WESTERN WATER
ASSESSMENT @jl University of Colorado Boulder 

Roaring Fork streamflow in 2070: earlier peak, lower

summer flows, probably lower annual volume
2070 Average Natural Flow

 

 

 

 

 

 

 

 

 

 

  
 

450,000
-Average Annual Natual FlowRange: istoncalAverage
821.000 to 1 .120000 AF +2070 - 
400.000 -Histon'calAverage Annual Flow. 4 I 2070- 
1,020,000 AF +2070 - 
2070- I
350000 . . A +207" 
Peak Shl?s earller Annual volume changes
300,000 . by -20% to +10%
250.000 
a Historical
200,000 .
Projections
150.000 Late 5 mmer ?o 
. 
?mate decline 30-50%
models I
50000 - 


 

 

 

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Source: Colorado River Water Availability Study 2012 (AECOM CWCB)