Bloody School Break-In + Flights Grounded + Decades-High Whale Deaths: NorCal In Brief

SAN FRANCISCO, CA — As we head into the new week, we've rounded up the stories you may have missed Saturday and Sunday to prepare you for Monday.

But before we jump into Northern California's top stories, residents should expect cooler weather to continue this week, according to the National Weather Service. Also, a coastal flood advisory will be in effect from 7 p.m. Monday through midnight for San Francisco, the North Bay interior valleys and San Francisco Bay shoreline counties.

"Below normal temperatures continue through the week," NWS San Francisco forecasters wrote Monday. "Gusty winds return late tonight and continue through Monday night along the coast, ridgetops, and mountain gaps/passes."

In other news, two men were arrested after a bloody break-in at a middle school, a martial arts instructor was arrested on child porn charges; a teen was arrested after a deadly rollover crash during a police pursuit; and the brother of a former NFL player was arrested after crashing into a post office.

Plus, scientists have responded to 21 gray whale deaths in the San Francisco Bay Area this year, the most in 25 years, according to the Marine Mammal Center. The latest washed up earlier this month in Richmond and marked the highest number of gray whale fatalities since 2000.

Here are some of the stories you may have missed:

2 Arrested After Bloody Break-In At NorCal Middle School

Responding officers searched the campus and found large amounts of blood, including pooling, bloody footprints and a bloody trail.

Alaska Airlines Grounds All Flights After A Tech Outage

An IT outage grounded the fleet Sunday, likely causing travel delays at airports nationwide heading into Monday.

6 Charged In Drug Sales In San Francisco

All denied selling drugs to undercover San Francisco police officers, the District Attorney's Office said.

Bay Area Martial Arts Instructor Arrested For Child Porn

Adrian Walter, 48, was also being investigated for potentially chatting with underage girls online.

Crews Knock Down Overnight Fire At Bay Area Post Office

No injuries were reported.

Gray Whale Deaths Climb To Highest In 25 Years In San Francisco Bay Area

The latest washed up July 7 and marked the highest number of gray whale fatalities since 2000.

Pat Tillman's Brother Arrested After Crashing Into Post Office: Reports

The intentional crash caused a fire at the post office, according to reports.

Police Seek Public's Help After Spate Of Home Burglaries

Deputies have been conducting neighborhood canvasses and are increasing patrols in the area.

Teen Arrested After Deadly Crash, Police Chase In North Bay

A 17-year-old was arrested on suspicion of vehicular manslaughter and driving under the influence after the car he was driving rolled over.

Why Children Are Disappearing From This Bay Area City: Report

In this wine country town, the share of residents under 18 dropped from 25 to 17 percent.

3 Meteor Showers Now Active Over CA Skies: How To Watch

The highly anticipated Perseid meteor shower started Monday.

CA Beaches Among Nation's Top Spots For Theft, Report Finds

Watch your bags: A new study is casting a cautionary glow over California’s sprawling, sandy beaches.

New CA Bill Aims To Ban Loud Commercials On Streaming Platforms

A Golden State lawmaker aims to crack down on commercials that suddenly blare at an extreme volume on streaming platforms like Hulu.

Trump Sues CA Over Skyrocketing Egg, Pork Prices

A consumer watchdog applauded the Trump administration's effort to nix a group of laws that they say have driven up food prices.