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Extended Streamflow Prediction
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FGUS65 KSTR 032019
ESPCO
NATIONAL WEATHER SERVICE
COLORADO BASIN RIVER FORECAST CENTER
SALT LAKE CITY, UT
WATER SUPPLY INFORMATION FOR
THE COLORADO RIVER BASIN WITHIN COLORADO
June 3, 2021
BASIN CONDITIONS (% OF AVERAGE) AS OF June 1:
*NOTE: SNOW NOT REPORTED IN JUNE
SUBBASIN MAY OCT-MAY JUN1 MAY
PRECIP PRECIP SNOW* STRMFLW
---------------------- ------ ------- ----- --------
UPPER COLORADO 85 75 55
GUNNISON 100 75 30
DOLORES/SAN MIGUEL 75 70 30
SAN JUAN 100 70 55
YAMPA/WHITE 60 70 40
RESERVOIR STORAGE (KAF) AS OF MAY 31:
C U R R E N T Y R 1981-2010
EOM % of % of MAY 31 Usable
Storage Average CapacityAvg Storage Capacity
---------------------------------------------------------------------------
COLORADO - LAKE GRANB| 403.7| 111| 82|| 363.6| 490.3|
WILLOW CK - WILLOW CK| 7.4| 83| 81|| 8.9| 9.1|
WILLIAMS FORK - WILLI| 73.0| 100| 75|| 73.0| 96.9|
MUDDY CK - WOLFORD MO| 65.0| 109| 98|| 59.9| 66.0|
BLUE - DILLON RESERVO| 222.9| 96| 88|| 232.7| 254.0|
BLUE - GREEN MTN RESE| 71.5| 80| 49|| 89.8| 146.9|
HOMESTAKE CK - HOMEST| 19.6| 79| 46|| 24.8| 43.0|
FRYING PAN - RUEDI RE| 68.9| 88| 68|| 78.0| 102.0|
PLATEAU CK - VEGA RES| 17.4| 57| 53|| 30.8| 32.9|
TAYLOR - TAYLOR PARK | 70.1| 94| 66|| 74.7| 106.2|
GUNNISON - BLUE MESA | 350.0| 61| 42|| 575.3| 827.9|
GUNNISON - MORROW POI| 113.1| 100| 97|| 113.2| 117.0|
GUNNISON - CRYSTAL RE| 17.1| 102| 97|| 16.7| 17.5|
MUDDY CK - PAONIA RES| 15.7| 100| 94|| 15.7| 16.7|
UNCOMPAHGRE - RIDGWAY| 61.4| 87| 74|| 70.7| 83.0|
DOLORES - MCPHEE RESE| 189.0| 54| 50|| 347.8| 381.1|
LOS PINOS - VALLECITO| 76.6| 76| 61|| 100.5| 125.4|
SAN JUAN - NAVAJO RES| 1104.9| 77| 65|| 1429.7| 1696.0|
FLORIDA - LEMON RESER| 18.6| 58| 47|| 32.1| 39.8|
COLORADO - LAKE POWEL| 8366.4| 46| 34||18186.3| 24322.0|
STREAMFLOW FORECASTS:
Developed: Jun 1 2021
Yampa/White Basins
Period 50% %AVG 10% 30% 70% 90% AVG
------ ---- ---- ---- ---- ---- ---- ---
Yampa River
Stagecoach Rsvr, abv Apr-Jul 8.5 37 11.3 9.3 7.7 6.5 23
Stagecoach Rsvr, abv Jun-Jul 3.0 35 5.8 3.8 2.20 1.00 8.6
Steamboat Springs Apr-Jul 110 42 142 123 100 90 260
Steamboat Springs Jun-Jul 40 34 72 53 30 20 119
Elk River
Milner, nr Apr-Jul 162 51 200 177 150 137 320
Milner, nr Jun-Jul 70 44 110 85 58 45 159
Elkhead Ck
Long Gulch, abv, Hayden Apr-Jul 17.2 24 20 17 16.9 16.7 73
Long Gulch, abv, Hayden Jun-Jul 1.00 10 4.0 1.1 0.75 0.50 10.4
