Weather Alert in California

Recent Locations: Churubusco, IN   Saratoga, TX   Stevenson Ranch, CA  
Current Alerts for Stevenson Ranch, CA: High Surf Advisory

Winter Weather Advisory issued February 7 at 11:07AM PST until February 11 at 4:00PM PST by NWS Reno NV

AREAS AFFECTED: Mono

DESCRIPTION: * WHAT...Snow. Snow accumulations of 4 to 8 inches along and just west of Highway 395 from June Lake to Mammoth Lakes. Above 8000 feet, 6 to 12 inches with up to 18 inches along the Sierra crest. Along Highway 395 near Bridgeport and Lee Vining, up to 2 inches. Winds gusting as high as 35 mph, with gusts reaching 70 mph along the Sierra crest. * WHERE...Mono County. * WHEN...From 10 PM Monday to 4 PM PST Wednesday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Tuesday morning and evening commutes. Gusty winds could bring down tree branches.

INSTRUCTION: Slow down and use caution while traveling. Keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.

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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

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