Around 24 million people across California are under flood watches Friday morning as Los Angeles braces for what could be a month's worth of rain in a day.

Burn scars — slicked by fire and stripped of plants — are especially vulnerable. A storm after the Thomas Fire in 2018 spurred debris flows in Montecito that killed 23 people. And in February, a debris flow in the Palisades Fire burn zone swept a Los Angeles Fire Department member and his SUV into the Pacific Ocean .

Forecasters say coastal areas could get 2 inches of precipitation while inland areas record upwards of 3 inches.

On Friday at 10:19 a.m. the NWS Seattle WA issued a flood advisory in effect until 3:15 p.m. The advisory is for King, Kitsap, Mason, Pierce, Snohomish and Thurston counties.

An updated flood watch was issued by the NWS Phoenix AZ on Thursday at 11:48 p.m. valid for Saturday between 4 a.m. and 10 p.m. for Joshua Tree.

Boeing Field in Seattle had already seen 1.1 inch of rain by 11 a.m., according to the National Weather Service's Seattle office.

The Orange County and Santa Ana Mountains area is the focus of a flood watch issued at 11:49 a.m. on Thursday by the National Weather Service. The watch is valid for Saturday, Nov. 15 between 4

Los Angeles County is under a flood advisory which was released by the National Weather Service on Friday at 8:14 a.m. The advisory is in effect until noon.

On Friday at 12:09 p.m. a flood watch was issued by the NWS Phoenix AZ valid for Saturday between 4 a.m. and 10 p.m. for Chiriaco Summit.

A storm this weekend is expected to bring between three and six inches of rain through Saturday in Southern California, creating risks of debris flows. Evacuation warnings were issued for burn scar areas.