As of about 4 PM Saturday afternoon, authorities are reporting mud and debris over part of the Angeles Crest Highway eight miles from the 210.  CHP and sheriff's are deployed around the area, so we (that is, me) is re-activating our emergency protocols — which means we'll be monitoring scanner traffic and all media, give you the updates as we receive them, and ask our wonderful readers to report what's going on in their area.  Just like the Station Fire! We aren't looking at Station Fire-level disaster yet, but we want to be ready for anything.

 UPDATE 4:45 

Per scanner, sheriffs are trying to mount a rescue for four mountain bikers who are stranded by rising water on the trail behind JPL.  Air 5 (the sheriff's copter) is grounded.

KTLA has a good summary here of the situation so far. Of interest:

Multiple landslides were reported on state Route 2 between La Canada Flintridge and Mount Wilson, particularly near the Mount Lukens Truck Trail turnoff, said Captain Frank Reynoso of the Los Angeles County Fire Department.

The road in the area has been deemed "impassable," Reynoso said.

 UPDATE 5:25 

The overview seems to be that the sheriffs want to clear the hill of all people, because of big storms on the way.  Right now, they're preparing to rescue about 20 cars with people sheltering at Newcomb's Ranch, or see if its feasible to house them all night.  Also still trying to come up with a plan for the mountain bikers behind JPL.

We're not going to be reporting everything going on on ACH and environs, but we'll keep you informed if anything will affect the Altadena area.

 UPDATE 9:50 

Back from the Holiday Shop Hop, and catching up with what's going on …

Right now:

• Altadena Search & Rescue is deployed in Eaton Canyon to locate four missing hikers. 
• A flash flood watch remains in effect thru Sunday morning for Station Fire burn areas.