Freeze warning for Carquinez Strait and Delta and Northern San Joaquin Valley for Friday

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On Thursday at 12:16 p.m. the NWS Sacramento CA released a freeze warning valid for Friday between midnight and 9 a.m. for Carquinez Strait and Delta and Northern San Joaquin Valley.

The NWS describes, “Sub-freezing temperatures of 28 to 32 degrees expected.”

“Frost and freeze conditions could kill crops and other sensitive vegetation,” says the NWS. “Take steps now to protect tender plants from the cold.”

This warning is in effect until Friday at 9 a.m.

What to do if there is a freeze watch or warning

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

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This story was originally published February 19, 2026 at 12:21 PM.