Weather Alert in Texas
Heat Advisory issued May 13 at 12:53PM CDT until May 14 at 1:00PM CDT by NWS Austin/San Antonio TX
AREAS AFFECTED: Llano; Burnet; Williamson; Val Verde; Edwards; Real; Kerr; Bandera; Gillespie; Kendall; Blanco; Hays; Travis; Bastrop; Kinney; Uvalde; Medina; Bexar; Comal; Guadalupe; Caldwell; Maverick; Zavala; Frio; Atascosa; Wilson; Karnes; Gonzales; Dimmit
DESCRIPTION: * WHAT...For the Heat Advisory, air temperatures near 104 degrees, except near 110 along the Rio Grande. For the Extreme Heat Warning, dangerously hot conditions with air temperatures of 105 to 108 degrees, with near 115 degrees along the Rio Grande. * WHERE...A portion of south central Texas. * WHEN...For the Heat Advisory, until 1 PM CDT Wednesday. For the Extreme Heat Warning, from 1 PM to 9 PM CDT Wednesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses.
INSTRUCTION: Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
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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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