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Flood Watch Issued for Portions of Southwest California

October 20, 2026 · wweather1 editorial · 1 min read

The National Weather Service has issued a Flood Watch for parts of southwest California due to potential excessive rainfall. The watch remains in effect from Wednesday morning through Thursday afternoon.

A Flood Watch has been issued by the National Weather Service in Los Angeles/Oxnard, California. The alert covers portions of southwest California, specifically including the Santa Barbara County Interior Mountains, Santa Barbara County Southeastern Coast, Santa Barbara County Southwestern Coast, Santa Ynez Mountains Eastern Range, Santa Ynez Mountains Western Range, and the Santa Ynez Valley.

Excessive rainfall could lead to flooding in the affected regions. Rain rates are anticipated to reach between 0.50 and 1.00 inch per hour, with the heaviest precipitation expected from Wednesday into Wednesday night.

Potential impacts include flooding in poor drainage and urban areas. Additionally, extensive street flooding as well as the flooding of creeks and rivers are possible during the duration of the watch.

Why it is dangerous and what to do

⚠️ Safety
• Monitor later forecasts and stay alert for possible Flood Warnings.
• Be prepared to take action if flooding develops, especially if living in an area prone to flooding.
📊 The numbers, from wweather1 data
Santa Barbara: now +23°, Mostly clear.
That is 2° below the October climate norm.
The record for this date is +34° (1964).
Three-day forecast: 20 October: +23°/+16° · 21 October: +20°/+16° · 22 October: +21°/+16°
The figures are computed automatically from the Open-Meteo/ERA5 archive — no eyeball estimates.

🌍 Weather in nearby cities

📰 Data source: NWS. Forecast and analysis — wweather1, based on Open-Meteo / met.no data.

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