Executive Update

Northern Sierra Precipitation Accumulation (2)
Rainfall & Snow Water Content (in inches)
Water Year Amount to Date (since Oct. 1,2003):	25.51
Average to Date:	21.20
Percent of Average to Date:	120 %
Average for the Water Year (Oct. 1 through Sep. 30)	50.00
Percent of Average for the Water Year(Oct. 1 through Sep. 30)	51 %

(2)	Northern Sierra (Sacramento, Feather, Yuba, and American River Basins)

Selected Cities Precipitation Accumulation As of 01/12/2004
	Jul 1 to Date 2003 - 2004 (in inches)	% Avg	Jul 1 to Date 2002 - 2003 (in inches)	% Avg	% Avg Jul 1 to Jun 30 2003 - 2004
Eureka	21.12	116	27.41	150	55
Redding	20.80	148	20.01	143	62
Sacramento	8.13	98	8.40	101	40
San Jose	7.29	120	9.15	151	48
Fresno	4.11	99	4.39	106	36
Bakersfield	2.29	100	2.71	118	35
Los Angeles	3.12	64	5.73	117	20
San Diego	1.32	34	2.65	67	12

Key Reservoir Storage As of 01/12/2004 midnight
Reservoir	River	Storage (in 1000 AF)	Avg Storage (in 1000 AF)	% Average	Capacity (in 1000 AF)	% Capacity	Flood Control (3) Encroachment (in 1000 AF)
Trinity Lake	Trinity	1,842	1,709	108	2,448	75	---
Shasta Lake	Sacramento	3,437	2,979	115	4,552	76	-24
Lake Oroville	Feather	2,332	2,345	99	3,538	66	-532
New Bullards Bar Res	Yuba	625	545	115	966	65	-171
Folsom Lake	American	553	491	113	977	57	-24
New Melones Res	Stanislaus	1,347	1,328	101	2,420	56	-623
Don Pedro Res	Tuolumne	1,511	1,331	114	2,030	74	-179
Lake McClure	Merced	399	464	86	1,025	39	-275
Millerton Lake	San Joaquin	285	304	94	520	55	-150
Pine Flat Res	Kings	236	454	52	1,000	24	-426
Isabella	Kern	149	153	98	568	26	-21
San Luis Res	(Offstream)	1,468	1,497	98	2,039	72	---

(3)	Temporary encroachment into seasonally reserved flood storage space; requirements can vary considerably on a daily basis due to numerous variables: rainfall amounts, anticipated snowmelt, time of year, soil moisture, etc.

Comments

California has been mostly warm and dry since Fri Jan 9, with only light precipitation in Northwest Calif Mon Jan 12. Weir flow has ended at Colusa and Fremont Weirs, and is expected to end at Tisdale Weir Tue Jan 13. The current forecast shows chances of light to moderate precipitation in Northern and Central Calif Wed Jan 14, followed by mostly dry weather Thu-Fri Jan 15-16, resuming chances of precip in Northern and Central Calif Sat-Sun Jan 17-18. Snow levels in the Northern Sierra are forecasted to be near 7500' Tue, 6500' Wed, and 4500' Thu. Snow levels in the Southern Sierra are forecasted to be near 8500' Tue, lowering to near 7500' Wed and 6000' Thu. The next update will be issued about Jan 20 unless there are significant hydrologic changes.