Yampa River
Maybell, nr Apr-Jul 325 35 415 360 295 270 935
Maybell, nr Jun-Jul 130 33 220 165 97 72 390
Little Snake River
Slater, nr Apr-Jul 71 46 85 77 66 61 156
Slater, nr Jun-Jul 24 36 38 30 18.5 14.0 66
Dixon, nr Apr-Jul 95 28 130 111 90 80 345
Dixon, nr Jun-Jul 30 22 65 46 25.0 15.0 135
Lily, nr Apr-Jul 99 29 133 114 94 83 345
Lily, nr Jun-Jul 31 23 65 46 26.0 15.0 134
Yampa River
Deerlodge Park Apr-Jul 415 33 550 465 375 330 1240
Deerlodge Park Jun-Jul 165 33 300 215 127 80 500
White River
Meeker, nr Apr-Jul 103 37 128 115 95 88 280
Meeker, nr Jun-Jul 45 31 70 57 37 30 144
Watson, nr Apr-Jul 100 36 125 112 91 82 280
Watson, nr Jun-Jul 48 35 73 60 39 30 139
Upper Colorado, Above Gunnison Basin
Period 50% %AVG 10% 30% 70% 90% AVG
------ ---- ---- ---- ---- ---- ---- ---
Colorado River
Lake Granby, Granby, nr Apr-Jul 170 77 200 185 155 140 220
Lake Granby, Granby, nr Jun-Jul 92 63 122 107 77 62 145
Willow Ck
Willow Ck Reservoir, Gr Apr-Jul 33 70 40 37 29 26 47
Willow Ck Reservoir, Gr Jun-Jul 9.1 43 16.1 13.1 5.1 2.1 21
Fraser River
Winter Park Apr-Jul 16.0 82 19.0 17.5 14.5 13.0 19.4
Winter Park Jun-Jul 11.5 81 14.5 13.0 10.0 8.5 14.2
Williams Fork River
Williams Fork Reservoir Apr-Jul 62 65 74 68 56 50 96
Williams Fork Reservoir Jun-Jul 39 60 51 45 33 27 65
Blue River
Dillon Reservoir Apr-Jul 88 54 108 98 78 68 163
Dillon Reservoir Jun-Jul 56 51 76 66 46 36 110
Green Mtn Reservoir Apr-Jul 150 55 180 165 135 120 275
Green Mtn Reservoir Jun-Jul 93 51 123 108 78 63 184
Muddy Ck
Wolford Mountain Reserv Apr-Jul 25 46 31 28 22 20 54
Wolford Mountain Reserv Jun-Jul 6.2 32 12.2 9.2 3.20 1.16 19.3
Colorado River
Kremmling, nr Apr-Jul 520 60 620 570 470 420 860
Kremmling, nr Jun-Jul 280 53 380 330 230 180 525
Eagle River
Gypsum, blo Apr-Jul 155 46 190 175 135 120 335
Gypsum, blo Jun-Jul 88 41 123 108 68 53 215
Colorado River
Dotsero, nr Apr-Jul 770 55 920 845 695 620 1400
Dotsero, nr Jun-Jul 410 49 560 485 335 260 840
Frying Pan River
Ruedi Reservoir, Basalt Apr-Jul 85 61 100 93 77 70 139
Ruedi Reservoir, Basalt Jun-Jul 51 57 66 59 43 36 89
Roaring Fork River
Glenwood Springs Apr-Jul 350 51 420 385 315 280 690
Glenwood Springs Jun-Jul 230 51 300 265 196 161 455
Colorado River
Glenwood Springs, blo Apr-Jul 1160 55 1400 1280 1040 920 2110
Glenwood Springs, blo Jun-Jul 665 51 905 785 545 425 1300
Cameo, nr Apr-Jul 1200 51 1450 1330 1070 950 2360
Cameo, nr Jun-Jul 695 49 945 825 565 445 1420
Plateau Ck
Cameo, nr Apr-Jul 30 24 40 35 26 22 124
