Weather Alert in Oregon
Winter Weather Advisory issued March 3 at 2:44AM PST until March 4 at 10:00PM PST by NWS Medford OR
AREAS AFFECTED: South Central Oregon Cascades
DESCRIPTION: * WHAT...Snow expected above 5000 feet. Total snow accumulations 7 to 10 inches. Winds gusting as high as 40 mph over high and exposed terrain. * WHERE...South Central Oregon Cascades, including Diamond Lake and Crater Lake National Park impacting highways 138, 230 and 62. * WHEN...From 4 AM to 10 PM PST Wednesday. * IMPACTS...Plan on slippery road conditions and delays in your commute. The hazardous conditions could impact the Wednesday morning and evening commutes. * ADDITIONAL DETAILS...Probability of snow accumulation between 4 AM Wednesday to 4 AM Thursday. Probabilities don't always overlap the hazard's time range. Location >= >= >= >= 4in 6in 8in 12in -------- ---- ---- ---- ---- Crater 100% 94% 71% 36% Lake Visit weather.gov/mfr/winter for additional snow probabilities
INSTRUCTION: Slow down and use caution while traveling. Call 511 or visit tripcheck.com for road information.
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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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