Dangerous Frost Advisory Issued for 5 Counties in Colorado as Temperatures Plummet

A Frost Advisory is in effect from 2 a.m. to 9 a.m. MDT Friday for the San Luis Valley in southern Colorado, with temperatures as low as 35 degrees.

The National Weather Service in Pueblo issued the advisory Thursday afternoon.

Who Is Affected

The advisory covers the Northern, Central and Southern San Luis Valley below 8,500 feet.

Cities include Alamosa, Del Norte, Monte Vista, Center, La Jara, Antonito, San Luis, Fort Garland, Sanford, Blanca and Manassa.

What to Expect

Temperatures as low as 35 degrees will result in frost.

Frost could harm sensitive outdoor vegetation. Plants left uncovered may be killed.

The chill comes after an unusually warm stretch. NWS Pueblo said temperatures were well above normal on Thursday.

Source: NWS Pueblo on X

Pattern Change Next Week

A cooler, wetter pattern is on the way. NWS Pueblo said confidence is high for a cool down and more precipitation next week, especially in the mountains.

Source: NWS Pueblo on X

Safety Reminders

Take steps now to protect tender plants from the cold.

Cover sensitive plants or bring potted plants indoors before Friday morning.

For live updates, follow NWS Pueblo on X.