GIBO3 ESP Natural Volume Forecast - UMATILLA

UMATILLA - NEAR GIBBON (GIBO3) Forecasts for Water Year 2027
Natural Forecast ESP with 10 Days QPF Ensemble: 2026-10-22 Issued: 2026-10-22 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	45	71	86	113	83
APR-JUL	40	66	85	107	77
APR-AUG	42	68	86	110	80
JAN-SEP	93	125	83	180	150
JAN-JUL	88	120	83	174	145
OCT-SEP	104	143	82	197	174
Experimental HEFS with 15 days EQPF Ensemble: 2026-10-22 Issued: 2026-10-22 Hide Forecast
APR-SEP	45	72	87	114	83
APR-JUL	40	66	86	108	77
APR-AUG	42	69	87	111	80
JAN-SEP	96	128	85	182	150
JAN-JUL	91	123	85	176	145
OCT-SEP	112	143	82	200	174
Reference ESP with 0 Days QPF Ensemble: 2026-10-22 Issued: 2026-10-22 Hide Forecast
APR-SEP	46	73	89	115	83
APR-JUL	41	68	88	109	77
APR-AUG	43	71	88	112	80
JAN-SEP	98	131	87	185	150
JAN-JUL	93	125	86	179	145
OCT-SEP	115	150	86	206	174
Move the mouse over the desired "Forecast Period" to display a graph.