat, May 19, 2018
3610.18
-82.72
12,748,427
20594
9156
86.0
60.0
65.0
Fri, May 19, 2017
3612.21
-84.75
12,954,041
47454
10999
68.0
42.0
60.0
Thu, May 19, 2016
3596.63
-69.17
11,431,381
38251
11824
82.0
55.0
64.0
Averages of List
3575.72
-48.26
9,606,643
30382
11187
76.3
55.9
64.8


Accessibility of Launch Ramps, Primitive Launches and Other Sites
As of Tuesday, May 19th, 2026 where elevation was 3527.46'


Click here for NPS update on ramps


SITE/LAUNCH NAME MINIMUM SAFE
ELEVATION
ABSOLUTE MINIMUM
USABLE ELEVATION
CURRENT LEVEL VS.
NPS MIN SAFE
CURRENT LEVEL VS.
ABSOLUTE MINIMUM
CURRENT ACCESSIBILITY
Stateline Auxiliary Ramp
3520.00
3519.00
7.46 Above
8.46 Above
Open and Usable
Bullfrog North Ramp
3529.00
3528.00
1.54 Below
0.54 Below
Unusable, go to main marinas
Antelope Point Business Ramp
3540.00
3539.00
12.54 Below
11.54 Below
Unusable, go to main marinas
Bullfrog Spur (Boats < 25')
3549.00
3548.00
21.54 Below
20.54 Below
Unusable, go to main marinas
Wahweap (Main Launch)
3550.00
3549.00
22.54 Below
21.54 Below
Unusable, go to main marinas
Halls Crossing (use at own risk)
3556.00
3555.00
28.54 Below
27.54 Below
Unusable, go to main marinas
Stateline Launch
3564.00
3563.00
36.54 Below
35.54 Below
Unusable, go to main marinas
Bullfrog (Main Launch)
3578.00
3577.00
50.54 Below
49.54 Below
Unusable, go to main marinas
Castle Rock Cut-Off
3583.00
3582.00
55.54 Below
54.54 Below
Unusable, use Main Channel
Antelope Point Public Ramp
3588.00
3587.00
60.54 Below
59.54 Below
Unusable, go to main marinas
Dominguez Butte Cut-Off
3602.00
3601.00
74.54 Below
73.54 Below
Unusable, go to main marinas
Gunsight to Padre Bay Cut-Off
3613.00
3612.00
85.54 Below
84.54 Below
Unusable, go to main marinas
Hite
3650.00
3649.00
122.54 Below
121.54 Below
Unusable, go to main marinas
Farley Canyon
3653.00
3652.00
125.54 Below
124.54 Below
Unusable, go to main marinas
Copper Canyon
3663.00
3662.00
135.54 Below
134.54 Below
Unusable, go to main marinas
Bullfrog to Halls Creek Cut-Off
3670.00
3669.00
142.54 Below
141.54 Below
Unusable, use Main Channel
Piute Farms
3682.00
3681.00
154.54 Below
153.54 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.


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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 4.07 seconds to create!
Copyright Water-Data.com
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 Stevie Kelso and the UT Division of Wildlife Resources
  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
Using Water Year 2000 as start of prolonged drought in SW USA
or go to Lake Powell Source Data
USBR Projected Outlook
Current Snowpack Conditions for Upper Colorado Basin


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Lake Powell, Houseboating, Glen Canyon, Striped Bass