At 9:54 p.m. on Monday, the National Weather Service issued an updated freeze warning valid for Tuesday between midnight and 8 a.m. for Larimer County below 6,000 feet/Northwest Weld County, Boulder/Jefferson counties below 6,000 feet/West Broomfield County, North Douglas County below 6,000 feet/Denver/West Adams and Arapahoe counties/East Broomfield County, Elbert/central and east Douglas counties above 6,000 feet and Central and East Adams and Arapahoe counties.

The NWS states to be ready for, “Freezing or near freezing low temperatures between 29 and 34 degrees. The coldest readings will occur from Fort Collins through Longmont, and also east and south of Denver metro.”

“Frost and freeze conditions could kill crops and other sensitive vegetation. Damage may also occur to unprotected outdoor plumbing,” comments the NWS. “Take steps now to protect tender plants from the cold, either moving them indoors or covering with blankets. To prevent water pipes from freezing, wrap or drain any above ground sprinkler systems.”

Freeze watch or warning – this is what it means

Freeze warnings are issued from May to October (but can be extended if necessary), when low temperatures are expected to be 29-32 degrees. If there is a potential for temperatures to fall into these thresholds, a freeze watch may be issued a few days ahead of time.

According to the NWS, if a freeze warning or watch is issued for your area, there is little you can do to protect plants. If you can move your sensitive plants inside, do so because the freeze will likely kill them, depending on the severity of conditions.

Source: The National Weather Service