Temperatures dipped into the mid-20s early today, causing frost in the valleys of Riverside County, where strong gusty winds were also expected this week.
A trough of low pressure moving southward through the Great Basin into Arizona is going to spur strong gusty north- to-northeast winds to inland areas through Tuesday, according to the National Weather Service.
The agency issued a frost advisory for the Inland Empire until 8 a.m., and a high wind warning for the same area was set to expire at 4 p.m.
A lesser wind advisory was scheduled to go in effect for the valleys from 4 p.m. today to 4 p.m. Tuesday. In the mountains, a wind advisory will remain in place until 4 p.m. Tuesday, according to the Weather Service. A wind advisory is issued when winds of 35 mph or greater are expected.
“Winds this strong can make driving difficult, especially for high profile vehicles. Watch for debris on roadways and use extra caution,” said a Weather Service advisory.