SAN FRANCISCO (CBS SF) — Temperatures were expected to drop below freezing in some parts of the Bay Area Wednesday night.

Forecasters with the National Weather Service say that in the wake of Tuesday’s windstorm, a cold air mass is currently in place across the San Francisco and Monterey bay areas.

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A freeze warning has been issued for inland areas, and a frost warning for urban bay shoreline areas in San Mateo, Santa Clara, Alameda and Contra Costa counties.

Forecasters said no advisories are in effect for San Francisco or the coast, however.

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Lows in Oakland and San Jose could drop to 32 degrees, with the coldest hours expected around sunrise on Thursday, according to the National Weather Service. The warmest areas are expected to be near the Bay.

Temperatures this low can be dangerous for people who are homeless and other at-risk populations. They can also damage sensitive plants and crops or stress pets and livestock.

Forecasters expect temperatures to grow more moderate through the rest of the week, with warmer weather this weekend.

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