Lake Powell, Houseboating, Glen Canyon, Striped Bass

Lake Powell





Lake Powell

For January 21st, 2021
Snowpack is 67% of avg
TotalPrecip is 59.00% of avg

Lake Powell is currently 446.39 feet deep at the dam
Water Summary
Today is day 113 of 365 for the Water Year 2021. We are 31% through the Water Year.
Last Reading: 3578.39 on Jan 20, 2021
Powell was last within 2" of this elevation on May 17, 2019
There are currently 3,194,073,585,550 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 121.61 feet below Full Pool (Elevation 3,700)

By content, Lake Powell is 40.3% of Full Pool (24,322,000 af)
Total inflows for water year 2021: 875,485 acre feet

This is 43.93% of the January 20th average of 1,992,982 acre feet
Total releases for water year 2021: 2,492,577 acre feet

This is 33.23% of the minimum required of 7,500,000 acre feet
During WY 2021, water storage has fallen by 1,554,298 AF and total outflows have exceeded total inflows by 1,617,092 AF
The 28 tracked reservoirs above Lake Powell are currently at 70.22% of capacity. Click for Details
Inflows for WY 2021 are 53.6% of WY 2020         Rivers feeding Lake Powell are running at 84.37% of the Jan 21st avg. Click for Details

Lake Powell is down -28.18 feet from one year ago.    Lake Powell is at low for water year and down 17.44 feet from the high.

View Acre Feet     Last 14 Measurements
Lake Powell is down -2.55 feet over these measurements

DATE MEASURED ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Wed, Jan 20, 2021
3578.39
-0.20
9802239
1160
13079
0.0
0.0
47.0
Tue, Jan 19, 2021
3578.59
-0.25
9819226
1702
13172
45.0
36.0
47.0
Mon, Jan 18, 2021
3578.84
-0.17
9840487
5512
13286
54.0
32.0
48.0
Sun, Jan 17, 2021
3579.01
-0.13
9854962
4806
10730
53.0
28.0
48.0
Sat, Jan 16, 2021
3579.14
-0.17
9866040
3805
11593
56.0
30.0
48.0
Fri, Jan 15, 2021
3579.31
-0.24
9880540
2130
13180
50.0
28.0
48.0
Thu, Jan 14, 2021
3579.55
-0.20
9901034
3417
12619
50.0
26.0
48.0
Wed, Jan 13, 2021
3579.75
-0.21
9918133
3701
13381
43.0
23.0
47.0
Tue, Jan 12, 2021
3579.96
-0.21
9936109
3547
13237
42.0
20.0
48.0
Mon, Jan 11, 2021
3580.17
-0.26
9954105
1118
13158
44.0
22.0
48.0
Sun, Jan 10, 2021
3580.43
-0.13
9976417
4702
10674
43.0
26.0
48.0
Sat, Jan 09, 2021
3580.56
-0.18
9987585
3102
11420
49.0
24.0
47.0
Fri, Jan 08, 2021
3580.74
-0.20
10003062
3828
13092
44.0
26.0
48.0
Thu, Jan 07, 2021
3580.94
-0.21
10020277
3405
13149
47.0
26.0
48.0
Averages of List
3579.67
-0.20
9911444
3281
12555
44.3
24.8
47.7

Averages for January 21st

AVERAGE TYPE ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Since Filled
3637.66
-0.11
16166422
7902
14678
48.4
28.3
47.6
All-Time
3621.99
-0.08
14836791
8369
13525
48.3
28.7
47.6

Last 10 January 21st's data records

DATE MEASURED ELEVATION CHG vs TODAY CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Tue, Jan 21, 2020
3606.44
28.05
12375298
6007
12869
39.0
34.0
47.0
Mon, Jan 21, 2019
3578.05
-0.34
9773405
10427
13088
49.0
31.0
47.0
Sun, Jan 21, 2018
3620.46
42.07
13812026
9488
12812
45.0
32.0
50.0
Sat, Jan 21, 2017
3597.33
18.94
11497124
8999
13487
45.0
35.0
48.0
Thu, Jan 21, 2016
3597.78
19.39
11539513
6684
14780
46.9
30.0
48.0
Wed, Jan 21, 2015
3594.81
16.42
11261562
9023
14465
50.0
37.9
48.0
Tue, Jan 21, 2014
3580.56
2.17
9987585
4581
13367
50.0
28.0
45.0
Mon, Jan 21, 2013
3605.84
27.45
12316124
3091
13151
44.1
21.2
44.0
Sat, Jan 21, 2012
3637.60
59.21
15721481
7117
12667
51.1
39.0
49.0
Fri, Jan 21, 2011
3622.42
44.03
14021358
6918
17275
48.9
28.0
47.0
Averages of List
3604.13
-0.13
12230548
7234
13796
46.9
31.6
47.3


Accessibility of Primitive Launches and Other Sites
As of Wednesday, January 20th, 2021 where elevation was 3578.39'

SITE/LAUNCH NAME MINIMUM SAFE
ELEVATION
ABSOLUTE MINIMUM
USABLE ELEVATION
CURRENT LEVEL VS.
ABSOLUTE MINIMUM
CURRENT ACCESSIBILITY
Halls Crossing Launch
3550.00
3548.00
30.39 Above
Open and Usable
Wahweap
3558.00
3556.00
22.39 Above
Open and Usable
Bullfrog (Main Launch)
3578.00
3576.00
2.39 Above
Open and Usable
Castle Rock Cut-Off
3583.00
3580.00
1.61 Below
Unusable, use Main Channel
Antelope Point
3588.00
3587.00
8.61 Below
Unusable, go to main marinas
Dominguez Butte Cut-Off
3602.00
3600.00
21.61 Below
Unusable, go to main marinas
Gunsight to Padre Bay Cut-Off
3613.00
3609.00
30.61 Below
Unusable, go to main marinas
Hite Marina
3650.00
3645.00
66.61 Below
Unusable, go to main marinas
Farley Canyon
3653.00
3649.00
70.61 Below
Unusable, go to main marinas
Copper Canyon
3663.00
3660.00
81.61 Below
Unusable, go to main marinas
Bullfrog to Halls Creek Cut-Off
3670.00
3668.00
89.61 Below
Unusable, use Main Channel
Piute Farms
3682.00
3680.00
101.61 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 1.041 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


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1999 - 2021



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Lake Powell, Houseboating, Glen Canyon, Striped Bass