®
 

    
 Phoenix
    Sail and Power Squadron

    A Unit
    of United States Power Squadrons® - District 28

    Sail and Power Boating

    

    Boating is fun..We'll show you how

     
 




    

    November 11, 2009 level = 3632.69 ft.

    

    Inflow comparison

Glen Canyon Dam / Lake Powell –The unregulated inflow volume into Lake Powell for October was 374,000 acre-feet ((80% of average). This was 26,000 acre-feet below what was forecasted at the beginning of the month. Consequently, the elevation of Lake Powell at the end of October was somewhat below what was projected in the October 24-month study. The end of October elevation of Lake Powell was 3633.52 feet above sea level. The October 24-month study projected the elevation would end October at 3634.06. So the initial conditions for the November 24-month study are reduced by about 0.5 feet from what was expected in the October 24-month study.

TThe updated forecast for the unregulated inflow volume to Lake Powell during November is now 430,000 acre-feet (92% of average).

Beginning on November 1, 2009, releases from Glen Canyon Dam will resume normal daily fluctuation consistent with the Glen Canyon Dam Operating Criteria (Federal Register, Volume 62, No. 41, March 3, 1997). The scheduled release volume for November is 690,000 acre-feet. Hourly releases during November will peak during daylight hours into the evening to approximately 13,500 cfs and decrease during early morning hours to approximately 7,500 cfs. Currently, it is projected that the release volume for December will be scheduled to be 855,000 acre-feet. At this volume, it is estimated that the hourly releases during December would peak during daylight hours to approximately 17,000 cfs and decrease during early morning hours to approximately 9,000 cfs. These estimated release rates will be updated towards the end of November.

As of October 1, 2009, the unregulated inflow to Lake Powell during water year 2010 is projected to have an 80% probability of being within the range between 4.7 maf and 16.5 maf. There is an estimated 10% probability that the water year 2010 unregulated inflow volume will be below 4.7 maf and there is also an estimated 10% probability that the water year 2010 unregulated inflow volume will be greater than 16.5 maf.

Based on the range of probable inflow volumes and through implementation of the Interim Guidelines, there is approximately a 50% probability that Equalization will occur in 2010. The determination of whether or not Equalization will occur in 2010 will be based on the projected September 30 Lake Powell water surface elevations of the 2010 April 24-Month Study. If Equalization does occur in 2010, the water year release volume is projected to be approximately 10.7 maf. If however, Equalization does not occur in 2010 (50% probability), the water year release volume could be as low as 8.23 maf. Each month these forecasted probabilities will be updated as hydrologic conditions change in the Upper Colorado River Basin.

The November 24-Month Study is anticipated to be published by November 10, 2009. Updated elevation projections for Lake Powell through water year 2010 based on the most recently published 24-Month Study are maintained at: Lake Powell Projected Elevations.

* * *

Quagga Mussel Alert!!
(Every Boater Please click and Read)

All visitors bringing boats into Glen Canyon National Recreation Area will be required to display a certificate on their dashboard stating their boat is free of zebra or quagga mussels.

Download Certificate of Cleanliness

Utah Certificate of Cleanliness

* * *

Lake Powell Fall Rendezvous October 7-11, 2009

By Terry Gray

Lake Powell never disappoints, as early as the sixties boaters discovered its awesome beauty and immense waterways. We had many more people that wanted to go than were able this year.  To those people you were missed and we will try coordinating  earlier next year to accommodate any and all. On with the story and high adventures.

Wednesday night we accumulated the extreme number of two boats and six people. We stayed in a very small campsite the first night but Thursday as we saw a house boat leave we claimed all rights to our own little Island Paradise in the back of Oak Canyon.

Oak Canyon campsite	The pot is ready - so catch some fish!
The stern of the boat make a good fishing platform	And to prove it Terry Gray lands a stripped bass

Thursday saw rest and relaxation take everyone's top priority. Friday was hiking day as four of us explored for at least two hours while Jean and I fished  and held the campsite down. We shared dinner Friday as usual and we saw the sun go down as we dined.

Every excursion has to include a stop at the Dangling Rope Marina for a root beer float especially when you are about 40 miles from anywhere.	Boats in trail headed for the next destination That high water mark is about 70 above the lake level.
You guessed it - it is back up this canyon	The destination is in the background. This is as close as you can get by water. You have to hike the rest of the way
Keep coming - it is not far now.	Rainbow Bridge

Friday we all jumped in Art Ashton's boat and preceded to Dangling Rope and all belted down some of the last root beer floats of the season. We also took in Rainbow Bridge and saw the dinosaur footprint in the rock in view of the bridge. One can only imagine what the wildlife scene must have been like with all those  creatures  who have since departed.

Saturday night saw Hobo Stew and this year we had a twist,  mostly vegetarian approved ingredients in the stew pot. It was really very  good and Art explained why it is a recipe for good health. Maybe  that's why that guy can hike so long. We saw an Osprey, numerous Ducks and Fish leaping out of the water at all hours. We caught many Smallmouth Bass, Catfish, and a few Stripers although we did not work too hard at this..

Fair skies and light winds in the canyons of Lake Powell

Jean Gray (left) and Barb Davis

All in all the lake entertained us and allowed us to recharge our spirits. Days were in the low seventies and nights in the forties, perfect temperatures for great campfires and good sleeping weather. Participants camp side were Chuck and Barb Davis, Art Ashton, Chuck Peterson, Jean Gray the action character and myself. Boats participating were Vamos La Lago and Time Out.

Hope to see you all next year at the big red rocks by the water.

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This page last updated November 12, 2009