Weather Alert in Texas
Flood Warning issued July 17 at 7:49PM CDT until July 18 at 1:27PM CDT by NWS Austin/San Antonio TX
AREAS AFFECTED: Frio, TX
DESCRIPTION: ...The Flood Warning continues for the following rivers in Texas... Frio River Near Derby affecting Frio County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Frio River near Derby. * WHEN...Until early tomorrow afternoon. * IMPACTS...At 7.0 feet, Moderate lowland flooding closes Farm to Market 1581 near Derby. * ADDITIONAL DETAILS... - At 7:30 PM CDT Thursday the stage was 6.6 feet. - Bankfull stage is 6.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 7:30 PM CDT Thursday was 6.8 feet. - Forecast...The river is expected to fall below flood stage just after midnight tonight and continue falling to 1.2 feet Tuesday evening. - Flood stage is 6.0 feet. - Flood History...No available flood history. - http://www.weather.gov/safety/flood
INSTRUCTION: Even 6 inches of fast-moving flood water can knock you off your feet and a depth of 2 feet will float your car. Never try to walk, swim, or drive through such swift water. If you come upon flood waters, stop, turn around and go another way. Caution is urged when walking near riverbanks. Additional information is available at www.weather.gov. The next statement will be issued Friday afternoon by 130 PM CDT.
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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
Weather Topic: What are Cumulus Clouds?
Home - Education - Cloud Types - 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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