Forecast Details for Chula Vista, CA

Recent Locations: Chula Vista, CA  
Current Alerts for Chula Vista, CA: Dense Fog Advisory High Surf Advisory
Today: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 64. Light and variable wind becoming northwest 5 to 10 mph in the afternoon.
Tonight: Patchy fog. Otherwise, mostly cloudy, with a low around 48. North wind around 5 mph.
Sunday: Patchy fog before 10am. Otherwise, partly sunny, with a high near 65. Northwest wind 5 to 10 mph.
Sunday Night: Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 51. Calm wind.
Monday: Patchy fog before 10am. Otherwise, partly sunny, with a high near 66. Calm wind becoming northwest around 5 mph in the afternoon.
Monday Night: Mostly cloudy, with a low around 51.
Tuesday: A chance of showers after 10am. Mostly cloudy, with a high near 63. Chance of precipitation is 40%.
Tuesday Night: A chance of showers. Mostly cloudy, with a low around 51.
Christmas Day: Mostly sunny, with a high near 61.
Wednesday Night: Mostly cloudy, with a low around 47.
Thursday: Partly sunny, with a high near 62.
Thursday Night: Mostly cloudy, with a low around 47.
Friday: Partly sunny, with a high near 63.

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Current U.S. National Radar--Current

The Current National Weather Radar is shown below with a UTC Time (subtract 5 hours from UTC to get Eastern Time).

Current U.S. National Radar

National Weather Forecast--Current

The Current National Weather Forecast and National Weather Map are shown below.

Today's National Weather Map

National Weather Forecast for Tomorrow

Tomorrow National Weather Forecast and Tomorrow National Weather Map are show below.

Tomorrows National Weather Map

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.

North American Water Vapor Map

Weather Topic: What are Cirrus Clouds?

Home - Education - Cloud Types - Cirrus Clouds

Cirrus Clouds Next Topic: Condensation

Cirrus clouds are high-level clouds that occur above 20,000 feet and are composed mainly of ice crystals. They are thin and wispy in appearance.

What do they indicate?
They are often the first sign of an approaching storm.

Next Topic: Condensation

Weather Topic: What are Contrails?

Home - Education - Cloud Types - Contrails

Contrails Next Topic: Cumulonimbus Clouds

A contrail is an artificial cloud, created by the passing of an aircraft.

Contrails form because water vapor in the exhaust of aircraft engines is suspended in the air under certain temperatures and humidity conditions. These contrails are called exhaust contrails.

Another type of contrail can form due to a temporary reduction in air pressure moving over the plane's surface, causing condensation. These are called aerodynamic contrails.

When you can see your breath on a cold day, it is also because of condensation. The reason contrails last longer than the condensation from your breath is because the water in contrails freezes into ice particles.

Next Topic: Cumulonimbus Clouds