GC-BG-INFO

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WATER

  • The observed unregulated inflow into Lake Powell for November was 422 thousand acre-feet (kaf) or 89% of average.
  • Forecasted unregulated inflows into Lake Powell for December, January, and February are as follows:
  • December 420 kaf (an increase of 60 kaf) or 116% of average
  • January 330 kaf (no change) or 91% of average
  • February 370 kaf (no change) or 94% of average
  • The amount of change is compared to the December final unregulated inflow forecast dated December 1, 2014.
  • The precipitation values for the month of November are as follows:
  • Green River Basin ranged between 100 and 120 percent of average; Colorado River Basin ranged between 85 and 120 percent of average; San Juan River Basin recorded 90 percent of average; and *Above Lake Powell recorded 95 percent of average.

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  • Mar- Monthly Release = 505,000 acre feet
  • Apr- Monthly Release = 500,000 acre feet
  • May- Monthly Release = 510,000 acre feet
  • Jun- Monthly Release = 600,000 acre feet

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  • Water Yr Release: 7.48 MAF
  • Water Yr operating tier: Mid-Elevation Release Tier
  • HFE Scheduled: No
  • Water Quality: Normal
  • CRSS: Lake Mead level predicted to be 1085' Mar 2015
  • Forecasting
  • August 2014 Probable Maximum 24-Month Study

http://www.usbr.gov/lc/region/g4000/24mo/2014/AUG14_MAX.pdf -

  • August 2014 Probable Minimum 24-Month Study

http://www.usbr.gov/lc/region/g4000/24mo/2014/AUG14_MIN.pdf


    • __% chance of 8.23 for water yr 2015 (Kgrantz TBD)
    • __% chance of 7.48 for water yr 2015 (Kgrantz TBD)
  • 140822 USBR Hydrology- Shortage Percentages- GRAPH.jpg

RECREATION

  • Boat Season: Motorized boats currently NOT allowed on river

FISH


GUIDING DOCUMENTS

  • 2014 is year 13 of 10 for HFE protocol EA (2020)
  • 2014 is year 13 of 10 for NN Fish Control EA (2020)
  • 2014 is year 11 of 5 for Mexico to store water in U.S. reservoirs -- Minute 319