PORTNEUF - AT TOPAZ
Forecasts For Water Year 2026
Official Water Supply
ESP with 10 days QPF
Ensemble: 2026-09-03 Issued: 2026-09-03
Forecast
Period
Forecasts Are in KAF Obs Runoff
(2026-09-03)
30 Year
Average
(1991-2020)
90 % 50 % %
Average
10 %
OCT 6.0 6.0
NOV 7.2 6.8
DEC 8.2 7.1
JAN 8.3 7.4
FEB 7.6 7.7
MAR 8.7 11
APR 8.2 13
MAY 12 19
JUN 8.5 14
JUL 5.6 11
AUG 4.4 8.5
SEP 4.6 4.9 81 5.7 0.3* 6.0
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* Partial Monthly Total
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PORTNEUF - AT TOPAZ
Forecasts For Water Year 2026
Experimental Water Supply
HEFS with 15 days EQPF
Ensemble: 2026-09-03 Issued: 2026-09-03
Forecast
Period
Forecasts Are in KAF Obs Runoff
(2026-09-03)
30 Year
Average
(1991-2020)
90 % 50 % %
Average
10 %
OCT 6.0 6.0
NOV 7.2 6.8
DEC 8.2 7.1
JAN 8.3 7.4
FEB 7.6 7.7
MAR 8.7 11
APR 8.2 13
MAY 12 19
JUN 8.5 14
JUL 5.6 11
AUG 4.4 8.5
SEP 4.5 4.8 80 5.7 0.3* 6.0
Move the mouse over the desired "Forecast Table" to update graph.
* Partial Monthly Total
CSV
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PORTNEUF - AT TOPAZ
Forecasts For Water Year 2026
Reference
ESP with 0 days QPF
Ensemble: 2026-09-03 Issued: 2026-09-03
Forecast
Period
Forecasts Are in KAF Obs Runoff
(2026-09-03)
30 Year
Average
(1991-2020)
90 % 50 % %
Average
10 %
OCT 6.0 6.0
NOV 7.2 6.8
DEC 8.2 7.1
JAN 8.3 7.4
FEB 7.6 7.7
MAR 8.7 11
APR 8.2 13
MAY 12 19
JUN 8.5 14
JUL 5.6 11
AUG 4.4 8.5
SEP 4.5 4.9 81 5.7 0.3* 6.0
Move the mouse over the desired "Forecast Table" to update graph.
* Partial Monthly Total
CSV
Download