SLCESPNM Jun, 2023
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FGUS65 KSTR 071558
ESPNM
TTAA00 KSLR DDHHMM
COLORADO BASIN RIVER FORECAST CENTER
NATIONAL WEATHER SERVICE
SALT LAKE CITY UT
June 7, 2023
WATER SUPPLY INFORMATION FOR
SAN JUAN RIVER BASIN
PRECIPITATION (% OF AVERAGE) AND SNOWPACK (% OF MEDIAN):
SUBBASIN MAY PRECIP OCT-MAY PREC JUN 1 SNOWPACK
---------------------- ---------- ------------ ---------------
ABOVE NAVAJO RES 95 120 120
ANIMAS 60 125 155
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RESERVOIR STORAGE (KAF) AS OF MAY 31, 2023:
C U R R E N T Y R L A S T Y R
Usable EOM Usable % of EOM Usable % of
Capacity Contents Capacity Contents Capacity
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LOS PINOS - VALLECITO| 125.4| 90.7| 72| 92.1| 73|
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SAN JUAN - NAVAJO RES| 1696.0| 1340.3| 79| 953.6| 56|
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FLORIDA - LEMON RESER| 39.8| 32.2| 81| 26.3| 66|
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T O T A L S | 1861.2| 1463.2| 79| 1071.9| 58|
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STREAMFLOW FORECASTS
San Juan River watershed
Period 50% %AVG 10% 30% 70% 90% AVG
------ ---- ---- ---- ---- ---- ---- ---
San Juan River
Pagosa Springs Apr-Jul 290 149 315 300 280 270 194
Pagosa Springs Jun-Jul 80 98 106 90 71 61 82
Carracas, nr Apr-Jul 505 153 540 520 490 475 330
Carracas, nr Jun-Jul 137 101 173 153 124 106 135
Rio Blanco River
Pagosa Springs, nr, Bla Apr-Jul 71 145 77 74 68 66 49
Pagosa Springs, nr, Bla Jun-Jul 20 100 26 23 16.8 15.0 20
Little Navajo River
Oso Div Dam,bl,chromo,n Apr-Jul 10.4 170 11.0 10.6 10.1 9.8 6.1
Oso Div Dam,bl,chromo,n Jun-Jul 1.90 115 2.5 2.1 1.61 1.31 1.65
Navajo River
Chromo, nr, Oso Div Dam Apr-Jul 89 153 97 92 86 83 58
Chromo, nr, Oso Div Dam Jun-Jul 30 115 38 33 27 24 26
Piedra River
Arboles, nr Apr-Jul 305 169 330 315 300 290 181
Arboles, nr Jun-Jul 77 124 102 88 71 62 62
Los Pinos River
Vallecito Reservoir, Ba Apr-Jul 265 150 290 275 255 245 177
Vallecito Reservoir, Ba Jun-Jul 112 127 135 120 100 92 88
San Juan River
Navajo Reservoir, Archu Apr-Jul 1010 160 1110 1050 980 945 630
Navajo Reservoir, Archu Jun-Jul 275 115 375 320 245 210 240
Florida River
Lemon Reservoir, Durang Apr-Jul 73 152 84 77 69 66 48
Lemon Reservoir, Durang Jun-Jul 33 143 44 37 29 26 23
Animas River
Durango Apr-Jul 570 148 630 590 550 530 385
Durango Jun-Jul 290 145 350 310 270 250 200
San Juan River
Bluff, nr Apr-Jul 1800 162 1930 1850 1760 1700 1110
Bluff, nr Jun-Jul 605 126 735 655 560 505 480
Mancos River
Mancos, nr Apr-Jul 46 267 49 47 44 43 17.2
Mancos, nr Jun-Jul 7.3 203 10.8 8.8 5.8 4.7 3.6
50% Volume that has a 50 percent chance of being exceeded (in 1000 acre-feet).
%AVG 50% volume in percent of the 1991-2020 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 1991-2020 period.
All forecast volumes reflect natural flow. Actual observed flow may
be affected by upstream water management.
CBRFC/Nielson