Forecast Details for San Fernando, CA

Recent Locations: San Fernando, CA

Current Alerts for San Fernando, CA: Flood Watch High Surf Advisory
Wind Advisory

Tonight: Rain, mainly after 4am. Low around 49. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

Washington's Birthday: Rain and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 57. Southeast wind 10 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

Monday Night: Rain and possibly a thunderstorm. Low around 45. South southwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Tuesday: A 50 percent chance of rain. Partly sunny, with a high near 57. Light south southwest wind becoming southwest 10 to 15 mph in the morning. Winds could gust as high as 20 mph. New precipitation amounts between a tenth and quarter of an inch possible.

Tuesday Night: Rain. Low around 44. South southwest wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

Wednesday: Rain likely, mainly before 10am. Partly sunny, with a high near 58. Chance of precipitation is 60%.

Wednesday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 41.

Thursday: Rain likely, mainly between 10am and 4pm. Partly sunny, with a high near 57.

Thursday Night: A chance of rain, mainly before 10pm. Partly cloudy, with a low around 40.

Friday: Sunny, with a high near 61.

Friday Night: Mostly clear, with a low around 43.

Saturday: Sunny, with a high near 66.

Saturday Night: Mostly clear, with a low around 46.

Sunday: Mostly sunny, with a high near 71.

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Current U.S. National Radar--Current

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National Weather Forecast--Current

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National Weather Forecast for Tomorrow

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North America Water Vapor (Moisture)

This map shows recent moisture content over North America. Bright and colored areas show high moisture (ie, clouds); brown indicates very little moisture present; black indicates no moisture.

Weather Topic: What are Stratocumulus Clouds?

Home - Education - Cloud Types - Stratocumulus Clouds

Next Topic: Stratus Clouds

Stratocumulus clouds are similar to altocumulus clouds in their fluffy appearance, but have a slightly darker shade due to their additional mass.

A good way to distinguish the two cloud types is to hold your hand out and measure the size of an individual cloud; if it is the size of your thumb it is generally an altocumulus cloud, if it is the size of your hand it is generally a stratocumulus cloud.

It is uncommon for stratocumulus clouds to produce precipitation, but if they do it is usually a light rain or snow.

Next Topic: Stratus Clouds

Weather Topic: What are Wall Clouds?

Home - Education - Cloud Types - Wall Clouds

Wall Clouds Next Topic: Altocumulus Clouds

A wall cloud forms underneath the base of a cumulonimbus cloud, and can be a hotbed for deadly tornadoes.

Wall clouds are formed by air flowing into the cumulonimbus clouds, which can result in the wall cloud descending from the base of the cumulonimbus cloud, or rising fractus clouds which join to the base of the storm cloud as the wall cloud takes shape.

Wall clouds can be very large, and in the Northern Hemisphere they generally form at the southern edge of cumulonimbus clouds.

Next Topic: Altocumulus Clouds