Storm Set to Hit Pasadena, Altadena Early Next Week

A storm system moving into Southern California next week is expected to bring widespread rain and gusty winds, forecasters said Friday.

The National Weather Service said there was still variability about the strength of next week’s storm.

“Unfortunately, there is still a range of outcomes which means an uncertain forecast. It still looks like a mostly moderate-type rain event with generally minor impacts, but a few projections remain which favor a more significant event,” the NWS stated.

Early estimates suggest most areas will see moderate rainfall, with about an inch in valley regions and possibly two to three inches in foothills and mountains.

“All of the moisture from this system originates from the warmer ocean waters and this will keep the snow levels at or above 8,000 feet,” the NWS said.

Temperatures are expected to cool significantly, with highs dropping to 63 on Tuesday and near 61 by Wednesday.

Forecasters said next week’s anticipated rainfall poses only minimal threat of triggering destructive mudslides or debris flows in Altadena and Pasadena recent burn areas. However, some risk remains, and the total rainfall amounts could vary widely, according to the NWS.

Here is the latest NWS forecast for Altadena and Pasadena, as of 3:19 a.m. Sunday:

Today: Sunny, with a high near 70. Light and variable wind becoming southwest 5 to 10 mph in the morning.

Tonight: Mostly clear, with a low around 48. Southeast wind around 5 mph becoming north after midnight.

Sunday: Sunny, with a high near 73. Calm wind becoming southeast around 5 mph.

Sunday Night: Partly cloudy, with a low around 49. Calm wind.

Monday: Partly sunny, with a high near 73. Calm wind becoming south southwest around 5 mph.

Monday Night: A 10 percent chance of rain after 4am. Mostly cloudy, with a low around 49.

Tuesday: A 30 percent chance of rain, mainly after 10am. Partly sunny, with a high near 63.

Tuesday Night: Rain likely, mainly after 10pm. Mostly cloudy, with a low around 50.

Wednesday: Rain likely, mainly before 10am. Mostly cloudy, with a high near 61.

Wednesday Night: A chance of rain. Mostly cloudy, with a low around 47.

Thursday: A chance of rain. Partly sunny, with a high near 64.

Thursday Night: A chance of rain. Partly cloudy, with a low around 46.

Friday: A slight chance of rain. Mostly sunny, with a high near 63.