SLCESPAZ

NATIONAL WEATHER SERVICE
COLORADO BASIN RIVER FORECAST CENTER
SALT LAKE CITY, UTAH
Apr 01, 2015


The following are updated forecasts for the Lake Mead Local 
(or intervening flow).

Forecasts include monthly values for April - June and a seasonal 
volume for Apr - July.

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March OBSERVED DATA (est.): (From USGS gage data) 
                       - values in KAF -
March observed (Colorado Diamond Ck 720.4 + Muddy River 2.3 
  + Virgin River 11.0 - Powell Release 655.8) ~ 77.9 KAF  

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FORECASTS (using the Ensemble Prediction System):

* All Forecasts are the 50% exceedance probability value *

Lake Mead Intervening Flow:

April - June Forecasts

	   April      40  KAF ( 38% of average)
	   May        45  KAF ( 59% of average)
	   June       20  KAF ( 57% of average)

April - July Forecast:     150 KAF ( 54% of average)

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Tributaries:

           Virgin River
           nr Littlefield

	   Apr  3.0 KAF ( 20% of median or  14% of average)
	   May  2.5 KAF ( 21% of median or  10% of average)
	   Jun  2.0 KAF ( 40% of median or  19% of average)
	   
          Little Colorado
           nr Cameron

	   Apr  0.5 KAF (  7% of median or   3% of average) 
	   May  0.5 KAF ( 51% of median or  12% of average) 
	   Jun  0.1 KAF (999% of median or  49% of average) 

          Paria Creek
           nr Lee's Ferry

	   Apr  1.0 KAF (100% of median or  86% of average)
	   May  0.4 KAF ( 92% of median or  61% of average)
	   Jun  0.2 KAF ( 73% of median or  53% of average)

       * All Forecasts are the 50% exceedance probability value * 

CBRFC

NNNN

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