Lake Powell Water Database

The Lake Powell Water Database
It is 07:55:31 pm MDT at Lake Powell, Utah on Thursday, July 2nd, 2009. Today is day 275 of 365 for the Water Year 2009. We are 75% through the Water Year.
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For July 2nd, 2009
Snowpack is 26.4% of avg
TotalPrecip is 105.0% of avg

Water Summary
3640.76 on Jul 1, 2009
Last within 2" of this elevation on Jul 1, 2002

Snowpack Above
Lake Powell Database
Click for Details

Elevation & Content	Water Inflow Data	Water Release Data
Lake Powell is 59.24 feet below Full Pool (Elevation 3,700) By content, Lake Powell is 66.17% of Full Pool (24,322,000 af)	Total inflows for water year 2009: 7,970,106 acre feet This is 92.18% of the July 1st average of 8,646,476 acre feet	Total releases for water year 2009: 6,056,369 acre feet This is 73.59% of the minimum required of 8,230,000 acre feet
During WY 2009, storage at Lake Powell has risen by 1,584,395 AF and total inflows have exceeded total outflows by 1,913,737 AF
Reservoirs above Lake Powell are currently at 91.41% of capacity. Click for Details
Inflows for WY 2009 are 80.02% of WY 2008 Rivers feeding Lake Powell are running at 91.05% of the Jul 2nd 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

07-01-2009 3640.76 0.27 16092972 39679 12945 100.9 73.9 78.0

06-30-2009 3640.49 0.35 16060989 38096 11649 100.0 71.1 77.0

06-29-2009 3640.14 0.38 16019599 37493 11980 98.1 69.1 76.0

06-28-2009 3639.76 0.36 15974750 33010 10834 95.0 66.9 75.0

06-27-2009 3639.40 0.27 15932342 31994 11639 89.1 61.0 74.0

06-26-2009 3639.13 0.33 15900587 32504 12357 82.9 63.0 74.0

06-25-2009 3638.80 0.26 15861837 32028 12428 98.1 66.0 75.0

06-24-2009 3638.54 0.26 15831352 31918 12379 97.0 73.9 72.0

06-23-2009 3638.28 0.26 15800909 31570 12394 91.9 64.9 72.0

06-22-2009 3638.02 0.27 15770506 30420 12159 93.0 63.0 71.0

06-21-2009 3637.75 0.22 15738978 30129 10497 89.1 68.0 70.0

06-20-2009 3637.53 0.31 15713321 30351 11299 84.9 71.1 70.0

06-19-2009 3637.22 0.24 15677218 31016 12091 88.0 59.0 70.0

06-18-2009 3636.98 0.24 15649307 31140 12100 82.0 55.0 70.0

Averages of List 3638.77 0.29 15858904.79 32953.43 11910.79 92.14 66.14 73.1

Averages for July 2nd

AVERAGE TYPE ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP

Since Filled 3665.79 0.06 19686730.69 30084.24 19290.55 99.14 68.67 77.2

All-Time 3643.76 0.13 17061323.22 30458.98 16668.39 99.73 69.07 77.2

Last 10 July 2nd's data records

DATE MEASURED ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP

07-02-2008 3631.62 0.32 15035059 37227 13624 102.9 70.0 78.0

07-02-2007 3611.35 -0.10 12866679 11165 13471 105.1 71.1 79.0

07-02-2006 3610.18 -0.10 12748420 11411 12796 93.9 77.0 78.0

07-02-2005 3606.94 0.32 12424748 38031 13334 98.1 66.9 75.0

07-02-2004 3585.79 -0.17 10443697 10108 13796 93.9 64.9 n/a

07-02-2003 3615.94 -0.15 13337501 12105 15557 98.1 69.1 75.0

07-02-2002 3640.50 -0.18 16062172 3708 15070 100.9 78.1 77.0

07-02-2001 3672.90 -0.12 20242534 9972 13157 102.9 77.0 n/a

07-02-2000 3683.37 0.01 21753202 11842 7974 n/a n/a n/a

07-02-1999 3693.86 0.14 23349436 37796 17862 108.0 74.0 79.0

Averages of List 3635.24 -0.00 15826344.80 18336.50 13664.10 100.42 72.01 77.2

Accessibility of Primitive Launches and Other Sites
As of Wednesday, July 1st, 2009 where elevation was 3640.76'

SITE/LAUNCH NAME MINIMUM SAFE
ELEVATION ABSOLUTE MINIMUM
USABLE ELEVATION CURRENT LEVEL VS.
ABSOLUTE MINIMUM CURRENT ACCESSIBILITY

Antelope Point 3587.00 3586.00 54.76 Above Open and Usable

Castle Rock Cut-Off 3612.00 3608.00 32.76 Above Open and Usable

Farley Canyon 3653.00 3649.00 8.24 Below Unusable, go to main marinas

Copper Canyon 3663.00 3660.00 19.24 Below Unusable, go to main marinas

Bullfrog to Halls Creek Cut-Off 3668.00 3665.00 24.24 Below Unusable, go to main marinas

Piute Farms 3682.00 3680.00 39.24 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