CNRFC Daily Briefing

Last issued: Tue May 19, 2026 at 08:38 AM PST (updated daily by 10 AM Pacific Time).
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Summary:

Low pressure resides over the interior of the western US, while high pressure across the eastern Pacific moves closer to the region to end the week, shifting inland by early next week. Temps will rise to +5F to +15F over averages, except at the coast with marine influence.
There is a hint of the opportunity of scattered afternoon showers developing near the Sierra crest from Thursday into the weekend. Low confidence with this scenario, as model agreement in this possibility is not strong.
In high elevation basins of the Sierra, snowmelt runoff will increase over the coming week as temperatures rise.

Confidence: Medium

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
* NO River Guidance (Flood Forecast) Points Currently Forecast At Or Above Critical Stage Definitions *
NOTE Stage is presented in "Feet" while Flow (Storage at CLKC1) is presented in "cfs" ("Acre-Feet").