Cameo, nr Jun-Jul 8.5 17 18.5 13.5 4.50 0.48 49
Gunnison Basin
Period 50% %AVG 10% 30% 70% 90% AVG
------ ---- ---- ---- ---- ---- ---- ---
Taylor River
Taylor Park Reservoir Apr-Jul 58 59 68 63 53 48 99
Taylor Park Reservoir Jun-Jul 35 56 45 40 30 25 62
Almont Apr-Jul 80 52 95 88 72 65 155
Almont Jun-Jul 49 52 64 57 41 34 94
East River
Almont Apr-Jul 90 49 110 100 80 70 182
Almont Jun-Jul 55 52 75 65 45 35 106
Gunnison River
Gunnison, nr Apr-Jul 165 45 205 185 145 125 370
Gunnison, nr Jun-Jul 103 48 143 123 83 63 215
Tomichi Ck
Gunnison Apr-Jul 24 32 32 28 20.0 16.0 74
Gunnison Jun-Jul 11.0 30 19.0 15.0 7.0 3.0 37
Lake Fork River
Gateview Apr-Jul 65 53 80 73 57 50 123
Gateview Jun-Jul 41 51 56 49 33 26 81
Gunnison River
Blue Mesa Reservoir Apr-Jul 310 46 370 340 280 250 675
Blue Mesa Reservoir Jun-Jul 172 45 230 200 142 112 380
Morrow Point Reservoir Apr-Jul 330 45 400 365 295 260 740
Morrow Point Reservoir Jun-Jul 188 46 260 225 153 118 405
Crystal Reservoir Apr-Jul 360 43 430 395 325 290 835
Crystal Reservoir Jun-Jul 205 46 275 240 168 133 450
Muddy Ck
Paonia Reservoir, Bardi Mar-Jun 18.0 19 22 20 16.5 15.0 96
Paonia Reservoir, Bardi Apr-Jul 18.0 19 22 20 16.5 15.0 97
Paonia Reservoir, Bardi Jun-Jul 4.9 17 9.0 7.0 3.40 1.90 29
NF Gunnison River
Somerset, nr Apr-Jul 110 37 130 120 100 90 295
Somerset, nr Jun-Jul 48 42 68 58 38 28 114
Surface Ck
Cedaredge Apr-Jul 5.0 30 6.5 5.8 4.2 3.5 16.8
Cedaredge Jun-Jul 1.64 22 3.1 2.4 0.84 0.14 7.6
Uncompahgre River
Ridgway Reservoir Apr-Jul 48 48 58 53 43 38 101
Ridgway Reservoir Jun-Jul 29 45 39 34 24.0 19.0 65
Colona Apr-Jul 52 38 70 61 46 40 137
Colona Jun-Jul 31 38 49 40 25.0 18.9 81
Delta Apr-Jul 32 28 40 36 28 24 113
Delta Jun-Jul 10.9 19 18.9 14.9 6.9 2.9 57
Gunnison River
Grand Junction, nr Apr-Jul 530 36 650 590 470 410 1480
Grand Junction, nr Jun-Jul 270 39 390 330 210 150 695
Dolores Basin
Period 50% %AVG 10% 30% 70% 90% AVG
------ ---- ---- ---- ---- ---- ---- ---
Dolores River
Dolores Apr-Jul 73 30 89 80 68 64 245
Dolores Jun-Jul 24 26 40 31 19.0 15.0 92
Mcphee Reservoir Apr-Jul 76 26 92 83 71 67 295
Mcphee Reservoir Jun-Jul 24 25 40 31 19.0 15.0 97
San Miguel River
Placerville, nr Apr-Jul 50 39 59 53 47 42 128
Placerville, nr Jun-Jul 29 39 38 32 26 21 75
Dolores River
Cisco, nr Apr-Jul 91 16 105 95 90 87 565
Cisco, nr Jun-Jul 17.0 9 31 21 16.0 13.0 184
Upper Colorado, Confluence
Period 50% %AVG 10% 30% 70% 90% AVG
------ ---- ---- ---- ---- ---- ---- ---
Colorado River
