Water Year 2009 Forecast Review Green River Basin

Water Year 2009 Forecast Review: Green River Basin CRFS November 19, 2009

Green River above Fontenelle

2009 Years: 1981 -2009 Note: June Precipitation (6. 9 inches) was 52% of the Precipitation received during April-July (13. 3 inches) and was 25% of the Precipitation received during October-July (27. 1 inches). Elevation 9, 400 feet

Green River Above Fontenelle (> 20 Years POR)

967 k. AF / 113% Forecast Date RFC NRCS COORD ESP SWS PREF DAILY LEGACY PREF KAF % AVG Jan 1 775 855 765 701 840/780 r 780 765 89% Feb 1 722 820 765 774 850/795 r 795 765 89% Mar 1 690 680 690 712 785/720 r 715 83% Apr 1 733 686 730 713 770/720 r 715 83% May 1 770 708 750 811 835/785 r 750 87% Jun 1 640 719 660 720 810/760 r 750 705 82%

Green - Fontenelle Res, Fontenelle Nr (GBRW 4) Streamflow Scatterplot ~ 1991 -2009 ~ Coordinated Forecast January April June

Green River above Flaming Gorge

Green River above Flaming Gorge (>20 year POR)

Flaming Gorge Local (> 20 Years POR)

1197 k. AF / 101% Forecast Date RFC NRCS COORD ESP SWS PREF DAILY LEGACY PREF KAF % AVG Jan 1 1010 1061 900 963 1080/1060 r 1020 910 76% Feb 1 815 1056 910 982 1120/915 r 915 910 76% Mar 1 750 968 820 922 1070/970 r 845 71% Apr 1 820 1020 820 990 1070/985 r 800 810 68% May 1 929 1190 890 1148 1200/1060 r 890 75% Jun 1 783 929 805 1013 1190/1050 r 890 850 71%

Green – Flaming Gorge Reservoir (GRNU 1) Streamflow Scatterplot ~ 1991 -2009 ~ Coordinated Forecast January April June

Yampa River Basin

Little Snake R. near Lily (>20 Years POR)

522 k. AF / 142% Forecast Date RFC NRCS COORD ESP SWS PREF DAILY LEGACY PREF KAF % AVG Jan 1 348 355 360 319 340/345 r 345 350 96% Feb 1 410 415 416 420/395 r 400 110% Mar 1 411 439 430 433 430/430 r 420 430 118% Apr 1 464 467 430 471 440/430 r 430 118% May 1 542 476 505 472 420/490 r 490 134% Jun 1 457 418 455 423 370/440 r 440 445 122%

Yampa River near Maybell (>20 years POR)

1137 k. AF / 115% Forecast Date RFC NRCS COORD ESP SWS PREF DAILY LEGACY PREF KAF % AVG Jan 1 890 913 900 888 845/940 r 940 910 76% Feb 1 1068 975 1030 1113 1060/1120 r 1100 1070 108% Mar 1 968 1080 1070 1088 1050/1120 r 1070 108% Apr 1 1010 1027 1010 1109 1070/1070 r 1070 108% May 1 1034 - 1020 989 965/1060 r 1050 1040 105% Jun 1 969 932 955 854 930/990 r 990 965 97%

Yampa River at Deerlodge Peak Flow Forecasts (mean daily cfs) 2009 Mean Daily Peak: 15, 600 cfs on 5/27