Chains required on all vehicles, no exceptions Highway's 18, 38, 138, 330. Travel is extremely hazardous and should be avoided or postponed.

A Winter Storm Warning is in effect through Sunday morning. Be prepared for periods of heavy snow and strong winds to create near white-out conditions at times in the mountains.
R-3: Chains required, no exceptions

State Route 38 (to Redlands)
OPEN with R3 chain requirements
SR-18 (to Victorville & I-15)
OPEN with R3 chain requirements
SR-18 to SR-330 (to San Bernardino)
OPEN with R3 chain requirements
Route 18 is now OPEN between Boulder Bay and Bear Valley Dam
State Route 330
OPEN with R3 chain requirements
SR-18 (Lake Arrowhead to San Bernardino)
CLOSED TO NORTHBOUND TRAFFIC AT THE JCT OF SR 138 (SAN BERNARDINO CO) - DUE TO SNOW - MOTORISTS ARE ADVISED TO USE AN ALTERNATE ROUTE SOUTHBAND IS OPEN WITH R3 CHAIN REQUIREMENTS
Cal trans has closed all roads in the San Bernardino Mountains to Buses and Tractor Trailers due to extreme weather conditions and will remain closed until weather conditions improve.
Tire Chain Key
R-0: No chains required
R-1: Chains required, unless you have snow tires
R-2: Chains required, except on 4-wheel-drives with snow tires on all four wheels
R-3: Chains required, no exceptions"