Hi r/LosAngeles,

I wanted to give an update on the next round of Santa Ana Winds. As always, feel free to reach out with any questions. If you don’t feel comfortable posting a question: send me a chat message, and I’ll try to reply as soon as I can.

Please stay safe, vigilant, and monitor the forecast over the next few days. Listen to officials, and if they tell you to leave: do so.

TLDR Version

Gusty Santa Ana winds return by the mid-late morning hours on Monday, and continue through at least Wednesday. Fire Danger remains very high, with Red Flag Warnings issued for much of the area. This warning includes another rare Particularly Dangerous Situation (PDS) label, due to the potential for erratic and extreme fire behavior, as well as wind damage. The "PDS" covers the northern San Fernando Valley, portions of the Santa Clarita Valley, the I-5 corridor above Santa Clarita, and a large portion of Ventura County, where the winds will be the strongest.

Areas under the Red Flag Warning through Wednesday. (Now including SGV)

Monday

The winds pick up during the mid to late morning, peaking around ~10-11AM with wind gusts topping out in the 35-50mph range, mainly for Ventura County. We may see occasional gusts to 60+mph, but that should be mainly through the Mountains, Foothills, and Canyons.

This wind may leave some areas wind sheltered (light/no wind), such as the Basin and possibly parts of the SGV and San Fernando Valley (eastern SFV).

Winds will start to fill into the rest of the San Fernando Valley by the afternoon, and we may get occasional gusts for parts of the Palisades Fire, and in the mountains & foothills above the Eaton Fire.

The IE and OC wind prone areas will see wind gusts in the 35-45mph range (gustiest near canyons and passes).

We will see some tree damage and power outages (both planned and unplanned) in areas with the strong gusts.

Forecast wind gusts for 11AM Monday - Note the large portion of Ventura County seeing strong gusts.

Tuesday & Wednesday

Winds will stay gusty overnight into Tuesday. The forecasts for both days are very similar to Monday, and strong gusts are still possible. The strongest gusts will favor the same locations as Monday, and Wednesday afternoon may not see the winds filter down into the rest of the San Fernando Valley.

Forecast wind gusts for 1AM Tuesday

FYI: Red Flag Warnings

Red Flag Warnings are issued by the National Weather Service when gusty winds and low humidity are in the forecast, with dry fuels (brush). These are not evacuation warnings or orders. Red Flag Warnings are usually issued 12-24hrs before the conditions are right for fire development.

Edit: Replaced image for Red Flag Warning since the SGV is now included in the warning.