Colorado Basin River Forecast Center
May final Forecast
05-05-2026

:FLOOD CONTROL RESERVOIR UNREGULATED INFLOW FORECASTS
1 May through 31 July 2026 (units:: 1000's Acre-Feet)
Reservoir ID, Reservoir Name, Most Probable
LKSA3, Lake Mead      ,   614
GLDA3, Lake Powell    ,   428
NVRN5, Navajo         ,    95
BMDC2, Blue Mesa Res  ,   133
GRNU1, Flaming Gorge  ,   329

:Other Reservoir Unregulated Inflow Forecasts
OBSERVED MONTHLY INFLOW VOLUMES PROVIDED BY THE BUREAU OF RECLAMATION
Reservoir, Reservoir, Observed Inflow (kaf),,,,Apr,Inflow Forecast (kaf),,,Outlook
ID   ,Name           , Jan, Feb, Mar, Apr,%Avg,  May,  Jun,  Jul,Apr-Jul,%Avg
GLDA3,Lake Powell    , 265, 253, 350, 372, 41%,  180,  220,   28,  800,  13%
GBRW4,Fontenelle     ,  32,  31,  57,  46, 55%,   65,  165,   79,  355,  48%
GRNU1,Flaming Gorge  ,  31,  42,  64,  51, 41%,   70,  175,   84,  380,  39%
BMDC2,Blue Mesa      ,  22,  23,  42,  37, 47%,   62,   47,   24,  170,  27%
MPSC2,Morrow Point   ,  23,  25,  44,  38, 43%,   68,   49,   25,  180,  26%
CLSC2,Crystal        ,  25,  26,  48,  41, 42%,   75,   52,   27,  195,  25%
TPIC2,Taylor Park    , 3.4, 3.3, 7.3, 7.4, 84%, 12.0,  9.0,  5.6,   34,  36%
VCRC2,Vallecito      , 5.2, 4.5,15.2,  21, 89%,   36,   16,    7,   80,  45%
NVRN5,Navajo         ,  21,  20,  78,  73, 50%,   90,   14,   -9,  168,  27%
LEMC2,Lemon          ,0.76,0.68, 3.9, 4.5, 81%,  9.0,  4.0,  2.0, 19.5,  41%
MPHC2,McPhee         , 2.5, 3.1,19.2,  23, 38%,   29,   11,    7,   70,  27%
RBSC2,Ridgway        , 3.5, 3.7, 5.3, 4.3, 44%, 11.0, 13.0,  5.7,   34,  37%
YDLC2,Deerlodge      ,19.6,  22,  61,  99, 48%,  160,   58,    3,  320,  27%
DRGC2,Durango        ,11.2, 9.3,  25,  32, 65%,   63,   41,   17,  153,  40%
PRSC2,Paonia         ,0.88,1.21, 4.1, 5.6, 30%,  4.5,  0.4,  0.2, 10.7,  13%

:Other
OBSERVED MONTHLY INFLOW VOLUMES PROVIDED BY THE BUREAU OF RECLAMATION
Reservoir, Reservoir, Observed Inflow (kaf),,,,Apr,Inflow Forecast (kaf),,,Outlook
ID   ,Name           , Jan, Feb, Mar, Apr,%Avg,  May,  Jun,  Jul,Mar-Jun,%Avg
PRSC2-2,Paonia       ,0.88,1.21, 4.1, 5.6, 30%,  4.5,  0.4,  0.2, 14.6,  18%


# PRECIPITATION SUMMARY - % OF AVERAGE BY MONTH - WY 2026
RIVER BASIN            ,  Oct,  Nov,  Dec,  Jan,  Feb,  Mar,  Apr
GREEN
   ABV FLAMING GORGE   ,  150,   50,  195,   65,   90,   45,   85
   ABV GRN RVR UT (TOT),  130,   50,  130,   65,  100,   35,   95
COLORADO
   ABV  GRAND JUNCTION ,   95,   40,   75,   65,   90,   40,   80
   GUNNISON BASIN      ,  170,   55,   60,   65,   95,   20,  105
   DOLORES BASIN       ,  175,   85,   40,   75,   95,   15,  120
   ABV CISCO (TOTAL)   ,  130,   50,   65,   70,   90,   30,   95
SAN JUAN
   ABV BLUFF (TOTAL)   ,  255,   70,   45,   45,   90,   10,  125
ABV LAKE POWELL (TOTAL),  150,   55,   80,   65,   95,   30,   95
     
B.Alcorn/C.Moser/W.Hanft
CBRFC (801-524-5130)