LOS ANGELES (AP) — The National Weather Service has issued a dense fog advisory for a stretch of California coast running from Los Angeles to San Luis Obispo.

Meteorologists say the advisory will be in effect until 9 a.m. Tuesday but note that patchy fog conditions are expected to last through the week.

READ MORE: Stolen Vehicle Suspect Surrenders After Nearly 5 Hour Standoff In San Clemente

The weather service urges motorists to use caution as visibility will be reduced to a quarter-mile or less at times.

READ MORE: Glendale School Football Teams To Hold 'Virtual Practices' After Positive COVID Tests

A number of major roadways are likely to be affected including Interstates 105, 110, 405, 605, and 710, and Highways 1, 33, 101, 126, 154 and 246.

The service says the thick fog is the result of a shallow marine inversion.

MORE NEWS: 50-Year-Old Woman Missing For Nearly A Month From Santa Clarita Area

(© Copyright 2012 The Associated Press. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed.)