The Lake Powell Water Database
It is 05:50:22 pm MDT at Lake Powell, Utah on Friday, May 18th, 2012.
Today is day 231 of 366 for the Water Year 2012. We are 63% through the Water Year.
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For May 18th, 2012
Snowpack is 13.2% of avg
TotalPrecip is 73.4% of avg
Water Summary
3635.94 on May 17, 2012

Last within 2" of this elevation on May 14, 2012

Snowpack Above
Lake Powell Database

Click for Details
Elevation & Content Water Inflow Data Water Release Data
Lake Powell is 64.06 feet below Full Pool (Elevation 3,700)

By content, Lake Powell is 63.85% of Full Pool (24,322,000 af)
Total inflows for water year 2012: 4,421,382 acre feet

This is 84.98% of the May 17th average of 5,203,011 acre feet
Total releases for water year 2012: 6,313,764 acre feet

This is 76.72% of the minimum required of 8,230,000 acre feet
During WY 2012, storage at Lake Powell has fallen by 2,064,538 AF and total outflows have exceeded total inflows by 1,892,382 AF
Reservoirs above Lake Powell are currently at 78.2% of capacity. Click for Details
Inflows for WY 2012 are 92.35% of WY 2011         Rivers feeding Lake Powell are running at 29.12% of the May 18th avg. Click for Details

Last 14 Measurements for Lake Powell

DATE MEASURED ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
05-17-2012
3635.94
-0.05
15528762
7624
10205
n/a
n/a
n/a
05-16-2012
3635.99
-0.01
15534543
10083
10145
n/a
n/a
66.0
05-15-2012
3636.00
0.01
15535699
11489
10292
n/a
n/a
65.0
05-14-2012
3635.99
0.03
15534543
12631
10174
n/a
n/a
64.0
05-13-2012
3635.96
0.01
15531074
9786
8589
n/a
n/a
64.0
05-12-2012
3635.95
0.06
15529918
13633
9289
n/a
n/a
64.0
05-11-2012
3635.89
0.00
15522983
10777
10210
n/a
n/a
64.0
05-10-2012
3635.89
0.00
15522983
10800
10233
n/a
n/a
64.0
05-09-2012
3635.89
0.03
15522983
12695
10240
n/a
n/a
63.0
05-08-2012
3635.86
-0.09
15519517
5146
10243
n/a
n/a
62.0
05-07-2012
3635.95
0.05
15529918
13950
10236
n/a
n/a
61.0
05-06-2012
3635.90
-0.04
15524139
6722
8672
n/a
n/a
62.0
05-05-2012
3635.94
0.11
15528762
16763
9274
n/a
n/a
61.0
05-04-2012
3635.83
0.01
15516051
11418
10222
n/a
n/a
61.0
Averages of List
3635.93
0.01
15527276.79
10965.50
9858.86
n/a
n/a
63.1

Averages for May 18th

AVERAGE TYPE ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Since Filled
3648.67
0.29
17450723.42
31362.19
15802.35
83.71
56.49
64.2
All-Time
3627.33
0.31
15588886.60
30336.47
14677.00
84.51
56.42
64.2

Last 10 May 18th's data records

DATE MEASURED ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
05-18-2011
3616.55
0.28
13400917
39333
22361
62.1
50.0
60.0
05-18-2010
3621.99
0.07
13975234
17832
9830
73.0
60.1
60.0
05-18-2009
3619.40
0.67
13699772
45015
10041
97.0
63.0
69.0
05-18-2008
3600.96
0.44
11841886
33042
12136
93.0
61.0
65.0
05-18-2007
3604.89
0.41
12222809
26864
10112
88.0
63.0
68.0
05-18-2006
3598.13
0.27
11572540
24408
10110
95.0
64.9
70.0
05-18-2005
3570.90
0.60
9180010
32803
10355
82.9
52.0
62.0
05-18-2004
3585.14
0.15
10386274
19355
10173
87.1
64.0
64.0
05-18-2003
3605.26
0.13
12259103
10733
7747
84.0
64.0
60.0
05-18-2002
3644.67
-0.06
16561371
4796
10065
91.0
62.1
62.0
Averages of List
3606.79
0.30
12509991.60
25418.10
11293.00
85.31
60.41
64.0


Accessibility of Primitive Launches and Other Sites
As of Thursday, May 17th, 2012 where elevation was 3635.94'

SITE/LAUNCH NAME MINIMUM SAFE
ELEVATION
ABSOLUTE MINIMUM
USABLE ELEVATION
CURRENT LEVEL VS.
ABSOLUTE MINIMUM
CURRENT ACCESSIBILITY
Antelope Point
3587.00
3586.00
49.94 Above
Open and Usable
Castle Rock Cut-Off
3612.00
3608.00
27.94 Above
Open and Usable
Hite Marina
3650.00
3645.00
9.06 Below
Unusable, go to main marinas
Farley Canyon
3653.00
3649.00
13.06 Below
Unusable, go to main marinas
Copper Canyon
3663.00
3660.00
24.06 Below
Unusable, go to main marinas
Bullfrog to Halls Creek Cut-Off
3670.00
3668.00
32.06 Below
Unusable, go to main marinas
Piute Farms
3682.00
3680.00
44.06 Below
Unusable, go to main marinas
Gunsite Pass Cut-Off
3685.00
3680.00
44.06 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.


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 * 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
Weather forecast for Lake Powell, UT
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 USBOR Water Data for Lake Powell
USBOR Water Projections for Lake Powell
Current Snowpack Conditions above Lake Powell

For questions or requests, email Powell Support