Difference between revisions of "GC-BG-INFO"

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(update 2-1-2014)
(add forecast info)
 
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'''WATER'''
 
'''WATER'''
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''BOR BCOO WaterOps'' from Feb 04
+
 
−
* Projected 2014 April-July unregulated inflow into Lake Powell is 7.25 MAF or 101% of average.
+
*The observed unregulated inflow into Lake Powell for November was 422 thousand acre-feet (kaf) or 89% of average.
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*Unregulated Inflows into Lake Powell
+
 
−
**Feb 300,000  (AF) or 76% of avg (Forecasted)
+
*Forecasted unregulated inflows into Lake Powell for December, January, and February are as follows:
−
**Mar 550,000  (AF) or 83% of avg (Forecasted)
+
−
**Apr 1,050,000 (AF) or 78% of avg (Forecasted)
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*December 420 kaf (an increase of 60 kaf) or 116% of average
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*Snowpack is currently about 96% of median for this time of year. (KGrantz_1-9-2014)
+
*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.
 +
 
 +
-
 +
*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
 
-
 
-
−
*Avg Water Temp = __ deg
 
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*Jan- Monthly Release = 800,000 acre feet
 
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*Feb- Monthly Release = 600,000 acre feet
 
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*Mar- Monthly Release = 510,000 acre feet
 
 
*Water Yr Release: '''7.48 MAF'''
 
*Water Yr Release: '''7.48 MAF'''
 
*Water Yr operating tier:  '''Mid-Elevation Release Tier'''
 
*Water Yr operating tier:  '''Mid-Elevation Release Tier'''
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*CRSS: Lake Mead level predicted to be 1085' Mar 2015
 
*CRSS: Lake Mead level predicted to be 1085' Mar 2015
 
*Forecasting
 
*Forecasting
−
**__% chance of 8.23 for water yr 2014 (Kgrantz TBD)
+
*August 2014 Probable Maximum 24-Month Study
−
**__% chance of 7.48 for water yr 2014 (Kgrantz TBD)
+
[http://www.usbr.gov/lc/region/g4000/24mo/2014/AUG14_MAX.pdf 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 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)
 +
*[[File:140822_USBR_Hydrology-_Shortage_Percentages-_GRAPH.jpg|250px]]
 
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----
  
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'''FISH'''
 
'''FISH'''
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*[http://www.leesferry.com/main/archives/1032 Recent Fish Rating: November 11, 2013]
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*[http://leesferry.com/river-report/?utm_source=+12%2F15%2F14&utm_campaign=Lees+Ferry+Mailing&utm_medium=email: December 15, 2014]
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**'''Upriver''':      3.5 to 6
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*[http://www.leesferry.com/main/river-reports-2?utm_source=3%2F20%2F14&utm_campaign=Lees+Ferry+Mailing&utm_medium=email: March 20, 2014]
−
**'''Walk-In''':      3.5 to 6
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**'''Upriver''':      6
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**'''Spin-Fishing''': 5 to 7.5
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**'''Walk-In''':      5
 +
**'''Spin-Fishing''': 6
 
*'''Key''': 1 = Go fish somewhere else 10 = Rent a helicopter and get here now!
 
*'''Key''': 1 = Go fish somewhere else 10 = Rent a helicopter and get here now!
  

Latest revision as of 09:51, 17 December 2014

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.

-

  • 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

-

  • 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
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