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Damp, Cool Weekend Is the Calm Before the Storm, Season’s First Major Rain Event Expected Monday

Published on Saturday, October 23, 2021 | 6:40 am
 

Pasadena will experience the season’s first major rainstorm on Monday morning, getting just a taste of the Category 5 atmospheric river event predicted to sweep across Central and Northern California this weekend, forecasters said.

The storm will bring moderate but at times heavy rain pushing into L.A. County late Monday morning and lasting through the afternoon, along with gusty winds and cooler temperatures, according to the National Weather Service.

In anticipation, the City of Pasadena announced that sand and sandbags are available at Pasadena Fire Stations 37 (3430 E. Foothill Blvd.) and 38 (1150 Linda Vista Ave.) for Pasadena residents to protect against mudflows and flooding.

The NWS predicts the front will bring several hours of steady precipitation, giving way to a much-needed wetting rain. 

The rain will taper off through Monday late afternoon, with lingering drizzle into Monday evening, forecasters said.

NWS forecasters early Saturday predicted Pasadena will get from 0.5 to 1.5 inches of precipitation.

By Tuesday, the upper-level trough will have raced well east and out of California, followed by weak ridging that will bring back a warm and dry pattern. 

Here is the detailed National Weather Service forecast:

Saturday: Patchy drizzle with a slight chance of rain before noon. Patchy fog before noon. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 71. South wind around 5 mph.

Saturday Night: Mostly cloudy, with a low around 54. Southwest wind 5 to 10 mph becoming west northwest after midnight.

Sunday: Patchy fog before noon. Otherwise, mostly cloudy, with a high near 71. Calm wind becoming south southwest around 5 mph in the afternoon.

Sunday Night: A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 52. South southeast wind 5 to 10 mph.

Monday: Rain. High near 62. The chance of precipitation is 90%.

Monday Night: A 30 percent chance of rain before midnight. Partly cloudy, with a low around 47.

Tuesday: Sunny, with a high near 68.

Tuesday Night: Clear, with a low around 48.

Wednesday: Sunny, with a high near 76.

Wednesday Night: Clear, with a low around 53.

Thursday: Sunny, with a high near 82.

Thursday Night: Clear, with a low around 54.

Friday: Sunny, with a high near 83.

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One thought on “Damp, Cool Weekend Is the Calm Before the Storm, Season’s First Major Rain Event Expected Monday

  • A small note on the article:
    The annual rain with a lot of water is well known. Did they build the city of Padadena and the country water retention basins and water drainage channels out of concrete? Do the residents have larger rainwater tanks? Could the rainwater also be stored when it is dry and arid again?

    Why am I writing this?
    I live in Europe, Germany, Bavaria, near Regensburg and I store the rainwater in a 4000 liter tank and protect my property with a stable concrete wall from the heavy rain and dirty water. My motto is always preventive thinking and acting is better than complaining later.