Weather Alert in Texas
Severe Thunderstorm Watch issued March 30 at 6:38PM CDT until March 31 at 2:00AM CDT by NWS Houston/Galveston TX
AREAS AFFECTED: Brazos, TX; Grimes, TX; Houston, TX; Madison, TX; Polk, TX; San Jacinto, TX; Trinity, TX; Walker, TX
DESCRIPTION: The National Weather Service has issued Severe Thunderstorm Watch 77 in effect until 2 AM CDT Monday for the following areas In Texas this watch includes 8 counties In southeast Texas Brazos Grimes Houston Madison Polk San Jacinto Trinity Walker This includes the cities of Bryan, Coldspring, College Station, Corrigan, Crockett, Groveton, Huntsville, Livingston, Madisonville, Navasota, Shepherd, and Trinity.
INSTRUCTION: N/A
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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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