Forecast Details for Chula Vista, CA

Recent Locations: Chula Vista, CA  
Current Alerts for Chula Vista, CA: Flood Watch Wind Advisory
Winter Storm Watch
Overnight: Partly cloudy, with a low around 51. Northwest wind around 5 mph.
Friday: Mostly sunny, with a high near 62. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night: A chance of rain after 11pm. Mostly cloudy, with a low around 52. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Saturday: Rain and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 57. Breezy, with a south wind 20 to 25 mph becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 51. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday: Showers and possibly a thunderstorm. High near 60. Chance of precipitation is 90%.
Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 50. Chance of precipitation is 50%.
Monday: A chance of showers. Cloudy through mid morning, then gradual clearing, with a high near 63.
Monday Night: Mostly clear, with a low around 49.
Tuesday: Sunny, with a high near 68.
Tuesday Night: Mostly clear, with a low around 52.
Wednesday: Sunny, with a high near 72.
Wednesday Night: Increasing clouds, with a low around 53.
Thursday: Partly sunny, with a high near 65.

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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

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Today's National Weather Map

National Weather Forecast for Tomorrow

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Tomorrows National Weather Map

North America Water Vapor (Moisture)

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North American Water Vapor Map

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

Weather Topic: What are Cumulus Clouds?

Home - Education - Cloud Types - Cumulus Clouds

Cumulus Clouds Next Topic: Drizzle

Cumulus clouds are fluffy and textured with rounded tops, and may have flat bottoms. The border of a cumulus cloud is clearly defined, and can have the appearance of cotton or cauliflower.

Cumulus clouds form at low altitudes (rarely above 2 km) but can grow very tall, becoming cumulus congestus and possibly the even taller cumulonimbus clouds. When cumulus clouds become taller, they have a greater chance of producing precipitation.

Next Topic: Drizzle