SLCESPAZ

NATIONAL WEATHER SERVICE
COLORADO BASIN RIVER FORECAST CENTER
SALT LAKE CITY, UTAH
April 18, 2022


The following are updated forecasts for the Lake Mead Local 
(or Intervening Flow).

Forecasts include monthly values for April - June.

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April 1-17 OBSERVED (EST.) CBRFC LML INFLOW:  
                       - values in KAF -

(Mead Release 556.0 + Mead Evap 18.9 + Mead Storage Change -265.8 + 
SNWP Use 8.76 - Lagged Powell Release 290.0) ~ 27.8

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FORECASTS:

* All Forecasts are the 50% exceedance probability value *

Lake Mead Intervening Flow:

	  April   59  KAF (68% of average)
	  May     65  KAF (76% of average)
      June    53  KAF (91% of average)


Lake Mead Adjusted Intervening Flow:

	  April   29.6  KAF
	  May     34.9  KAF
      June    31.9  KAF


Equation Used for Adjusted Flow: 

Inflow(BOR) = Inflow(NWS) + Evap(BOR) - Evap(NWS) + BankStorageChange(BOR)

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Tributaries:

           Virgin River
           nr Littlefield

	   Apr  11.0 KAF (53% of average)
	   May  13.0 KAF (56% of average)
       Jun   6.2 KAF (65% of average)
	   
          Little Colorado
           nr Cameron

	   Apr  8.2 KAF (65% of average)
	   May  0.6 KAF (35% of average)
       Jun  0.0 KAF (0% of average)
        
          Paria Creek
           nr Lees Ferry

	   Apr  0.5 KAF (46% of average)
	   May  0.4 KAF (58% of average)
       Jun  0.2 KAF (45% of average)

       * All Forecasts are the 50% exceedance probability value * 

$$

Grout/Miller CBRFC