Weather Alert in Oregon
Red Flag Warning issued August 12 at 9:00PM PDT until August 13 at 8:00PM PDT by NWS Medford OR
AREAS AFFECTED: Western Rogue Basin including the Illinois Valley; Eastern Rogue Valley
DESCRIPTION: The National Weather Service in Medford has issued a Red Flag Warning, which is in effect from 2 PM to 8 PM PDT Wednesday. * IMPACTS...Moderate to strong winds combined with critically low relative humidity can lead to rapid growth and spread of new and existing fires. Outdoor burning is banned during fire season. * AFFECTED AREA...Portions of the Rogue Valley in Fire Weather Zone 622, including Medford, White City, Gold Hill, Jacksonville, Talent, Phoenix, and Ashland. In Fire Weather Zone 620, portions of the Rogue and Illinois valleys, including Merlin, Grants Pass, Wilderville, Murphy and Provolt. * WIND...Northwest 10 to 15 mph with gusts of 20 to 25 mph. * HUMIDITY...14 to 18 percent on Wednesday. * DETAILED URL...View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr
INSTRUCTION: Follow all fire restrictions. You can find your county's emergency sign up form as well as links to fire restrictions at weather.gov/medford/wildfire. One less spark, one less wildfire. Be sure you're signed up for your county's emergency alert system. Familiarize yourself with your emergency plan and make sure you listen to emergency services. Visit ready.gov/plan for more information. A Red Flag Warning is issued when we identify weather conditions that promote rapid spread of fire which may become life- threatening. This does not mean there is a fire. These conditions are either occurring now or will begin soon. It is important to have multiple ways to receive information from authorities.
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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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