Fog to bring air stagnation this week

RITZVILLE - The National Weather Service has issued an air stagnation warning until 11 a.m. Thursday, Nov. 30.

The service said freezing, foggy conditions will trap pollutants and other particulates in the air, reducing air qualitymuch of the week.

The warning covers much of Eastern Washington.

The warning is expected to be lifted Thursday before a new cold front moves across the region, potentially bringing snow to Adams County.

The forecast calls for a 40% chance of snow on Thursday night and a 50% chance Friday morning, turning into a 50% chance of a rain-snow mix Friday afternoon.

The rain-snow mix is expected to continue Saturday and Sunday, turning to rain Monday.