SLCESPAZ

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


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

Forecasts include monthly values for Jun - Aug and a seasonal 
volume for Apr - July and for Jun - July.

-------------------------------------------------------------------
MAY OBSERVED DATA (est.): (From USGS gage data) 
                       - values in KAF -
MAY observed (Colorado Diamond Ck 751.3 + Muddy River 2.2 
  + Virgin River 5.8 - Powell Release 708.1) ~ 51 KAF  

-------------------------------------------------------------------
FORECASTS (using the Ensemble Prediction System):

* All Forecasts are the 50% exceedance probability value *

Lake Mead Intervening Flow:

Jun - Aug Forecasts

	   June       20  KAF ( 57% of average)
	   July       30  KAF ( 49% of average)
	   Aug        40  KAF ( 47% of average)

Apr - July Forecast:     145 KAF ( 53% of average)
Jun - July Forecast:      50 KAF ( 52% of average)

-----------------------
Tributaries:

           Virgin River
           nr Littlefield

	   Jun  2.0 KAF ( 40% of median or  19% of average)
	   Jul  2.6 KAF ( 46% of median or  38% of average)
	   Aug  3.5 KAF ( 45% of median or  39% of average)
	   
          Little Colorado
           nr Cameron

	   Jun  0.1 KAF (999% of median or  49% of average) 
	   Jul  0.7 KAF ( 32% of median or  13% of average) 
	   Aug  1.8 KAF ( 18% of median or   9% of average) 
 
          Paria Creek
           nr Lee's Ferry

	   Jun  0.1 KAF ( 36% of median or  27% of average)
	   Jul  0.6 KAF ( 94% of median or  59% of average)
	   Aug  1.6 KAF ( 87% of median or  71% of average)

       * All Forecasts are the 50% exceedance probability value * 

CBRFC

NNNN

$$