The first major rain storm of the year is expected to possibly come in as soon as this afternoon.

The National Weather Service is forecasting either rain or showers for the rest of the week for the Porterville area, so it should be a wet Thanksgiving week.

A winter storm warning for the San Joaquin Valley will be in effect from 4 p.m. Today through 4 a.m. Friday.

Today’s forecast calls for a 30 percent chance of rain after 4 p.m. Today’s high is forecasted to be 55 and it should still be a sunny day today.

But that changes drastically late tonight after 10 p.m. The forecast calls for an 80 percent chance of rain with the potential of at least a quarter of an inch of rain falling. 

Conditions will also be windy late tonight with winds up to 15 miles per hour. The overnight low is forecast to be 41.

Wednesday is expected to be the wettest day. Rain is expected to continue through Wednesday morning and then showers after 10 a.m. with the possibility of a thunderstorm. The forecast is for a 90 percent chance of rain with between a quarter and a half of inch possible on Wednesday.

By Wednesday night, it’s still expected another tenth to a quarter of an inch of rain could fall. Showers and possibly another thunderstorm is forecast for Wednesday night.

It won’t be as wet on Thursday, Thanksgiving Day, but the forecast still calls for a chance of rain before 10 a.m. and a chance of showers and thunderstorms between 10 a.m. and 4 p.m. Rainfall that day is expected to be less than a tenth of an inch.

On Thursday night, showers are likely with the possibility of another thunderstorm before 10 p.m., then a chance for rain after 10. Less than a tenth of an inch is expected on Thursday night.

But the storm should clear out in time for Friday’s 40th annual Christmas Tree Lighting to be held at 6 p.m. at Centennial Park. The forecast calls for a 40 percent chance of rain before 10 a.m but only a 20 percent chance of rain Friday night.

Saturday it’s expected to be sunny again, with a high of 49. A 20 percent chance of rain is forecast for Saturday night and a 30 percent chance of rain is forecast for Sunday.

Todays’ high is expected to be 55 with a low of 41, Wednesday’s high and low are expected to be 49 and 44, Thursday’s high and low are expected to be 48 and 42 and Friday’s high is expected to be 46.

There will also be plenty of snow in the mountains with the forecast calling for snow as low as 3,000 feet.

The forecast calls for Camp Nelson to receive between 7 and 11 inches of snow tonight, and up to almost a foot and a half of snow on Wednesday. 

By Wednesday night, the amount of snow expected for Camp Nelson will drop but Camp Nelson could still receive 3 to 7 inches of snow on Wednesday night and 1 to 3 inches of snow on Thanksgiving Day.

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