Weather Alert in California

Recent Locations: Tehachapi, CA  

Special Weather Statement issued July 30 at 11:39AM PDT by NWS Los Angeles/Oxnard CA

AREAS AFFECTED: San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches; Santa Barbara County Southwestern Coast; Santa Barbara County Southeastern Coast

DESCRIPTION: ...TSUNAMI ADVISORY IS IN EFFECT FOR THE FOLLOWING LOCATIONS, ALL COASTAL AREAS OF SANTA BARBARA AND SAN LUIS OBISPO COUNTIES... ...STRONG TSUNAMI-RELATED CURRENTS TO CONTINUE FOR THE IMMEDIATE COASTAL AREAS OF LOS ANGELES AND VENTURA COUNTIES... preliminary magnitude of 8.8 centered 315 miles SW of Bering Island, Komandorski at a depth of 46 miles. * TIDE INFORMATION... Port San Luis...High tide of 4.6 ft at 307 PM PDT on Jul 30. Santa Barbara...High tide of 4.6 ft at 238 PM PDT on Jul 30. This product will be updated as new information becomes available. Stay tuned to your local news source and NOAA weather radio for further information and updates.

INSTRUCTION: N/A

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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

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