CNRFC Daily Briefing

Last issued: Fri Aug 07, 2026 at 07:37 AM PST (updated daily by 10 AM Pacific Time).
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Summary:

High pressure over the 4-Corners region will continue to result in widespread above-normal temperatures through the weekend in the range of +5F to +15F over seasonal normals with some moderation possibly early next week.
Increasing moisture associated with the monsoon will begin to draw northward across the region with the opportunity for showers and thunderstorms each afternoon and evening over the central/southern Sierra along with points east over NV and south over southeast CA.
Little change in river levels is expected over the next several days.
Rio Vista is forecast to reach/exceed Action/Monitor Stage briefly Sat, Sun, and Mon nights.

Confidence: High

Staffing Level: Normal

Detailed Hydrometeorological Discussion: www.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	Action/ Monitor	Minor Flood	Moderate Flood	Major Flood	Latest Observed Stage / Flow	Latest Observed Date / Time	Max Forecast Stage / Flow
RVBC1	SACRAMENTO	RIO VISTA	7.4	11.9	20.4	21.4	3.54 / NA	08/07 07:45 AM PDT	7.50 / NA
NOTE Stage is presented in "Feet" while Flow (Storage at CLKC1) is presented in "cfs" ("Acre-Feet").