Lake Powell, Houseboating, Glen Canyon, Striped Bass

Lake Powell





Lake Powell

For December 4th, 2020
Snowpack is 73% of avg
TotalPrecip is 59.00% of avg

Lake Powell is currently 455.18 feet deep at the dam
Water Summary
Today is day 65 of 365 for the Water Year 2021. We are 18% through the Water Year.
Last Reading: 3587.18 on Dec 3, 2020
Powell was last within 2" of this elevation on Nov 22, 2018
There are currently 3,443,321,253,809 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 112.82 feet below Full Pool (Elevation 3,700)

By content, Lake Powell is 43.45% of Full Pool (24,322,000 af)
Total inflows for water year 2021: 546,371 acre feet

This is 45.21% of the December 3rd average of 1,208,483 acre feet
Total releases for water year 2021: 1,351,767 acre feet

This is 18.02% of the minimum required of 7,500,000 acre feet
During WY 2021, water storage has fallen by 2,696,799 AF and total outflows have exceeded total inflows by 805,396 AF
The 28 tracked reservoirs above Lake Powell are currently at 70.95% of capacity. Click for Details
Inflows for WY 2021 are 59.4% of WY 2020         Rivers feeding Lake Powell are running at 61.81% of the Dec 4th avg. Click for Details

Lake Powell is down -23.84 feet from one year ago.    Lake Powell is at low for water year and down 8.65 feet from the high.

View Acre Feet     Last 14 Measurements
Lake Powell is down -1.92 feet over these measurements

DATE MEASURED ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Thu, Dec 03, 2020
3587.18
-0.21
10567151
2232
12059
46.0
25.0
n/a
Wed, Dec 02, 2020
3587.39
-0.17
10585885
4243
12135
47.0
29.0
n/a
Tue, Dec 01, 2020
3587.56
-0.16
10601066
4588
12000
53.0
28.0
n/a
Mon, Nov 30, 2020
3587.72
-0.15
10615367
4178
11001
50.0
28.0
56.0
Sun, Nov 29, 2020
3587.87
-0.12
10628785
4372
9737
52.0
27.0
56.0
Sat, Nov 28, 2020
3587.99
-0.15
10639527
4524
11357
49.0
26.0
57.0
Fri, Nov 27, 2020
3588.14
-0.19
10652965
2491
11283
51.0
32.0
57.0
Thu, Nov 26, 2020
3588.33
-0.07
10670003
6798
9733
52.0
35.0
57.0
Wed, Nov 25, 2020
3588.40
-0.16
10676284
3805
11141
53.0
31.0
57.0
Tue, Nov 24, 2020
3588.56
-0.16
10690650
3616
10959
55.0
37.0
59.0
Mon, Nov 23, 2020
3588.72
-0.15
10705029
4249
11108
58.0
37.0
59.0
Sun, Nov 22, 2020
3588.87
-0.11
10718520
4414
9317
58.0
42.0
59.0
Sat, Nov 21, 2020
3588.98
-0.12
10728420
5430
10828
64.0
43.0
59.0
Fri, Nov 20, 2020
3589.10
-0.12
10739228
5412
10812
63.0
41.0
59.0
Averages of List
3588.20
-0.15
10658491
4311
10962
53.6
32.9
57.7

Averages for December 4th

AVERAGE TYPE ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Since Filled
3643.04
-0.11
16798066
8548
13924
50.0
30.1
55.0
All-Time
3630.34
-0.09
15360074
8767
12814
50.0
30.7
55.0

Last 10 December 4th's data records

DATE MEASURED ELEVATION CHG vs TODAY CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Wed, Dec 04, 2019
3610.90
23.72
12821106
6109
12281
46.0
36.0
55.0
Tue, Dec 04, 2018
3585.94
-1.24
10456971
4217
12530
39.0
25.0
54.0
Mon, Dec 04, 2017
3624.95
37.77
14295011
5876
12516
46.0
33.0
57.0
Sun, Dec 04, 2016
3605.21
18.03
12254195
4601
13268
46.0
27.0
56.0
Fri, Dec 04, 2015
3604.90
17.72
12223799
6163
14816
46.9
30.9
56.0
Thu, Dec 04, 2014
3601.31
14.13
11875484
6466
14430
52.0
46.0
57.0
Wed, Dec 04, 2013
3587.50
0.32
10595706
7044
10074
54.0
24.1
53.0
Tue, Dec 04, 2012
3614.49
27.31
13187568
4762
12170
59.0
43.0
55.0
Sun, Dec 04, 2011
3644.92
57.74
16591664
8326
20326
41.0
28.0
56.0
Sat, Dec 04, 2010
3629.73
42.55
14822622
5988
13848
50.0
32.0
53.0
Averages of List
3610.99
-0.16
12912413
5955
13626
48.0
32.5
55.2


Accessibility of Primitive Launches and Other Sites
As of Thursday, December 3rd, 2020 where elevation was 3587.18'

SITE/LAUNCH NAME MINIMUM SAFE
ELEVATION
ABSOLUTE MINIMUM
USABLE ELEVATION
CURRENT LEVEL VS.
ABSOLUTE MINIMUM
CURRENT ACCESSIBILITY
Halls Crossing Launch
3550.00
3548.00
39.18 Above
Open and Usable
Wahweap
3558.00
3556.00
31.18 Above
Open and Usable
Bullfrog (Main Launch)
3578.00
3576.00
11.18 Above
Open and Usable
Castle Rock Cut-Off
3583.00
3580.00
7.18 Above
Open and Usable
Antelope Point
3588.00
3587.00
0.18 Above
Looking bad, not likely. Go very slow!
Dominguez Butte Cut-Off
3602.00
3600.00
12.82 Below
Unusable, go to main marinas
Gunsight to Padre Bay Cut-Off
3613.00
3609.00
21.82 Below
Unusable, go to main marinas
Hite Marina
3650.00
3645.00
57.82 Below
Unusable, go to main marinas
Farley Canyon
3653.00
3649.00
61.82 Below
Unusable, go to main marinas
Copper Canyon
3663.00
3660.00
72.82 Below
Unusable, go to main marinas
Bullfrog to Halls Creek Cut-Off
3670.00
3668.00
80.82 Below
Unusable, use Main Channel
Piute Farms
3682.00
3680.00
92.82 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 1.019 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 - 2020



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Lake Powell, Houseboating, Glen Canyon, Striped Bass