Cisco, nr Apr-Jul 1800 41 2200 2000 1600 1400 4440
Cisco, nr Jun-Jul 960 41 1360 1160 760 560 2340
San Juan Basin
Period 50% %AVG 10% 30% 70% 90% AVG
------ ---- ---- ---- ---- ---- ---- ---
San Juan River
Pagosa Springs Apr-Jul 128 60 140 133 122 115 215
Pagosa Springs Jun-Jul 40 42 52 45 34 27 96
Carracas, nr Apr-Jul 205 54 230 215 193 183 380
Carracas, nr Jun-Jul 69 44 95 80 57 47 158
Rio Blanco River
Pagosa Springs, nr, Bla Apr-Jul 34 63 38 36 32 30 54
Pagosa Springs, nr, Bla Jun-Jul 11.7 51 15.5 13.8 9.5 8.0 23
Navajo River
Chromo, nr, Oso Div Dam Apr-Jul 39 60 44 41 36 34 65
Chromo, nr, Oso Div Dam Jun-Jul 14.6 49 20 17 11.2 10.0 30
Piedra River
Arboles, nr Apr-Jul 94 45 107 100 88 84 210
Arboles, nr Jun-Jul 27 36 40 33 21.0 17.0 74
Los Pinos River
Vallecito Reservoir, Ba Apr-Jul 110 57 127 117 104 95 194
Vallecito Reservoir, Ba Jun-Jul 46 46 63 53 40 31 99
San Juan River
Navajo Reservoir, Archu Apr-Jul 335 46 380 355 315 300 735
Navajo Reservoir, Archu Jun-Jul 83 29 130 104 64 50 290
Florida River
Lemon Reservoir, Durang Apr-Jul 25 45 29 27 23 22 55
Lemon Reservoir, Durang Jun-Jul 8.8 33 13.0 11.0 7.2 5.5 27
Animas River
Durango Apr-Jul 176 42 210 190 160 147 415
Durango Jun-Jul 86 39 121 100 70 57 220
San Juan River
Farmington Apr-Jul 450 41 535 495 420 390 1100
Farmington Jun-Jul 153 33 235 195 120 90 470
La Plata River
Hesperus Apr-Jul 8.0 35 9.3 8.5 7.5 7.0 23
Hesperus Jun-Jul 2.7 32 4.0 3.2 2.20 1.70 8.5
San Juan River
Bluff, nr Apr-Jul 420 38 505 460 395 360 1100
Bluff, nr Jun-Jul 134 30 220 175 107 75 450
Mancos River
Mancos, nr Apr-Jul 8.6 28 9.9 8.8 8.0 7.9 31
Mancos, nr Jun-Jul 1.63 16 3.0 1.9 1.04 1.00 10.4
Lake Powell
Period 50% %AVG 10% 30% 70% 90% AVG
------ ---- ---- ---- ---- ---- ---- ---
Colorado River
Lake Powell, Glen Cyn D Apr-Jul 1800 25 2530 2090 1570 1280 7160
Lake Powell, Glen Cyn D Jun-Jul 970 26 1700 1260 735 450 3760
50% Most probable volume in 1000 acre-feet.
%AVG Most probable volume in percent of the 1981-2010 average.
10% Volume that has a 10 percent chance of being exceeded.
30% Volume that has a 30 percent chance of being exceeded.
90% Volume that has a 90 percent chance of being exceeded.
70% Volume that has a 70 percent chance of being exceeded.
AVG average volume for the 1981-2010 period.
All forecast volumes reflect natural flow. Actual observed flow may
be affected by upstream water management.
CBRFC/Moser
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- Page last modified: Feb 1st, 2021 20:13 UTC