Tule Fog has been a problem along Interstate 5 in the Sacramento Valley including today Friday

I asked the AI about whether Tule Fog would be a problem in Sacramento Valley today. this is what it said:

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Yes, Tule fog is currently impacting the

Sacramento region, with a Dense Fog Advisory in effect for the Sacramento Valley and Delta, causing very low visibility (around 1/4 mile) for morning commutes and through Friday midday, so driving is hazardous with potential for major delays. Expect widespread, thick fog, especially in the mornings, leading to slow travel and cool temperatures, with some clearing expected by Friday afternoon. 

Key Details:

• Advisory: A Dense Fog Advisory is active for Northern, Central, and Southern Sacramento Valley, Delta, and Northern San Joaquin Valley.
• Visibility: Extremely low, sometimes down to 1/4 mile or less, making driving difficult and dangerous.
• Duration: Expect it to persist through Friday morning and potentially into midday, reports.
• Impact: Reduced visibility, slow morning commutes, and cool daytime temperatures. 

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Recommendation:

• Drive with Extreme Caution: Use low beams, allow extra travel time, and be prepared for sudden stops.
• Check Updates: Monitor the National Weather Service (NWS) Sacramento for real-time alerts. 

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• Northern California: Fog lingering in the Central Valley - KCRA

  Nov 25, 2025 — Another foggy start for the Valley, but mainly sunny skies are forecast for the Foothills and Sierra. ... Another day,

  

  KCRA

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Dense fog advisory affecting Central Valley until Friday midday

Dec 4, 2025 — Read more on our AI policy here. The NWS Sacramento CA issued a dense fog advisory at 10:12 p.m. on Thursday in effect ...

Sacramento Bee

Zone Area Forecast for Central Sacramento Valley

Here's the forecast for the Central Sacramento Valley: * **Today** Mostly cloudy in the morning with patchy fog, highs around 52, ...

National Weather Service (.gov)