COKW1 ESP Natural Volume Forecast - COWLITZ

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COWLITZ - NEAR KOSMOS (COKW1) Forecasts for Water Year 2027
Natural Forecast ESP with 10 Days QPF Ensemble: 2026-10-31 Issued: 2026-10-31 Hide Forecast
Forecast Period	Forecasts Are in KAF				30 Year Average (1991-2020)
Forecast Period	90 %	50 %	% Average	10 %	30 Year Average (1991-2020)
APR-SEP	1043	1444	88	1854	1650
APR-JUL	921	1279	88	1666	1461
APR-AUG	989	1364	87	1776	1566
JAN-SEP	1867	2439	88	2991	2760
JAN-JUL	1740	2277	89	2783	2571
OCT-SEP	2151	2920	81	3669	3608
Experimental HEFS with 15 days EQPF Ensemble: 2026-10-31 Issued: 2026-10-31 Hide Forecast
APR-SEP	1043	1441	87	1846	1650
APR-JUL	915	1278	88	1659	1461
APR-AUG	986	1363	87	1769	1566
JAN-SEP	1860	2430	88	2993	2760
JAN-JUL	1746	2254	88	2789	2571
OCT-SEP	2166	2991	83	3671	3608
Reference ESP with 0 Days QPF Ensemble: 2026-10-31 Issued: 2026-10-31 Hide Forecast
APR-SEP	1056	1478	90	1856	1650
APR-JUL	929	1306	89	1667	1461
APR-AUG	1003	1394	89	1778	1566
JAN-SEP	1888	2469	89	3022	2760
JAN-JUL	1769	2273	88	2807	2571
OCT-SEP	2276	3106	86	3848	3608
Move the mouse over the desired "Forecast Period" to display a graph.

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ESP10 HEFS ESP0

Data Files

/chpsesp/ensemble/natural/COKW1N_SQIN.ESPF10.csv

COKW1N_SQIN.ESPF0.csv|2026-10-31
COKW1N_SQIN.ESPF10.csv|2026-10-31
COKW1N_SQIN.ESPFM.csv|2026-10-31