CHELAN - LAKE CHELAN DAM
Forecasts For Water Year 2025
Official Water Supply
ESP with 10 days QPF
Ensemble: 2025-07-12 Issued: 2025-07-12
Forecast
Period		 Forecasts Are in KAF Obs Runoff
(2025-07-12)		 30 Year
Average
(1991-2020)
90 % 50 % %
Average		 10 %
OCT 27 52
NOV 44 84
DEC 46 56
JAN 28 56
FEB 25 55
MAR 100 76
APR 176 150
MAY 272 359
JUN 204 328
JUL 86 86 45 87 38* 192
AUG 29 30 41 32 73
SEP 14 16 42 21 37
Move the mouse over the desired "Forecast Table" to update graph.
* Partial Monthly Total
CSV
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CHELAN - LAKE CHELAN DAM
Forecasts For Water Year 2025
Experimental Water Supply
HEFS with 15 days EQPF
Ensemble: 2025-07-12 Issued: 2025-07-12
Forecast
Period		 Forecasts Are in KAF Obs Runoff
(2025-07-12)		 30 Year
Average
(1991-2020)
90 % 50 % %
Average		 10 %
OCT 27 52
NOV 44 84
DEC 46 56
JAN 28 56
FEB 25 55
MAR 100 76
APR 176 150
MAY 272 359
JUN 204 328
JUL 86 86 45 87 38* 192
AUG 29 30 41 32 73
SEP 14 16 43 21 37
Move the mouse over the desired "Forecast Table" to update graph.
* Partial Monthly Total
CSV
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CHELAN - LAKE CHELAN DAM
Forecasts For Water Year 2025
Reference
ESP with 0 days QPF
Ensemble: 2025-07-12 Issued: 2025-07-12
Forecast
Period		 Forecasts Are in KAF Obs Runoff
(2025-07-12)		 30 Year
Average
(1991-2020)
90 % 50 % %
Average		 10 %
OCT 27 52
NOV 44 84
DEC 46 56
JAN 28 56
FEB 25 55
MAR 100 76
APR 176 150
MAY 272 359
JUN 204 328
JUL 74 74 39 75 38* 192
AUG 29 30 41 32 73
SEP 14 16 43 21 37
Move the mouse over the desired "Forecast Table" to update graph.
* Partial Monthly Total
CSV
Download