Lake Powell, Houseboating, Glen Canyon, Striped Bass



Lake Powell

Lake Powell

For December 18th, 2018
Snowpack is 93% of avg
TotalPrecip is 103.00% of avg

Lake Powell is currently 451.94 feet deep at the dam
Water Summary
Today is day 79 of 365 for the Water Year 2019. We are 22% through the Water Year.
Last Reading: 3583.94 on Dec 17, 2018
Powell was last within 2" of this elevation on Jan 3, 2014
There are currently 3,350,024,776,063 gallons of water in Lake Powell!
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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 116.06 feet below Full Pool (Elevation 3,700)

By content, Lake Powell is 42.27% of Full Pool (24,322,000 af)
Total inflows for water year 2019: 956,380 acre feet

This is 65.4% of the December 17th average of 1,462,276 acre feet
Total releases for water year 2019: 1,691,890 acre feet

This is 20.56% of the minimum required of 8,230,000 acre feet
During WY 2019, water storage has fallen by 4,394,702 AF and total outflows have exceeded total inflows by 735,510 AF
The 28 tracked reservoirs above Lake Powell are currently at 66.82% of capacity. Click for Details
Inflows for WY 2019 are 78.88% of WY 2018         Rivers feeding Lake Powell are running at 107.12% of the Dec 18th avg. Click for Details


Powell is down -39.98 feet from one year ago


View Acre Feet     Last 14 Measurements
Powell is down -2.00 feet over these measurements

DATE MEASURED ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Mon, Dec 17, 2018
3583.94
-0.15
10280835
5612
12403
n/a
n/a
n/a
Sun, Dec 16, 2018
3584.09
-0.16
10293978
3415
10689
n/a
n/a
n/a
Sat, Dec 15, 2018
3584.25
-0.11
10308009
6653
11543
n/a
n/a
n/a
Fri, Dec 14, 2018
3584.36
-0.15
10317662
5789
12595
n/a
n/a
n/a
Thu, Dec 13, 2018
3584.51
-0.19
10330836
3877
12604
n/a
n/a
n/a
Wed, Dec 12, 2018
3584.70
-0.20
10347538
3248
12464
n/a
n/a
n/a
Tue, Dec 11, 2018
3584.90
-0.14
10365138
6121
12467
0.0
0.0
52.0
Mon, Dec 10, 2018
3585.04
-0.15
10377469
5733
12565
0.0
0.0
52.0
Sun, Dec 09, 2018
3585.19
-0.43
10390692
5871
10786
0.0
0.0
52.0
Sat, Dec 08, 2018
3585.30
0.11
10400396
4301
11142
0.0
0.0
53.0
Fri, Dec 07, 2018
3585.45
0.26
10413638
4796
12606
0.0
0.0
53.0
Thu, Dec 06, 2018
3585.62
-0.17
10428659
4681
12497
0.0
0.0
53.0
Wed, Dec 05, 2018
3585.79
-0.15
10443693
5742
12602
0.0
0.0
54.0
Tue, Dec 04, 2018
3585.94
-0.18
10456971
4217
12530
0.0
0.0
54.0
Averages of List
3585.40
-0.11
10409582.00
5182.75
12149.38
0.00
0.00
52.8

Averages for December 18th

AVERAGE TYPE ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Since Filled
3643.85
-0.11
16885363.03
8455.29
14226.42
46.24
27.79
52.0
All-Time
3630.22
-0.10
15346086.67
8649.82
13319.16
45.69
26.94
52.0

Last 10 December 18th's data records

DATE MEASURED ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Mon, Dec 18, 2017
3623.82
-0.10
14172307
6935
12356
48.0
26.0
54.0
Sun, Dec 18, 2016
3602.76
-0.10
12015351
8530
13390
37.0
21.0
53.0
Fri, Dec 18, 2015
3602.82
-0.10
12021162
10011
14873
44.1
26.1
52.0
Thu, Dec 18, 2014
3599.46
-0.13
11698637
8166
14497
46.9
37.0
55.0
Wed, Dec 18, 2013
3585.72
-0.04
10437501
8544
10101
39.9
28.4
49.0
Tue, Dec 18, 2012
3612.18
-0.17
12950987
4498
13485
48.0
35.6
52.0
Sun, Dec 18, 2011
3642.09
-0.22
16251201
6549
20323
37.9
33.8
53.0
Sat, Dec 18, 2010
3627.98
-0.10
14627852
6897
13682
45.0
37.9
53.0
Fri, Dec 18, 2009
3628.18
-0.16
14650017
7750
15435
44.1
28.0
53.0
Thu, Dec 18, 2008
3619.71
-0.19
13732538
6835
13104
42.1
28.9
54.0
Averages of List
3614.47
-0.13
13255755.30
7471.50
14124.60
43.30
30.27
52.8


Accessibility of Primitive Launches and Other Sites
As of Monday, December 17th, 2018 where elevation was 3583.94'

SITE/LAUNCH NAME MINIMUM SAFE
ELEVATION
ABSOLUTE MINIMUM
USABLE ELEVATION
CURRENT LEVEL VS.
ABSOLUTE MINIMUM
CURRENT ACCESSIBILITY
Castle Rock Cut-Off
3583.00
3580.00
3.94 Above
Open and Usable
Antelope Point
3592.00
3590.00
6.06 Below
Unusable, go to main marinas
Hite Marina
3650.00
3645.00
61.06 Below
Unusable, go to main marinas
Farley Canyon
3653.00
3649.00
65.06 Below
Unusable, go to main marinas
Copper Canyon
3663.00
3660.00
76.06 Below
Unusable, go to main marinas
Bullfrog to Halls Creek Cut-Off
3670.00
3668.00
84.06 Below
Unusable, use Main Channel
Piute Farms
3682.00
3680.00
96.06 Below
Unusable, go to main marinas
Gunsite Pass Cut-Off
3685.00
3680.00
96.06 Below
Unusable, use Main Channel
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



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Copyright Summit Technologies, Inc.
Water data courtesy of US Bureau of Reclamation
*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 - 2018



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Lake Powell, Houseboating, Glen Canyon, Striped Bass