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Observed at 03:00, Thursday 30 January BBC Weather in association with MeteoGroup, external All times are Pacific Standard Time (America/Los_Angeles, GMT-8) unless otherwise stated.

A National Weather Service flood watch for Concord and the East Bay is expected to remain in effect through 4 a.m. Wednesday.

Why do groundhogs emerge on February 2 if it’s not to predict the weather?

Partly cloudy with a high of 58 °F (14.4 °C). Winds W at 7 to 9 mph (11.3 to 14.5 kph). Night - Clear. Winds variable at 4 to 6 mph (6.4 to 9.7 kph). The overnight low will be 38 °F (3.3 °C ...

Higher pressure is usually associated with sunny weather, lower pressure with stormy weather. The temperature to which the air needs to be cooled for moisture to condense, for example, as dew.

Night - Clear. Winds variable at 4 to 9 mph (6.4 to 14.5 kph). The overnight low will be 42 °F (5.6 °C). Sunny with a high of 62 °F (16.7 °C). Winds from NE to NNE at 10 to 17 mph (16.1 to 27. ...

You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.