CNRFC Daily Briefing

Last issued: Tue Mar 28, 2023 at 08:54 AM PST (updated daily by 10 AM Pacific Time).
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Summary:

Slow moving weather system forecast to bring moderate to locally heavy precip today through Wednesday as it moves southward along the CA coast.
Highest precip totals expected along the northern/central CA coast, and then inland over the Shasta Lake drainage and down the length of the Sierra with totals generally ranging from an additional 1" to 4". Freezing levels from 3 kft north to 9 kft south, dropping to 2 kft north to 5 kft south as the cooler airmass moves in.
High flow will continue throughout the San Joaquin system due to reservoir releases.
Minor river rises are expected starting today throughout most of CA due to the current storm.

Confidence: Medium

Staffing Level: Normal

Detailed Hydrometeorological Discussion: cnrfc.noaa.gov/discussion

River Guidance Points Forecast Above Specified Stage Definitions (Select NWS ID for Specified Graphical RVF)

NWS ID	River / Creek	Gage / Station	Monitor Stage	Flood Stage	Danger Stage	Latest Observed Stage / Flow	Latest Observed Date / Time	Max Forecast Stage / Flow	Forecast Status
YDRC1	SANTA MARGARITA	YSIDORA	8.2	11.2		7.90 / 166	03/28 09:15 AM PDT	8.3 / 509	Above Monitor
CLAC1	SACRAMENTO	COLUSA WEIR	60.9	70.1	71.1	59.87 / 0	03/28 10:00 AM PDT	63.9 / 5,193	Above Monitor
CLUC1	SACRAMENTO	COLUSA BR	63.0	70.0	71.0	52.21 / 18,226	03/28 09:45 AM PDT	63.9 / 39,044	Above Monitor
TISC1	SACRAMENTO	TISDALE WEIR	44.1	51.6	52.6	42.94 / 0	03/28 09:15 AM PDT	47.2 / 16,125	Above Monitor
FMWC1	SACRAMENTO	FREMONT WEIR	32.0	39.5	40.5	31.47 / 53,900	03/28 09:15 AM PDT	33.0 / 68,547	Above Monitor
LSBC1	YOLO BYPASS	LISBON	13.0	19.0	26.2	13.1 / NA	03/28 09:15 AM PDT	13.6 / NA	Above Monitor
CLKC1	CLEAR LAKE	LAKEPORT	8.0	9.0		7.95 / 331,996	03/28 09:15 AM PDT	8.2 / 343,880	Above Monitor
MEEC1	BEAR CK	MCKEE ROAD	17.0	23.0		8.63 / 495	03/28 09:45 AM PDT	19.8 / 3,686	Above Monitor
STVC1	MERCED	STEVINSON	68.0	71.0		71.23 / 5,873	03/28 10:00 AM PDT	71.3 / 5,885	Above Flood
NWMC1	SAN JOAQUIN	NEWMAN	63.0	69.4	70.4	65.42 / 16,569	03/28 09:45 AM PDT	65.6 / 17,725	Above Monitor
PATC1	SAN JOAQUIN	PATTERSON	48.0	54.7	55.7	49.56 / 17,705	03/28 09:45 AM PDT	50.0 / 18,824	Above Monitor
MDSC1	TUOLUMNE	MODESTO	50.5	55.0		54.38 / 10,373	03/28 09:45 AM PDT	54.5 / 10,490	Above Monitor
VNSC1	SAN JOAQUIN	VERNALIS	24.5	29.0	29.5	29.38 / 35,343	03/28 09:45 AM PDT	29.5 / 35,634	Above Flood
MOSC1	SAN JOAQUIN	MOSSDALE	19.5	28.5	29.5	20.2 / NA	03/28 09:45 AM PDT	20.2 / NA	Above Monitor
MHBC1	COSUMNES	MICHIGAN BAR	7.0	12.0		6.02 / 2,029	03/28 09:30 AM PDT	7.6 / 5,307	Above Monitor
MCNC1	COSUMNES	MCCONNELL	36.0	42.0		30.8 / NA	03/28 09:15 AM PDT	38.4 / NA	Above Monitor
THTC1	MOKELUMNE	BENSON'S FERRY	12.0	17.0		10.5 / NA	03/28 09:15 AM PDT	12.4 / NA	Above Monitor
NOTE Stage is presented in "Feet" while Flow (Storage at CLKC1) is presented in "cfs" ("Acre-Feet").

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