Weather Alert in California
Winter Storm Warning issued February 16 at 2:40PM PST until February 18 at 4:00PM PST by NWS Eureka CA
AREAS AFFECTED: Del Norte Interior; Northern Humboldt Interior; Southern Humboldt Interior
DESCRIPTION: * WHAT...Heavy snow expected for elevations above 2000 feet. Total snow accumulations between 4 and 10 inches. Locally up to 22 inches expected above 3500 feet. Winds gusting as high as 35 mph. * WHERE...Humboldt Interior and Del Norte Interior. * WHEN...From 7 PM this evening to 4 PM PST Wednesday. * IMPACTS...Travel could be very difficult to impossible. Tire chains may be necessary if travelling through mountain passes. Gusty winds and heavy snow could bring down trees and power lines. Road closures are possible. * ADDITIONAL DETAILS...The heaviest snowfall rates are expected tonight through Tuesday morning. There is the potential for snow level as low as 1500 feet with the heaviest snowfall amounts.
INSTRUCTION: If you must travel, 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. Persons are urged to stay indoors until conditions improve. If you must go outside, dress in layers. Several layers of clothes will keep you warmer than a single heavy coat. Cover exposed skin to reduce your risk of frostbite or hypothermia. Gloves, a scarf, and a hat will keep you from losing your body heat. Persons should delay all travel if possible. If travel is absolutely necessary, drive with extreme caution and be prepared for sudden changes in visibility. Leave plenty of room between you and the motorist ahead of you, and allow extra time to reach your destination. Avoid sudden braking or acceleration, and be especially cautious on hills or when making turns. Make sure your car is winterized and in good working order. Persons should consider delaying all travel. Motorists should use extreme caution if travel is absolutely necessary. Do not touch downed lines and report any power outages to your electric company. Travel is highly discouraged due to slick roadways and the possibility of downed trees and power lines.
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Weather Topic: What are Cirrus Clouds?
Home - Education - Cloud Types - 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
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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